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High-energy backward ($u$-channel) reactions can involve very large momentum transfers to the target baryons, shifting them by many units of rapidity. These reactions are difficult to understand in conventional models in which baryon number…

高能物理 - 唯象学 · 物理学 2023-08-22 Zachary Sweger , Spencer R. Klein , Yuanjing Ji , Minjung Kim , Saeahram Yoo , Ziyuan Zeng , Daniel Cebra , Xin Dong

Effective field theories (EFTs) of heavy particles coupled to the inflaton are rife with operator redundancies, frequently obscured by sensitivity to both boundary terms and field redefinitions. We initiate a systematic study of these…

高能物理 - 唯象学 · 物理学 2025-08-08 Nathaniel Craig , Soubhik Kumar , Amara McCune

Next-generation neutrino oscillation experiments such as DUNE require percent-level knowledge of neutrino--nucleon interaction cross sections. The nucleon axial form factor $F_A(Q^2)$, parameterized by the axial mass $\MA$, is the dominant…

高能物理 - 唯象学 · 物理学 2026-03-03 Guang Yang , Praveen Kumar

Effective Field Theory (EFT) extensions of the Standard Model are tools to compute observables $\big(e.g.$ cross sections with partonic center-of-mass energy $\sqrt{\hat{s}}\,\big)$ as a systematically improvable expansion suppressed by a…

高能物理 - 唯象学 · 物理学 2022-06-07 Timothy Cohen , Joel Doss , Xiaochuan Lu

We provide an assessment of the energy dependence of key measurements within the scope of the machine parameters for a U.S. based Electron-Ion Collider (EIC) outlined in the EIC White Paper. We first examine the importance of the physics…

In this paper, we propose to test quantum entanglement and Bell nonlocality at an Electron-Ion Collider (EIC). By computing the spin correlations in quark-antiquark pairs produced via photon-gluon fusion, we find that longitudinally…

高能物理 - 唯象学 · 物理学 2026-03-17 Wei Qi , Zijing Guo , Bo-Wen Xiao

We discuss the sensitivity to four-fermion contact interactions of the process of fermion-pair production at the e^+ - e^- Linear Collider (LC), with E_{CM}=0.5 TeV and longitudinally polarized electron beam. The analysis is based on…

高能物理 - 唯象学 · 物理学 2007-05-23 N. Paver

The study of hadronic structure has been carried out for many years. Generalized parton distribution functions (GPDs) give broad information on the internal structure of hadrons. Combining GPDs and high-energy scattering experiments, we…

高能物理 - 唯象学 · 物理学 2023-06-06 Gang Xie , Wei Kou , Qiang Fu , Zhenyu Ye , Xurong Chen

Parton saturation is one of the most intriguing phenomena in the high energy nuclear physics research frontier, especially in the upcoming era of the Electron-Ion Collider (EIC). The lepton-jet correlation in deep inelastic scattering…

高能物理 - 唯象学 · 物理学 2023-04-26 Xuan-Bo Tong , Bo-Wen Xiao , Yuan-Yuan Zhang

A novel precision polarimeter will go a long way in satisfying the requirements of the precision experiments being planned for a future facility such as the Electron Ion Collider. A polarimeter based on the asymmetry in the spacial…

加速器物理 · 物理学 2020-12-16 Prajwal Mohanmurthy

We extend the FONLL general-mass variable-flavour-number scheme to the case of longitudinally polarised DIS structure functions, accounting for perturbative corrections up to $\mathcal{O}(\alpha_s^2)$. We quantify the impact of charm quark…

Around 1999, thanks to the RHIC Spin Collaboration (RSC), the Relativistic Heavy Ion Collider (RHIC) will be used as a polarized proton-proton collider. A new handed interaction between quark subconstituents, which could explain the excess…

高能物理 - 唯象学 · 物理学 2007-05-23 J. M. Virey

We present a quantitative assessment of the impact a future electron-ion collider will have on determinations of helicity quark and gluon densities and their contributions to the proton spin. Our results are obtained by performing a series…

高能物理 - 唯象学 · 物理学 2013-05-30 Elke C. Aschenauer , Rodolfo Sassot , Marco Stratmann

The future Electron-Ion Collider (EIC), which is expected to start construction at Brookhaven National Laboratory in 2025, will utilize high-luminosity high-energy electron+proton and electron+nucleus collisions to explore several…

高能物理 - 唯象学 · 物理学 2023-06-12 Xuan Li

Efficient detection of spectator fragments is key to the main topics at an electron-ion collider (eIC). Any process which leads to emission of fragments or $\gamma$'s breaks coherence in diffractive processes. Therefore this is equivalent…

核实验 · 物理学 2010-03-11 Sebastian White , Mark Strikman

The Large Hadron Collider, LHC, though meant for discovery, will provide enough data from early phase to also perform various studies of Standard Model processes in as yet unexplored kinematic regions. Precision measurements of the…

高能物理 - 实验 · 物理学 2008-09-10 Kajari Mazumdar

Experiments at electron-positron colliders can search for dark matter particle pair-production in association with a photon. We estimate the sensitivity of this search at the proposed International Linear Collider (ILC), under a variety of…

高能物理 - 唯象学 · 物理学 2015-06-12 Yoonseok John Chae , Maxim Perelstein

We investigate the sensitivity of a future 10 TeV muon collider to dimension-6 operators in the Standard Model Effective Field Theory (SMEFT), focusing on Higgs and top quark production processes. The analysis includes two-fermion and…

高能物理 - 唯象学 · 物理学 2026-04-13 Tisa Biswas , Anindya Datta , Barbara Mele

We explore the constraints which can be derived on Wilson coefficients in the Standard Model Effective Field Theory from dilepton production, notably including the constraints on operators which do not lead to cross sections growing with…

高能物理 - 唯象学 · 物理学 2021-03-31 Alyssa Horne , Jordan Pittman , Marcus Snedeker , William Shepherd , Joel W. Walker

Polarized ion beams at the Electron Ion Collider are essential to address some of the most important open questions at the twenty-first century frontiers of understanding of the fundamental structure of matter. Here, we summarize the…