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.

Iterative HOMER with uncertainties

This paper introduces iHOMER, an iterative method combining Bayesian neural networks and uncertainty-aware regression to extract well-calibrated Lund fragmentation functions from experimental data by systematically addressing latent phase space biases and quantifying uncertainties.

Anja Butter, Ayodele Ore, Sofia Palacios Schweitzer, Tilman Plehn, Benoît Assi, Christian Bierlich, Philip Ilten, Tony Menzo, Stephen Mrenna, Manuel Szewc, Michael K. Wilkinson, Ahmed Youssef, Jure Zu (…)2026-03-06⚛️ hep-ph

Constraints on new physics from decays of polarized Λb0Λ_b^0 baryons at the FCC-ee

This paper demonstrates that utilizing the unique polarization of Λb0\Lambda_b^0 baryons produced in Z0Z^0 decays at the FCC-ee, despite comparable statistical sensitivity to LHCb Upgrade II for individual observables, significantly improves constraints on the Wilson coefficients C9()C_{9^{(\prime)}} and C10()C_{10^{(\prime)}} through a broader set of accessible angular observables.

Anja Beck, Mero Elmarassy, Asher Sabbagh, Michal Kreps, Eluned Smith2026-03-06🔬 physics

The BUTTON-30 detector at Boulby

This paper describes the design and construction of the BUTTON-30, a 30-tonne hybrid detector installed 1.1 km underground at the Boulby Laboratory to evaluate the potential of simultaneous Cherenkov and scintillation light detection for neutrino interactions in a low-background environment.

J. Bae, M. Bergevin, E. P. Bernard, D. S. Bhattacharya, J. Boissevain, S. Boyd, K. Bridges, L. Capponi, J. Coleman, D. Costanzo, T. Cunniffe, S. A. Dazeley, M. V. Diwan, S. R. Durham, E. Ellingwood, A (…)2026-03-06🔬 physics

Characterization of the ionization response of argon to nuclear recoils at the keV scale with the ReD experiment

The ReD experiment utilized a compact dual-phase argon Time Projection Chamber irradiated by neutrons to model-independently measure the ionization yield of argon for nuclear recoils between 2 and 10 keV, revealing higher yields at lower energies than previously observed and extending experimental coverage crucial for detecting low-mass Dark Matter.

P. Agnes, I. Ahmad, S. Albergo, I. Albuquerque, M. Atzori Corona, M. Ave, B. Bottino, M. Cadeddu, A. Caminata, N. Canci, M. Caravati, L. Consiglio, S. Davini, L. K. S. Dias, G. Dolganov, G. Fiorillo (…)2026-03-06🔭 astro-ph

Measurements of differential charged-current cross sections on argon for electron neutrinos with final-state protons in MicroBooNE

The MicroBooNE collaboration presents the first single-differential electron-neutrino charged-current cross-section measurements on argon with final-state protons, reporting a total cross section of [4.1±0.3 (stat.)±1.1 (syst.)]×1039cm2/nucleon[4.1 \pm 0.3 \text{ (stat.)} \pm 1.1 \text{ (syst.)}] \times 10^{-39} \mathrm{cm}^{2}/\mathrm{nucleon} that shows good agreement with standard neutrino event generator predictions.

MicroBooNE collaboration, P. Abratenko, D. Andrade Aldana, L. Arellano, J. Asaadi, A. Ashkenazi, S. Balasubramanian, B. Baller, A. Barnard, G. Barr, D. Barrow, J. Barrow, V. Basque, J. Bateman, B. Beh (…)2026-03-06🔬 physics

First measurement of the strong interaction scattering parameters for the Kd\mathbf{K^-d} and K+d\mathbf{K^+d} systems

This paper presents the first experimental measurement of the strong interaction scattering parameters for the Kd\rm K^-d and K+d\rm K^+d systems using femtoscopic correlation functions from Pb--Pb collisions at sNN=5.02\sqrt{s_{\rm NN}}=5.02 TeV recorded by ALICE, providing crucial benchmarks for low-energy chiral QCD dynamics.

ALICE Collaboration2026-03-06🔬 physics

Measurement of the e+eπ+ππ0e^+e^-\toπ^+π^-π^0 cross section in the energy region from 0.56 to 1.1 GeV with the SND detector

Using data collected by the SND detector at the VEPP-2000 collider, this paper presents a precise measurement of the e+eπ+ππ0e^+e^-\to\pi^+\pi^-\pi^0 cross section in the 0.56–1.1 GeV energy range, yielding improved resonance parameters and a refined calculation of the leading-order hadronic contribution to the muon magnetic anomaly.

SND Collaboration, M. N. Achasov, A. E. Alizzi, A. Yu. Barnyakov, K. I. Beloborodov, A. V. Berdyugin, D. E. Berkaev, A. G. Bogdanchikov, A. A. Botov, V. S. Denisov, T. V. Dimova, V. P. Druzhinin, R. A (…)2026-03-06🔬 physics