3153 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 demonstrates that the Gel'fand-Yaglom theorem and the Green's function method are completely equivalent for computing ratios of functional determinants of one-dimensional operators through a contour integral argument, while also providing a natural prescription for handling vanishing and negative eigenvalues.
This paper proposes a minimal extension of the Standard Model featuring a real singlet scalar and a singlet Dirac fermion dark matter candidate, demonstrating that a trilinear portal interaction can decouple Higgs mixing from the quartic coupling to simultaneously satisfy collider and direct-detection constraints while enabling a strong first-order electroweak phase transition with observable gravitational wave signatures.
This paper proposes a cosmological collider model where a standard inflaton interacts with ghost condensate spectator fields, leveraging their modified dispersion relation to weaken Boltzmann suppression and enhance primordial non-Gaussianity while remaining consistent with observational constraints.
This paper proposes a simple two-field inflation mechanism where a sharp transition between distinct energy scales induces rapid field turns that amplify fluctuations, potentially generating primordial black holes and secondary gravitational waves through a peak in the scalar power spectrum.
Using lattice QCD simulations with improved actions, the study demonstrates that localized low-lying Dirac eigenmodes emerge at a temperature of 150–160 MeV, placing the onset of this localization phenomenon firmly within the chiral crossover region.
This paper proposes that rotating synchrotron radiation (RoSyRa) from a magnetized, rotating quark-gluon plasma generates a low-transverse-momentum photon spectrum with significant elliptic flow, offering a viable solution to the "direct photon puzzle."
This study employs QCD sum rules with advanced computational techniques to investigate and dibaryons, revealing that while scalar states are lighter than tensor ones, the charm system likely remains unbound above its threshold whereas the bottom system may form bound states in the scheme.
This paper proposes using ultra-peripheral Au+Au collision data from the PHENIX experiment at RHIC to search for GeV-scale axion-like particles via the resonant process, demonstrating sensitivity to previously unexplored mass and coupling regions.
This paper evaluates the impact of cascade production on long-lived particle detection at the SHiP experiment, finding that while such processes can enhance event rates for light axion-like particles, the resulting soft kinematics and daughter-level acceptance constraints generally suppress the observable signal for both axion-like particles and heavy neutral leptons, rendering the cascade contribution subdominant except in specific low-mass scenarios.
This paper utilizes the perturbative QCD approach and flavor symmetry to calculate sizable branching ratios (on the order of ) for semi-invisible meson decays into light baryons and dark baryons, suggesting these processes as promising channels for dark matter searches at hadron colliders and B factories.