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Multiple measurements on the cosmic curvature using Gaussian process regression without calibration and a cosmological model Phys. Lett. B (IF 4.4) Pub Date : 2024-05-07 Xiaolong Gong, Yifei Xu, Tonghua Liu, Shuo Cao, Jianyong Jiang, Yalong Nan, Ruobin Ding, Jieci Wang
In this letter, we propose a novel cosmological model-independent method to determine cosmic curvature, combining the recent measurements of transverse and line-of-sight directions in the baryon acoustic oscillations (BAO) with cosmic chronometers (CC) datasets. Considering that the CC dataset is discrete and includes only 32 measurements, we apply Gaussian process (GP) regression to fit the CC dataset
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General form of the function [formula omitted] using cylindrically static spacetime Phys. Lett. B (IF 4.4) Pub Date : 2024-05-06 Gamal G.L. Nashed
We find an exact static solution in four dimensions to the field equations of the gravity by using a cylindrically static spacetime with two different ansatz, and . This solution is derived without imposing any conditions on . The black hole solution involves four constants: , , , and . Among these, is linked to the cosmological constant, to the black hole's mass, while and are responsible for the
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Thermodynamic phase transition rate for the third-order Lovelock black hole in diverse dimensions Phys. Lett. B (IF 4.4) Pub Date : 2024-05-06 Yu-Shan Wang, Zhen-Ming Xu, Bin Wu
The phase transition has always been a major focus in the study of black hole thermodynamics. This study employs the Kramer escape rate from stochastic processes to investigate the first-order phase transition strength between the large and small black hole states. The results indicate that the phase transition of the third-order Lovelock black holes exhibits significant asymmetric characteristics
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Infinite (continuous) spin particle in constant curvature space Phys. Lett. B (IF 4.4) Pub Date : 2024-05-06 I.L. Buchbinder, S.A. Fedoruk, A.P. Isaev, V.A. Krykhtin
We present a new particle model that generalize for constant curvature space an infinite spin particle in flat space. The model is described by commuting Weyl spinor additional coordinates. It proved that such a model is consistent only in external gravitational field corresponding to the constant curvature spaces. Full set of the first-class constraints in the de Sitter and anti-de Sitter spaces is
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Echoes of massless scalar field induced from hairy Schwarzschild black hole Phys. Lett. B (IF 4.4) Pub Date : 2024-05-06 Zhen-Hao Yang, Cheng Xu, Xiao-Mei Kuang, Bin Wang, Rui-Hong Yue
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Cosmological FLRW phase transitions and micro-structure under Kaniadakis statistics Phys. Lett. B (IF 4.4) Pub Date : 2024-05-06 Joaquín Housset, Joel F. Saavedra, Francisco Tello-Ortiz
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Dilaton in a multicritical 3+epsilon-D parity violating field theory Phys. Lett. B (IF 4.4) Pub Date : 2024-05-04 Gordon W. Semenoff, Riley A. Stewart
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Asymptotic tails of massive gravitons in light of pulsar timing array observations Phys. Lett. B (IF 4.4) Pub Date : 2024-05-03 R.A. Konoplya, A. Zhidenko
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Percolating cosmic string loops from evaporating primordial black holes Phys. Lett. B (IF 4.4) Pub Date : 2024-05-03 Ajit M. Srivastava
The Pulsar timing data from NANOGrav Collaboration has regenerated interest in the possibility of observing stochastic gravitational wave background arising from cosmic strings. Standard theory of formation of cosmic strings is based on a spontaneous symmetry breaking (SSB) phase transition in the early universe, with a string network forming via the so called Kibble mechanism. This string network
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Exploring unique quasinormal modes of a massive scalar field in brane-world scenarios Phys. Lett. B (IF 4.4) Pub Date : 2024-05-03 Antonina F. Zinhailo
We compute precise values of quasinormal modes of a massive scalar field in the background of the Schwarzschild-like brane-localised black holes. It is shown that the quasinormal spectrum of the massive field differs qualitatively from that previously known for other black hole models, due to the presence of two kinds of modes: those whose damping rate vanishes as the mass of the field increases up
