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Dark Radiation Constraints on Heavy QCD Axions J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-24 David I. Dunsky, Lawrence J. Hall, Keisuke Harigaya
The naturalness problem of PQ symmetry motivates study of the heavy QCD axion, with masses ma > 1 MeV generated at scales above the QCD scale, and low values of the PQ symmetry breaking scale, fa. We compute the abundance of such axions in a model-independent way, assuming only that they freeze-out after reheating from inflation, and are not subsequently diluted by new physics. If these axions decay
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Bootstrapping AdS2 × S2 hypermultiplets: hidden four-dimensional conformal symmetry J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-24 Konstantinos C. Rigatos, Shaodong Zhou
We bootstrap the 4-point amplitude of \( \mathcal{N} \) = 2 hypermultiplets in AdS2 × S2 at tree-level and for arbitrary external weights. We hereby explicitly demonstrate the existence of a hidden four-dimensional conformal symmetry that was used as an assumption in previous studies to derive this result.
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Fusion category symmetry. Part I. Anomaly in-flow and gapped phases J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-24 Ryan Thorngren, Yifan Wang
We study generalized discrete symmetries of quantum field theories in 1+1D generated by topological defect lines with no inverse. In particular, we describe ’t Hooft anomalies and classify gapped phases stabilized by these symmetries, including new 1+1D topological phases. The algebra of these operators is not a group but rather is described by their fusion ring and crossing relations, captured algebraically
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Anisotropic dark energy from string compactifications J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-24 Diego Gallego, J. Bayron Orjuela-Quintana, César A. Valenzuela-Toledo
We explore the cosmological dynamics of a minimalistic yet generic string-inspired model for multifield dark energy. Adopting a supergravity four-dimensional viewpoint, we motivate the model’s structure arising from superstring compactifications involving a chiral superfield and a pure U(1) gauge sector. The chiral sector gives rise to a pair of scalar fields, such as the axio-dilaton, which are kinetically
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Lifting of superconformal descendants in the D1-D5 CFT J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-24 Marcel R.R. Hughes, Samir D. Mathur, Madhur Mehta
We consider D1-D5-P states in the untwisted sector of the D1-D5 orbifold CFT where we excite one copy of the seed CFT with a left-moving superconformal descendant. When the theory is deformed away from this region of moduli space these states can ‘lift’, despite being BPS at the orbifold point. For descendants formed from the supersymmetry \({G}_{\dot{A},-s}^{\alpha }\) and R-symmetry \({J}_{-n}^{a}\)
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Comments on the double cone wormhole J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-23 Yiming Chen, Victor Ivo, Juan Maldacena
In this paper we revisit the double cone wormhole introduced by Saad, Shenker and Stanford (SSS), which was shown to reproduce the ramp in the spectral form factor. As a first approximation we can say that this solution computes Tr[e−iKT], a trace of the “evolution” operator that generates Schwarzschild time translations on the two sided wormhole geometry. This point of view leads to a simple way to
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Mitigating topological freezing using out-of-equilibrium simulations J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-23 Claudio Bonanno, Alessandro Nada, Davide Vadacchino
Motivated by the recently-established connection between Jarzynski’s equality and the theoretical framework of Stochastic Normalizing Flows, we investigate a protocol relying on out-of-equilibrium lattice Monte Carlo simulations to mitigate the infamous computational problem of topological freezing. We test our proposal on 2d CPN−1 models and compare our results with those obtained adopting the Parallel
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Inflationary Krylov complexity J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-23 Tao Li, Lei-Hua Liu
In this work, we have systematically investigated the Krylov complexity of curvature perturbation for the modified dispersion relation in inflation, using the algorithm in closed system and open system. Since many quantum gravitational frameworks could lead to this kind of modified dispersion relation, our analysis could be applied to the string cosmology, loop gravity, e.t.c. Following the Lanczos
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Running of the top quark mass at NNLO in QCD J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-23 Matteo M. Defranchis, Jan Kieseler, Katerina Lipka, Javier Mazzitelli
