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Pseudo-Dirac neutrinos and relic neutrino matter effect on the high-energy neutrino flavor composition Phys. Lett. B (IF 4.3) Pub Date : 2025-02-05 P.S. Bhupal Dev, Pedro A.N. Machado, Ivan Martínez-Soler
We show that if neutrinos are pseudo-Dirac, they can potentially affect the flavor ratio predictions for the high-energy astrophysical neutrino flux observed by IceCube. In this context, we point out a novel matter effect induced by the cosmic neutrino background (CνB) on the flavor ratio composition. Specifically, the active-sterile neutrino oscillations over the astrophysical baseline lead to an
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Solar model independent constraints on the sterile neutrino interpretation of the Gallium Anomaly Phys. Lett. B (IF 4.3) Pub Date : 2025-02-05 M.C. Gonzalez-Garcia, Michele Maltoni, João Paulo Pinheiro
We perform a global analysis of most up-to-date solar neutrino data and KamLAND reactor antineutrino data in the framework of the 3+1 sterile neutrino mixing scenario (invoked to explain the results of the Gallium source experiments) with the aim of quantifying the dependence of the (in)compatibility of the required mixing with assumptions on the initial fluxes. The analysis of solar data is performed
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Demystifying the fusion mechanism in heavy-ion collisions: A six-dimensional Langevin dissipative dynamics approach Phys. Lett. B (IF 4.3) Pub Date : 2025-02-04 Y. Jaganathen, M. Kowal, K. Pomorski
We present an in-depth investigation of heavy-ion fusion dynamics using a six-dimensional Langevin framework that enables unrestricted motion of the asymmetry parameter. The stochastic formalism naturally incorporates friction effects and energy fluctuations, providing a detailed understanding of the fusion process. The dynamics transition into the overdamped regime, facilitating rapid neck stabilization
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Extracting neutron skin from elastic proton-nucleus scattering with deep neural network Phys. Lett. B (IF 4.3) Pub Date : 2025-02-04 G.H. Yang, Y. Kuang, Z.X. Yang, Z.P. Li
Based on the relativistic impulse approximation of proton-nucleus elastic scattering theory, the neutron density distribution and neutron skin thickness of 48Ca are estimated via the deep learning method. The neural-network-generated neutron densities are mainly compressed to be higher inside the nucleus compared with the results from the relativistic PC-PK1 density functional, resulting in a significant
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Explaining the γγ + X excesses at ≈151.5 GeV via the Drell-Yan production of a Higgs triplet Phys. Lett. B (IF 4.3) Pub Date : 2025-02-04 Saiyad Ashanujjaman, Sumit Banik, Guglielmo Coloretti, Andreas Crivellin, Siddharth P. Maharathy, Bruce Mellado
The multi-lepton anomalies suggest the existence of a new scalar with a mass between 145 GeV and 155 GeV, which is compatible with indications of the associated production of a narrow resonance with a mass of ≈151 GeV. These anomalies require a sizable branching fraction of the new scalar to WW. However, because no ZZ signal at this mass has been observed, this implies that the new boson could be the
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Inner radius and energy conditions of dark matter halos surrounding Schwarzschild black holes Phys. Lett. B (IF 4.3) Pub Date : 2025-02-03 Zibo Shen, Anzhong Wang, Shaoyu Yin
We study a class of analytic models for a dark matter halo surrounding a Schwarzschild black hole sitting at the center of a galaxy, with a variable inner radius rin at which the density profile of the dark matter halo vanishes. We examine in detail how the three energy conditions are satisfied in such models. In particular, independent of concrete profile, we find that the three energy conditions
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Unregulated divergences of Feynman integrals Phys. Lett. B (IF 4.3) Pub Date : 2025-02-03 Wen Chen
Feynman integrals can be expanded asymptotically with respect to some small parameters at the integrand level, a technique known as the expansion by regions. A naive expansion by regions may break down due to divergences not regulated by the spacetime dimension, exemplified by the rapidity divergences. A criterion to identify unregulated divergences is provided in this article. The analysis is conducted
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Probing third-generation New Physics with [formula omitted] and [formula omitted] Phys. Lett. B (IF 4.3) Pub Date : 2025-01-30 L. Allwicher, M. Bordone, G. Isidori, G. Piazza, A. Stanzione