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Constraints on the reheating phase after Higgs inflation in the hybrid metric-Palatini approach Phys. Lett. B (IF 4.4) Pub Date : 2024-05-03 Brahim Asfour, Aatifa Bargach, Yahya Ladghami, Ahmed Errahmani, Taoufik Ouali
In this paper, we study the post-inflationary era called reheating stage. For this purpose, we consider a model in which the inflaton is non-minimally coupled to the curvature within the hybrid metric-Palatini approach. Furthermore, to investigate the consistency of our results with the observational data, we relate reheating parameters to those of inflation model. By taking into consideration the
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A new Wolfenstein-like expansion of lepton flavor mixing towards understanding its fine structure Phys. Lett. B (IF 4.4) Pub Date : 2024-04-30 Zhi-zhong Xing
Taking the tri-bimaximal flavor mixing pattern as a particular basis, we propose a new way to expand the unitary Pontecorvo-Maki-Nakagawa-Sakata (PMNS) lepton flavor mixing matrix in powers of the magnitude of its smallest element . Such a Wolfenstein-like parametrization of allows us to easily describe the salient features and fine structures of flavor mixing and CP violation, both in vacuum and in
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Evolution of the nuclear spin-orbit splitting explored via the 32Si(d,p)33Si reaction using SOLARIS Phys. Lett. B (IF 4.4) Pub Date : 2024-04-29 J. Chen, B.P. Kay, C.R. Hoffman, T.L. Tang, I.A. Tolstukhin, D. Bazin, R.S. Lubna, Y. Ayyad, S. Beceiro-Novo, B.J. Coombes, S.J. Freeman, L.P. Gaffney, R. Garg, H. Jayatissa, A.N. Kuchera, P. MacGregor, A.J. Mitchell, W. Mittig, B. Monteagudo, A. Munoz-Ramos, C. Müller-Gatermann, F. Recchia, N. Rijal, C. Santamaria, M.Z. Serikow, D.K. Sharp, J. Smith, J.K. Stecenko, G.L. Wilson, A.H. Wuosmaa, C.X.
The spin-orbit splitting between neutron 1 orbitals at Si has been deduced using the single-neutron-adding (,) reaction in inverse kinematics with a beam of Si, a long-lived radioisotope. Reaction products were analyzed by the newly implemented SOLARIS spectrometer at the reaccelerated-beam facility at the National Superconducting Cyclotron Laboratory. The measurements show reasonable agreement with
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A mechanism relating the fermionic mass hierarchy to the flavor mixing Phys. Lett. B (IF 4.4) Pub Date : 2024-04-29 Jin-Lei Yang, Hai-Bin Zhang, Tai-Fu Feng
Considering the hierarchical structure of fermionic masses and the fermionic flavor mixing puzzles in the Standard Model, we propose to relate them by the see-saw mechanism, i.e. only the third generation of quarks and charged leptons achieves the masses at the tree level, the first two generations achieve masses through the mixings with the third generation, and the neutrinos achieve tiny Majorana
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Signatures of baryon junctions in semi-inclusive deep inelastic scattering Phys. Lett. B (IF 4.4) Pub Date : 2024-04-29 David Frenklakh, Dmitri E. Kharzeev, Wenliang Li
Local gauge invariance of the baryon wave function leads to the emergence of a baryon junction, where three (or , in gauge theory) string operators merge. The existence of baryon junction dramatically affects the dynamics of baryon stopping at high energies, and the corresponding predictions are supported by the recent data from STAR Collaboration at the Relativistic Heavy Ion Collider. Here we outline
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Corrigendum to “Pseudorapidity dependence of anisotropic flow and its decorrelations using long-range multiparticle correlations in Pb–Pb and Xe–Xe collisions” Phys. Lett. B (IF 4.4) Pub Date : 2024-04-28 ALICE Collaboration
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Nuclear Parton Distribution Functions After the First Decade of LHC Data Annu. Rev. Nucl. Part. Sci. (IF 12.4) Pub Date : 2024-04-26 Michael Klasen, Hannu Paukkunen
We present a review of the conceptual basis, current knowledge, and recent progress regarding global analysis of nuclear parton distribution functions (PDFs). After introducing the theoretical foundations and methodological approaches for the extraction of nuclear PDFs from experimental data, we discuss how different measurements in fixed-target and collider experiments provide increasingly precise