The running of the top quark mass (mt) is probed at the next-to-next-to-leading order in quantum chromodynamics for the first time. The result is obtained by comparing calculations in the modified minimal subtraction (\(\overline{{\text{MS}} }\)) renormalisation scheme to the CMS result on differential measurement of the top quark-antiquark (\({\text{t}}\overline{{\text{t}} }\)) production cross section
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Carrollian Amplitudes from Strings J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-23 Stephan Stieberger, Tomasz R. Taylor, Bin Zhu
Carrollian holography is supposed to describe gravity in four-dimensional asymptotically flat space-time by the three-dimensional Carrollian CFT living at null infinity. We transform superstring scattering amplitudes into the correlation functions of primary fields of Carrollian CFT depending on the three-dimensional coordinates of the celestial sphere and a retarded time coordinate. The power series
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Combination of searches for heavy spin-1 resonances using 139 fb−1 of proton-proton collision data at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-19 G. Aad, E. Aakvaag, B. Abbott, 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, A. Ahmad, F. Ahmadov, W. S. Ahmed, S. Ahuja, X. Ai, G
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Prompt and nonprompt ψ(2S) production in pPb collisions at $$ \sqrt{s_{\textrm{NN}}} $$ = 8.16 TeV J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-19 R. Aaij, A. S. W. Abdelmotteleb, C. Abellan Beteta, F. Abudinén, T. Ackernley, B. Adeva, M. Adinolfi, P. Adlarson, H. Afsharnia, C. Agapopoulou, C. A. Aidala, Z. Ajaltouni, S. Akar, K. Akiba, P. Albicocco, J. Albrecht, F. Alessio, M. Alexander, A. Alfonso Albero, Z. Aliouche, P. Alvarez Cartelle, R. Amalric, S. Amato, J. L. Amey, Y. Amhis, L. An, L. Anderlini, M. Andersson, A. Andreianov, P. Andreola
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One-loop corrections to the double-real emission contribution to the zero-jettiness soft function at N3LO in QCD J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-19 Daniel Baranowski, Maximilian Delto, Kirill Melnikov, Andrey Pikelner, Chen-Yu Wang
We present an analytic calculation of the one-loop correction to the double-real emission contribution to the zero-jettiness soft function at N3LO in QCD, accounting for both gluon-gluon and quark-antiquark soft final-state partons. We explain all the relevant steps of the computation including the reduction of phase-space integrals to master integrals in the presence of Heaviside functions, and the
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Small kinetic mixing in string theory J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-19 Arthur Hebecker, Joerg Jaeckel, Ruben Kuespert
Kinetic mixing between gauge fields of different U(1) factors is a well-studied phenomenon in 4d EFT. In string compactifications with U(1)s from sequestered D-brane sectors, kinetic mixing becomes a key target for the UV prediction of a phenomenologically important EFT operator. Surprisingly, in many cases kinetic mixing is absent due to a non-trivial cancellation. In particular, D3-D3 kinetic mixing
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Holographic Weyl anomalies for 4d defects in 6d SCFTs J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-19 Pietro Capuozzo, John Estes, Brandon Robinson, Benjamin Suzzoni
In this note, we study 1/4- and 1/2-BPS co-dimension two superconformal defects in the 6d \( \mathcal{N} \) = (2, 0) AN−1 SCFT at large N using their holographic descriptions as solutions of 11d supergravity. In this regime, we are able to compute the defect contribution to the sphere entanglement entropy and the change in the stress-energy tensor one-point function due to the presence of the defect
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Love numbers and Love symmetries for p-form and gravitational perturbations of higher-dimensional spherically symmetric black holes J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-19 Panagiotis Charalambous
The static Love numbers of four-dimensional asymptotically flat, isolated, general-relativistic black holes are known to be identically vanishing. The Love symmetry proposal suggests that such vanishings are addressed by selection rules following from the emergence of an enhanced \(\mathrm{SL }\left(2,{\mathbb{R}}\right)\) (“Love”) symmetry in the near-zone region; more specifically, it is the fact
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Entanglement islands read perfect-tensor entanglement J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-19 Yi-Yu Lin, Jun Zhang, Jie-Chen Jin
In this paper, we make use of holographic Boundary Conformal Field Theory (BCFT) to simulate the black hole information problem in the semi-classical picture. We investigate the correlation between a portion of Hawking radiation and entanglement islands by the area of an entanglement wedge cross-section. Building on the understanding of the relationship between entanglement wedge cross-sections and
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Symmetry fractionalized (irrationalized) fusion rules and two domain-wall Verlinde formulae J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-19 Yu Zhao, Hongyu Wang, Yuting Hu, Yidun Wan
