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High Energy Physics - Phenomenology papers

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Infrared singularities and the collinear limits of multi-leg scattering amplitudes
Scattering amplitudes admit a factorised structure in special kinematic limits, such as the soft and collinear limits. In this work, we investigate the multi-particle collinear limits of massless…
Sebastian JaskiewiczAug 6, 2026hep-ph
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Impact of dimension-8 SMEFT operators on baryogenesis via sphaleron decoupling
We investigate whether a baryogenesis mechanism known as sphalerogenesis can account for the observed baryon asymmetry of the Universe within the Standard Model effective field theory. In this…
Kiyoto Ogawa, Masanori TanakaAug 6, 2026hep-ph
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QCD analytic coupling
A brief overview of QCD analytic coupling is presented, mainly following the results obtained in [1]. An application to the pion-photon transition form factor is demonstrated.
I. A. Zemlyakov, I. L. Chuev, A. V. KotikovAug 6, 2026hep-ph
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Descoped and Upscoped FCC-ee Running Scenarios in the SMEFT
We present projections for the sensitivity to new physics of descoped and upscoped FCC-ee scenarios in the framework of the Standard Model Effective Field Theory (SMEFT). Starting from the baseline…
Eugenia Celada, Elie Hammou, Jaco ter Hoeve et al.Aug 6, 2026hep-ph
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Machine Learning is Good for Physics - and Vice Versa
Scientific AI is rapidly transforming fundamental physics research and challenging defining aspects of the fundamental physics methodology. We discuss opportunities and dangers of this transformation…
Michael Krämer, Tilman PlehnAug 6, 2026hep-ph
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Net electron spin rotation in a plane-wave pulse: Holonomy set by the anomalous magnetic moment
We compute the spin rotation that survives after a relativistic electron has crossed a plane-wave laser pulse of finite duration. In the interaction picture built on the exact g=2 evolution, the…
N. S. Akintsov, A. P. Nevecheria, S. N. Andreev et al.Aug 6, 2026hep-ph
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Revisiting the Λc+ nπ+η decay in light of the BESIII measurement
Motivated by the latest BESIII measurements on Λc+ nπ+η, we perform a systematic theoretical study of this decay. We take into account contributions from the N(1535) state dynamically…
Meng-Yuan Li, Jing Tang, Wen-Tao Lyu et al.Aug 6, 2026hep-ph
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Coherent and Stochastic Axion Dark Matter from Thermal Relaxation
An axion driven toward a thermal minimum need not remain a coherent condensate. We derive the coupled attenuation of the field mean and production of stochastic momentum modes in an expanding plasma.…
Shahid Hussain Gurmani, Arzu Cilli, Phongpichit Channuie et al.Aug 6, 2026hep-ph
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Spinor tunnelling amplitudes from all-order Feynman diagram summation
This work presents a non-perturbative quantum field theoretic computation of spinor tunnelling through a potential barrier. Within position space potential formalism, we identify coupled recursion…
Max Fleming, Cedric SimenelAug 6, 2026hep-ph
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Rank and Scale Tests of Shell-Motivated Fermion-Mass Ansatze with a Constrained Neutrino Extension
We test two eight-parameter logarithmic ansatze against the nine charged-fermion Yukawa eigenvalues evaluated in one renormalization scheme at the common scale mu = MZ. A smooth log-linear trend is…
Yaroslav D. Krivenko-Emetov, Oleksii M. LytvynenkoAug 6, 2026hep-ph
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Neural Control Variates at LO and NLO
We employ neural control variates to minimize the range of event weights and avoid negative weights for phase-space integration and event generation. A signed control variate, built from two…
Theo Heimel, Tilman Plehn, Rebecca Revelli et al.Aug 6, 2026hep-ph
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Glauber-Lachs formula-based analysis of three-pion Bose-Einstein correlation data in pp collisions at 7 TeV from the LHCb Collaboration
In this study, we combine the Glauber--Lachs formula from quantum optics and the two-component picture for pion production to analyze data on two- and three-pion Bose--Einstein correlation in pp…
Takuya Mizoguchi, Seiji Matsumoto, Minoru BiyajimaAug 6, 2026hep-ph
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Study of the e+e- J/ψ\,π+π- lineshape near the D*D+c.c. threshold and possible signals for exotic hidden charm states
