hep-ex 篇论文 | Gist.Science

肝外系统（Hep-Ex）研究聚焦于肝脏之外那些与肝脏功能紧密相连的复杂网络，涵盖从代谢调节到免疫反应的广泛领域。这里探讨的不仅是器官间的相互作用，更是理解全身健康如何受肝脏状态深远影响的关键窗口。

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以下是该分类下从 arXiv 精选的最新研究成果。

Coherent deeply virtual Compton scattering on helium-4 beyond leading power

本文通过分析包含关键运动学高阶扭度和次领头阶强耦合修正的相干深度虚康普顿散射数据，首次呈现了氦 -4 原子核的夸克 - 胶子层面层析图像。

Víctor Martínez-Fernández, B. Pire, P. Sznajder, J. Wagner2026-04-29⚛️ nucl-ex

Measurement of the Z $\to$ $\mu^+\mu^-$ angular coefficients in pp collisions at $\sqrt{s}$ = 13 TeV as functions of transverse momentum and rapidity

本文利用 CMS 实验的 140 fb $^{-1}$ 数据，对 13 TeV 质子 - 质子碰撞中 Drell-Yan $Z \to \mu^+\mu^-$ 过程的八个角极化系数（ $A_0$ 至 $A_7$ ）进行了测量，给出了横向动量和快度的双微分结果，并将其与次次领头阶 QCD 预言进行了比较。

CMS Collaboration2026-04-29⚛️ hep-ex

Sub-keV energy calibration of CONUS+ via 71Ge M-shell neutron activation

CONUS+ 合作组利用中子活化产生的 71Ge M 壳层 X 射线实现了亚 keV 能量刻度，证明该实验的信号预测不确定度可从 14% 降低至 4% 以下，并验证了其能量重建能力可延伸至探测阈值，从而为未来的精密测量奠定基础。

E. Sánchez García, Y. Shi, N. Ackermann, H. Bonet, C. Buck, J. Hakenmüller, G. Heusser, M. Lindner, W. Maneschg, M. Meier, S. Mertens, D. Piani, T. Rink, H. Strecker2026-04-29⚛️ hep-ex

$CP$ violation in singly Cabibbo suppressed $D\to \pi a_0(980)$ decays

本文提出，显著的长程再散射效应，特别是 $D\to K^*K\to a_0\pi$ 过程，解释了单卡比博压低 $D\to \pi a_0(980)$ 衰变中较大的实验分支比，并自然地预言了 $10^{-3}$ 量级的直接$CP $不对称性，从而确立了这些衰变作为探测$ CP$破坏的有前景的新途径。

Yu-Kuo Hsiao, Shu-Ting Cai, Yan-Li Wang2026-04-29⚛️ hep-ex

Explainable AI for Jet Tagging: A Comparative Study of GNNExplainer, GNNShap, and GradCAM for Jet Tagging in the Lund Jet Plane

本文评估并比较了为 Lund 喷注平面表示而调整的基于扰动、基于 Shapley 值以及基于梯度的可解释性方法，证明了这些技术成功地将神经网络预测与经典 QCD 可观测量相关联，并揭示了喷注标记中微扰与非微扰区域之间显著的焦点转移。

Pahal D. Patel, Sanmay Ganguly2026-04-29⚛️ hep-ex

Search for light pseudoscalar boson pairs produced from Higgs boson decays using the 4 $\tau$ and 2 $\mu$ 2 $\tau$ final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV

这项研究利用CMS实验在13 TeV质心能量下采集的138 fb⁻¹数据，通过分析4 $\tau$ 和2 $\mu$ 2 $\tau$ 末态，对125 GeV希格斯玻色子衰变为一对轻伪标量玻色子（ $a_1$ ）的过程进行了搜索，在未发现超出标准模型预期信号的情况下，对该衰变分支比及相关理论模型（如2HD+S模型）设定了95%置信水平的上限约束。

CMS Collaboration2026-04-28⚛️ hep-ex

hep-ex

Coherent deeply virtual Compton scattering on helium-4 beyond leading power

Measurement of the Z $\to$ $\mu^+\mu^-$ angular coefficients in pp collisions at $\sqrt{s}$ = 13 TeV as functions of transverse momentum and rapidity

Sub-keV energy calibration of CONUS+ via 71Ge M-shell neutron activation

$CP$ violation in singly Cabibbo suppressed $D\to \pi a_0(980)$ decays

Explainable AI for Jet Tagging: A Comparative Study of GNNExplainer, GNNShap, and GradCAM for Jet Tagging in the Lund Jet Plane

Search for light pseudoscalar boson pairs produced from Higgs boson decays using the 4 $\tau$ and 2 $\mu$ 2 $\tau$ final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV

Temperature Dependence of Gain and Time Resolution in LGAD Detectors

Measurement of D $^0$ meson photoproduction in ultraperipheral heavy ion collisions

Jet fragmentation function and groomed substructure of bottom quark jets in proton-proton collisions at 5.02 TeV

Hamiltonian formulation of the $1+1$ -dimensional $ϕ^4$ theory in a momentum-space Daubechies wavelet basis

hep-ex

Coherent deeply virtual Compton scattering on helium-4 beyond leading power

Measurement of the Z →\to→ μ+μ−\mu^+\mu^-μ+μ− angular coefficients in pp collisions at s\sqrt{s}s​ = 13 TeV as functions of transverse momentum and rapidity

Sub-keV energy calibration of CONUS+ via 71Ge M-shell neutron activation

$CP$ violation in singly Cabibbo suppressed D→πa0(980)D\to \pi a_0(980)D→πa0​(980) decays

Explainable AI for Jet Tagging: A Comparative Study of GNNExplainer, GNNShap, and GradCAM for Jet Tagging in the Lund Jet Plane

Search for light pseudoscalar boson pairs produced from Higgs boson decays using the 4τ\tauτ and 2μ\muμ2τ\tauτ final states in proton-proton collisions at s\sqrt{s}s​ = 13 TeV

Temperature Dependence of Gain and Time Resolution in LGAD Detectors

Measurement of D0^00 meson photoproduction in ultraperipheral heavy ion collisions

Jet fragmentation function and groomed substructure of bottom quark jets in proton-proton collisions at 5.02 TeV

Hamiltonian formulation of the 1+11+11+1-dimensional ϕ4ϕ^4ϕ4 theory in a momentum-space Daubechies wavelet basis

Measurement of the Z $\to$ $\mu^+\mu^-$ angular coefficients in pp collisions at $\sqrt{s}$ = 13 TeV as functions of transverse momentum and rapidity

$CP$ violation in singly Cabibbo suppressed $D\to \pi a_0(980)$ decays

Search for light pseudoscalar boson pairs produced from Higgs boson decays using the 4 $\tau$ and 2 $\mu$ 2 $\tau$ final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV

Measurement of D $^0$ meson photoproduction in ultraperipheral heavy ion collisions

Hamiltonian formulation of the $1+1$ -dimensional $ϕ^4$ theory in a momentum-space Daubechies wavelet basis