Thu·Feb 2, 2023Thursday·February 2, 2023

1. 01*

   Enhanced Schiff and magnetic quadrupole moments in deformed nuclei and their connection to the search for axion dark matter

   F. Dalton🇦🇺 · V. V. Flambaum🇦🇺 · A. J. Mansour🇦🇺

   Deformed nuclei possess enhanced moments violating time reversal invariance ($T$) and parity ($P$). Collective magnetic quadrupole moments (MQM) appear in nuclei with a quadrupole deformation (which have ordinary $T$,$P$-conserving collective electric quadrupole moments). Nuclei with an octupole deformation have a collective electric octupole moment, electric dipole moment (EDM), Schiff moment and MQM in the intrinsic frame which rotates with the nucleus. In a state with definite angular momentum in the laboratory frame, these moments are forbidden by $T$ and $P$ conservation, meaning their expectation values vanish due to nuclear rotation. However, nuclei with an octupole deformation have doublets of close opposite parity rotational states with the same spin, which are mixed by $T$,$P$-violating nuclear forces. This mixing polarises the orientation of the nuclear axis along the nuclear spin, and all moments existing in the intrinsic frame appear in the laboratory frame (provided the nuclear spin $I$ is sufficiently large to allow such a moment). Such a mechanism produces enhanced $T$,$P$-violating nuclear moments. This enhancement also takes place in nuclei with a soft octupole vibration mode. In this paper we present updated estimates for the enhanced Schiff moment in isotopes of Eu, Sm, Gd, Dy, Er, Fr, Rn, Ac, Ra, Th, Pa, U, Np and Pu in terms of the CP-violating $\pi$-meson--nucleon interaction constants ${\bar{g}}_0,{\bar{g}}_1$ and ${\bar{g}}_2$, the QCD parameter $\bar{\theta }$ and the quark chromo-EDMs. The implications of the enhanced $T$,$P$-violating moments to the search for axion dark matter in solid state experiments are also discussed, with potential alternative candidate compounds in which we may expect enhanced effects suggested.

   hep-phcond-mat.othernucl-thphysics.atom-phPRC(2023)·14 citations
2. 02*

   A Minimal Explanation of the Primordial Cosmological Perturbations

   Neil Turok🇨🇦 · Latham Boyle🇨🇦

   We outline a new explanation for the primordial density perturbations in cosmology. Dimension zero fields are a minimal addition to the Standard Model of particle physics: if the Higgs doublet is emergent, they cancel the vacuum energy and both Weyl anomalies without introducing any new particles. Furthermore, the cancellation explains why there are three generations of elementary particles, including RH neutrinos. We show how quantum zero point fluctuations of dimension zero fields seed nearly scale-invariant, Gaussian, adiabatic density perturbations. We calculate the amplitude of the primordial perturbations in terms of Standard Model couplings and find a result consistent with large scale observations. Subject to two key theoretical assumptions, both the amplitude and the tilt we calculate agree with the observed values, with no free parameters.

   hep-phastro-ph.COgr-qchep-th19 citations
3. 03*

   Neutrino phenomenology, W mass anomaly & muon $(g-2)$ in minimal type-III seesaw using $T^{\prime }$ modular symmetry

   Priya Mishra🇮🇳 · Mitesh Kumar Behera🇮🇳 · Rukmani Mohanta🇮🇳

   In this study, we attempt to introduce a model to illustrate neutrino phenomenology by incorporating two right-handed fermion triplet superfields, i.e., ${\Sigma }_{R_j}$, in the presence of the modular symmetry ${\Gamma }_3^{\prime }\simeq A_4^{\prime }$, a double cover of the $A_4$ modular symmetry. The motivation in utilizing double cover is, so far only even modular forms were considered for constructing modular invariant models, but, in this case, it is possible to extend the modular invariance approach to general integral weight modular forms, i.e., the odd weight modular forms. Hence, this type of amalgamation between $T^{\prime }$ modular symmetry and minimally extending the seesaw can correctly explain the neutrino phenomenology. Additionally, we have made an attempt to accommodate the most recent measurement of the $W$ boson mass, published by the CDF-II collaboration and shed some light on the recent results of muon $(g-2)$. Finally, we have discussed lepton flavor violation in order to establish a constraint on the mass of right-handed fermion.