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R2 corrections on screening length Phys. Lett. B (IF 4.4) Pub Date : 2024-04-26 Zi-qiang Zhang, Xiangrong Zhu
We study finite-coupling corrections on the screening length of a heavy quark-antiquark () pair moving in strongly coupled Super Yang-Mills plasma. We performed the analysis by computing the Wilson loop in a general space with curvature-squared () corrections and the Gauss-Bonnet (GB) background, respectively. For the general case, it is shown that the screening length with corrections can be larger
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Exploring quantum entanglement in chiral symmetry partial restoration with 1+1 string model Phys. Lett. B (IF 4.4) Pub Date : 2024-04-26 Wei Kou, Xurong Chen
Within the confining color flux tube picture, we assess the color electric field generated by quark-antiquark pairs within the framework of the Schwinger model and estimate its impact on the chiral condensate. We observe differences in the distribution of the color flux tube generated by quark-antiquark pairs at different separation distances, leading to discrepancies in the partial restoration of
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Study of the 7Be(d,3He)6Li* reaction at 5 MeV/u Phys. Lett. B (IF 4.4) Pub Date : 2024-04-26 Sk M. Ali, D. Gupta, K. Kundalia, S. Maity, Swapan K. Saha, O. Tengblad, J.D. Ovejas, A. Perea, I. Martel, J. Cederkall, J. Park, A.M. Moro
The measurement of the Be(,He)Li* transfer cross section at 5 MeV/u is carried out. The population of the 2.186 MeV excited state of Li in this reaction channel is observed for the first time. The experimental angular distributions have been analyzed in the finite range DWBA and coupled-channel frameworks. The effect of the Be(,He)Li reaction on both the Li and Li abundances are investigated at the
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Stress tensors of 3d Carroll CFTs Phys. Lett. B (IF 4.4) Pub Date : 2024-04-26 Sudipta Dutta
We discuss kinematical features of conformal Carroll field theories in three dimensions (3d). Conformal extension of Carroll algebra is infinite dimensional even in 3d unlike its relativistic counterpart, and hence 3d Carroll CFTs share similarities with 2d CFT. We provide a construction for the conserved charges for Carrollian CFTs and an expression for stress tensor OPEs consistent with the algebra
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A novel algorithm to the shell model study of heavy deformed nuclei using the variation after projection approach Phys. Lett. B (IF 4.4) Pub Date : 2024-04-25 Zhan-Jiang Lian, Zao-Chun Gao, Yong-Shou Chen
We introduce an extension to the conventional variation after projection (VAP) method, in which wave functions of different spin states projected from a shared intrinsic wave function are first varied simultaneously. Then a second variation is carried out for each individual state starting from the obtained intrinsic wave function. This novel algorithm enables the efficient extraction of a rotational
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Generalized molecule-like structure in atomic nuclei Phys. Lett. B (IF 4.4) Pub Date : 2024-04-24 F.F. Zeng, K.K. Zheng, M.L. Liu, H.L. Wang
Starting from a field theory with universal interacting angular and distance coordinates to depict nuclear long-range correlations, we have derived a cubic Schrödinger equation for interacting virtual bosons, which are believed to dominate the generic evolution of nuclear structure from spherical multi-nucleon shell-model states to deformed collective rotational states. It is shown that two-soliton
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Vacua scan of 5d, [formula omitted] consistent truncations Phys. Lett. B (IF 4.4) Pub Date : 2024-04-24 Grégoire Josse, Francesco Merenda
In this letter we present a scan for new vacua within consistent truncations of eleven/ten-dimensional supergravity down to five dimensions that preserve supersymmetry, after their complete classification in . We first make explicit the link between the equations of exceptional Sasaki-Einstein backgrounds in and the standard BPS equations for 5d of . This derivation allows us to expedite a scan for
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Gravitational wave double copy of radiation from gluon shockwave collisions Phys. Lett. B (IF 4.4) Pub Date : 2024-04-24 Himanshu Raj, Raju Venugopalan
