2527 papers
Hep-Ex explores the fascinating intersection where particle physics meets experimental reality. This field investigates how scientists build massive detectors and accelerate particles to test the fundamental laws of nature, turning abstract theories into measurable data. It is the rigorous process of searching for new particles or forces that could reshape our understanding of the universe, often requiring years of collaboration and engineering.
At Gist.Science, we ensure these discoveries become accessible to everyone. We process every new preprint in this category directly from arXiv, generating both plain-language explanations for curious readers and detailed technical summaries for specialists. Our goal is to bridge the gap between complex experimental results and public understanding without losing scientific nuance.
Below are the latest papers in Hep-Ex, freshly summarized and ready for you to explore.
The paper introduces WavePID, a novel template-based classifier that leverages nanosecond-scale timing information from individual IceCube detector modules to significantly improve low-energy neutrino flavor identification by distinguishing between muon tracks and electromagnetic showers through complementary observables.
This paper presents a comprehensive analysis of exclusive semileptonic decays within and beyond the Standard Model by employing Heavy Quark Effective Theory with a data-driven -expansion to predict precise lepton flavor universality ratios and evaluate the sensitivity of various observables to new physics scenarios, including the Two Higgs Doublet Model and effective field theories.
Using upgraded PandaX-4T Run 2 data combined with previous results, researchers report the first positive indication of solar $pp$ neutrino--electron scattering below 165 keV, yielding a measured flux of that is consistent with Standard Solar Model predictions.
This paper presents a next-to-leading order (NLO) calculation matched to a Parton Shower (PS) for the radiative return processes (with ), implemented in the updated BabaYaga@NLO Monte Carlo generator to enable precision measurements of the pion form factor for the muon anomalous magnetic moment.
This paper presents the first complete theoretical calculations of jet substructure observables on tracks at the Large Hadron Collider, utilizing factorization theorems and renormalization group techniques to compute projected energy correlators up to four points at next-to-leading collinear logarithmic accuracy, thereby enabling precise comparisons between experimental tracking data and theory.
This paper proposes a flavor mixing scheme to classify molecular hidden-charm pentaquarks formed by ground single-charm baryons and anti-charmed mesons, successfully explaining observed and states while predicting the existence and mass spectra of new single- and double-strange bound states driven by specific channel mixings.
This paper proposes "spin femtoscopy," a novel framework that utilizes spin-resolved femtoscopic correlation functions of particle pairs (such as ) to experimentally access and disentangle genuine two-particle spin correlations from quantum statistical and final-state interaction effects in relativistic heavy-ion collisions.
This paper presents a GPU-accelerated spectrum-reweighting framework that significantly accelerates likelihood evaluations for new-physics searches in solar neutrino--electron scattering by applying bin-to-bin weights to precomputed recoil spectra, thereby eliminating the need for costly detector Monte Carlo regeneration at each parameter point and enabling interactive parameter scans on a single workstation.
This paper resolves the negative angular-parameter puzzle in and decays by demonstrating that a model incorporating -breaking octet contributions and common final-state interactions mixing S- and D-wave amplitudes successfully fits the data, whereas an exact singlet description fails decisively.
Using QCD sum rules, this paper determines the mixing angle between the and axial-vector states in the sector to be , indicating significant mixing between these two states.