The recent observation of the K+→π+νν¯ decay by NA62 is an important milestone in precision flavor physics. Together with evidence of B+→K+νν¯ reported by Belle-II, they are the only FCNC decays involving third-family leptons where a precision close to the SM expectation has been reached. We study the implications of these recent results in the context of a new physics scenario aligned to the third
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Dark matter annihilation via Breit-Wigner enhancement with heavier mediator Phys. Lett. B (IF 4.3) Pub Date : 2025-01-30 Yu Cheng, Shao-Feng Ge, Jie Sheng, Tsutomu T. Yanagida
We propose a new scenario that both the dark matter freeze-out in the early Universe and its possible annihilation for indirect detection around a supermassive black hole are enhanced by a Breit-Wigner resonance. With the mediator mass larger than the total initial dark matter mass, this annihilation is almost forbidden at late times. Thus, the stringent cosmic microwave background and indirect detection
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Searching for signals of an exotic I = 1,JP = 2+ state of D⁎K⁎ nature and the structure of the Pc(4312) in the [formula omitted] reaction Phys. Lett. B (IF 4.3) Pub Date : 2025-01-29 Jing Song, Zi-Ying Yang, Eulogio Oset
This paper investigates the decay process Λb→Σc++D−K− with the objective of finding a predicted molecular state with isospin I=1, JP=2+ of D⁎K⁎ nature, plus finding support for the Pc(4312) state as made out of ΣcD¯. The mass distribution of the D−K− system shows distinct features as a consequence of the existence of this 2+ state, while the ΣcD¯ distribution exhibits a significant peak near the threshold
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Validity of black hole complementarity in an accelerating Schwarzschild black hole Phys. Lett. B (IF 4.3) Pub Date : 2025-01-28 Wontae Kim, Mungon Nam
Black hole complementarity has been well understood in spherically symmetric black holes. To study its validity for an accelerating Schwarzschild black hole, which has a preferred direction, we perform the thought experiment proposed by Susskind and Thorlacius and further investigate the criteria set by Hayden and Preskill. First, we obtain the conserved energy of the accelerating Schwarzschild black
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Early matter domination at colliders: Long live the glueball! Phys. Lett. B (IF 4.3) Pub Date : 2025-01-28 Fady Bishara, Filippo Sala, Kai Schmidt-Hoberg
We prove that collider searches for long-lived particles (LLPs) can test the dynamics responsible for matter domination in the early universe. In this letter we concentrate on the specific example of glueballs from a GeV-scale confining dark sector and compute the dilution of cosmological relics induced by their decay. We then show that searches for long-lived glueballs from Higgs decays test increasing
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Testing quantum gravity with dilute dipolar Bose gases Phys. Lett. B (IF 4.3) Pub Date : 2025-01-28 Asma Tahar Taiba, Abdelâali Boudjemâa
We systematically investigate the effects of quantum gravity on the ground-state properties of dilute homogeneous dipolar Bose gases using the Hartree-Fock-Bogoliubov theory based on the generalized uncertainty principle. We calculate quantum gravity corrections to the condensed fraction, the equation of state, the critical temperature and the superfluid fraction. Improved upper bounds on the generalized
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EGUP corrected thermodynamics of RN-AdS black hole with quintessence matter Phys. Lett. B (IF 4.3) Pub Date : 2025-01-28 Baoyu Tan
Reissner-Nordström anti de Sitter (RN-AdS) black hole, characterized by electric charge and negative cosmological constant, exhibits a rich thermodynamics structure. In this paper, we consider the influence of quintessence, a hypothetical dark energy component with negative pressure. We have computed the extended generalized uncertainty principle (EGUP) corrections to the thermodynamics of RN-AdS black
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Correspondence between grey-body factors and quasinormal frequencies for rotating black holes Phys. Lett. B (IF 4.3) Pub Date : 2025-01-28 R.A. Konoplya, A. Zhidenko
Although the proper oscillation frequencies of black holes (quasinormal modes) and the grey-body factors, which determine the scattering properties of black holes, represent two distinct spectral problems with different boundary conditions, a recent study has revealed an intrinsic connection between these quantities. We have shown that the correspondence between grey-body factors and quasinormal modes
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Generic symmetry analysis of charmonium decay Phys. Lett. B (IF 4.3) Pub Date : 2025-01-28 X.H. Mo
For charmonium's decaying to the final states involving merely light quarks, in light of SU(3) flavor symmetry, a systematic parametrization scheme is established, which involving binary decays, ternary decays and radiative decays.