We investigate the lineshape of the e+e- J/ψ\,π+π- cross section in the vicinity of the D*D+c.c. threshold, where the ``so-called'' G(3900) is observed in the…
Jun Wang, Qiang ZhaoAug 6, 2026hep-ph
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Search for the production of dark Higgs in the framework of Mono-Z portal at the FCC-ee simulated electron-positron collisions at s = 240 GeV
We conducted a Monte Carlo search for dark Higgs particles (hD), which is based on a model derived from the Mono-Z portal. This model suggests the existence of hD and a new…
S. Elgammal, N. De FilippisAug 6, 2026hep-ph
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Compactified 2HDM under the Non-SUSY AdS instability conjecture
We investigate how extra-dimensional dynamics influence Higgs-sector phenomenology by compactifying a Two-Higgs-Doublet Model (2HDM) coupled to 4D gravity on a circle \(S1\). The resulting effective…
M. A. Rbah, S. Saoud, R. Sammani et al.Aug 6, 2026hep-ph
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Dark Matter and Dark Energy in Three-Higgs Doublet Model
This article discusses the incorporation of dark matter and dark energy into a new physics model called the Three-Higgs Doublet Model. Dark matter and dark energy are accommodated as CP-even and…
Mohid Farhan, Ibtehaj Hassan, Muhammad Usman et al.Aug 6, 2026hep-ph
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Anisotropy effects on heavy quark dynamics in Gribov modified gluon plasma
In the early stages of relativistic heavy-ion collisions, the quark-gluon plasma momentum distribution is anisotropic, leading to instabilities driven by chromomagnetic plasma modes. In this work, we…
Sumit, Jai Prakash, Santosh Kumar Das et al.Aug 6, 2026hep-ph
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HiggsTools for LHC Run 3 and Beyond
HiggsTools, including the subpackages HiggsPredictions, HiggsBounds, and HiggsSignals, is a toolbox for Beyond-the-SM (BSM) scalar phenomenology at the LHC. It provides BSM model predictions, tests…
Henning Bahl, Thomas Biekötter, Sven Heinemeyer et al.Aug 5, 2026hep-ph
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Photon-nucleon entanglement in Compton scattering at low and high energies
We study spin-spin entanglement in the final state photon-nucleon system in Compton scattering, both at low energy below the pion threshold and at high energy in perturbative QCD to next-to-leading…
Yoshitaka Hatta, Víctor Martínez-FernándezAug 5, 2026hep-ph
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Beyond Borel Windows: A Systematic Optimization Framework for QCD Sum Rules
We propose a systematic optimization framework for determining the sum rule window in QCD Laplace sum rules. Instead of relying primarily on fixed convergence percentages and visual plateau…
Raphael M. AlbuquerqueAug 5, 2026hep-ph
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GOOFy-compatible 3HDMs and beyond
Beyond conventional Higgs-family and general CP transformations, one may also consider a broader class of non-standard "GOOFy" transformations, in which the scalar fields and their conjugates…
I. de Medeiros Varzielas, A. KunčinasAug 5, 2026hep-ph
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Novel Signatures of Matter-Induced Dark Matter Decay in Large-Volume Neutrino Telescopes
Large-volume neutrino telescopes offer a unique opportunity to search for decaying dark matter through events containing a pair of energetic, highly non-collimated muon tracks emerging from a common…
Hooman Davoudiasl, Dan Hooper, Samyak JainAug 5, 2026hep-ph
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First-principles upper bounds on dark matter-electron scattering rates from condensed matter sum rules
A wide variety of condensed matter systems are used or proposed as detectors to search for dark matter-electron scattering. In general, the scattering rate depends on detailed knowledge of the…
Bradford A. Barker, Jay Epstein, Luke James et al.Aug 5, 2026hep-ph
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Axion-driven spontaneous leptogenesis, precisely
We revisit a minimal scenario for spontaneous leptogenesis where the asymmetry generation is driven by a heavy axion-like field evolving via standard misalignment. We focus on the simplest framework…
Konstantin Kuckenberg, Martin A. Mojahed, Kai Schmitz et al.Aug 5, 2026hep-ph
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Baryogenesis via the CKM Matrix with Minimal Flavor Violation
It is often claimed Standard Model CP violation is insufficient for baryogenesis. We present a counterexample using minimal flavor violation (MFV) in which all CP-violating effects arise from the…
Innes Bigaran, Gordan Krnjaic, Kevin Langhoff et al.Aug 5, 2026hep-ph
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