   hep-phPRD(2023)·25 citations
4. 04*

   Energy hierarchies governing quarkonium dynamics in Heavy Ion Collisions

   Rishi Sharma🇮🇳 · Balbeer Singh🇮🇳

   In this paper, we critically examine hierarchies between energy scales that determine quarkonium dynamics in the quark gluon plasma. A particularly important role is played by the ratio of the binding energy of species ($E_b$) and the medium scales; temperature ($T$) and Debye mass ($m_D$). It is well known that if these ratios are much larger than one then the dominant process governing quarkonium evolution is dissociation by thermal gluons (gluo-dissociation). On the other hand, if this ratio is much smaller than one then quarkonium dynamics is dominated by screening and Landau damping of the exchanged gluons. Here we show that over most of the evolution, the scale hierarchies do not fall in either limit and one needs to use the full structure of the gluonic spectral function to follow the dynamics of the $Q\bar{Q}$ pair. This has a significant bearing when we follow the quantum dynamics of quarkonia in the medium. The inverse medium relaxation time is also $\sim T$ and if $E_b$ is comparable (or larger) in magnitude to $T$, the quantum evolution of $Q\bar{Q}$ is non-local in time within the Brownian approximation.

   hep-phPRC(2024)·6 citations
5. 05*

   Radiative corrections to neutron beta decay and (anti)neutrino-nucleon scattering from low-energy effective field theory

   Oleksandr Tomalak🇺🇸

   We study radiative corrections to neutron beta decay and low-energy (anti)neutrino-nucleon scattering within a top-down effective field theory approach. As it was recently shown, a few electromagnetic and electroweak low-energy coupling constants in heavy-baryon chiral perturbation theory are yet to be determined. Performing matching to the four-fermion effective field theory, we relate these low-energy constants to correlation functions of vector and axial-vector currents. Such relations allow us to explicitly clarify scheme dependence for radiative corrections to neutron decay and low-energy charged-current (anti)neutrino scattering, provide a robust prediction of leading in the electromagnetic coupling constant contributions, and achieve a clear separation between short-distance and long-distance contributions.

   hep-phnucl-exnucl-thFew Body Syst.(2023)·7 citations
6. 06*

   Axion-like Dark Matter Mediators

   Sophie Mutzel🇫🇷

   During the last decades, experimental advances have significantly constrained the standard electroweak-scale WIMP produced via thermal freeze-out, leading to a shift away from this standard paradigm. Here we explore the possibility of an axion-like particle (ALP), the pseudo-Goldstone boson of an approximate U(1) global symmetry spontaneously broken at a high scale $f_a$, acting as a mediator between the Standard Model (SM) particles and the dark matter (DM) particles. We focus on the case where the couplings are too small to allow for DM generation via freeze-out and the DM is thermally decoupled from the SM particles. However, alternative mechanisms like freeze-in and freeze-out from a decoupled dark sector can still reproduce the observed DM relic density. Having determined the region of parameter space for these scenarios, we then revisit experimental constraints on ALPs from electron beam dump experiments, astrophysics and rare B and K decays.

   hep-ph0 citations
7. 07*

   Generalising Axion-like particle as the curvaton: sourcing primordial density perturbation and non-Gaussianities

   Anish Ghoshal🇵🇱 · Abhishek Naskar🇮🇳

   We investigate the non-perturbatively generated axion-like particle (ALP) potential, involving fermions in the dark sector that couple to the ALP, in an early cosmological inflationary stage with the ALP being a spectator field. The potential here deviates from the standard cosine nature due to the presence of the two fermion masses $m_u$ and $m_d$ which couple to the ALP. The ALP is a spectator field during inflation but it starts to oscillate and dominates the energy density of the universe after inflation ends, thereby sourcing isocurvature perturbations, while standard curvature fluctuations form the inflaton are assumed to be sub-dominant. Subsequently the ALP decays converting the isocurvature perturbations to adiabatic perturbations thereby acting as the origin of the primordial density perturbations. We identify the parameter space involving the axion decay constant $f_a$, scale of confinement $\Lambda$, ALP mass $m$ and the masses of the fermions, $m_u$ and $m_d$ where it can satisfactorily behave as the curvaton and source the observed primordial density perturbation. We also predict local non-Gaussianity signals for bi-spectrum and tri-spectrum $f_{NL}$ and $g_{NL}$, as a function of the ratio $m_u/m_d$, which are within the allowed range in the latest Planck observations and are detectable with future observations. Particularly we observed that the value of $f_{NL}$ and $g_{NL}$ are dependent on the ratio of $m_u$ and $m_d$: $f_{NL}$ is more or less positive for all scenarios except $m_u=m_d$ and $g_{NL}$ is always positive irrespective of the ratio between $m_u$ and $m_d$. The results of our analysis in the limit $m_u=m_d$ resembles vanilla curvaton scenario while in the limit $m_u\gg m_d$ resembles pure axion cosine potential.

