Clay weekly context brief for the High Energy Physics category (ISO week 2026-W40). Clay tracks publications from the High Energy Physics feed list. Below are recent items from this category, each with its source and a short description of what the publication covers when one is available in the source feed. Recent publications: 1. Stability of hybrid stars via catastrophe theory Source: hep-ph (High Energy Physics - Phenomenology) Link: https://arxiv.org/abs/2609.28710 We discuss the possible topologies of the mass-radius relation for hybrid stars in light of catastrophe theory. 2. $\Delta$ resonance contributions to QED radiative corrections in neutron and inverse beta decay Source: hep-lat (High Energy Physics - Lattice) Link: https://arxiv.org/abs/2608.22845 We incorporate the $\Delta(1232)$ resonance into pion-induced QED radiative corrections to neutron decay and inverse beta decay (IBD). 3. Observation of partonic flow in proton-proton and proton-nucleus collisions Source: hep-ex (High Energy Physics - Experiment) Link: https://arxiv.org/abs/2411.09323 Quantum Chromodynamics predicts a phase transition from hadronic matter to quark$-$gluon plasma (QGP) at high temperatures and energy densities, where quarks and gluons (partons) are no longer confined within hadrons. 4. Classical soft theorems meet the post-Newtonian expansion Source: gr-qc (General Relativity and Quantum Cosmology) Link: https://arxiv.org/abs/2609.29895 Classical soft theorems govern the non-analytic structure of electromagnetic and gravitational radiation in the low-frequency regime, with the gravitational memory effect providing the canonical realization of the classical soft graviton theorem. 5. Nonperturbative Stabilization of D-Instantons in the Bosonic IIB Matrix Model Source: hep-th (High Energy Physics - Theory) Link: https://arxiv.org/abs/2608.09598 We study the bosonic type IIB (IKKT) matrix model and the fate of the D-instanton positions $p^{(i)}_\mu$, the diagonal components of the $d$ Hermitian matrices, whose one-loop effective potential infamously drives them to a single point. 6. Renormalon Saddles in the OPE Source: hep-ph (High Energy Physics - Phenomenology) Link: https://arxiv.org/abs/2609.28638 The cancellation of renormalon ambiguities in the operator product expansion is usually formulated as a matching between perturbative Borel ambiguities and prescription dependence in non-perturbative condensates. 7. Open-flavor threshold effects on quarkonium spectrum in the BOEFT Source: hep-lat (High Energy Physics - Lattice) Link: https://arxiv.org/abs/2604.12603 The impact of open-flavor thresholds on the quarkonium spectrum has been a subject of study since the introduction of the Cornell potential and has been quantified through various phenomenological approaches, most notably the $^3P_0$ model. 8. Investigating charm quark energy loss in medium with the nuclear modification factor of D$^0$-tagged jets Source: hep-ex (High Energy Physics - Experiment) Link: https://arxiv.org/abs/2409.11939 The nuclear modification factor $R_\mathrm{AA}$ of charm jets, identified by the presence of a D$^0$ meson among the jet constituents, has been measured for the first time in Pb-Pb collisions at a centre-of-mass energy per nucleon pair $\sqrt{s_{\rm NN}} = 5.02$ TeV with the ALICE detector at the LHC. 9. Environmental Imprints of Dark Matter and Accretion Disks on Eccentric EMRIs around Kerr Black Holes Source: gr-qc (General Relativity and Quantum Cosmology) Link: https://arxiv.org/abs/2609.29770 Extreme-mass-ratio inspirals (EMRIs), systems in which a stellar-mass compact object spirals into a supermassive black hole ($M_1$), are prime targets for the space-based gravitational-wave interferometers and are acutely sensitive to their astrophysical environment. 10. Thermal Casimir Effect in A Schwarzschild-like Wormhole Spacetime Source: hep-th (High Energy Physics - Theory) Link: https://arxiv.org/abs/2605.26743 We study the finite-temperature Casimir effect for a massless scalar field confined between two parallel plates in a Schwarzschild-like wormhole spacetime. 