In , we showed that the gravitational wave spectrum from trans-Planckian shockwave scattering in Einstein gravity is determined by the gravitational Lipatov vertex expressed as the bilinear double copy where is the QCD Lipatov vertex and is the QED soft photon factor. We show here that this result can be directly obtained by careful application of the classical color-kinematic duality to the spectrum
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Flavor invariance of leptonic Yukawa terms in the 3HDM Phys. Lett. B (IF 4.4) Pub Date : 2024-04-24 Bartosz Dziewit, Joris Vergeest, Marek Zrałek
As an extension of the Standard Model (SM), the 3HDM (Three-Higgs-Doublet Model) defines additional relationships among the fermions. In the visible leptonic Yukawa sector of the 3HDM, we investigate the existence of flavor symmetries under discrete non-abelian groups up to order 1032. When the VEVs are not allowed to depart from their alignment imposed by the condition of minimal potential in the
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Erratum: “The Ξ(1620) and Ξ(1690) molecular states from S = −2 meson-baryon interaction up to next-to-leading order” [Phys. Lett. B 841 (2023) 137927] Phys. Lett. B (IF 4.4) Pub Date : 2024-04-24 A. Feijoo, V. Valcarce Cadenas, V.K. Magas
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Observation of abnormal suppression of f0(980) production in p–Pb collisions at [formula omitted] = 5.02 TeV Phys. Lett. B (IF 4.4) Pub Date : 2024-04-23 ALICE Collaboration, S. Acharya, D. Adamová, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S.U. Ahn, I. Ahuja, A. Akindinov, M. Al-Turany, D. Aleksandrov, B. Alessandro, H.M. Alfanda, R. Alfaro Molina, B. Ali, A. Alici, N. Alizadehvandchali, A. Alkin, J. Alme, G. Alocco, T. Alt, A.R. Altamura, I. Altsybeev, J.R. Alvarado, M.N. Anaam, C. Andrei, N. Andreou, A. Andronic, E. Andronov
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Holographic Gauss-Bonnet transport Phys. Lett. B (IF 4.4) Pub Date : 2024-04-23 Alex Buchel
We extend the computational framework of to analysis of shear and bulk viscosities in generic strongly coupled holographic Gauss-Bonnet gauge theories. The finite Gauss-Bonnet coupling constant encodes holographic plasma with non-equal central charges at the ultraviolet fixed point. In a simple model we discuss transport coefficients within the causality window of the theory.
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Long-sought isomer turns out to be the ground state of 76Cu Phys. Lett. B (IF 4.4) Pub Date : 2024-04-22 L. Canete, S. Giraud, A. Kankainen, B. Bastin, F. Nowacki, P. Ascher, T. Eronen, V. Girard Alcindor, A. Jokinen, A. Khanam, I.D. Moore, D. Nesterenko, F. De Oliveira, H. Penttilä, C. Petrone, I. Pohjalainen, A. De Roubin, V. Rubchenya, M. Vilen, J. Äystö
Isomers close to the doubly magic nucleus Ni (, ) provide essential information on the shell evolution and shape coexistence far from stability. The existence of a long-lived isomeric state in Cu has been debated for a long time. We have performed high-precision mass measurements of Cu with the JYFLTRAP double Penning trap mass spectrometer at the Ion Guide Isotope Separator On-Line facility and confirm
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Reanalysis of the top-quark pair production via the e+e− annihilation near the threshold region up to N3LO QCD corrections Phys. Lett. B (IF 4.4) Pub Date : 2024-04-22 Jiang Yan, Xing-Gang Wu, Zhi-Fei Wu, Jing-Hao Shan, Hua Zhou
In this paper, we present an improved analysis of the top-quark pair production via the process near the threshold region up to next-to-next-to-next-to-leading order (NLO) QCD corrections. Near the threshold region, the top-quark velocity tends to zero, leading to Coulomb singularity. To achieve a reasonable prediction in the threshold region, we reconstruct the analytical expression for the Coulomb-terms
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Constraining nucleon effective masses with flow and stopping observables from the SπRIT experiment Phys. Lett. B (IF 4.4) Pub Date : 2024-04-21 C.Y. Tsang, M. Kurata-Nishimura, M.B. Tsang, W.G. Lynch, Y.X. Zhang, J. Barney, J. Estee, G. Jhang, R. Wang, M. Kaneko, J.W. Lee, T. Isobe, T. Murakami, D.S. Ahn, L. Atar, T. Aumann, H. Baba, K. Boretzky, J. Brzychczyk, G. Cerizza, N. Chiga, N. Fukuda, I. Gasparic, B. Hong, A. Horvat, K. Ieki, N. Inabe, Y.J. Kim, T. Kobayashi, Y. Kondo, P. Lasko, H.S. Lee, Y. Leifels, J. Łukasik, J. Manfredi, A.B.
