3256 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.
This article proposes a warm Higgs-portal dark matter scenario produced via freeze-in at stronger couplings within a low-temperature thermal bath, which enables detectable collider signals while simultaneously imposing a stringent Lyman-α mass limit of 50–100 keV for a non-thermal dark matter distribution that contradicts standard parametrizations.
This paper demonstrates that CP violation in the decay induced by neutral kaon mixing is a second-order weak interaction effect estimated at the level, rendering it negligible compared to current experimental sensitivity and expected direct CP violation in the charm sector.
This paper analyzes SARAS3's non-detection of the 21-cm signal in the 55.5–84.4 MHz band to constrain Coulomb-like interacting dark matter by self-consistently modeling both gas cooling and structure formation suppression, ultimately finding no statistically significant preference for interacting dark matter over standard cold dark matter while establishing a meaningful upper bound on the global 21-cm signal amplitude.
This paper presents a hybrid quantum-classical algorithm utilizing qutrits and the Dirac-Frenkel evolution equations to successfully simulate the time evolution of a self-interacting three-flavor neutrino system in a core-collapse supernova, achieving results comparable to exact numerical integration while offering advantages over traditional quantum Trotterization.
This paper presents a feasibility study demonstrating that the proposed Super Tau-Charm Facility (STCF) can effectively probe quantum entanglement and Bell-inequality violations in pairs via the decay channel, achieving a reconstructed concurrence of through full Monte Carlo simulations at GeV.
This paper investigates the complementarity between gravitational waves from CP domain wall collapse and electron electric dipole moment measurements in a complex singlet model with dimension-five Yukawa interactions, demonstrating that future EDM experiments can probe parameter regions overlapping with detectable gravitational wave signals to constrain the model's vacuum structure and CP properties.
This paper investigates whether a Real Higgs Triplet model (SM), proposed to explain a 152 GeV Higgs-like excess in di-photon and spectra, can account for recent LHC triboson excesses via Drell-Yan production, finding that while the model is consistent with current data, it predicts more events than observed and is not statistically preferred over the Standard Model.
This paper investigates the impact of strong magnetic fields on neutral pion production in ultraperipheral Pb-Pb collisions at the LHC, finding that the field-induced reduction in the decay width leads to a substantial decrease (by a factor of 2–3) in the production cross section.
This paper investigates heavy meson pair correlations in forward proton-nucleus collisions by incorporating unified Sudakov resummation within the Color Glass Condensate framework, demonstrating good agreement with LHCb data and predicting a robust mass hierarchy in nuclear suppression that highlights the sensitivity of heavy quarks to gluon saturation effects.
This paper proposes that analyzing – interference in the rare decay transforms the channel into a clean probe of short-distance $CP$ violation, enabling LHCb to constrain the CKM parameter to within 35% of its Standard Model value and resolve the sign ambiguity of the amplitude with over 3 significance by the high-luminosity LHC era.