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.

Primordial Physics in the Nonlinear Universe: signatures of inflationary resonances, excitations, and scale dependence

This paper demonstrates that weak lensing analysis of future LSST data can provide competitive and complementary constraints on primordial non-Gaussianity models, particularly those with features on small scales, by resolving their signatures in the deeply nonlinear late-time density field through a suite of over thirty templates and new simulations of resonant signatures.

Dhayaa Anbajagane, Hayden Lee2026-03-24⚛️ gr-qc

Study of BcJ/ψ(a1(1260)B_{c} \to J/\psi (a_1(1260), b1(1235)b_1(1235), a2(1320)a_2(1320), K2(1430))K_2^*(1430)) decay with a perturbative QCD approach

Motivated by LHCb observations, this study employs the perturbative QCD factorization framework to analyze Bc+J/ψB_c^+ \to J/\psi decays into axial-vector and tensor mesons, predicting branching ratios within experimental reach and establishing the dominance of longitudinal polarization amplitudes.

Yun Zhao, Xian-Qiao Yu2026-03-24⚛️ hep-ph

Background Suppression in Quantum Sensing of Dark Matter via Collective Entangled-State Projection

This paper proposes a protocol for enhancing dark matter detection sensitivity by projecting quantum sensors into a collective excited state, which suppresses non-collective noise by a factor equal to the number of sensors without requiring the maintenance of entanglement during signal accumulation.

Shion Chen, Hajime Fukuda, Yutaro Iiyama, Yuya Mino, Takeo Moroi, Mikio Nakahara, Tatsumi Nitta, Thanaporn Sichanugrist2026-03-24⚛️ hep-ex

Limits on the axion-photon coupling from Chandrayaan-2 observations

This paper presents the first constraints on the axion-photon coupling (gaγγg_{a \gamma \gamma}) using soft X-ray observations of the quiet Sun from India's Chandrayaan-2 mission, establishing an upper limit of approximately (0.502.26)×1010(0.50 - 2.26) \times 10^{-10} GeV1^{-1} at 95% confidence for axion masses below 5×1045 \times 10^{-4} eV.

Tanmoy Kumar, N. P. S. Mithun, Subhendra Mohanty, Sourov Roy, B. S. Bharath Saiguhan, Santosh Vadawale2026-03-24⚛️ hep-ph

Three Birds with One Stone: Core-Collapsed SIDM Halos as the Common Origin of Dense Perturbers in Lenses, Streams, and Satellites

This paper demonstrates that core-collapsed self-interacting dark matter halos of approximately 106M10^6\,{M_\odot} provide a unified explanation for three distinct astrophysical observations: the dense perturber affecting the GD-1 stellar stream, the structural properties of a perturber in the JVAS B1938+666 strong lensing system, and the origin of the Fornax 6 stellar cluster.

Hai-Bo Yu2026-03-24⚛️ hep-ph

Interpreting the 650 GeV and 95 GeV Higgs anomalies in the next-to-two-Higgs-doublet model

This paper demonstrates that the Next-to-Two-Higgs-Doublet Model (N2HDM) can simultaneously explain the LHC and LEP anomalies at 95 GeV and the 650 GeV excess by predicting a heavy CP-even Higgs boson decaying into a 125 GeV Higgs and a 95 GeV scalar, a scenario consistent with current experimental constraints and offering distinct testable signatures for future collider runs.

Rachid Benbrik, Mohammed Boukidi, Khouloud Kahime, Stefano Moretti, Larbi Rahili, Bassim Taki2026-03-24⚛️ hep-ph

Analysis of the strong decays of the Y(4660)Y(4660) in tetraquark scenario via the QCD sum rules

Using three-point QCD sum rules with vacuum condensates up to dimension 5, this study investigates the strong decays of four vector tetraquark candidates for the Y(4660)Y(4660) and finds that the predicted total width of 61.5±7.3MeV61.5\pm7.3\,\rm{MeV} for the [sc][sˉcˉ][sc][\bar{s}\bar{c}] configuration (JPC=1J^{PC}=1^{--}) aligns excellently with experimental data, thereby supporting this specific tetraquark interpretation.

Xiao-Song Yang, Zhi-Gang Wang2026-03-24⚛️ hep-ph

Analysis of the hidden-charm pentaquark candidates in the J/ψΞJ/\psi \Xi mass spectrum via the QCD sum rules

This paper employs QCD sum rules to construct color 3ˉ3ˉ3ˉ\bar{\mathbf{3}}\bar{\mathbf{3}}\bar{\mathbf{3}} five-quark currents and calculate the mass spectrum of hidden-charm doubly-strange pentaquark states with specific quantum numbers, providing theoretical predictions for future experimental searches in Ξb\Xi_b^- decays while challenging the conventional "good" and "bad" diquark classification.

Zhi-Gang Wang, Yang Liu2026-03-24⚛️ hep-ph