We investigate the composite systems consisting of topological orders separated by gapped domain walls. We derive a pair of domain-wall Verlinde formulae, that elucidate the connection between the braiding of interdomain excitations labeled by pairs of anyons in different domains and quasiparticles in the gapped domain wall with their respective fusion rules. Through explicit non-Abelian examples,
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A new method for calculating the soft anomalous dimension matrix for massive particle scattering J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-19 Johannes Henn, Calum Milloy, Kai Yan
The general structure of infrared divergences in the scattering of massive particles is captured by the soft anomalous dimension matrix. The latter can be computed from a correlation function of multiple Wilson lines. The state-of-the-art two-loop result has a tantalizingly simple structure that is not manifest in the calculations. We argue that the complexity in intermediate steps of the known calculations
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On the string landscape without hypermultiplets J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-19 Zihni Kaan Baykara, Yuta Hamada, Houri-Christina Tarazi, Cumrun Vafa
In this work we study interesting corners of the quantum gravity landscape with 8 supercharges pushing the boundaries of our current understanding. Calabi-Yau threefolds compactifications of F/M/type II theories to 6, 5 and 4 dimensions are the most prominent examples of this class, and these always lead to a universal hypermultiplet coming from the volume/string coupling constant. We find new examples
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Krylov complexity as an order parameter for deconfinement phase transitions at large N J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-19 Takanori Anegawa, Norihiro Iizuka, Mitsuhiro Nishida
Krylov complexity has been proposed as a diagnostic of chaos in non-integrable lattice and quantum mechanical systems, and if the system is chaotic, Krylov complexity grows exponentially with time. However, when Krylov complexity is applied to quantum field theories, even in free theory, it grows exponentially with time. This exponential growth in free theory is simply due to continuous momentum in
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Bethe/Gauge correspondence for AN spin chains with integrable boundaries J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-19 Ziwei Wang, Rui-Dong Zhu
We continue the survey initiated in [1] to explore the Bethe/Gauge correspondence between supersymmetric SO/Sp gauge theories in 2d/3d/4d and open spin chain with integrable boundaries. We collect the known Bethe ansatz equations of different types of spin chains with general boundaries that have been analyzed in the literature, and compare them with the vacua equations of the quiver gauge theories
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Domain walls in the Two-Higgs-Doublet Model and their charge and CP-violating interactions with Standard Model fermions J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-18 Mohamed Younes Sassi, Gudrid Moortgat-Pick
Discrete symmetries play an important role in several extensions of the Standard Model (SM) of particle physics. For instance, in order to avoid flavor changing neutral currents, a discrete Z2 symmetry is imposed on the Two-Higgs-Doublet Model (2HDM). This can lead to the formation of domain walls (DW) as the Z2 symmetry gets spontaneously broken during electroweak symmetry breaking in the early universe
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Rigid vacua with Brane Supersymmetry Breaking J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-18 Carlo Angelantonj, Cezar Condeescu, Emilian Dudas, Giorgio Leone
We construct new string vacua featuring Brane Supersymmetry Breaking, based on T4/ℤN orientifolds with O5+ planes and \( \overline{\textrm{D}5} \) branes. Differently from the original construction, in these vacua the cancellation of twisted R-R charges of D-branes and orientifold planes is achieved in a non-trivial way, and results in rigid configurations with few open-string moduli, which highly
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On the two-loop penguin contributions to the Anomalous Dimensions of four-quark operators J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-18 Pol Morell, Javier Virto
We revisit the Next-to-Leading Order (two-loop) contributions to the Anomalous Dimensions of ∆F = 1 four-quark operators in QCD. We devise a test for anomalous dimensions, that we regard as of general interest, and by means of which we detect a problem in the results available in the literature. Deconstructing the steps leading to the available result, we identify the source of the problem, which is
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Going beyond Top EFT J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-18 André Lessa, Verónica Sanz