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Search for the non-linearities of gravitational wave background in NANOGrav 15-year data set Phys. Lett. B (IF 4.3) Pub Date : 2025-01-27 Jun-Qian Jiang, Yun-Song Piao
The recently reported signal of common red noise between pulsars by several pulsar timing array collaborations has been thought as evidence of the stochastic gravitational wave background (SGWB) due to the Helling-Downs correlation. In this Letter, we search for the non-Gaussianity of SGWB through its non-linear effect on the overlap reduction function in NANOGrav 15-year data set. In particular, we
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On constraints of the (β-deformed) partition functions with W-representations Phys. Lett. B (IF 4.3) Pub Date : 2025-01-27 Yu-Sen Zhu, Ren Cuo Ji, Min-Li Li, Rui Wang
We investigate the constraints of the (β-deformed) partition functions with W-representations in the literature, which can be realized by the interpolating two-matrix models (two β-ensembles). For the non-deformed partition functions, we construct their Virasoro and higher order constraints using the total derivative operators. For the β-deformed partition functions, we derive their Virasoro constraints
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Right-handed interactions in puzzling B-decays Phys. Lett. B (IF 4.3) Pub Date : 2025-01-27 Damir Bečirević, Svjetlana Fajfer, Nejc Košnik, Lovre Pavičić
We explain the difference between the measured decay widths of b→cτν processes and of B→Kνν¯ and their values predicted in the Standard Model by introducing the right-handed interactions both to quarks and to leptons. At low energy scales, in addition to the Standard Model particles, we assume the presence of an additional neutral lepton (right-handed neutrino). We then show a specific realization
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Statistical production of Bc mesons in heavy-ion collisions at the LHC energy Phys. Lett. B (IF 4.3) Pub Date : 2025-01-23 Shouxing Zhao, Min He
The recombination production of Bc mesons in heavy-ion collisions at the LHC energy is facilitated by the abundant and highly thermalized charm (c) quarks transported in the deconfined medium created. We study the production of Bc mesons via c and bottom (b) quark recombination in a statistical fashion by placing Bc in the position of a member of the family of open b hadrons, which allows us to make
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Revisiting the proton-antiproton scattering using a constituent-quark-model based coupled-channels calculation Phys. Lett. B (IF 4.3) Pub Date : 2025-01-22 P.G. Ortega, D.R. Entem, F. Fernández, J. Segovia
Motivated by the last experimental and theoretical advances in the analysis of possible baryonium resonances, the X(1835) and their partners, we perform a constituent-quark-model based coupled-channels calculation of the proton-antiproton scattering in order to analyze the possible existence of bound states or near-threshold structures. The used NN‾ potential is derived from a G-parity transformation
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The Kramers escape rate of phase transitions for the 6-dimensional Gauss-Bonnet AdS black hole with triple phases Phys. Lett. B (IF 4.3) Pub Date : 2025-01-22 Chen Ma, Pan-Pan Zhang, Bin Wu, Zhen-Ming Xu
In this study, we obtain specific picture of the phase transitions for the 6-dimensional Gauss-Bonnet Anti-de Sitter (AdS) black hole with triple phases, using the generalized free energy we constructed and Kramers escape rate in stochastic motion. There are six possible phase transition processes between the three different stable states (small, medium, and large black hole states). During these phase
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Sketching pion and proton mass distributions Phys. Lett. B (IF 4.3) Pub Date : 2025-01-21 Xiaobin Wang, Zanbin Xing, Lei Chang, Minghui Ding, Khépani Raya, Craig D. Roberts
A light-front holographic model is used to illustrate an algebraic scheme for constructing a representation of a hadron's zero-skewness generalised parton distribution (GPD) from its valence-quark distribution function (DF) and electromagnetic form factor, FH, without reference to deeply virtual Compton scattering data. The hadron's mass distribution gravitational form factor, AH, calculated from this
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Pseudorapidity distributions of charged hadrons in lead-lead collisions at [formula omitted] Phys. Lett. B (IF 4.3) Pub Date : 2025-01-20 The CMS Collaboration, A. Hayrapetyan, A. Tumasyan, W. Adam, J.W. Andrejkovic, T. Bergauer, S. Chatterjee, K. Damanakis, M. Dragicevic, P.S. Hussain, M. Jeitler, N. Krammer, A. Li, D. Liko, I. Mikulec, J. Schieck, R. Schöfbeck, D. Schwarz, M. Sonawane, S. Templ, W. Waltenberger, C.-E. Wulz, M.R. Darwish, T. Janssen, P. Van Mechelen, N. Breugelmans, J. D'Hondt, S. Dansana, A. De Moor, M. Delcourt, F