11. Half-ladder partial waves for all $n,d$ with applications to string theory Source: hep-ph (High Energy Physics - Phenomenology) Link: https://arxiv.org/abs/2609.28617 Given any four-point scattering amplitude, the partial wave expansion resolves its residues into contributions from individual spin-$s$ internal particles, where each coefficient in the expansion must be non-negative due to unitarity. 12. Fundamental Physics at the Frontier of Noisy Quantum Computation Source: hep-lat (High Energy Physics - Lattice) Link: https://arxiv.org/abs/2609.28825 Quantum computing offers a new, orthogonal direction for investigating fundamental physics, extending beyond classical numerical methods and conventional observables. 13. Measurement of the angle between jet axes in Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV Source: hep-ex (High Energy Physics - Experiment) Link: https://arxiv.org/abs/2303.13347 This paper presents the first measurement of the angle between different jet axes (denoted as ${\Delta}R$) in Pb$-$Pb collisions. 14. Multi-messenger and multi-band signal from first-order phase transitions in proto-neutron stars Source: gr-qc (General Relativity and Quantum Cosmology) Link: https://arxiv.org/abs/2609.29761 A first-order phase transition (PT) alters a compact star on two scales: globally, via growth of a quark-matter core, and microscopically, via collision of quark bubbles, driving a simultaneous gravitational-wave (GW) emission in the kHz and MHz bands. 15. Brane-probes response to poly-vector deformations Source: hep-th (High Energy Physics - Theory) Link: https://arxiv.org/abs/2605.23387 We probe poly-vector deformations of Type II backgrounds using the fundamental string, D0-brane and D3-brane, and of the 11D membrane background by the fundamental M2-brane. 16. Stress-testing the spatially flat Universe: nonparametric spatial curvature determination from DESI DR2 Source: hep-ph (High Energy Physics - Phenomenology) Link: https://arxiv.org/abs/2609.22470 We present a nonparametric determination of spatial curvature using only late-time geometrical probes. 17. Non-stabilizerness and entanglement in $(2+1)$-dimensional SU(2) lattice gauge theory using tensor networks Source: hep-lat (High Energy Physics - Lattice) Link: https://arxiv.org/abs/2609.28634 We study non-stabilizerness (magic) in the ground state of $(2+1)$-dimensional $\mathrm{SU}(2)$ Hamiltonian lattice gauge theory with matter, formulated in the dressed-site basis in the hardcore-gluon truncation and restricted to the zero baryon-number sector. 18. Feasibility Study of $e^+e^-\to \eta_cJ/\psi$ Production and Fully-Charmed Tetraquark Searches at STCF Source: hep-ex (High Energy Physics - Experiment) Link: https://arxiv.org/abs/2609.25870 The proposed high-luminosity Super Tau-Charm Facility (STCF) offers a clean experimental environment for threshold studies of exotic hadrons. 19. A general static and spherically symmetric black hole in traceless metric-affine bumblebee gravity Source: gr-qc (General Relativity and Quantum Cosmology) Link: https://arxiv.org/abs/2609.29675 We construct and analyze a general exact static and spherically symmetric black hole solution in traceless metric-affine bumblebee gravity by considering a vacuum expectation value with temporal and radial components. 20. Strong-coupling results in (non-)conformal $\mathcal{N}=2$ theories with fundamental flavors Source: hep-th (High Energy Physics - Theory) Link: https://arxiv.org/abs/2605.16521 We study a class of four-dimensional $\mathcal{N}=2$ SU($N$) gauge theories with two massless hypermultiplets in the rank-two antisymmetric representation and $0\leq N_f\leq 4$ fundamental flavors. 