We present a new way to interpret Top Standard Model measurements going beyond the SMEFT framework. Instead of the usual paradigm in Top EFT, where the main effects come from tails in momenta distributions, we propose an interpretation in terms of new physics which only shows up at loop-level. The effects of these new states, which can be lighter than required within the SMEFT, appear as distinctive
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Improving new physics searches with diffusion models for event observables and jet constituents J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-18 Debajyoti Sengupta, Matthew Leigh, John Andrew Raine, Samuel Klein, Tobias Golling
We introduce a new technique called Drapes to enhance the sensitivity in searches for new physics at the LHC. By training diffusion models on side-band data, we show how background templates for the signal region can be generated either directly from noise, or by partially applying the diffusion process to existing data. In the partial diffusion case, data can be drawn from side-band regions, with
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Fermionic shift symmetries in (anti) de Sitter space J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-18 James Bonifacio, Kurt Hinterbichler
We study extended shift symmetries that arise for fermionic fields on anti-de Sitter (AdS) space and de Sitter (dS) space for particular values of the mass relative to the curvature scale. We classify these symmetries for general mixed-symmetry fermionic fields in arbitrary dimension and describe how fields with these symmetries arise as the decoupled longitudinal modes of massive fermions as they
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Supersymmetry and the celestial Jacobi identity J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-18 Adam Ball, Marcus Spradlin, Akshay Yelleshpur Srikant, Anastasia Volovich
In this paper we study the simplifying effects of supersymmetry on celestial OPEs at both tree and loop level. We find at tree level that theories with unbroken supersymmetry around a stable vacuum have celestial soft current algebras satisfying the Jacobi identity, and we show at one loop that celestial OPEs in these theories have no double poles.
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Examining the sensitivity of FASERν to generalized neutrino interactions J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-18 F. J. Escrihuela, L. J. Flores, O. G. Miranda, Javier Rendón, R. Sánchez-Vélez
We investigate the sensitivity of the FASERν detector, a novel experimental setup at the LHC, to probe and constrain generalized neutrino interactions (GNI). Employing a comprehensive theoretical framework, we model the effects of generalized neutrino interactions on neutrino-nucleon deep inelastic scattering processes within the FASERν detector. By considering all the neutrino channels produced at
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Drell-Yan bounds on gapped continuum spectra J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-18 E. Arganda, A. Delgado, A. Martin, E. Megías, R.A. Morales, M. Quirós, T. Saxton
Theories with gapped continuum spectra have gotten some attention, either as pure 4D models like unparticles, or in 5D realizations as certain soft walls constructions. In this paper, we derive experimental bounds from Drell-Yan processes (pp → ℓ+ℓ−, pp → ℓ±ν) in a particular scenario where the electroweak bosons propagate in an extra dimension that produces a propagator with a continuum spectrum,
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Dark Matter searches with photons at the LHC J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-18 Subhojit Roy, Carlos E. M. Wagner
We unveil blind spot regions in dark matter (DM) direct detection (DMDD), for weakly interacting massive particles with a mass around a few hundred GeV that may reveal interesting photon signals at the LHC. We explore a scenario where the DM primarily originates from the singlet sector within the Z3-symmetric Next-to-Minimal Supersymmetric Standard Model (NMSSM). A novel DMDD spin-independent blind
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Erratum to: Coulomb gluons will generally destroy coherence J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-17 Jeffrey R. Forshaw, Jack Holguin
A correction to this paper has been published: https://doi.org/10.1007/JHEP12(2021)084
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Composite resonances at a 10 TeV muon collider J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-17 Da Liu, Lian-Tao Wang, Ke-Pan Xie
We investigate the reach for resonances of the composite Higgs models at a 10 TeV μ+μ− collider with up to 10 ab−1 luminosity. The strong dynamics sector is modeled by the minimal coset SO(5)/SO(4), where vector resonances are in (3, 1) of SO(4) and fermions are in (2, 2). Various production and decay channels are studied. For the spin-1 resonances, the projections are made based on the radiative return
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Effective dynamics of quantum fluctuations in field theory: with applications to cosmology J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-17 Ding Ding, Yu Zhao, Yidun Wan
