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.

⚛️ high-energy experiments

Passage of particles through matter and the effective straggling-function: High-fidelity accelerated simulation via Physics-Informed Machine Learning

The paper introduces PHIN-GAN, a physics-informed generative adversarial network that utilizes analytical probability density functions of the Landau straggling function to provide high-fidelity, scalable, and computationally efficient simulations of particle-matter interactions compared to traditional methods like GEANT4.

Oleksandr Borysov, Rotem Dover, Eilam Gross, Nilotpal Kakati, Noam Tal Hod2026-04-28

⚛️ high-energy experiments

Incorporating Inelasticity Reconstruction into Neutrino Mass Ordering Studies with IceCube

This paper proposes using new machine-learning-based inelasticity reconstruction algorithms to statistically separate neutrinos from antineutrinos, thereby enhancing the sensitivity of IceCube and IceCube Upgrade detectors to the neutrino mass ordering.

J. H. Peterson (for the IceCube Collaboration), M. Jacquart (for the IceCube Collaboration)2026-04-28

⚛️ nuclear theory

On the Cancellation of Nuclear Effects in the Valence Region

An analysis of global deep-inelastic scattering data reveals that nuclear modifications to nucleon structure functions remarkably cancel out in the valence quark region ( $0.25 \leq x \leq 0.35$ ), resulting in an isoscalar cross-section ratio near unity across all nuclei.

S. A. Kulagin, R. Petti2026-04-28

⚛️ high-energy experiments

Search for heavy resonances decaying into two Higgs bosons in the $\mathrm{b}\bar{\mathrm{b}}\,\tau^{+}\tau^{-}$ final state in proton-proton collisions at $\sqrt{s}=13~\text{TeV}$ with the CMS detector

Using $138\text{ fb}^{-1}$ of CMS data collected at $\sqrt{s}=13\text{ TeV}$ , this study searches for heavy narrow-width resonances decaying into two Higgs bosons via the $\mathrm{b}\bar{\mathrm{b}}\,\tau^{+}\tau^{-}$ final state, finding no significant excess and setting the most sensitive LHC limits to date for masses between $1.4$ and $4.5\text{ TeV}$ .

Ganesh Parida (on behalf of the CMS collaboration)2026-04-28

⚛️ lattice

Three regimes/phases of QCD at high T, their symmetries and N_c scaling

This paper reviews the QCD phase diagram at small chemical potentials, identifying three distinct regimes—the hadron gas, a "stringy fluid," and the quark-gluon plasma—which are differentiated by their symmetries, degrees of freedom, and $N_c$ scaling.

L. Ya. Glozman2026-04-28

⚛️ high-energy experiments

Charm decays and $\tau$ physics at Belle and Belle II

This paper presents recent results from the Belle and Belle II experiments regarding charm baryon decays and $\tau$ physics, with a specific focus on new studies of lepton-flavor violation and the first reported search for CP violation in $\tau \to \pi K_{S} \nu_{\tau}$ decays.

Michele Mantovano2026-04-28

⚛️ high-energy experiments

Initial Performance of the E320 Tracker

This paper demonstrates the successful initial performance of a prototype five-layer ALPIDE-based tracking detector at the SLAC FACET-II facility, which successfully measured positron signal rates using Bremsstrahlung conversion as a proxy for the nonlinear Breit-Wheeler process, even under extreme background hit densities.

Oleksandr Borysov, Sébastien Corde, Gal Evenzur, Alexander Knetsch, Alon Levi, Sebastian Meuren, Nathaly Nofech-Mozes, I (…)2026-04-28

⚛️ high-energy experiments

Development and Performance Study of Vertical GaN $\alpha$ -Particle Detector with High Energy Resolution

This study develops a vertical homoepitaxial GaN $\alpha$ -particle detector featuring an ultrathin dead layer and guard-ring structure that achieves high energy resolution, while using Geant4 simulations to identify depletion-width nonuniformity as the primary cause of the low-energy tail phenomenon.

Minjie Ye, Yuzi Yang, Jiangtao Wei, Weilong Qin, Hao Hong, Dong Han, Jianping Ni, Zhiyi Liu, Po-Chung Huang, Cheng-Chang (…)2026-04-28

⚛️ high-energy experiments

Design of the DUNE horizontal drift far detector charge readout electronics and performance in ProtoDUNE-HD

This paper describes the design of the custom cryogenic charge readout electronics for the DUNE horizontal drift far detector and presents their performance results based on data from the ProtoDUNE-HD prototype operated at CERN.

DUNE Collaboration, S. Abbaslu, F. Abd Alrahman, A. Abed Abud, R. Acciarri, L. P. Accorsi, M. A. Acero, M. R. Adames, G. (…)2026-04-28

⚛️ phenomenology

Probing the electron Yukawa coupling via resonant Higgs boson production at FCC-ee via $e^+e^- \to H \to WW^*$ in lepton-plus-jets final states

This study demonstrates that searching for resonant Higgs boson production via the $e^+e^- \to H \to WW^*$ process at the FCC-ee can achieve a 95% confidence level upper limit on the electron Yukawa coupling modifier of $\kappa_e \lesssim 1.35$ , providing the most stringent constraint to date in simulation-based studies.

Apranik Fatehi, Reza Jafari Seyedabad, Amir Amiri, Kazem Azizi, David d'Enterria, Louis Portales, Michele Selvaggi2026-04-28

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hep-ex

Passage of particles through matter and the effective straggling-function: High-fidelity accelerated simulation via Physics-Informed Machine Learning

Incorporating Inelasticity Reconstruction into Neutrino Mass Ordering Studies with IceCube

On the Cancellation of Nuclear Effects in the Valence Region

Search for heavy resonances decaying into two Higgs bosons in the bbˉ τ+τ−\mathrm{b}\bar{\mathrm{b}}\,\tau^{+}\tau^{-}bbˉτ+τ− final state in proton-proton collisions at s=13 TeV\sqrt{s}=13~\text{TeV}s​=13 TeV with the CMS detector

Three regimes/phases of QCD at high T, their symmetries and N_c scaling

Charm decays and τ\tauτ physics at Belle and Belle II

Initial Performance of the E320 Tracker

Development and Performance Study of Vertical GaN α\alphaα-Particle Detector with High Energy Resolution

Design of the DUNE horizontal drift far detector charge readout electronics and performance in ProtoDUNE-HD

Probing the electron Yukawa coupling via resonant Higgs boson production at FCC-ee via e+e−→H→WW∗e^+e^- \to H \to WW^*e+e−→H→WW∗ in lepton-plus-jets final states

Search for heavy resonances decaying into two Higgs bosons in the $\mathrm{b}\bar{\mathrm{b}}\,\tau^{+}\tau^{-}$ final state in proton-proton collisions at $\sqrt{s}=13~\text{TeV}$ with the CMS detector

Charm decays and $\tau$ physics at Belle and Belle II

Development and Performance Study of Vertical GaN $\alpha$ -Particle Detector with High Energy Resolution

Probing the electron Yukawa coupling via resonant Higgs boson production at FCC-ee via $e^+e^- \to H \to WW^*$ in lepton-plus-jets final states