   hep-phastro-ph.COEPJC(2024)·5 citations
8. 08*

   Bell inequalities and quantum entanglement in weak gauge bosons production at the LHC and future colliders

   M. Fabbrichesi🇮🇹 · R. Floreanini🇮🇹 · E. Gabrielli🇮🇹 · L. Marzola🇪🇪

   Quantum entanglement of weak interaction gauge bosons produced at colliders can be explored by computing the corresponding polarization density matrix. To this end, we consider the Higgs boson decays $H\to W{W}^{\ast }$ and $H\to Z{Z}^{\ast }$, in which $W^{\ast }$ and $Z^{\ast }$ are off-shell states, and the $WW$, $WZ$ and $ZZ$ di-boson production in proton collisions. The polarization density matrix of the di-boson state is determined by the amplitude of the production process and can be experimentally reconstructed from the angular distribution of the momenta of the final states into which the gauge bosons decay. We show that a suitable instance of the Bell inequality is violated in $H\to Z{Z}^{\ast }$ to a degree that can be tested at the LHC with future data. The same Bell inequality is violated in the production of $WW$ and $ZZ$ boson pairs for invariant masses above 900 GeV and scattering angles close to $\pi /2$ in the center of mass frame. LHC data in this case are not sufficient to establish the violation of the Bell inequality. We also analyze the prospects for detecting Bell inequality violations in di-boson final states at future $e^{+}{e}^{-}$ and muon colliders. A further observable that provides a lower bound on the amount of polarization entanglement in the di-boson system is computed for each of the examined processes. The analytic expressions for the polarization density matrices are presented in full in an Appendix. We also provide the unitary matrices required in the optimization procedure necessary in testing the Bell inequalities.

   hep-phhep-exquant-phEPJC(2023)·127 citations
9. 09*

   Recurrent Axinovae and their Cosmological Constraints

   Patrick J. Fox🇺🇸 · Neal Weiner🇺🇸 · Huangyu Xiao🇺🇸

   Axion-like dark matter whose symmetry breaking occurs after the end of inflation predicts enhanced primordial density fluctuations at small scales. This leads to dense axion minihalos (or miniclusters) forming early in the history of the Universe. Condensation of axions in the minihalos leads to the formation and subsequent growth of axion stars at the cores of these halos. If, like the QCD axion, the axion-like particle has attractive self-interactions there is a maximal mass for these stars, above which the star rapidly shrinks and converts an $\mathcal{O}(1)$ fraction of its mass into unbound relativistic axions. This process would leave a similar (although in principle distinct) signature in cosmological observables as a decaying dark matter fraction, and thus is strongly constrained. We place new limits on the properties of axion-like particles that are independent of their non-gravitational couplings to the standard model.

   hep-phPRD(2023)·57 citations
10. 10*

    Massive three-loop form factors: anomaly contribution

    Matteo Fael🇨🇭 · Fabian Lange🇩🇪 · Kay Schönwald🇨🇭 · Matthias Steinhauser🇩🇪

    We compute three-loop corrections to the singlet form factors for massive quarks using a semi-analytic method which provides precise results over the whole kinematic range. Particular emphasis is put on the anomaly contribution originating from an external axial-vector current. We also discuss in detail the contribution for a pseudoscalar current and verify the chiral Ward identity to three-loop order. Explicit results are presented for the low- and high-energy regions and the expansions around threshold.

    hep-phPRD(2023)·35 citations
11. 11*

    Deciding on the anomalous magnetic moment of quarks in a framework of nonlocal NJL model

    Chowdhury Aminul Islam🇨🇳 · Mahammad Sabir Ali🇮🇳 · Mei Huang🇨🇳

    Anomalous magnetic moment (AMM) of quarks in presence of an external magnetic field has been explored using a nonlocal Nambu\textemdash Jona-Lasinio (NJL) model. Various strengths of AMM differing in orders of magnitude are used in the literature. We explore them in our nonlocal framework to decide on their strength. We checked the validity of using constant AMM of quarks and investigate two different temperature and magnetic field dependent forms. The forms are taken as the AMM being proportional to the i) meanfield and the ii) square of the meanfield. On comparison with the lattice data for both the condensate averages and differences, it turns out that the second choice is the most suitable one, in such an effective model scenario. In the process, we also keep track of the phase diagram in the $T-eB$ plane arising from our model calculation. The outcome is reasonable as far as the lattice QCD result is concerned.

