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.
This study demonstrates that heavy dark matter captured by rapidly evolving massive stars, particularly the first stars, can significantly alter their lifecycles through thermalization, annihilation equilibrium, or self-gravitating collapse into black holes, with capture rates critically dependent on stellar composition, evolutionary stage, and the local dark matter velocity distribution.
This paper presents an overview of the Tartu working group's contributions to the COST action CA24159, covering topics such as charmed baryon decays, CP violation, electroweak corrections, Higgs decays, and the intrinsic charm mechanism within a nonlocal field operator framework.
This paper demonstrates that the thermal misalignment mechanism for producing scalar dark matter naturally suppresses cosmological isocurvature perturbations through a late-time phase offset between the background field and superhorizon fluctuations, thereby offering a viable alternative to the standard misalignment mechanism that avoids stringent CMB constraints.
This paper demonstrates that the beamstrahlung effect in wakefield colliders, typically considered a limitation, actually enhances the sensitivity to heavy vector resonances like a kinetically mixed by naturally scanning a broad spectrum of center-of-mass energies.
The paper proposes that the formation of deconfined quark matter cores in nascent neutron stars during galactic supernovae could emit high-frequency gravitational waves in the MHz band, offering a novel avenue for testing quantum chromodynamics using high-frequency detectors.
This paper investigates a two-component dark matter scenario within the Type-I 2HDM featuring a real scalar and a Dirac fermion stabilized by a symmetry, demonstrating that while viable parameter regions exist to satisfy relic abundance and direct detection constraints, collider bounds on the scalar sector significantly narrow the allowed space and create tension with dark matter phenomenology, particularly for sub-TeV masses.
This review paper synthesizes current theoretical, cosmological, astrophysical, and experimental efforts to explore the theoretically motivated meV axion mass range, highlighting the convergence of diverse approaches aimed at discovering these particles as a key probe for beyond-Standard-Model physics.
This paper investigates photon-photino mixing induced by a Lorentz-symmetry violating fermionic-condensate background within a supersymmetric framework and derives constraints on the strength of this background by analyzing stellar energy loss and solar data.
This paper presents a modified quark-gluon string model incorporating nuclear-transverse momentum dependent gluon densities to successfully describe inclusive soft hadron production in proton-lead collisions at LHC energies, demonstrating superior agreement with CMS, ATLAS, and ALICE data at low transverse momentum compared to other theoretical predictions.
This paper investigates a scale-invariant extension of the Standard Model where the electroweak phase transition is delayed until a low temperature of approximately 28 MeV and triggered by the QCD chiral symmetry-breaking transition, leading to unique cosmological consequences such as the potential formation of primordial black holes, quark-lepton nuggets, and low-frequency gravitational waves.