1442 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.
This study demonstrates that the CEPC, utilizing jet flavor tagging on simulated -pair decay data at , can achieve high-precision, largely model-independent determinations of CKM matrix elements and with projected statistical uncertainties of and , respectively, thereby offering stringent tests of the Standard Model and sensitivity to new physics.
This paper resolves the apparent contradiction between free-quark-like fluctuations of conserved charges and confined mesonic correlators above the chiral crossover by demonstrating that while mesonic propagation remains string-bound, conserved quark number densities effectively bypass confinement through quark interchanges between overlapping color-singlet clusters, a phenomenon analogous to quark-hadron duality.
This paper presents the first direct calculation of the four tensor transition form factors for the transition using QCD light-cone sum rules, revealing distinct flavor decomposition patterns and providing model-independent chiral-odd inputs for future phenomenological analyses.
This paper presents recent LHCb results showing that the significantly enhanced production ratios of heavy flavor hadrons (such as and ) in high-multiplicity collisions suggest a modification of the hadronization mechanisms in these events.
This paper presents recent LHCb results on open heavy flavor production in $pp$, Pb, and PbPb collisions, highlighting how these measurements probe QCD medium transport properties, cold nuclear matter effects, and hadronization mechanisms across a unique energy range.
Using over 600,000 decays collected by the CMD-3 detector at the VEPP-2000 collider, researchers measured the neutral kaon mass to be 497.587 0.004 (stat.) 0.008 (syst.) 0.009 (calibr.) MeV/.
This paper presents the conceptual design and performance evaluation of the LHC, a feasible HL-LHC-based antimuon-proton collider utilizing ultra-cold beam technology to achieve 5.3 TeV center-of-mass energy and high luminosity for exploring QCD, Higgs physics, and beyond-Standard-Model phenomena.
Using 365 fb⁻¹ of data from the Belle II detector, the first search for the flavor-changing neutral-current decay was conducted via a sum-of-exclusives approach, yielding no significant signal and establishing an upper limit on the branching fraction of .
Using a 1.1 fb data sample from the LHCb Upgrade I detector collected in October 2024, this paper measures the normalised decay rate and angular coefficients of the process, demonstrating that the upgraded detector's response is sufficiently understood to reliably extract parameters for rare and transitions sensitive to physics beyond the Standard Model.
The paper introduces the Histogram AutoEncoder (HistoAE), an unsupervised deep learning model with a custom histogram-based loss that creates a physically interpretable latent space for silicon microstrip detectors, achieving high-precision charge and position measurements comparable to conventional methods while enabling fast detector simulations.