We develop a novel framework for describing quantum fluctuations in field theory, with a focus on cosmological applications. Our method uniquely circumvents the use of operator/Hilbert-space formalism, instead relying on a systematic treatment of classical variables, quantum fluctuations, and an effective Hamiltonian. Our framework not only aligns with standard formalisms in flat and de Sitter spacetimes
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Gravitational radiations of Kerr black hole from warped symmetries J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-17 Jianfei Xu
The warped conformal symmetries have been found in the covariant phase space of a set of non-trivial diffeomorphism near the Kerr black hole horizon. In this paper, we consider the retarded Green’s function and the absorption probability for the scalar and higher spin perturbations on a generic non-extreme Kerr black hole background, and perform their holographic calculations in terms of the warped
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Mixed boundary conditions and double-trace like deformations in Celestial holography and Wedge-like holography J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-17 Machiko Fukada, Akihiro Miyata
According to the AdS/CFT dictionary, adding a relevant double-trace deformation f ∫ O2 to a holographic CFT action is dual to imposing mixed Neumann/Dirichlet boundary conditions for the field dual to O in AdS. We observed similar behaviour in codimension-two flat space holographies. We consider deformations of boundary conditions in flat spacetimes under flat space codimension-two holographies, Celestial
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An optimized basis for hadronic light-by-light scattering J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-17 Martin Hoferichter, Peter Stoffer, Maximilian Zillinger
We present a new basis for the hadronic light-by-light (HLbL) tensor that is optimized for the evaluation of narrow-resonance contributions to HLbL scattering in the anomalous magnetic moment of the muon. As main advantage, kinematic singularities are manifestly absent for pseudoscalar, scalar, and axial-vector states, while the remaining singularities for tensor resonances are minimized, even avoided
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Solvable limit of ETH matrix model for double-scaled SYK J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-17 Kazumi Okuyama, Takao Suyama
We study the two-matrix model for double-scaled SYK model, called ETH matrix model introduced by Jafferis et al. [arXiv:2209.02131]. If we set the parameters qA, qB of this model to zero, the potential of this two-matrix model is given by the Gaussian terms and the q-commutator squared interaction. We find that this model is solvable in the large N limit and we explicitly construct the planar one-
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Broad sterile neutrinos & the reactor/gallium tension J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-17 Hannah Banks, Kevin J. Kelly, Matthew McCullough, Tao Zhou
Significant evidence exists for the apparent disappearance of electron-type neutrinos in radioactive source experiments. Yet, interpreted within the standard ‘3+1 sterile neutrino scenario’, precision short-baseline measurements of electron antineutrinos from nuclear reactors strongly disagree with these results. Recently, it has been demonstrated that allowing for a finite wavepacket size for the
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A study on spontaneously translational symmetry breaking in the excited states of holographic superconductor J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-17 Qian Xiang, Li Zhao, Tie-Feng Fang, Yong-Qiang Wang
We revisit HHH model [1] and extend the ansatz of matter fields to being of depending on a spatial dimension except the holographic direction. Despite homogeneous solutions of ground and excited states, especially for the excited states, there also exists solutions where the translational invariance is broken. It is worth mentioning that no periodic sources are assigned to the matter fields, so the
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Examination of kt-factorization in a Yukawa theory J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-17 B. Guiot, A. van Hameren
We discuss the upper limit, kmax, of the transverse-momentum integration performed in the kt-factorization formula. Based on explicit calculations in the Yukawa theory and the study of seminal papers, we argue that kmax is equal to the factorization scale μF used to factorize the cross section into an off-shell hard coefficient and a universal factor. There is consequently a relation between kmax and
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Double parton distributions with flavor interference from lattice QCD J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-17 Daniel Reitinger, Christian Zimmermann, Markus Diehl, Andreas Schäfer
We study double parton distributions with flavor interference in the nucleon and compare them with previous results for the flavor diagonal case. We investigate both unpolarized and polarized partons. We compare our lattice results with those obtained from the simple description of the proton in terms of an SU(6) symmetric three-quark wave function and find that this description fails for both flavor
