High Energy & Particle · Physics & Astronomy
High Energy Physics - Phenomenology
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139 papers, from 8 September 2026 to 5 November 2026: 139 arXiv preprints.
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Quantum Popcorn: the shape of a phase transition bubble
A quantum tunneling event in field theory is usually depicted as the materialization of a spherical bubble of true vacuum.Color transparency effects on the deuteron spin observables in the hard $pd \to ppn$ reaction
The pionless breakup of a deuteron induced by 15 GeV/$c$ beam proton is considered theoretically in the kinematics where both outgoing protons are fast and the neutron is slow in the rest frame of…Charge Pumping Leptogenesis from the Symmetric Mass Generation Phase on a Four-Leg Ladder Lattice
Quantized charge pumping in quantum Hall systems is a bulk topological property, typically manifesting on gapless boundaries as spectral flow through chiral edge modes upon flux insertion.Heavy quarkonium dynamics beyond the binding energy over temperature expansion
We revisit the pNRQCD open-quantum-system description of bottomonium in a quark-gluon plasma, writing the full master equation in a spherical basis and establishing a framework for its numerical…Hidden Neutrino Active Galaxy Candidates: Prospects for Catalog and Stacking Searches with IceCube, IceCube-Gen2, and KM3NeT
In high-energy neutrino astrophysics, the identification of high-energy neutrino sources is a central goal, and jet-quiet active galactic nuclei (AGNs) have emerged as promising candidates.Quantum simulation of real-time Yukawa dynamics with qubits and qumodes
Real-time quantum simulation of field theories offers access to scattering and decay dynamics, circumventing the limitations of Euclidean lattice methods.Quantum Simulation of Hadronization: From String Breaking to Event Generation
High-energy collisions produce large numbers of quarks and gluons that are bound into hadrons by the confining interactions of quantum chromodynamics (QCD).Localized anomaly detection with a calorimeter normalizing flow
Normalizing flows trained as fast calorimeter simulators also give the likelihood of each shower, which can serve as an anomaly score.Certified Access: Test-Time Compute on Conservative Physics-Structured AI Memory
Test-time compute mechanisms, such as retries, confidence-based escalation and non-local routing, are conventionally deployed as black-box additions to trained models.Neutron Optical Constraints on Exotic Parity-odd Interactions between Neutrons and Nucleons
Many theories beyond the standard model of particle physics predict the existence of weakly-coupled exotic spin-dependent interactions between standard model particles.RAKI: High-Order Alternative Finite Differences for General Relativistic Magnetohydrodynamics
Binary neutron star (BNS) and black hole--neutron star mergers are among the most important multimessenger sources.Comments on $\bf{η'}$ nuclei and on the $Λ$ binding energy of the hypertriton
I briefly discuss two apparent puzzles: (i) is the observation of $η'$(958) bound states in $^{11}$C at GSI [1] compatible with a nearly vanishing real part of $η'N$ scattering length [2]? and (ii)…Combinatorial Residual Network: a decay-chain-aware classifier without explicit jet assignment
Final states with several jets from the decays of heavy particles pose a combinatorial problem, since the jets must be assigned, at least implicitly, to their parent particles.Stars Can Quench Superradiance Around Supermassive Black Holes
Light scalar fields trigger an instability around rotating black holes which drives the rapid growth of high-density bound states on astrophysically short timescales---a phenomenon known as black…Quantum Correlations Between Two Giant Dipole Resonances in Ultra-Peripheral Collisions
Mutual Coulomb dissociation in ultra-peripheral heavy-ion collisions is dominated by Giant Dipole Resonance (GDR) excitation, whose subsequent decays produce forward neutrons.Probing micron-range fifth forces with cold atoms in optical tweezer arrays
We propose a new method to search for fifth forces at micron scales, by resonantly exciting the motional state of ground-state-cooled atoms in optical tweezer arrays.Collinear Factorization and Evolution
The method of collinear factorization for high-energy inclusive cross sections has found wide use in the analysis of hadronic collisions.Quantum Observables of Nonperturbative Superradiant Scattering
Inelastic scattering from $N$ coherent spins, or any two-state system, scales as $N^2$, invalidating the Born approximation at large $N$ even at weak coupling.Improved nonflow control for multiparticle correlators and system-size-dependent evolution from OO to Pb--Pb collisions at the LHC
Multiparticle correlations of event-plane angles, known as symmetry plane correlators (SPCs), and correlations of anisotropic flow amplitudes of different harmonics, known as symmetric cumulants…What the Primary Lund Plane Omits: A Model-Stitching Diagnosis of a Jet-Tagger Representation Gap
Lund-plane and Particle Transformer (ParT) jet taggers can differ in performance because one representation is weaker, or because a weaker downstream computation reads an adequate one.