The pseudorapidity (η) distributions of charged hadrons are measured using data collected at the highest ever nucleon-nucleon center-of-mass energy of sNN=5.36TeV for collisions of lead-lead ions. The data were recorded by the CMS experiment at the LHC in 2022 and correspond to an integrated luminosity of 0.30±0.03μb−1. Using the CMS silicon pixel detector, the yields of primary charged hadrons produced
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The inevitable quark three-body force and its implications for exotic states Phys. Lett. B (IF 4.3) Pub Date : 2025-01-20 Sungsik Noh, Aaron Park, Hyeongock Yun, Sungtae Cho, Su Houng Lee
Three-body nuclear forces are essential for explaining the properties of light nuclei with a nucleon number greater than three. Building on insights from nuclear physics, we extract the form of quark three-body interactions and demonstrate that these terms are crucial for extending the quark model fit of the meson spectrum to include baryons using the same parameter set. We then discuss the implications
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Interaction between Unruh-Dewitt detectors exclusively due to acceleration: A parallel to the FDU effect Phys. Lett. B (IF 4.3) Pub Date : 2025-01-20 Wenting Zhou, Shijing Cheng, Hongwei Yu
We have discovered an interaction between two detectors in a vacuum that emerges exclusively due to acceleration, akin to the spontaneous excitation of a single detector as predicted by the Fulling-Davies-Unruh (FDU) effect. However, this interaction contrasts sharply with the FDU effect, which suggests that a uniformly accelerated detector behaves as if it were in a thermal bath, as the discovered
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Constraint on the total width of the Higgs boson from Higgs boson and four-top-quark measurements in pp collisions at [formula omitted] = 13 TeV with the ATLAS detector Phys. Lett. B (IF 4.3) Pub Date : 2025-01-20 The ATLAS Collaboration, G. Aad, E. Aakvaag, B. Abbott, S. Abdelhameed, K. Abeling, N.J. Abicht, S.H. Abidi, M. Aboelela, A. Aboulhorma, H. Abramowicz, H. Abreu, Y. Abulaiti, B.S. Acharya, A. Ackermann, C. Adam Bourdarios, L. Adamczyk, S.V. Addepalli, M.J. Addison, J. Adelman, A. Adiguzel, T. Adye, A.A. Affolder, Y. Afik, M.N. Agaras, J. Agarwala, A. Aggarwal, C. Agheorghiesei, F. Ahmadov, W.S. Ahmed
This Letter presents a constraint on the total width of the Higgs boson (ΓH) using a combined measurement of on-shell Higgs boson production and the production of four top quarks, which involves contributions from off-shell Higgs boson-mediated processes. This method relies on the assumption that the tree-level Higgs-top Yukawa coupling strength is the same for on-shell and off-shell Higgs boson production
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Special N-dimensional charged anti-de-Sitter black holes in [formula omitted] gravitational theory Phys. Lett. B (IF 4.3) Pub Date : 2025-01-20 G.G.L. Nashed
In this study, we introduce a toroidal solution for charged anti-de Sitter black holes in N dimensions within the framework of the quadratic form of f(Q) gravity, employing the coincident gauge condition [1]. We assume f(Q) to take the form f(Q)=Q+12αQ2−2Λ, where N≥4. These black hole solutions are characterized by flat or cylindrical horizons. A notable feature of these solutions is the presence of
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Rotation induced color confinement Phys. Lett. B (IF 4.3) Pub Date : 2025-01-17 Guojun Huang, Shile Chen, Yin Jiang, Jiaxing Zhao, Pengfei Zhuang
The rotation effect on the QCD properties is an open question. We study the dynamic gluon mass in a dense QCD matter, the rotation is introduced by taking a covariant transformation between the flat and curved spaces. The law of causality which restricts the rotation strength of the system is carefully considered in the calculation. We find that the rotation effect is not monotonous. Overall, it behaves
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Electric-charge-dependent directed flow splitting of produced quarks in Au+Au collisions Phys. Lett. B (IF 4.3) Pub Date : 2025-01-17 The STAR Collaboration, B.E. Aboona, J. Adam, G. Agakishiev, I. Aggarwal, M.M. Aggarwal, Z. Ahammed, A. Aitbaev, I. Alekseev, E. Alpatov, A. Aparin, S. Aslam, J. Atchison, G.S. Averichev, V. Bairathi, X. Bao, K. Barish, S. Behera, P. Bhagat, A. Bhasin, S. Bhatta, I.G. Bordyuzhin, J.D. Brandenburg, A.V. Brandin, C. Broodo, X.Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, J. Ceska, I.