    hep-phnucl-th5 citations
12. 12*

    Emergent Unparticles Dark Energy can restore cosmological concordance

    Ido Ben-Dayan🇮🇱 · Utkarsh Kumar🇮🇱

    Addressing the discrepancy between the late and early time measurements of the Hubble parameter, $H_0$, and the so-called $S_8$ parameter has been a challenge in precision cosmology. Several models are present to address these tensions, but very few of them can do so simultaneously. In the past, we have suggested Banks-Zaks/Unparticles as an emergent Dark Energy model and claimed that it can ameliorate the Hubble tension. In this work, we test this claim and perform a likelihood analysis of the model and its parameters are given current data and compare it to $\Lambda$CDM. The model offers a possible resolution of Hubble tension and softens the Large Scale Structure (LSS) tension without employing a scalar field or modifying the gravitational sector. Our analysis shows a higher value of $H_0\sim 70-73$ km/sec/Mpc and a slightly lower value of $S_8$ for various combinations of data sets. Consideration of Planck CMB data combined with the Pantheon sample and SH0ES priors lowers the $H_0$ and $S_8$ tension to $0.96\sigma$ and $0.94\sigma$ respectively with best-fit $\Delta {\chi }^2\approx -10$ restoring cosmological concordance. Significant improvement in the likelihood persists for other combinations of data sets as well. Evidence for the model is given by inferring one of its parameters to be $x_0\simeq -4.36$.

    ↳ astro-ph.COgr-qchep-phhep-thJCAP(2023)·27 citations
13. 13*

    CP Violation In Baryon Decays At LHCb

    Xinchen Dai🇨🇳 · Miroslav Saur🇨🇳 · Yiduo Shang🇨🇳 · Xueting Yang🇨🇳 · Yanxi Zhang🇨🇳

    Observation in astronomy suggests that our Universe contains an abundance of matter over antimatter, which can only be explained if the combined CP symmetry is violated. Studies of CP violation have driven the flavor physics with the aim of testing the Standard Model of particle physics and searching for physics beyond. CP violation is discovered in strange, beauty and charm meson systems, however no conclusive sign of CP violation in baryon decays has been observed yet. This review summarizes CP violation studies performed by the LHCb experiment in charmless decays and rare decays of beauty baryons and singly Cabibbo suppressed decays of charm baryons. A brief prospects for future LHCb measurements are also discussed.

    ↳ hep-exhep-phSymmetry(2023)·4 citations
14. 14*

    Phase space analysis of the bouncing universe with stringy effects

    Alfredo D. Millano (Catolica del Norte U.)🇨🇱 · Kimet Jusufi (State U., Tetova)🇲🇰 · Genly Leon (Catolica del Norte U. and DUT, Durban)🇨🇱

    We use the recently modified Friedmann equations obtained from string T-duality effects that encode the zero-point length (Phys. Lett. B 836 (2023), 137621) to study the phase space analyses of a bouncing early universe. An important implication of such stringy effects is that they can alleviate the initial singularity since the Raychaudhuri equation is modified. We investigate if the Universe can undergo an accelerated expansion phase for a specific domain of the equation of state parameter. The stringy effects are encoded in the parameter $\Gamma$, which depends not only on the zero-point length but also on the state parameter $\omega$. We construct two dynamical systems depending on whether $-1<\omega \le -1/3$ and $\omega \ge -1/3$, and we classify the equilibrium points of each system. Exact solutions and cosmological implications are discussed.

    ↳ gr-qchep-phhep-thmath-ph+1PLB(2023)·20 citations
15. 15*

    Search for Stochastic Gravitational-Wave Background from Massive Gravity in the NANOGrav 12.5-Year Data Set

    Yu-Mei Wu🇨🇳 · Zu-Cheng Chen🇨🇳 · Qing-Guo Huang🇨🇳

    Gravitational waves offer a new window to probe the nature of gravity, including answering if the mediating particle, graviton, has a non-zero mass or not. Pulsar timing arrays measure stochastic gravitational wave background (SGWB) at $\sim 1-100$~nanohertz. Recently, the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) collaboration reported an uncorrelated common-spectrum process in their 12.5-year data set with no substantial evidence that the process comes from the SGWB predicted by general relativity. In this work, we explore the possibility of an SGWB from massive gravity in the data set and find that a massless graviton is preferred because of the relatively larger Bayes factor. Without statistically significant evidence for dispersion-related correlations predicted by massive gravity, we place upper limits on the amplitude of the SGWB for graviton mass smaller than $10^{-23}$~eV as $A_{\mathrm{MG}}<3.21\times 10^{-15}$ at $95\%$ confidence level.

