⚛️ Category

hep-ph

5582 papers

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

A 2% determination of NeffN_{\rm eff} from primordial element abundance, cosmic microwave background, and baryon acoustic oscillation measurements

By combining primordial element abundance measurements with cosmic microwave background and baryon acoustic oscillation data, this study establishes the tightest constraint to date on the effective number of relativistic species, finding Neff=2.990±0.070N_{\rm eff}=2.990\pm0.070, which strongly agrees with the standard model prediction and places stringent limits on light particles and models attempting to resolve the Hubble tension.

Samuel Goldstein, J. Colin Hill2026-03-16
⚛️ phenomenology

A search for super-imposed oscillations to the primordial power spectrum in Planck and SPT-3G 2018 data

This paper analyzes Planck and SPT-3G 2018 data to search for super-imposed oscillations in the primordial power spectrum, finding that combined datasets provide tighter constraints on oscillation amplitudes and reveal improved fits with significant statistical gains compared to individual datasets.

Akhil Antony, Fabio Finelli, Dhiraj Kumar Hazra, Daniela Paoletti, Arman Shafieloo2026-03-13
⚛️ lattice

Parton Distribution Functions in the Schwinger model from Tensor Network States

This paper proposes and demonstrates a method using tensor network states within the Hamiltonian formalism to accurately compute parton distribution functions for the vector meson in the massive Schwinger model directly in Minkowski space, thereby overcoming the limitations of Euclidean lattice calculations and offering a pathway for quantum simulations.

Mari Carmen Bañuls, Krzysztof Cichy, C. -J. David Lin, Manuel Schneider2026-03-13
⚛️ phenomenology

Conversion of photons to dileptons in the Kroll-Wada and parton shower approaches

This paper demonstrates that parton shower event generators offer a more accurate description of dilepton spectra from photon conversion in heavy-ion collisions compared to the traditional Kroll-Wada approach, particularly at larger invariant masses where they better account for phase-space suppression, recoil kinematics, and higher-order corrections.

Tomáš Ježo, Michael Klasen, Alexander Puck Neuwirth2026-03-13
⚛️ general relativity

Dark Matter Clumps as Sources of Gravitational-Wave Glitches in LIGO/Virgo/KAGRA data

This paper investigates whether small dark matter clumps passing near Earth could generate the gravitational-wave glitches observed in LIGO/Virgo/KAGRA data, finding that while most glitches are inconsistent with this hypothesis, the analysis establishes the first direct upper limits on the local over-density of such dark matter clumps.

Ezequiel Alvarez, Scott Perkins, Federico Ravanedo, Nicolas Yunes2026-03-13
⚛️ phenomenology

Fully heavy tetraquark states with a diquark-antidiquark configuration

This paper systematically investigates the mass spectra and decay channels of fully heavy tetraquark states using a diquark-antidiquark model, concluding that while X(6600)X(6600), X(6900)X(6900), and X(7200)X(7200) are unlikely to be 1S1S-wave fully charmed tetraquarks, X(6200)X(6200) is a strong candidate for the 2++2^{++} state and predicting several narrow states for future experimental observation.

Xi Xia, Tao Guo2026-03-13
⚛️ high-energy experiments

Constraints on Dark Matter Models from Supermassive Black Hole Evolution

This paper utilizes a semi-analytical model of galaxy and supermassive black hole evolution within the Λ\LambdaCDM paradigm to demonstrate that the observed stellar mass–black hole mass relation at high redshifts disfavours fuzzy dark matter fields with masses below 2.0×10−202.0\times 10^{-20} eV and warm dark matter particles with masses below 7.2 keV at the 95% confidence level.

John Ellis, Malcolm Fairbairn, Juan Urrutia, Ville Vaskonen2026-03-13