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Doubled Hilbert space in double-scaled SYK J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-17 Kazumi Okuyama
We consider matter correlators in the double-scaled SYK (DSSYK) model. It turns out that matter correlators have a simple expression in terms of the doubled Hilbert space \(\mathcal{H}\otimes \mathcal{H}\), where \(\mathcal{H}\) is the Fock space of q-deformed oscillator (also known as the chord Hilbert space). In this formalism, we find that the operator which counts the intersection of chords should
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A study of the SYK2 model with twisted boundary conditions J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-17 Jeff Murugan, Ruach Pillay Slayen, Hendrik J. R. Van Zyl
We study a version of the 2-body Sachdev-Ye-Kitaev (SYK2) model whose complex fermions exhibit twisted boundary conditions on the thermal circle. As we show, this is physically equivalent to coupling the fermions to a 1-dimensional external gauge field A(t). In the latter formulation, the gauge field itself can be thought of as arising from a radial symmetry reduction of a (2 + 1)-dimensional Chern-Simons
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No U(1) ‘electric-magnetic’ duality in Einstein gravity J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-17 Ricardo Monteiro
We revisit the question of whether classical general relativity obeys, beyond the linearised order, an analogue of the global U(1) electric-magnetic duality of Maxwell theory, with the Riemann tensor playing the role analogous to the field strength. Following contradictory claims in the literature, we present a simple gauge-invariant argument that the duality does not hold. The duality condition is
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Sensitivity of octant of θ23, CP violation and mass hierarchy in NOνA with multinucleon and detector effects J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-17 Paramita Deka, Kalpana Bora
In this work, we investigate how multinucleon enhancement and RPA (Random Phase Approximation) suppression can affect the measurement of three unknown neutrino oscillation parameters — the CP-violating phase δCP, the octant of the atmospheric mixing angle θ23, and the determination of the mass hierarchy, in the appearance channel of the NOνA experiment. We include the presence of the detector effect
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Gauged permutation invariant matrix quantum mechanics: path integrals J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-16 Denjoe O’Connor, Sanjaye Ramgoolam
We give a path integral construction of the quantum mechanical partition function for gauged finite groups. Our construction gives the quantization of a system of d, N × N matrices invariant under the adjoint action of the symmetric group SN. The approach is general to any discrete group. For a system of harmonic oscillators, i.e. for the non-interacting case, the partition function is given by the
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Dark showers from Z-dark Z′ mixing J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-16 Hsin-Chia Cheng, Xu-Hui Jiang, Lingfeng Li, Ennio Salvioni
We discuss dark shower signals at the LHC from a dark QCD sector, containing GeV-scale dark pions. The portal with the Standard Model is given by the mixing of the Z boson with a dark Z′ coupled to the dark quarks. Both mass and kinetic mixings are included, but the mass mixing is the essential ingredient, as it is the one mediating visible decays of the long-lived dark pions. We focus especially on
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Bilocal holography and locality in the bulk J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-16 Robert de Mello Koch, Garreth Kemp, Hendrik J. R. Van Zyl
Bilocal holography provides a constructive approach to the vector model/higher spin gravity duality. It has two ingredients: a change of field variables and a change of space time coordinates. The change of field variables ensures that the loop expansion parameter becomes \( \frac{1}{N} \). The change of coordinates solves the Clebsch-Gordan problem of moving from the tensor product basis (in which
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Thermodynamics of the Einstein-Maxwell system J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-16 Shoichiro Miyashita
At first glance, thermodynamic properties of gravity with asymptotically AdS conditions and those with box boundary conditions, where the spatial section of the boundary is a sphere of finite radius, appear similar. Both exhibit a similar phase structure and Hawking-Page phase transition. However, when we introduce a U(1) gauge field to the system, discrepancies in thermodynamic properties between
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Erratum to: The ABJM Amplituhedron J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-12 Song He, Yu-tin Huang, Chia-Kai Kuo
A correction to this paper has been published: https://doi.org/10.1007/JHEP09(2023)165
