⚛️ Category

hep-ph

5365 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

Theoretical uncertainties in reconstructing model parameters with gravitational waves from supercooled phase transitions

This paper demonstrates that reconstructing fundamental parameters of supercooled phase transition models from future gravitational-wave signals is severely limited by theoretical uncertainties, as the commonly used daisy-resummation scheme introduces errors that dominate over statistical reconstruction uncertainties compared to a more rigorous high-temperature effective field theory approach.

Maciej Kierkla, Marek Lewicki, Philipp Schicho, Daniel Schmitt, Bogumila Swiezewska2026-07-21
⚛️ high-energy experiments

Full analysis of CP violation induced by the decay angular correlations in four-body cascade decays of heavy hadrons

This paper proposes a formalism for analyzing decay angular correlations in four-body cascade decays of heavy hadrons to uncover CP violation dynamics, demonstrating through a reanalysis of LHCb data on the B0→ppˉK+π−B^0\to p\bar{p}K^+\pi^- channel that such correlations could reveal significant CP asymmetries (~10%) that are currently missed by standard branching ratio comparisons.

Zhen-Hua Zhang, Jian-Yu Yang, Xin-Heng Guo2026-07-20
⚛️ phenomenology

Spectroscopy and Radiative Decays of ΩcccΩ_{ccc} and ΩbbbΩ_{bbb} Baryons in a Quark-Diquark Model

This paper investigates the mass spectra and radiative decay widths of the triply heavy baryons Ωccc\Omega_{ccc} and Ωbbb\Omega_{bbb} by employing a screened potential model within a quark-diquark framework to solve a relativized Hamiltonian and calculate E1E1 and M1M1 electromagnetic transitions for various excited states.

Chaitanya Anil Bokade, Bhaghyesh2026-07-20
⚛️ general relativity

Gravitational waves from parabolic encounters: A study of linear and nonlinear memory

This paper investigates gravitational wave memory effects in parabolic encounters using an effective field theory formalism, arguing that treating the parabolic case as a distinct idealized limit rather than a simple extrapolation of eccentric or hyperbolic scenarios reveals unique features in the zero frequency limit and challenges previous estimation methods.

Samik Dutta, Ankur Chhabra, Aritra Banerjee, Sajal Mukherjee, Subhendra Mohanty2026-07-20
⚛️ high-energy theory

Spectrum of radiation from global strings and the relic axion density

This paper investigates the radiation spectrum from global strings to refine predictions for the relic axion density, finding that a "soft" exponential spectrum (rather than a "hard" one) and careful exclusion of the string's self-field significantly alter the estimated axion mass, yielding values ranging from approximately 4 to 160 μeV depending on the emission mechanism.

Richard A. Battye, Lukasz P. Bunio, Steven J. Cotterill, Pranav B. Gangrekalve Manoj2026-07-20
⚛️ phenomenology

Prompt cusps in hierarchical dark matter halos: Implications for annihilation boost

By integrating long-lived "prompt cusps" into a hierarchical semi-analytic framework, this study demonstrates that these early density remnants can significantly enhance the dark matter annihilation boost in Milky-Way-sized halos to approximately 50, while revealing that their abundance is lower than previously estimated by universal-average models.

Shin'ichiro Ando, Martín Moró González, Youyou Li2026-07-20
⚛️ high-energy experiments

Strange Quark Electric Dipole Moment withTopological Anomalies

This paper proposes an anomaly-based framework utilizing Chern-Simons-induced T-odd asymmetries in exclusive e+e−e^+e^- hadronic final states, such as γ∗→K+K−π0\gamma^*\to K^+K^-\pi^0, to probe the strange-quark electric dipole moment with a projected precision of 10−18 e⋅cm10^{-18}\,e\cdot\mathrm{cm}, significantly surpassing current direct constraints from hyperon EDMs.

Chao-Qiang Geng, Xiang-Nan Jin, Chia-Wei Liu, Bin Wu2026-07-20