hep-ex papers | Gist.Science

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.

Towards foundation-style models for energy-frontier heterogeneous neutrino detectors via self-supervised pre-training

This paper proposes a self-supervised sparse ViT framework that leverages masked autoencoding and relational objectives to learn reusable representations from heterogeneous neutrino detector data, significantly improving reconstruction performance and data efficiency for energy-frontier experiments like FASERCal while demonstrating strong transferability across diverse detector technologies.

Saúl Alonso-Monsalve, Fabio Cufino, Umut Kose, Anna Mascellani, André Rubbia2026-04-09⚛️ hep-ex

Measurement of Inclusive Charged-Current $\bar{\nu}_{\mu}$ Scattering on C, CH, Fe, and Pb at $\langle E_{\bar{\nu}}\rangle \sim$ 6 GeV with MINERvA

The MINERvA collaboration reports the first measurement of inclusive charged-current $\bar{\nu}_\mu$ cross sections on carbon, hydrocarbon, iron, and lead at a mean energy of $\sim 6$ GeV, revealing significant discrepancies between experimental data and current neutrino interaction models, particularly regarding nuclear effects at low antimuon transverse momentum.

A. Klustová, S. Akhter, Z. Ahmad Dar, M. Sajjad Athar, G. Caceres, H. da Motta, J. Felix, P. K. Gaur, R. Gran, E. Granados, D. A. Harris, A. L. Hart, J. Kleykamp, M. Kordosky, D. Last, A. Lozano, S. M (…)2026-04-09⚛️ hep-ex

QED radiative corrections in inverse beta decay from virtual pions

This paper evaluates pion-induced QED radiative corrections to the inverse beta decay cross section using heavy baryon chiral perturbation theory, demonstrating that these effects are small enough to enable sub-permille theoretical precision for antineutrino energies above 10 MeV.

Oleksandr Tomalak2026-04-09⚛️ nucl-ex

Recent ALICE results from light-ion collision systems

This paper presents recent ALICE measurements from July 2025 LHC runs involving proton-oxygen, oxygen-oxygen, and neon-neon collisions, detailing charged-particle pseudorapidity densities, flow coefficients, and neutral pion suppression to advance the understanding of particle production and collective phenomena in small collision systems.

Abhi Modak (on behalf of the ALICE Collaboration)2026-04-09⚛️ nucl-ex

Two-neutrino $ββ$ decay to excited states at next-to-leading order

This paper calculates next-to-leading order nuclear matrix elements for two-neutrino double-beta decay to excited states in key isotopes using the nuclear shell model, finding that while NLO corrections are typically small, they can become significant due to leading-order cancellations, and that nuclear deformation and seniority structure critically influence the predicted half-lives.

Daniel Castillo, Dorian Frycz, Beatriz Benavente, Javier Menéndez2026-04-08⚛️ nucl-ex

$b \to c$ semileptonic sum rule: SU(3) $_{\rm{F}}$ symmetry violation

This paper extends the $b \to c$ semileptonic sum rule to include strange baryon and meson decays, quantifies the impact of SU(3) $_{\rm{F}}$ symmetry breaking to confirm it remains within experimental uncertainties, and proposes new predictive sum rules to rigorously test the consistency of $b \to c$ processes.

Syuhei Iguro2026-04-08⚛️ hep-ph

Measurement of charged-particle production in $\sqrt{s_\text{NN}}=9.62$ 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 $\sqrt{s_\text{NN}}=9.62$ 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 $\gamma$ in $B^{\pm} \rightarrow D(\rightarrow K^{0}_{\rm S} h^{\prime+}h^{\prime-})h^{\pm}$ decays with a novel approach

This paper presents the most precise single measurement of the CKM angle $\gamma$ to date, determining it to be $(71.3\pm 5.0)^{\circ}$ 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 $\gamma$ with a novel approach

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

Reactor Antineutrino Oscillations and Geoneutrinos in SNO+

Using 685 days of data collected between May 2022 and July 2025, the SNO+ experiment achieved a precise measurement of the neutrino oscillation parameter $\Delta m^2_{21}$ consistent with other long-baseline experiments and reported the first geoneutrino flux measurement in the Western Hemisphere.

William Parker2026-04-08⚛️ hep-ex

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hep-ex

Towards foundation-style models for energy-frontier heterogeneous neutrino detectors via self-supervised pre-training

Measurement of Inclusive Charged-Current νˉμ\bar{\nu}_{\mu}νˉμ​ Scattering on C, CH, Fe, and Pb at ⟨Eνˉ⟩∼\langle E_{\bar{\nu}}\rangle \sim⟨Eνˉ​⟩∼ 6 GeV with MINERvA

QED radiative corrections in inverse beta decay from virtual pions

Recent ALICE results from light-ion collision systems

Two-neutrino ββββββ decay to excited states at next-to-leading order

b→cb \to cb→c semileptonic sum rule: SU(3)F_{\rm{F}}F​ symmetry violation

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

Measurement of the CKM angle γ\gammaγ in B±→D(→KS0h′+h′−)h±B^{\pm} \rightarrow D(\rightarrow K^{0}_{\rm S} h^{\prime+}h^{\prime-})h^{\pm}B±→D(→KS0​h′+h′−)h± decays with a novel approach