We report directed flow (v1) of multistrange baryons (Ξ and Ω) and improved v1 data for K−, p¯, Λ¯ and ϕ in Au+Au collisions at sNN=27 and 200 GeV from the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). We focus on particles whose constituent quarks are not transported from the incoming nuclei but instead are produced in the collisions. At intermediate impact parameters, we examine
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FastEEC: Fast evaluation of N-point energy correlators Phys. Lett. B (IF 4.3) Pub Date : 2025-01-17 Ankita Budhraja, Wouter J. Waalewijn
Energy correlators characterize the asymptotic energy flow in scattering events produced at colliders, from which the microscopic physics of the scattering can be deduced. This view of collisions is akin to analyzes of the Cosmic Microwave Background, and a range of promising phenomenological applications of energy correlators have been identified, including the study of hadronization, the deadcone
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Unitarization of the one-loop graviton-graviton scattering amplitudes and study of the graviball Phys. Lett. B (IF 4.3) Pub Date : 2025-01-17 J.A. Oller, Marcela Peláez
From the graviton-graviton scattering amplitudes calculated perturbatively in quantum gravity to the one-loop order, we develop further a formalism that allows one to calculate infrared-finite partial-wave amplitudes fulfilling perturbative unitarity. As a result of this process a parameter dubbed lna emerges that separate between infrared and typical external momenta. The resulting partial-wave amplitudes
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Super-entropy bumblebee AdS black holes Phys. Lett. B (IF 4.3) Pub Date : 2025-01-17 B. Eslam Panah
Motivated by the effect of the bumblebee field on thermodynamic instability in (non)extended phase space, we study the thermodynamic instability for the bumblebee AdS black holes. For this purpose, first, we evaluate the effect of the bumblebee field (or Lorentz-violating parameter) on the event horizon for AdS black holes. Then, in non-extended phase space, we study the effect of the bumblebee field
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Below the Schwinger critical magnetic field value, quantum vacuum and gamma-ray bursts delay Phys. Lett. B (IF 4.3) Pub Date : 2025-01-16 Iver H. Brevik, Moshe M. Chaichian, Anca Tureanu
A magnetic field above the Schwinger critical value Bcrit=109 Tesla is much higher than any magnetic field known by now in the interstellar bulk except in the vicinity of observed magnetars having magnetic fields between 109 and 1011 Tesla. Above the critical magnetic field limit, calculated by Schwinger in the lowest order perturbation in quantum electrodynamics (QED), one reaches the threshold for
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Verifying the resonance schemes of unstable particles at lepton colliders Phys. Lett. B (IF 4.3) Pub Date : 2025-01-16 Shao-Feng Ge, Ui Min, Zhuoni Qian
We propose practical ways of differentiating the various (Breit-Wigner, theoretical, and energy-dependent) resonance schemes of unstable particles at lepton colliders. First, the energy-dependent scheme can be distinguished from the other two by fitting the Z lineshape scan and forward-backward asymmetries at LEP and future lepton colliders with the Z mass mZ, decay width ΓZ, and coupling strength
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Z′-mediated dark matter freeze-in at stronger coupling Phys. Lett. B (IF 4.3) Pub Date : 2025-01-16 Giorgio Arcadi, David Cabo-Almeida, Oleg Lebedev
We study freeze-in production of fermionic dark matter mediated by a Z′ gauge boson. In particular, we explore the regime of Boltzmann-suppressed production, when the Standard Model (SM) thermal bath temperature never exceeds the dark matter mass. The corresponding gauge coupling is then required to be significant, up to order one. As a result, this class of freeze-in models can be probed by the current
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Polarization of thermal dilepton radiation Phys. Lett. B (IF 4.3) Pub Date : 2025-01-16 Florian Seck, Bengt Friman, Tetyana Galatyuk, Hendrik van Hees, Ralf Rapp, Enrico Speranza, Jochen Wambach
The invariant mass spectra of dileptons radiated from the fireballs formed in high-energy heavy-ion collisions have been successfully used to investigate the properties of hot and dense QCD matter. Using a realistic model for the in-medium electromagnetic spectral function, we predict polarization observables and compare them to experiment. This allows, for the first time, independent tests of the