    ↳ gr-qcastro-ph.COastro-ph.GAastro-ph.HE+1PRD(2023)·49 citations
16. 16*

    Avoiding parameter fine-tuning in mass varying neutrino models of DE?

    Michael Maziashvili🇬🇪 · Vakhtang Tsintsabadze🇬🇪

    Coupled models of quintessence are usually introduced for avoiding or mitigating the parameter fine-tuning problem. At the same time, the coupled models should avoid the fine-tuning problem related to the initial conditions as quintessence models do. One more attractive feature of coupled models might be the explanation of the timescale at which the coincidence of DE and matter energy densities occur and the understanding of reason why after this the DE takes over. And finally, all these nice features should be unaffected by the quantum corrections of the potential. Having in mind these remarks, we shall focus our discussion on mass varying neutrino model of DE with inverse power-law potential to see how naturally does it work.

    ↳ astro-ph.COhep-phAstropart.Phys.(2024)·9 citations
17. 17*

    Yangian symmetry applied to Quantum chromodynamics

    R. Kirschner🇩🇪

    We review applications of Yangain symmetry to high-energy QCD phenomenology. Some basic facts about high-energy QCD are recalled, in particular the spinor-helicity form of scattering amplitudes, the scale evolution equations of deep-inelastic scattering structure functions and the high-energy asymptotics of scattering. As the working tool the Yangian symmetric correlators are introduced and constructed in the framework of the Yangian algebra of $g\ell (n)$ type. We present the application to the tree scattering amplitudes and their iterative relation, to the parton splitting amplitudes and the kernels of the scale evolution equations of structure functions and to the equations describing the high-energy asymptotics of scattering.

    ↳ hep-thhep-phmath.QAInt.J.Mod.Phys.A(2023)·3 citations
18. 18*

    Testing CPT Invariance by High-Precision Comparisons of Fundamental Properties of Protons and Antiprotons at BASE

    E. J. Wursten🇯🇵 · M. J. Borchert🇯🇵 · J. A. Devlin🇯🇵 · S. R. Erlewein🇯🇵 · M. Fleck🇯🇵 · J. A. Harrington🇯🇵 · J. I. Jäger🇨🇭 · B. M. Latacz🇯🇵 · P. Micke🇯🇵 · G. Umbrazunas🇯🇵 · F. Abbass🇩🇪 · M. Bohman🇯🇵 and 15 other authors

    The BASE collaboration at the Antiproton Decelerator facility of CERN compares the fundamental properties of protons and antiprotons using advanced Penning-trap systems. In previous measurement campaigns, we measured the magnetic moments of the proton and the antiproton, reaching (sub-)parts-in-a-billion fractional uncertainty. In the latest campaign, we have compared the proton and antiproton charge-to-mass ratios with a fractional uncertainty of 16 parts in a trillion. In this contribution, we give an overview of the measurement campaign, and detail how its results are used to constrain nine spin-independent coefficients of the Standard-Model Extension in the proton and electron sector.

    ↳ hep-exhep-ph2 citations
19. 19*

    Decay law of magnetic turbulence with helicity balanced by chiral fermions

    Axel Brandenburg🇸🇪 · Kohei Kamada🇯🇵 · Jennifer Schober🇨🇭

    In plasmas composed of massless electrically charged fermions, chirality can be interchanged with magnetic helicity while preserving the total chirality through the quantum chiral anomaly. The decay of turbulent energy in plasmas such as those in the early Universe and compact stars is usually controlled by certain conservation laws. In the case of zero total chirality, when the magnetic helicity density balances with the appropriately scaled chiral chemical potential to zero, the total chirality no longer determines the decay. We propose that in such a case, an adaptation to the Hosking integral, which is conserved in nonhelical magnetically dominated turbulence, controls the decay in turbulence with helicity balanced by chiral fermions. We show, using a high resolution numerical simulation, that this is indeed the case. The magnetic energy density decays and the correlation length increases with time just like in nonhelical turbulence with vanishing chiral chemical potential. But here, the magnetic helicity density is nearly maximum and shows a scaling with time $t$ proportional to $t^{-2/3}$. This is unrelated to the $t^{-2/3}$ decay of magnetic {\it energy} in fully helical magnetic turbulence. The modulus of the chiral chemical potential decays in the same fashion. This is much slower than the exponential decay previously expected in theories of asymmetric baryon production from the hypermagnetic helicity decay after axion inflation.

