⚛️ Category

hep-ex

2585 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.

⚛️ nuclear experiments

Exclusive dimuon production and coherent charmonium photoproduction at forward rapidity in ultra-peripheral Pb$-$Pb collisions at sNN=5.36\mathbf{\sqrt{s_{\rm NN}}=5.36} TeV

Using 2023 ALICE data from ultra-peripheral Pb–Pb collisions at sNN=5.36\sqrt{s_{\rm NN}}=5.36 TeV, this paper presents forward rapidity measurements of coherent J/ψ\psi and ψ\psi(2S) photoproduction and exclusive dimuon production, revealing significant nuclear shadowing effects in quarkonium production and highlighting the sensitivity of dimuon measurements to photon flux modeling near the nuclear radius.

ALICE Collaboration2026-05-14
⚛️ high-energy experiments

Search for pair production of additional neutral scalars within the Inert Doublet Model in a final state with two electrons or two muons in proton-proton collisions at s\sqrt{s} = 13 TeV and 13.6 TeV

Using proton-proton collision data at 13 and 13.6 TeV collected by the CMS detector, this study performs the first dedicated search for pair-produced inert scalars in the Inert Doublet Model via a dilepton plus missing transverse momentum final state, finding no significant excess and setting 95% confidence level exclusion limits on the masses of the new neutral scalars.

CMS Collaboration2026-05-14
⚛️ high-energy experiments

Search for single vector-like quark production in opposite-sign dilepton final states in proton-proton collisions at s\sqrt{s} = 13 TeV

The CMS collaboration presents the first search for single vector-like top quark (T) production decaying into a top quark and Higgs boson in opposite-sign dilepton final states using 138 fb⁻¹ of 13 TeV proton-proton collision data, finding no evidence of new physics and setting 95% confidence level upper limits on the production cross section ranging from 2.0 pb at 600 GeV to 0.1 pb at 1000 GeV.

CMS Collaboration2026-05-14
⚛️ lattice

Mass of the dark antibaryon using Bd→ΛψDSB_d\rightarrow \Lambda \psi_{DS} channel in light cone QCD

This paper utilizes Light Cone Sum Rules with twist-6 contributions to calculate the branching fraction of the Bd→ΛψDSB_d\rightarrow\Lambda \psi_{DS} decay, thereby determining the allowed mass range for the dark antibaryon ψDS\psi_{DS} consistent with BB-mesogenesis constraints from BaBar and Belle experimental data.

M. A. Abri, N. Hajirasouliha, K. Azizi2026-05-14
⚛️ high-energy experiments

Inpainting over the cracks: challenges of applying pre-merger searches for massive black hole binaries to realistic LISA datasets

This paper demonstrates that both zero-latency filtering and a novel "inpainting" technique can successfully identify massive black hole binary mergers in realistic LISA datasets, even in the presence of data gaps and overlapping signals, thereby enabling critical pre-merger sky localization for multi-messenger observations.

Gareth Cabourn Davies, Ian Harry2026-05-14
⚛️ high-energy experiments

Application of exhaustive simulation flow for advanced performance prediction of monolithic active pixel sensors

This paper presents an exhaustive simulation flow that integrates TCAD, Allpix Squared, and SPICE to accurately predict the performance of monolithic active pixel sensors (MAPS), including leakage currents and irradiation effects, and validates this methodology against measurements from the Belle II TJ-Monopix2 sensor.

E. Sacchetti, M. Babeluk, T. Bergauer, M. Friedl, C. Irmler, B. Pilsl, R. Russo, C. Schwanda, L. Gaioni, V. Re, E. Ricep (…)2026-05-14
⚛️ high-energy experiments

Search for charginos and neutralinos with B−LB-L RR-parity violating decays in s=13\sqrt{s}=13 TeV and $13.6TeV TeV pp$ collisions with the ATLAS detector

The ATLAS experiment analyzed 140 fb−1^{-1} of 13 TeV and 56 fb−1^{-1} of 13.6 TeV proton-proton collision data to search for charginos and neutralinos decaying via B−LB-L RR-parity-violating couplings into Higgs bosons and leptons, finding no evidence of new physics and setting 95% confidence level exclusion limits on chargino and neutralino masses up to 1100 GeV.

ATLAS Collaboration2026-05-14