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On the oscillating electric dipole moment induced by axion-fermion couplings J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-12 Luca Di Luzio, Hector Gisbert, Philip Sørensen
It has been recently claimed that the axion coupling to fermions is responsible for an oscillating electric dipole moment (EDM) in the background of axion dark matter. In this work, we re-examine the derivation of this effect. Contrary to previous studies, we point out the physical relevance of an axion boundary term, which is crucial in restoring the axion shift symmetry and drastically affects the
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On the breakdown of eikonal approximation and survival of Reggeization in presence of dimension-5 Higgs-gluon coupling J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-12 Michael Fucilla, Maxim A. Nefedov, Alessandro Papa
We consider the one-loop effective vertex for the interaction of a gluon with a Reggeized gluon and a Higgs boson in the infinite-top-mass limit, which is described by a dimension-5 non-renormalizable operator. This vertex enters the calculation of differential cross sections for the forward inclusive production of a Higgs boson in high-energy proton-proton collisions, possibly in association with
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Relativistic single-electron wavepacket in quantum electromagnetic fields: quantum coherence, correlations, and the Unruh effect J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-12 Shih-Yuin Lin, Bei-Lok Hu
Conventional formulation of QED since the 50s works very well for stationary states and for scattering problems, but with newly arisen challenges from the 80s on, where real time evolution of particles in a nonequilibrium setting are required, and quantum features such as coherence, dissipation, correlation and entanglement in a system interacting with its quantum field environment are sought after
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Anomaly constraints for heterotic strings and supergravity in six dimensions J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-12 Ivano Basile, Giorgio Leone
The landscape of six-dimensional supergravities is dramatically constrained by the cancellation of gauge and gravitational anomalies, but the full extent of its implications has not been uncovered. We explore the cancellation of global anomalies of the Dai-Freed type in this setting with abelian and simply laced gauge groups, finding novel constraints. In particular, we exclude arbitrarily large abelian
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Improved Standard-Model prediction for KL → ℓ+ℓ− J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-12 Martin Hoferichter, Bai-Long Hoid, Jacobo Ruiz de Elvira
We present a comprehensive calculation of the KL → γ∗γ∗ form factor in dispersion theory, using input from the leptonic decays KL → ℓ+ℓ−γ, \({K}_{L}\to {{\ell}}_{1}^{+}{{\ell}}_{1}^{-}{{\ell}}_{2}^{+}{{\ell}}_{2}^{-}\), the hadronic mode KL → π+π−γ, the normalization KL → γγ, and the matching to asymptotic constraints. As key result we obtain an improved determination of the long-distance contribution
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QCD corrections to the Golden decay channel of the Higgs boson J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-12 Mandeep Kaur, Maguni Mahakhud, Ambresh Shivaji, Xiaoran Zhao
Future colliders aim to provide highly precise experimental measurements of the properties of the Higgs boson. In order to benefit from these precision machines, theoretical errors in the Higgs sector observables have to match at least the experimental uncertainties. The theoretical uncertainties in the Higgs sector observables can be reduced by including missing higher-order terms in their perturbative
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Using the effective weak mixing angle as an input parameter in SMEFT J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-12 Anke Biekötter, Benjamin D. Pecjak, Tommy Smith
We implement electroweak renormalisation schemes involving the effective weak mixing angle to NLO in Standard Model Effective Field Theory (SMEFT). After developing the necessary theoretical machinery, we analyse a select set of electroweak precision observables in such input schemes. An attractive feature is that large corrections from top-quark loops appearing in other schemes are absorbed into the
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Irreducible representations of the Poincaré group with reflections and two-fold Wigner degeneracy J. High Energy Phys. (IF 5.4) Pub Date : 2024-04-12 Dharam Vir Ahluwalia, G. B. de Gracia, Julio M. Hoff da Silva, Cheng-Yang Lee, B. M. Pimentel
Not all complete set of spinors can be used as expansion coefficients of a quantum field. In fact, Steven Weinberg established the uniqueness of Dirac spinors for this purpose provided: (a) one paid due attention to the multiplicative phases for each of the spinors, and (b) one paired these to creation and annihilation operators in a specific manner. This is implicit in his implementation of the rotational