Properties of the nuclear equation of state (EoS) can be probed by measuring the dynamical properties of nucleus-nucleus collisions. In this study, we present the directed flow (), elliptic flow () and stopping (VarXZ) measured in fixed target Sn + Sn collisions at ▪ with the SRIT Time Projection Chamber. We perform Bayesian analyses in which EoS parameters are varied simultaneously within the Improved
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Ultracentral heavy ion collisions, transverse momentum and the equation of state Phys. Lett. B (IF 4.4) Pub Date : 2024-04-21 Govert Nijs, Wilke van der Schee
Ultracentral heavy ion collisions due to their exceptionally large multiplicity probe an interesting regime of quark-gluon plasma where the size is (mostly) fixed and fluctuations in the initial condition dominate. Spurred by the recent measurement of the CMS collaboration we investigate the driving factors of the increase of transverse momentum, including a complete analysis of the influence of the
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A direct probe of Λ potential in nuclear medium Phys. Lett. B (IF 4.4) Pub Date : 2024-04-21 Gao-Chan Yong
Using the Liège intranuclear-cascade model together with the ablation model ABLA, an investigation is conducted into the effects of Λ potential in Λ-nucleus and Λ-hypernucleus-nucleus collisions across various beam energies. The findings show that the angle and transverse-momentum distributions of scattered Λ hyperon, the scattering cross section of the Λ hyperon in Λ-nucleus collisions as well as
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Correlation of the hyperon potential stiffness with hyperon constituents in neutron stars and heavy-ion collisions Phys. Lett. B (IF 4.4) Pub Date : 2024-04-21 Si-Na Wei, Zhao-Qing Feng, Wei-Zhou Jiang
The breaking of SU(6) symmetry to a more general flavor SU(3) symmetry could serve as a potential explanation for the “hyperon puzzle” of neutron stars by adjusting the hyperon potentials. Specifically, when the soft relativistic mean-field (RMF) Λ hyperon potentials fall within the domains of chiral SU(3) interactions NLO13 with two-body forces, the maximum mass of neutron stars is expected to be
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Superallowed Nuclear Beta Decays and Precision Tests of the Standard Model Annu. Rev. Nucl. Part. Sci. (IF 12.4) Pub Date : 2024-04-18 Mikhail Gorchtein, Chien-Yeah Seng
For many decades, the main source of information on the top-left corner element of the Cabibbo–Kobayashi–Maskawa quark mixing matrix, V ud , was superallowed nuclear β decays with an impressive 0.01% precision. This precision, apart from experimental data, relies on theoretical calculations in which nuclear structure–dependent effects and uncertainties play a prime role. This review is dedicated to
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Charge-conjugation asymmetry and molecular content: The [formula omitted] in matter Phys. Lett. B (IF 4.4) Pub Date : 2024-04-18 V. Montesinos, M. Albaladejo, J. Nieves, L. Tolos
We analyze the modifications that a dense nuclear medium induces in the and . In the vacuum, we consider them as isoscalar and ▪-wave bound states, which are dynamically generated from effective interactions that lead to different Weinberg compositeness scenarios. Matter effects are incorporated through the two-meson loop functions, taking into account the self energies that the , ▪, , and ▪ develop
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Two-point closed string amplitudes in the BRST formalism Phys. Lett. B (IF 4.4) Pub Date : 2024-04-18 Isao Kishimoto, Shigenori Seki, Tomohiko Takahashi
Two-point tree-level amplitudes in bosonic closed string theory are described by a correlation function within the BRST formalism, which respects manifest Lorentz and conformal invariance. In the derivation of the two-point amplitudes, we use the mostly BRST exact operator, which has been introduced for two-point open string amplitudes, and a closed string vertex with ghost number three, which has
