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.

Measurement of charged-particle production in sNN=9.62\sqrt{s_\text{NN}}=9.62 TeV proton-oxygen collisions as a probe of cosmic-ray air showers with the ATLAS detector

Using the ATLAS detector, this study presents a high-precision measurement of prompt charged-particle production in proton-oxygen collisions at sNN=9.62\sqrt{s_\text{NN}}=9.62 TeV, providing data that significantly improves the modeling of cosmic-ray air showers for astroparticle physics.

ATLAS Collaboration2026-04-08⚛️ hep-ex

Measurement of the CKM angle γ\gamma in B±D(KS0h+h)h±B^{\pm} \rightarrow D(\rightarrow K^{0}_{\rm S} h^{\prime+}h^{\prime-})h^{\pm} decays with a novel approach

This paper presents the most precise single measurement of the CKM angle γ\gamma to date, determining it to be (71.3±5.0)(71.3\pm 5.0)^{\circ} by applying a novel, model-independent approach that simultaneously analyzes joint datasets from the BESIII and LHCb experiments.

The BESIII, LHCb Collaborations, :, M. Ablikim, M. N. Achasov, P. Adlarson, X. C. Ai, C. S. Akondi, R. Aliberti, A. Amoroso, Q. An, Y. H. An, Y. Bai, O. Bakina, H. R. Bao, X. L. Bao, M. Barbagiovanni (…)2026-04-08⚛️ hep-ex

Precise measurement of the CKM angle γ\gamma with a novel approach

This paper presents the most precise measurement of the CKM angle γ\gamma to date, yielding a value of (71.3±5.0)(71.3\pm 5.0)^{\circ} by performing a joint, model-independent analysis of quantum-correlated DD meson data from BESIII and B±B^{\pm} decay data from LHCb.

The BESIII, LHCb Collaborations, :, M. Ablikim, M. N. Achasov, P. Adlarson, X. C. Ai, C. S. Akondi, R. Aliberti, A. Amoroso, Q. An, Y. H. An, Y. Bai, O. Bakina, H. R. Bao, X. L. Bao, M. Barbagiovanni (…)2026-04-08⚛️ hep-ex

Observation of nuclear suppression in coherent Υ\Upsilon(1S) photoproduction off heavy nuclei at the LHC

The CMS experiment at the LHC reports the first observation of nuclear suppression in coherent Υ\Upsilon(1S) photoproduction off heavy nuclei, measuring a nuclear gluon suppression factor of RgPb0.55R_\text{g}^\text{Pb} \approx 0.55 at a high energy scale of μ2=22.4\mu^2 = 22.4 GeV2^2 and x103x \approx 10^{-3}.

CMS Collaboration2026-04-08⚛️ nucl-ex

A Data-Driven Fast Simulation Approach for MAPS-based Detectors and their Optimization

This paper presents a fast, data-driven parametric simulation tool for pixel sensors that bypasses the need for proprietary manufacturing details by using measurement inputs, demonstrating its efficiency and validation on the MALTA2 sensor to guide performance optimizations for the upcoming MALTA3 redesign.

Dumitru Vlad Berlea, Lucian Fasselt, Prafulla Behera, Daniela Bortoletto, Craig Buttar, Theertha Chembakan, Valerio Dao, Ganapati Dash, Sebastian Haberl, Tomohiro Inada, Fuat Kerem Isik, Cigdem Isseve (…)2026-04-08⚛️ hep-ex

Search for soft unclustered energy patterns produced in association with a W or Z boson in proton-proton collisions at s\sqrt{s} = 13 TeV

This paper presents a search for a Higgs boson decaying into soft unclustered energy patterns (SUEP) produced in association with a W or Z boson using 138 fb1^{-1} of 13 TeV proton-proton collision data, finding no significant excess over the Standard Model background and setting limits on the production cross section.

CMS Collaboration2026-04-08⚛️ hep-ex

Probing the Solar 8^8B Neutrino Fog with XENONnT

The XENONnT experiment reports a 3.3σ\sigma measurement of coherent elastic neutrino-nucleus scattering from solar 8^8B neutrinos, which establishes a "neutrino fog" background that limits light dark matter detection sensitivity while also enabling constraints on the weak mixing angle and physics beyond the Standard Model.

E. Aprile, J. Aalbers, K. Abe, M. M. Abu Rmeileh, M. Adrover, S. Ahmed Maouloud, L. Althueser, B. Andrieu, E. Angelino, D. Antón Martin, S. R. Armbruster, F. Arneodo, L. Baudis, M. Bazyk, V. Beligotti (…)2026-04-08⚛️ hep-ex