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A simple parametrisation of the pion form factor Phys. Lett. B (IF 4.3) Pub Date : 2025-01-16 Matthew Kirk, Bastian Kubis, Méril Reboud, Danny van Dyk
We discuss a novel and simple parametrisation of the pion vector form factor that transparently connects spacelike and timelike regions of the momentum transfer q2. Our parametrisation employs the framework of conformal mapping and respects the known analyticity properties of the form factor, accounting explicitly for the ρ(770)-meson pole. The parametrisation manifestly fulfils the normalisation condition
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A sensitivity target for an impactful Higgs boson self coupling measurement Phys. Lett. B (IF 4.3) Pub Date : 2025-01-16 Prudhvi N. Bhattiprolu, James D. Wells
We argue that a measurement of the Higgs boson self-coupling becomes particularly meaningful in a large and important class of theories when its sensitivity is within 40% of its Standard Model value. This constitutes a target for a future impactful experimental achievement. It is derived from recently obtained results of how extreme the differences can be between effective field theory operator coefficients
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Herrera complexity and shadows of spherically symmetric compact objects Phys. Lett. B (IF 4.3) Pub Date : 2025-01-16 Subhasis Nalui, Subhra Bhattacharya
In this work we investigate the effect of complexity factor on the formation of photon spheres for spherically symmetric compact objects. The complexity factor obtained from the orthogonal splitting of the Riemann curvature tensor connects the geometric attributes of a compact spherically symmetric gravitating object with its matter inhomogeneity and pressure anisotropy via a scalar term. The novelty
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Regular black holes from pure gravity Phys. Lett. B (IF 4.3) Pub Date : 2025-01-16 Pablo Bueno, Pablo A. Cano, Robie A. Hennigar
We show via an explicit construction how an infinite tower of higher-curvature corrections generically leads to a resolution of the Schwarzschild singularity in any spacetime dimension D≥5. The theories we consider have two key properties that ensure the results are general and robust: (1) they provide a basis for (vacuum) gravitational effective field theory in five and higher-dimensions, (2) for
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The gallium solar neutrino capture cross section revisited Phys. Lett. B (IF 4.3) Pub Date : 2025-01-16 W.C. Haxton, Evan Rule
Solar neutrino flux constraints from the legacy GALLEX/GNO and SAGE experiments continue to influence contemporary global analyses of neutrino properties. The constraints depend on the neutrino absorption cross sections for various solar sources. Following recent work updating the 51Cr and 37Ar neutrino source cross sections, we reevaluate the 71Ga solar neutrino cross sections, focusing on contributions
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Multi-messenger probes of asteroid mass primordial black holes: Superradiance spectroscopy, Hawking radiation, and microlensing Phys. Lett. B (IF 4.3) Pub Date : 2025-01-16 James B. Dent, Bhaskar Dutta, Tao Xu
Superradiance provides a unique opportunity for investigating dark sectors as well as primordial black holes, which themselves are candidates for dark matter over a wide mass range. Using axion-like particles as an example, we show that line signals emerging from a superradiated axion cloud combined with black hole Hawking radiation in extragalactic and galactic halos, along with microlensing observations
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Topology of black hole phase transition in JT gravity Phys. Lett. B (IF 4.3) Pub Date : 2025-01-16 Hemant Rathi, Dibakar Roychowdhury
We present a JT gravity setup coupled with U(1) and SU(2) Yang-Mills fields in two dimensions that reveals the onset of a small black hole to large black hole phase transition at finite chemical potential(s). We identify these black hole solutions as “topological defects” in the thermodynamic phase space and calculate the associated topological numbers following the standard procedure. We confirm the
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Multimessenger study of baryon-charged QCD matter in heavy-ion collisions Phys. Lett. B (IF 4.3) Pub Date : 2025-01-16 Lipei Du
Multimessenger studies of heavy-ion collisions, using hadrons and electromagnetic probes, can reveal the properties of the created QCD matter from different perspectives. This study calculates the thermal dilepton invariant mass spectra and thermal photon transverse momentum spectra in Au+Au collisions at low beam energies from the Beam Energy Scan program, using a (3+1)-dimensional multistage hydrodynamic