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Rotating SU(2) gluon matter and deconfinement at finite temperature Phys. Lett. B (IF 4.4) Pub Date : 2024-04-18 Yin Jiang
In this work a non-abelian gauge theory is reformulated in a rotating frame. With this new formalism, the influence of the background rotation on the color deconfinement transition for a pure SU(2) gluon system has been studied. The KvBLL caloron, which is a color neutral and topologically nontrivial solution of Yang-Mills equation at finite temperature, is reexamined under rotation and adopted as
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First investigation on the isomeric ratio in multinucleon transfer reactions: Entrance channel effects on the spin distribution Phys. Lett. B (IF 4.4) Pub Date : 2024-04-18 D. Kumar, T. Dickel, A. Zadvornaya, O. Beliuskina, A. Kankainen, P. Constantin, S. Purushothaman, A. Spataru, M. Stryjczyk, L. Al Ayoubi, M. Brunet, L. Canete, C. Delafosse, R.P. de Groote, A. de Roubin, T. Eronen, Z. Ge, W. Gins, C. Hornung, M. Hukkanen, A. Illana, A. Jokinen, D. Kahl, B. Kindler, B. Lommel, I. Mardor, I.D. Moore, D.A. Nesterenko, D. Nichita, S. Nikas, A. Ortiz-Cortes, H. Penttilä
The multinucleon transfer (MNT) reaction approach was successfully employed for the first time to measure the isomeric ratios (IRs) of Po isomer (25/2) and its ground state (9/2) at the IGISOL facility using a 945 MeV Xe beam impinged on Bi and Pb targets. The dominant production of isomers compared to the corresponding ground states was consistently revealed in the -decay spectra. Deduced IR of Po
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Ideal gas thermodynamics with an invariant energy scale Phys. Lett. B (IF 4.4) Pub Date : 2024-04-18 Sudipta Das
A viable approach towards Quantum Gravity is the Doubly Special Relativity (DSR) framework in which an observer-independent finite energy upper bound (or a finite smallest length scale) appears quite naturally. In this work, we have studied the thermodynamic properties of an ideal gas in a specific DSR framework, known as the Magueijo-Smolin (MS) Model. We use the fact that DSR can be considered as
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Gravitationally modulated quantum correlations: Discriminating classical and quantum models of ultra-compact objects with Bell nonlocality Phys. Lett. B (IF 4.4) Pub Date : 2024-04-18 Luciano Petruzziello, Fabrizio Illuminati
We investigate the relation between quantum nonlocality and gravity at the astrophysical scale, both in the classical and quantum regimes. Considering a gedanken experiment involving particle pairs orbiting in the strong gravitational field of ultra-compact objects, we find that the violation of Bell inequality acquires an angular modulation factor that strongly depends on the nature of the gravitational
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Reissner-Nordström black holes surrounded by perfect fluid dark matter: Testing the viability of weak gravity conjecture and weak cosmic censorship conjecture simultaneously Phys. Lett. B (IF 4.4) Pub Date : 2024-04-18 Jafar Sadeghi, Saeed Noori Gashti
A possible violation of the weak gravity conjecture (WGC) by cosmic censorship is one of the major challenges in the field of general relativity. The cosmic censorship is a fundamental principle that ensures the consistency of the theory of gravity. According to this principle, a charged black hole in four dimensions cannot violate the weak cosmic censorship conjecture (WCCC) under normal conditions
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More holographic M5 branes in AdS7 × S4 Phys. Lett. B (IF 4.4) Pub Date : 2024-04-18 Varun Gupta
We study classical M5 brane solutions in the probe limit in the spacetime geometry with worldvolume 3-form flux. These solutions describe the holography of codimension-4 defects in the 6d boundary dual supersymmetric gauge theories. Starting from some half-BPS solutions which follow stricter BPS conditions, we find a general -BPS solution. We show how some of the M5 brane solutions here may be related