    ↳ physics.plasm-phastro-ph.COhep-phPRResearch(2023)·12 citations
20. 20*

    Anomaly-Induced Quenching of $g_A$ in Nuclear Matter and Impact on Search for Neutrinoless $\beta \beta$ Decay

    Mannque Rho🇫🇷

    How to disentangle the possible {\it genuine} quenching of $g_A$ caused by scale anomaly of QCD parameterized by the scale-symmetry-breaking quenching factor $q_{ssb}$ from nuclear correlation effects is described. This is done by matching the Fermi-liquid fixed point (FLFP) theory to the ``Extreme Single Particle (shell) Model" (acronym ESPM) in superallowed Gamow-Teller transitions in heavy doubly-magic shell nuclei. The recently experimentally observed indication for $(1-q_{ssb})\ne 0$ -- that one might identify as ``fundamental quenching ({\it FQ})" -- in certain experiments seems to be alarmingly significant. I present arguments how symmetries hidden in the matter-free vacuum can emerge and suppress such {\it FQ} in strong nuclear correlations. How to confirm or refute this observation is discussed in terms of the superallowed Gamow-Teller transition in the doubly-magic nucleus ${}^{100}$Sn and in the spectral shape in the multifold forbidden $\beta$ decay of ${}^{115}$In.

    ↳ nucl-thhep-phSymmetry(2023)·12 citations
21. 21*

    The RHIC Cold QCD Program

    Elke-Caroline Aschenauer🇺🇸 · Kenneth Barish🇺🇸 · Alexander Bazilevsky🇺🇸 · Xiaoxuan Chu🇺🇸 · James Drachenberg🇺🇸 · Oleg Eyser🇺🇸 · Renee Fatemi🇺🇸 · Carl Gagliardi🇺🇸 · Sanghwa Park🇺🇸 · Vincent Schoefer🇺🇸 · Ralf Seidl🇯🇵 · Scott Wissink🇺🇸 · Qinghua Xu🇨🇳 · Maria Zurek🇺🇸

    The RHIC Cold QCD program has produced a remarkable breadth of physics results and experimental techniques in the exploration of the fundamental structure of strongly interacting matter over the years. In this document, we present highlights of longitudinal and transverse spin physics to date and the 25 years of innovation in accelerator science from the RHIC Spin program. These measurements and techniques will be essential to fully realize the scientific missions of the Electron-Ion Collider (EIC) by providing a comprehensive set of measurements in hadronic collisions and laying the foundation for the design of the future EIC.

    ↳ nucl-exhep-exhep-phnucl-th23 citations
22. 22*

    Versatile Energy-Based Probabilistic Models for High Energy Physics

    Taoli Cheng🇨🇦 · Aaron Courville🇨🇦

    As a classical generative modeling approach, energy-based models have the natural advantage of flexibility in the form of the energy function. Recently, energy-based models have achieved great success in modeling high-dimensional data in computer vision and natural language processing. In line with these advancements, we build a multi-purpose energy-based probabilistic model for High Energy Physics events at the Large Hadron Collider. This framework builds on a powerful generative model and describes higher-order inter-particle interactions. It suits different encoding architectures and builds on implicit generation. As for applicative aspects, it can serve as a powerful parameterized event generator for physics simulation, a generic anomalous signal detector free from spurious correlations, and an augmented event classifier for particle identification.

    ↳ cs.LGhep-exhep-phstat.ML0 citations
23. 23*

    Viewpoint: Vector meson spin alignment by the strong force field

    Xin-Nian Wang🇺🇸

    Observation of unexpectedly large global spin alignment of $\varphi$ vector mesons in non-central heavy-ion collisions by STAR experiment may reveal the non-perturbative nature of quark interaction in hot matter through fluctuating strong force field with short correlation length.

    ↳ nucl-thhep-phNucl.Sci.Tech.(2023)·29 citations

* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.