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Non-linear equation of motion for higher curvature semiclassical gravity Phys. Lett. B (IF 4.3) Pub Date : 2025-01-16 Naman Kumar
We derive the non-linear semiclassical equation of motion for a general diffeomorphism-invariant theory of gravity by leveraging the thermodynamic properties of closed causal horizons. Our work employs two complementary approaches. The first approach utilizes perturbative quantum gravity applied to a Rindler horizon. The result is then mapped to a stretched light cone, which can be understood as a
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Corrigendum to “A potential approach to the X(3872) thermal behavior” [Phys. Lett. B 854 (2024) 138760] Phys. Lett. B (IF 4.3) Pub Date : 2025-01-15 Néstor Armesto, Miguel Ángel Escobedo, Elena G. Ferreiro, Víctor López-Pardo
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Excited cluster states: A new source for proton number fluctuations in the high baryon density regime Phys. Lett. B (IF 4.3) Pub Date : 2025-01-14 Boris Tomášik, Marcus Bleicher
We calculate the contribution of the decay products of excited nuclear cluster states to the event-by-event fluctuations of protons in the energy range from sNN=2−5 GeV within the statistical model. We find that the inclusion of the excited nuclear clusters yields corrections to all cumulant ratios, ranging from 1% for ratio of second to first-order cumulant to 100% for the sixth to second order cumulant
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Exploring the possible two-proton radioactivity of 38,39Ti Phys. Lett. B (IF 4.3) Pub Date : 2025-01-14 B. Huang, F.P. Bai, J.G. Li, D.Q. Fang, S.M. Wang
Two-proton (2p) radioactivity represents a rare decay mode that has been experimentally observed only in a selected few nuclei. The exploration of 2p emission is crucial for elucidating the structure, mass, and nucleon-nucleon interactions within exotic proton-rich nuclei. 39Ti has long been postulated as a potential candidate for 2p emission; however, experimental investigations have yet to confirm
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On (dis)agreement between different methods of calculation of the imaginary part of the effective action in expanding space-times Phys. Lett. B (IF 4.3) Pub Date : 2025-01-14 E.T. Akhmedov, I.A. Belkovich, D.V. Diakonov, K.A. Kazarnovskii
We consider two approaches to calculate imaginary parts of effective actions in expanding space-times. While the first approach uses Bogolyubov coefficients, the second one uses the functional integral or the Feynman propagator. In eternally expanding space-times these two approaches give different answers for the imaginary parts. The origin of the difference can be traced to the presence if the wave-functionals
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Production of possible [formula omitted] molecular states in nucleon-antinucleon collision Phys. Lett. B (IF 4.3) Pub Date : 2025-01-14 Lin-Qing Song, Jun He
In this study, we investigate the production of potential ΣcΣ¯c molecular states in nucleon-antinucleon collisions using a quasipotential Bethe-Salpeter equation approach. Both isoscalar and isovector bound states with quantum numbers JPC=0−+ and 1−− are generated from the ΣcΣ¯c interaction, which is modeled through the exchange of light mesons. The cross-section for the scattering process pp¯→pp¯
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Quantum entanglement in nuclear fission Phys. Lett. B (IF 4.3) Pub Date : 2025-01-14 Yu Qiang, Junchen Pei, Kyle Godbey
Nuclear fission presents a unique example of quantum entanglement in strongly interacting many-body systems. A heavy nucleus can split into hundreds of combinations of two complementary fragments in the fission process. The entanglement of fragment wave functions is persistent even after separation and impacts the partition of particles and energies between fragments. Based on microscopic dynamical
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Curtright-Zachos supersymmetric deformations of the Virasoro algebra in quantum superspace and Bloch electron systems Phys. Lett. B (IF 4.3) Pub Date : 2025-01-13 Haru-Tada Sato
We introduce supersymmetric extensions of the Hom-Lie deformation of the Virasoro algebra, as realized in the GL(1,1) quantum superspace, for Bloch electron systems under Zeeman effects. The construction is achieved by defining generators through magnetic translations and spin matrix bases, specifically for the N=1 and N=2 supersymmetric deformed algebras. This approach reveals a structural parallel
