5243 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 paper proposes that supermassive black hole seeds originate from primordial black holes formed in exponentially rare inflationary patches where a spectator scalar field selects a vacuum with a heavier thermal dark matter mass, creating sufficient density contrasts to collapse without violating CMB spectral-distortion constraints.
This study utilizes UrQMD simulations to compare pair-source and correlation-function based Lévy analyses of pion sources in central Ar+Sc collisions at SPS energies, establishing a hadronic baseline for NA61/SHINE femtoscopy research by examining non-Gaussian features as functions of transverse mass and collision energy.
This study utilizes a light-front quark model incorporating quark-meson coupling effects to demonstrate that the internal structure of pseudoscalar mesons, specifically their distribution amplitudes and parton distribution functions, undergoes significant medium-induced modifications in nuclear matter, characterized by suppressed intermediate- distributions and enhanced Gegenbauer coefficients that qualitatively resemble the EMC effect.
This paper investigates the momentum-space mechanical properties of small- gluons and sea quarks by deriving gravitational transverse-momentum distributions from the light-front gauge-invariant canonical energy-momentum tensor and numerically evaluating their momentum densities and fluxes using the McLerran-Venugopalan model and Balitsky-Kovchegov evolution, revealing significant departures from free-particle relations.
This paper presents a dynamical holographic study of gravitational form factors for scalar, pseudoscalar, and tensor glueballs, demonstrating that while standard constrained cubic vertices fail to match lattice data, a proposed normalized heavy-target effective coupling successfully reproduces scalar observations and provides predictions for tensor and pseudoscalar form factors and pressure profiles.
This paper demonstrates that fundamental physical principles like causality and passivity impose a tight upper bound on the dynamical tidal deformability of neutron stars, which is found to be nearly saturated by current theoretical models, thereby confirming the dominance of f-modes and offering a new equation-of-state-independent method to constrain dynamical tides.
This paper calculates the third post-Minkowskian order conservative deflection of a photon by a massive spinless source using scattering amplitudes and on-shell recursion, demonstrating that the resulting two-loop logarithmic term agrees with the weak-deflection expansion of Schwarzschild null geodesics.
This paper demonstrates that the high-energy nuclear recoil observed by the LZ experiment can directly probe dark matter scenarios where the relic abundance is determined by coscattering or conversion-driven freeze-out, specifically within a singlet-doublet fermion model coupled to a light dark photon, thereby testing the same interaction mechanisms that governed dark matter production in the early universe.
This paper proposes using the density-density-momentum bispectrum, particularly through the cross-correlation of kinetic Sunyaev-Zel'dovich anisotropies and galaxy clustering, as a novel and computationally efficient probe to detect primordial parity violation with competitive sensitivity compared to existing methods.
This paper argues that the hierarchy problem is resolved by recognizing that renormalized scalar mass corrections from heavy fields decouple as rather than exhibiting quadratic sensitivity to the cutoff, thereby aligning with the Appelquist-Carazzone theorem while clarifying that the origin of the small tree-level mass remains an open question.