21. High-quality axion from chain seesaw Source: hep-ph (High Energy Physics - Phenomenology) Link: https://arxiv.org/abs/2609.30136 We propose a chain seesaw mechanism to generate not only the masses of neutral neutrinos but also the masses of charged fermions, by supplementing the standard model $SU(3)_c^{}\times SU(2)_L^{}\times U(1)_Y^{}$ gauge symmetries with an additional $U(1)_{Y'}^{}$ gauge symmetry. 22. Accurate Sampling from Diffusion Models Source: hep-lat (High Energy Physics - Lattice) Link: https://arxiv.org/abs/2609.29902 A new proposal called DM-SMC (Diffusion Model - Sequential Monte Carlo) is investigated, which samples ensembles defined in terms of an action, using diffusion models trained on samples from the ensemble. 23. Performance of the Eos detector with water Source: hep-ex (High Energy Physics - Experiment) Link: https://arxiv.org/abs/2606.10234 In this manuscript we present the first results from Eos, a four tonne optical detector located at the University of California, Berkeley. 24. Matter Creation in Unimodular Gravity Cosmology Source: gr-qc (General Relativity and Quantum Cosmology) Link: https://arxiv.org/abs/2609.29569 We investigate matter creation in the cosmological framework of unimodular gravity. 25. Families of Hitchin Systems in Type-D Source: hep-th (High Energy Physics - Theory) Link: https://arxiv.org/abs/2510.27199 The Coulomb branch geometry of a 4d $\mathcal{N}=2$ SCFT is encoded in the data of a complex integrable system. 26. Mass spectrum and decay widths of charmonium-like mesons: A diabatic approach with complex scaling Source: hep-ph (High Energy Physics - Phenomenology) Link: https://arxiv.org/abs/2609.29909 In this work, we extend our previous diabatic framework for the charmonium-like spectrum below $4.3$ GeV by introducing the complex scaling method. 27. Radiative corrections to neutron $\beta$ decay with explicit $\Delta (1232)$ degrees of freedom Source: hep-lat (High Energy Physics - Lattice) Link: https://arxiv.org/abs/2608.14794 We study electromagnetic radiative corrections to neutron $\beta$ decay within chiral perturbation theory extended to include the $\Delta(1232)$ resonance as an explicit degree of freedom. 28. Search for quantum black holes in lepton+jet final states using proton-proton collisions at $\sqrt{s}=13.6$ TeV with the ATLAS detector Source: hep-ex (High Energy Physics - Experiment) Link: https://arxiv.org/abs/2604.19495 A search for quantum black holes in electron+jet or muon+jet final states with high invariant mass is performed. 29. The Lanczos potential in the Plebanski paradigm of gravity Source: gr-qc (General Relativity and Quantum Cosmology) Link: https://arxiv.org/abs/2609.29434 We present a new Plebanski formulation of General Relativity. 30. Holographic Schwinger effect with Translational Symmetry Breaking Source: hep-th (High Energy Physics - Theory) Link: https://arxiv.org/abs/2510.13707 We investigate the holographic Schwinger effect in a background with translational symmetry breaking (TSB) at finite chemical potential. 31. Centrality-dependent nuclear modification from hard-soft correlations in the glasma Source: hep-ph (High Energy Physics - Phenomenology) Link: https://arxiv.org/abs/2609.29886 We present first predictions from the saturation-physics-based framework IP-Glasma for the nuclear modification factor $R_{AB}$ as a function of centrality in $p$ + O, $p$ + Pb, O + O, and Pb + Pb collisions due only to initial-state effects. 32. Effects of flavor-mixings on charged kaon and pion parton distribution functions Source: hep-lat (High Energy Physics - Lattice) Link: https://arxiv.org/abs/2607.23497 We investigate the charged kaon and pion parton distribution functions (PDFs) in the U(3) Nambu--Jona-Lasinio model, considering a novel flavor-mixing interaction arising from vacuum polarization that differs from the instanton-induced 't~Hooft interaction. Sources in this brief: gr-qc (General Relativity and Quantum Cosmology); hep-ex (High Energy Physics - Experiment); hep-lat (High Energy Physics - Lattice); hep-ph (High Energy Physics - Phenomenology); hep-th (High Energy Physics - Theory). Selected 32 of 413 available items for this weekly brief.