3905 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.
Motivated by recent near-threshold enhancements in top-quark pair production, this paper utilizes the instantaneous Bethe-Salpeter formalism to calculate the S-wave spectral structures of heavy-light systems containing a single top quark (, , and ), interpreting the resulting masses as model-dependent reference positions for quasi-bound configurations rather than conventional hadrons due to the top quark's rapid decay.
This paper proposes a modification to the Standard Model where the photon's longitudinal component propagates at an extremely slow speed, breaking Lorentz symmetry and causing charged particles to experience severe momentum-recoils that constrain this speed to be less than , effectively turning the preferred reference frame into a material medium that absorbs momentum from matter.
Using particle-in-cell simulations, this study demonstrates that non-linear electrostatic plasma instabilities in self-interacting dark matter subhalos orbiting the Milky Way can cause substantial turbulent heating and mass loss, potentially suppressing the low-mass subhalo population by up to 97% depending on orbital eccentricity.
This paper explores how combining dark dimension scenarios with an axiverse modifies cosmology by enabling freeze-in production of dark matter from Kaluza-Klein towers and suppressing observational constraints through energy dilution across numerous axion towers.
This paper proposes a "nine-link texture" model for Yukawa matrices that naturally links the empirical nearness of CKM unitarity triangle angles to simple fractions of with an underlying theory of flavor and spontaneous CP violation, while simultaneously offering a potential resolution to the strong CP problem.
This paper employs a semi-analytic cosmological satellite generator to compare kinematic and stellar-mass-based estimates of Milky Way ultra-faint dwarf densities, revealing a statistically significant discrepancy where observed compact dwarfs appear overdense compared to Cold Dark Matter predictions, thereby establishing a robust framework for testing the CDM paradigm with future data.
This paper presents a complete next-to-leading order (NLO) calculation of the inseparable four-top ($tttt$) and three-top-plus-W ($tttW$) production processes at the LHC, introducing a novel window-removal prescription to resolve gauge invariance issues and demonstrating that joint predictions are essential for accurate experimental comparisons due to significant contributions from non-resonant components.
This paper updates astrophysical J-factors for Milky Way dwarf spheroidal galaxies using a semi-analytic model and new kinematic data, revealing that incorporating cosmologically informed priors significantly tightens dark matter annihilation constraints compared to standard methods while suggesting that future ultra-faint discoveries are unlikely to substantially improve these limits.
This paper presents next-to-next-to-leading order QCD predictions for double Higgs production in association with a vector boson () within both SMEFT and HEFT frameworks, providing inclusive cross-sections at LHC energies and analyzing how QCD corrections factorize differently for versus $Zhh$ channels due to the latter's gluon-induced component.
This paper introduces a B-decay tagged energy correlator (BTEC) to resolve the angular structure of energy flow in inclusive decays, deriving a factorization relation that incorporates a new measured quark jet function to enable closure tests of leading-power endpoint factorization and improve signal-background discrimination.