hep-ph papers | Gist.Science

Hep-Ph explores the fundamental forces that govern how particles interact and behave at the smallest scales imaginable. This field bridges the gap between theoretical predictions and experimental reality, helping scientists understand the building blocks of our universe without getting lost in complex mathematics. Whether investigating the Higgs boson or searching for new physics beyond current models, these studies push the boundaries of human knowledge about matter and energy.

At Gist.Science, we process every new preprint in this category as soon as it appears on arXiv. We strip away the dense jargon to offer both accessible plain-language explanations and detailed technical summaries, ensuring that groundbreaking research is understandable to everyone from students to seasoned experts. Below are the latest papers in this dynamic field, ready for you to explore with clarity and depth.

⚛️ phenomenology

Cosmological Constraints on Neutrino Masses in a Second-Order CPL Dark Energy Model

This study analyzes cosmological constraints on the sum of neutrino masses across $\Lambda$ CDM, CPL, and a second-order EXP dark energy models using various datasets and hierarchies, finding that the CPL parameterization yields tighter bounds than EXP, frequentist limits are stricter than Bayesian ones, and no statistically significant evidence for nonzero neutrino mass consistent with oscillation lower limits is detected.

Shubham Barua, Shantanu Desai2026-01-26

🔢 mathematics

Lie symmetry analysis of the two-Higgs-doublet model field equations

This paper applies Lie symmetry analysis to the two-Higgs-doublet model's field equations to confirm its known strict variational symmetries, demonstrate the absence of other scalar Lie point symmetries, and establish general results for simplifying symmetry calculations in particle physics models.

M. Aa. Solberg2026-01-26

⚛️ phenomenology

Transverse-momentum resummation at mixed QCD $\otimes$ QED NNLL accuracy for Z boson production at hadron colliders

This paper presents a calculation of the transverse momentum distribution for neutral charged bosons at hadron colliders, performing resummation of simultaneous QCD and QED initial-state radiation effects up to mixed NNLL accuracy and demonstrating that these mixed contributions induce percent-level corrections to pure QCD predictions.

Andrea Autieri, Stefano Camarda, Leandro Cieri, Giancarlo Ferrera, German Sborlini2026-01-26

⚛️ high-energy experiments

GeV-scale QCD Axion

This paper proposes a GeV-scale QCD axion model where the Peccei-Quinn symmetry is broken below the QCD scale and carried solely by the right-handed up quark, successfully evading standard constraints while predicting distinctive signatures such as heavy quark pair production at the LHC and rare Higgs or Z boson decays.

Hitoshi Murayama2026-01-26

⚛️ phenomenology

PanopTag: Simultaneously Tagging All Jets in a Particle Collision Event

The paper introduces PanopTag, a novel encoder-decoder architecture that simultaneously tags all jets in a particle collision event by leveraging inter-jet correlations and event-level context, thereby significantly outperforming traditional single-jet classification methods in heavy-flavor tagging.

Umar Sohail Qureshi, Brendon Bullard, Ariel Schwartzman2026-01-26

⚛️ phenomenology

Flavour-Changing Neutral Current Top Decays in the Three Higgs Doublet Model

This paper investigates flavour-changing neutral current top quark decays within a $Z_3$ -symmetric democratic Three Higgs Doublet Model, demonstrating that one-loop contributions from an extended scalar sector can produce branching ratios significantly exceeding Standard Model predictions while remaining consistent with current constraints and potentially detectable at the High-Luminosity LHL.

Baradhwaj Coleppa, Benjamin Fuks, Akshat Khanna2026-01-26

⚛️ nuclear experiments

Tribute to Tullio Bressani, Bogdan Povh and Toshimitsu Yamazaki

This HYP2025 talk pays tribute to the late Tullio Bressani, Bogdan Povh, Toshimitsu Yamazaki, and Yoshinori Akaishi, honoring their enduring contributions to the development of strangeness nuclear physics.

Avraham Gal2026-01-26

⚛️ nuclear experiments

Compatibility of recent ${\cal S}=-2$ emulsion events

This paper questions the compatibility of recent ${\cal S}=-2$ hypernuclear assignments from J-PARC E07 $\Xi^-$ -capture emulsion events with those derived from other experiments.

Avraham Gal2026-01-26

⚛️ phenomenology

Structure-Dependent QED Effects in Exclusive B Decays at Subleading Power

This paper derives the first subleading-power factorization theorem for the structure-dependent QED effects in the exclusive decay $B^-\to\ell^-\bar{\nu}_\ell$ , demonstrating that the amplitude depends on two- and three-particle light-cone distribution amplitudes and a new hadronic parameter $F(\mu,\Lambda)$ that generalizes the $B$ -meson decay constant.

Claudia Cornella, Matthias König, Matthias Neubert2026-01-23

⚛️ phenomenology

Analysis of the $q\bar q\to Z^* \to hA \to4τ$ process within the lepton-specific 2HDM at the LHC

This paper investigates the feasibility of detecting the $pp \to Z^* \to hA \to 4\tau$ process within the lepton-specific 2HDM Type-X scenario at the LHC (14 TeV, 300 fb $^{-1}$ ), demonstrating that a combination of kinematic selection and machine learning can effectively suppress Standard Model backgrounds to achieve significant sensitivity in the final state featuring same-sign leptons and hadronic tau decays.

Yan Ma, A. Arhrib, S. Moretti, S. Semlali, Y. Wang, Q. S. Yan2026-01-23

← Previous Next →

hep-ph

Cosmological Constraints on Neutrino Masses in a Second-Order CPL Dark Energy Model

Lie symmetry analysis of the two-Higgs-doublet model field equations

Transverse-momentum resummation at mixed QCD⊗\otimes⊗QED NNLL accuracy for Z boson production at hadron colliders

GeV-scale QCD Axion

PanopTag: Simultaneously Tagging All Jets in a Particle Collision Event

Flavour-Changing Neutral Current Top Decays in the Three Higgs Doublet Model

Tribute to Tullio Bressani, Bogdan Povh and Toshimitsu Yamazaki

Compatibility of recent S=−2{\cal S}=-2S=−2 emulsion events

Structure-Dependent QED Effects in Exclusive B Decays at Subleading Power

Analysis of the qqˉ→Z∗→hA→4τ q\bar q\to Z^* \to hA \to4τqqˉ​→Z∗→hA→4τ process within the lepton-specific 2HDM at the LHC

Transverse-momentum resummation at mixed QCD $\otimes$ QED NNLL accuracy for Z boson production at hadron colliders

Compatibility of recent ${\cal S}=-2$ emulsion events

Analysis of the $q\bar q\to Z^* \to hA \to4τ$ process within the lepton-specific 2HDM at the LHC