⚛️ Category

hep-ex

2551 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.

⚛️ high-energy experiments

Global Ab initio Neutrino Mass Limits from Neutrinoless Double-Beta Decay

This paper presents global Bayesian limits on Majorana neutrino masses by combining latest neutrinoless double-beta decay experimental data with ab initio nuclear matrix elements, revealing that current experiments likely lack the sensitivity to probe the neutrino mass regime allowed by oscillation data while demonstrating that next-generation searches across four key isotopes could collectively cover the inverted mass ordering.

T. Shickele, L. Jokiniemi, A. Belley, J. D. Holt2026-06-09
⚛️ high-energy experiments

Search for new physics using single-lepton events with high multiplicities of jets and b jets in proton-proton collisions at s\sqrt{s} = 13 TeV

Using 138 fb−1^{-1} of 13 TeV proton-proton collision data from the CMS detector, this study searches for RR-parity violating supersymmetry in single-lepton events with high jet and b-jet multiplicities by analyzing large-radius jet masses, finding no significant excess and excluding gluino masses below 1890 GeV at 95% confidence level.

CMS Collaboration2026-06-09
⚛️ phenomenology

"Niñas Atómicas" (Atomic Girls): An initiative that generates opportunities for young girls in STEM

This paper presents "Niñas Atómicas," a Chilean workshop initiative that empowers high school girls to develop critical thinking and scientific skills by building muon detectors under the mentorship of female scientists, while sharing the program's methodology, experimental results, and participant experiences to advance physics education and outreach.

Giovanna Cottin, Francisca Garay2026-06-08
⚛️ nuclear theory

Jet quenching in out-of-equilibrium QCD matter

This paper presents the first study of jet substructure modifications during the bottom-up evolution of out-of-equilibrium QCD matter, demonstrating that the early stages of bulk matter evolution in heavy-ion collisions leave a sizable imprint on jet radiation patterns and establishing a foundation for incorporating pre-equilibrium dynamics into realistic jet quenching models.

João Barata, Kirill Boguslavski, Florian Lindenbauer, Andrey V. Sadofyev2026-06-08
⚛️ lattice

Electromagnetic form factors: A window into the DΛcD\Lambda_c, D∗ΛcD^*\Lambda_c, and DΛc∗D\Lambda_c^* molecular structure

This paper utilizes QCD light-cone sum rules to calculate the magnetic dipole, electric quadrupole, and magnetic octupole moments of DΛcD\Lambda_c, D∗ΛcD^*\Lambda_c, and DΛc∗D\Lambda_c^* molecular pentaquarks, establishing a hierarchy of magnetic moments and spatial deformation signatures that serve as critical benchmarks for distinguishing their molecular structure from compact exotic hadron models.

Ulaş Özdem2026-06-08
⚛️ nuclear experiments

Hyperon-Nucleon Spectrometer

This whitepaper proposes the Hyperon-Nucleon Spectrometer (H-NS) at the High-Intensity heavy-ion Accelerator Facility (HIAF) to systematically investigate the unresolved Λ\Lambda polarization puzzle through high-precision measurements of hyperon and proton spin observables across a wide range of collision energies and systems.

Xiaozhi Bai, Xu Cao, Zhe Cao, Jinhui Chen, Kai Chen, Qibo Chen, Shi Chen, Xin Chen, Yuquan Chen, Zhenyu Chen, Jianping D (…)2026-06-08
⚛️ phenomenology

Current and future constraints on heavy New Physics from τ\tau weak dipole moments

This paper presents updated Standard Model predictions and comprehensive constraints on the τ\tau lepton's weak dipole moments using current data from the LHC and ZZ-pole observables, while projecting that future FCC-$ee$ and HL-LHC experiments will significantly enhance sensitivity to heavy New Physics, potentially making these moments the dominant probes for such operators.

Nejc Košnik, Zachary Polonsky, Aleks Smolkovič2026-06-08
⚛️ nuclear experiments

Feasibility Study of Pion and Kaon Structure via the Sullivan Process at EicC

This study presents detailed projections demonstrating that the Electron-Ion Collider in China (EicC) can precisely measure pion and kaon structure functions via the Sullivan process with statistical uncertainties below 5% and 8%, respectively, thereby significantly advancing our understanding of meson parton distributions and bridging the gap between fixed-target and collider-era measurements.

Zongyang Lu, Zihan Yu, Ting Lin, Yu-Tie Liang, Rong Wang, Wan Chang, Weizhi Xiong2026-06-05