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More fermionic supersymmetric Wilson loops in four dimensions Phys. Lett. B (IF 4.4) Pub Date : 2024-04-18 Hao Ouyang, Jun-Bao Wu
We construct supersymmetric fermionic Wilson loops along general curves in four-dimensional super Yang-Mills theory and along general planar curves in superconformal quiver theory. These loops are generalizations of the Zarembo loops and are cohomologically equivalent to them. In super Yang-Mills theory, we compute their expectation values and verify the cohomological equivalence relation up to the
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Probing the electromagnetic properties of the neutrinos at future lepton colliders Phys. Lett. B (IF 4.4) Pub Date : 2024-04-18 H. Denizli, A. Senol, M. Köksal
In this study, we explore the non-standard couplings parametrized by dimension-seven operators via process at the FCC-ee/CEPC and process at the Muon Colliders. For the detailed Monte Carlo simulation, all signal and relevant background events are produced within the framework of Madgraph where non-standard couplings are implemented. After passing through Pythia for parton showering and hadronization
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Hints of the JPC = 0−− and 1−−[formula omitted] molecules in the J/ψ → ϕηη′ decay Phys. Lett. B (IF 4.4) Pub Date : 2024-04-18 Xiang-Kun Dong, Teng Ji, Feng-Kun Guo, Ulf-G. Meißner, Bing-Song Zou
The primary objective of this study is to investigate hadronic molecules of using a one-boson-exchange model, which incorporates exchanges of vector and pseudoscalar mesons in the -channel, as well as the pion exchange in the -channel. Additionally, careful consideration is given to the three-body effects resulting from the on-shell pion originating from . Then the BESIII data of the process is fitted
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Testing the cosmological Poisson equation in a model-independent way Phys. Lett. B (IF 4.4) Pub Date : 2024-04-16 Ziyang Zheng, Ziad Sakr, Luca Amendola
We show how one can test the cosmological Poisson equation by requiring only the validity of three main assumptions: the energy-momentum conservation equations of matter, the equivalence principle, and the cosmological principle. We first point out that one can only measure the combination , where quantifies the deviation of the Poisson equation from the standard one and is the fraction of matter density
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Persistence of the pattern in the interior of 5d moduli spaces Phys. Lett. B (IF 4.4) Pub Date : 2024-04-16 Tom Rudelius
Castellano, Ruiz, and Valenzuela recently observed a remarkable “pattern” in infinite-distance limits of moduli spaces in quantum gravity, which relates the field space variation of the mass of the lightest tower of particles to the field space variation of the species scale. In this work, we show how a version of this pattern can be proven to hold for BPS particles and strings throughout the vector
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Two-dimensional Lorentz-violating Casimir effect Phys. Lett. B (IF 4.4) Pub Date : 2024-04-16 K.E.L. de Farias, M.A. Anacleto, F.A. Brito, E. Passos, Herondy Mota
In this study, we consider the four-dimensional Maxwell electrodynamics extended with CPT-even Myers-Pospelov Lorentz-violating dimension-six operators to investigate the associated two-dimensional properties in the context of quantum vacuum fluctuation effects, namely, the Casimir effect. Upon projecting out the 4D theory down to a 2D theory we obtain analogs of these operators leading to a modified
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One-loop quantum stress-energy tensor for the kink and sine-Gordon solitons Phys. Lett. B (IF 4.4) Pub Date : 2024-04-16 N. Graham, H. Weigel
We compute the renormalized one-loop quantum corrections to the energy density and pressure for solitons in the dimensional scalar sine-Gordon and kink models. We show how precise implementation of counterterms in dimensional regularization resolves previously identified discrepancies between the integral of and the known correction to the total energy.
