⚛️ Category

hep-ex

2517 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

Improved analysis of non-resonant Higgs boson pair production in the bbˉτ+τ−b\bar{b}\tau^+\tau^- final state with $196$ fb−1^{-1} of data collected at s\sqrt{s} = 13 TeV and 13.6 TeV with the ATLAS detector

Using an updated dataset of 196 fb⁻¹ collected at 13 TeV and 13.6 TeV, the ATLAS collaboration reports a non-resonant Higgs boson pair production cross-section consistent with Standard Model expectations and derives new constraints on the Higgs self-coupling modifier, while also validating the analysis strategy through measurements of ZH and ZZ processes.

ATLAS Collaboration2026-07-30
⚛️ high-energy experiments

Deep-learning jet flavor tagging for precision hadronic Higgs measurements at future e+e−e^+e^- Higgs factories

This paper demonstrates that employing state-of-the-art deep-learning jet flavor taggers combined with XGBoost classifiers at a future e+e−e^+e^- Higgs factory operating at 240 GeV with 20 ab−1^{-1} luminosity significantly improves the precision of measuring Higgs decays to ccˉc\bar{c} and $gg$ while enabling the first quantitative sensitivity estimate for the challenging H→ssˉH\to s\bar{s} channel.

Xinzhu Wang, Yifan Zhu, Chunxiang Zhu, Jianfeng Jiang, Manqi Ruan, Kun Wang, Haijun Yang, Yongfeng Zhu2026-07-29
⚛️ high-energy experiments

Gedanken Experiments of Entanglement in Particle Physics: Interactions, Operators and Bell Inequalities in Flavor Space

This paper proposes using Bell-type inequalities as operator-level diagnostics in collider experiments to demonstrate that fundamental Standard Model interactions, when treated as measurement settings for entangled particle pairs, generate non-contextual correlations that violate local realism through their inherent algebraic structure.

Corbin Pacheco (Wayne State University), Nausheen R. Shah (Wayne State University)2026-07-29
⚛️ high-energy experiments

Information-theoretic astrophysical uncertainties in the effective theory of dark matter direct detection

This paper quantifies how astrophysical uncertainties in the dark matter velocity distribution impact direct detection rates across all non-relativistic effective field theory operators by employing Kullback-Leibler divergence to reveal that uncertainties can vary from less than one order of magnitude to as much as three orders of magnitude, depending on the specific operator's dependence on velocity-weighted moments.

Gonzalo Herrera2026-07-29
🔬 physics

Demonstration of 255-kV high-voltage generation with a Cavallo multiplier system

This paper reports a room-temperature demonstration of a Cavallo electrostatic multiplier system that successfully generated approximately 255 kV from a 25 kV input in SF6_6 gas, validating its potential as a viable low-current, in situ high-voltage source for cryogenic precision measurements while highlighting electrode surface preparation and alignment as critical factors for future reliability.

S. M. Clayton, T. M. Ito, A. Jacobs, A-T. Le, M. F. Makela, C. M. O'Shaughnessy, N. S. Phan, E. Renner, T. A. Sandborn (…)2026-07-29
⚛️ phenomenology

Coherence from interference: a solvable model of sub-GeV dark matter-nucleus scattering

This paper employs an exactly solvable 1D crystal lattice model to demonstrate that the transition from coherent to incoherent dark matter-nucleus scattering is governed by the diminishing importance of crystal momentum conservation as multiphonon production increases, thereby validating the use of incoherent approximations for sub-GeV dark matter detection in realistic 3D crystals.

Lynn Lin, Tongyan Lin, Momei Fang2026-07-29