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Disentangling single-particle and collective signatures in 12C(p,2p)11B reaction Phys. Lett. B (IF 4.3) Pub Date : 2025-01-10 E. Cravo, R. Crespo, A. Deltuva, D. Jurčiukonis
We calculate kinematically fully exclusive cross sections for the 12C(p,2p)11B reaction at Ep=98.7 MeV proton beam energy, leading to the low-lying states of 11B. We use rigorous three-particle scattering framework extended to include simultaneously and consistently both core excitation and single-particle-like excitations. This predicts significant cross sections for the transitions to the final 52−
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Bounding elastic photon-photon scattering at [formula omitted] MeV using a laser-plasma platform Phys. Lett. B (IF 4.3) Pub Date : 2025-01-10 R. Watt, B. Kettle, E. Gerstmayr, B. King, A. Alejo, S. Astbury, C. Baird, S. Bohlen, M. Campbell, C. Colgan, D. Dannheim, C. Gregory, H. Harsh, P. Hatfield, J. Hinojosa, D. Hollatz, Y. Katzir, J. Morton, C.D. Murphy, A. Nurnberg, J. Osterhoff, G. Pérez-Callejo, K. Põder, P.P. Rajeev, C. Roedel, F. Roeder, F.C. Salgado, G.M. Samarin, G. Sarri, A. Seidel, C. Spindloe, S. Steinke, M.J.V. Streeter, A
We report on a direct search for elastic photon-photon scattering using x-ray and γ photons from a laser-plasma based experiment. A γ photon beam produced by a laser wakefield accelerator provided a broadband γ spectrum extending to above ▪. These were collided with a dense x-ray field produced by the emission from a laser heated germanium foil at ▪, corresponding to an invariant mass of ▪. In these
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Analytic expressions for quasinormal modes of the general parametrized spherically symmetric black holes and the Hod's proposal Phys. Lett. B (IF 4.3) Pub Date : 2025-01-10 Alexey Dubinsky
Using an expansion in terms of the inverse multipole number and the WKB approach, we derive an analytic expression for the quasinormal frequencies of generic parametrized spherically symmetric and asymptotically flat black holes described by the Rezzolla-Zhidenko spacetime, in the regime when deviations from the Schwarzschild geometry are relatively small, i.e., when the coefficients of the parametrization
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Holographic ferromagnetic phase transitions with three typical nonlinear electrodynamics in Gauss-Bonnet gravity Phys. Lett. B (IF 4.3) Pub Date : 2025-01-10 Ruo-Tong Wei, Ya-Bo Wu, Te Huang, Jun-Ping Wang, Cheng-Yuan Zhang
At the probe limit, the effects of three typical nonlinear corrections of Born-Infeld electrodynamics (BINE), logarithmic Lagrangian (LNE) and exponential Lagrangian (ENE) on the holographic ferromagnetic model under the four-dimensional Gauss-Bonnet gravity background are studied by numerical calculation. For comparison, the Gauss-Bonnet parameter α is fixed in the article. In the absence of an external
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Corrigendum to “Search for a common baryon source in high-multiplicity pp collisions at the LHC” [Phys. Lett. B 811 (2020) 135849] Phys. Lett. B (IF 4.3) Pub Date : 2025-01-09 ALICE Collaboration, S. Acharya, D. Adamová, A. Adler, J. Adolfsson, M.M. Aggarwal, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S.U. Ahn, Z. Akbar, A. Akindinov, M. Al-Turany, S.N. Alam, D.S.D. Albuquerque, D. Aleksandrov, B. Alessandro, H.M. Alfanda, R. Alfaro Molina, B. Ali, Y. Ali, A. Alici, A. Alkin, J. Alme, T. Alt, L. Altenkamper, I. Altsybeev, M.N. Anaam, C. Andrei, D.
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Proposal to use LHC general-purpose detectors in “beam-dump” measurements for long-lived particles Phys. Lett. B (IF 4.3) Pub Date : 2025-01-09 Bhaskar Dutta, Doojin Kim, Hyunyong Kim
We propose a novel scheme for performing a beam-dump-like experiment with the general-purpose detectors (ATLAS and CMS) at the LHC. Collisions of high-energy protons result in jets containing a number of energetic hadrons and electromagnetic objects that are essentially “dumped” to hadronic and electromagnetic calorimeters, respectively, and induce the production of secondary hadrons, electrons, and
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Dynamical constraints on pseudo-gauge transformations Phys. Lett. B (IF 4.3) Pub Date : 2025-01-09 Zbigniew Drogosz, Wojciech Florkowski, Mykhailo Hontarenko, Radoslaw Ryblewski
Classical pseudo-gauge transformations are discussed in the context of hydrodynamic models of heavy-ion collisions. A decomposition of the pseudo-gauge transformation into Lorentz-invariant tensors is made, which allows for better interpretation of its physical consequences. For pseudo-gauge transformations connecting two symmetric energy-momentum tensors, we find that the super-potential Φλμν must