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A truncated primordial power spectrum and its impact on B-mode polarization Phys. Lett. B (IF 4.4) Pub Date : 2024-04-15 Jingwei Liu, Fulvio Melia
The absence of large-angle correlations in the temperature of the cosmic microwave background (CMB), confirmed by three independent satellite missions, creates significant tension with the standard model of cosmology. Previous work has shown, however, that a truncation, , of the primordial power spectrum comprehensively resolves the anomaly and the missing power at (the low multipoles). Since this
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An Experimental Life Annu. Rev. Nucl. Part. Sci. (IF 12.4) Pub Date : 2024-04-12 Paul D. Grannis
Over the past 60 years, particle physics has seen the maturation of its Standard Model and an enormous change in the character of the experiments that have defined it. I have had the good fortune to participate in and help shape this evolution.
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Superconformal two-point functions of the Nahm pole defect in [formula omitted] super-Yang-Mills theory Phys. Lett. B (IF 4.4) Pub Date : 2024-04-12 J. Baerman, A. Chalabi, C. Kristjansen
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Transverse momentum weighted Sivers asymmetries in SIDIS and Drell-Yan processes at COMPASS Phys. Lett. B (IF 4.4) Pub Date : 2024-04-12 Shi-Chen Xue, Shuailiang Yang, Xiaoyu Wang, De-Min Li, Zhun Lu
We investigate the transverse momentum weighted Sivers asymmetries in the processes with transversely polarized proton target, including the weighted asymmetry in charged hadron production in semi-inclusive deeply inelastic scattering (SIDIS) and the weighted asymmetry in Drell-Yan process. These asymmetries can be expressed as the product of the transverse-moments of the transverse momentum dependent
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CP violation in lepton-number-conserving processes through heavy Majorana neutrinos at future lepton colliders Phys. Lett. B (IF 4.4) Pub Date : 2024-04-12 Zhe Wang, Xing-Hua Yang, Xin-Yi Zhang
Small neutrino masses confirmed in the neutrino oscillation experiments indicate the need for new physics beyond the standard model. Seesaw mechanism is an interesting way to extend the standard model for explaining the neutrino masses. In a low-scale type-I seesaw mechanism, the tiny masses of neutrinos can be explained by heavy Majorana neutrino masses. Heavy Majorana neutrinos can lead to lepton-number-violating
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Predictions from scoto-seesaw with A4 modular symmetry Phys. Lett. B (IF 4.4) Pub Date : 2024-04-12 Ranjeet Kumar, Priya Mishra, Mitesh Kumar Behera, Rukmani Mohanta, Rahul Srivastava
This paper's novelty lies in introducing a hybrid scoto-seesaw model rooted in discrete modular symmetry leading to several interesting phenomenological implications. The scoto-seesaw framework leads to generation of one mass square difference ) using the type-I seesaw mechanism at the tree level. Additionally, the scotogenic contribution is vital in obtaining the other mass square difference () at
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Asymptotic ultraviolet-safe unification of gauge and Yukawa couplings: The exceptional case Phys. Lett. B (IF 4.4) Pub Date : 2024-04-12 Giacomo Cacciapaglia, Aldo Deandrea, Roman Pasechnik, Zhi-Wei Wang
The ultimate dream of unification models consists in combining both gauge and Yukawa couplings into one unified coupling. This is achieved by using a supersymmetric exceptional gauge symmetry together with asymptotic unification in compact five-dimensional space-time. The ultraviolet fixed point requires fermion generations: one in the bulk, and the two light ones localised on the boundary in order
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Search for the lepton flavor violating τ → 3μ decay in proton-proton collisions at [formula omitted] Phys. Lett. B (IF 4.4) Pub Date : 2024-04-10 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, E.S. Bols, J. D'Hondt, S. Dansana, A. De Moor, M. Delcourt, H. El
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Pulsar timing arrays and primordial black holes from a supercooled phase transition Phys. Lett. B (IF 4.4) Pub Date : 2024-04-10 Alberto Salvio
An explicit realistic model featuring a supercooled phase transition, which allows us to explain the background of gravitational waves recently detected by pulsar timing arrays, is constructed. In this model the phase transition corresponds to radiative symmetry breaking (and mass generation) in a dark sector featuring a dark photon associated with the broken symmetry. The completion of the transition