Bulletin of the American Physical Society
2021 Fall Meeting of the APS Division of Nuclear Physics
Volume 66, Number 8
Monday–Thursday, October 11–14, 2021; Virtual; Eastern Daylight Time
Session DA: Spin Physics at BNL and JLab, New Results on J/psi and the Road to the EIC |
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Chair: Elke-Caroline Aschenauer, BNL Room: Ballroom B |
Tuesday, October 12, 2021 9:30AM - 10:06AM |
DA.00001: JLab 12 GeV Highlights: J/ψ Near Threshold and Nucleon Spin Invited Speaker: Sylvester J Joosten In this talk, I will highlight two major cornerstones of the Jefferson Lab 12 GeV physics program: J/ψ production near-threshold and the spin structure of the nucleon in the valence region. |
Tuesday, October 12, 2021 10:06AM - 10:42AM |
DA.00002: New Results from the RHIC Spin Program Invited Speaker: Nicole A Lewis The Relativistic Heavy Ion Collider (RHIC) is the first and only collider in the world that is able to run polarized proton beams, allowing for spin measurements at higher energies compared to fixed target experiments. Longitudinally polarized proton-proton collisions probe the spin structure of the proton, while transversely polarized proton-proton collisions are sensitive to transverse momentum dependent distributions and their multiparton correlation counter parts. This talk will cover new results from the RHIC spin program including measurements of how much the gluon spin contributes to the overal proton spin and spin-momentum correlations in both the proton and hadronization, as well as future spin measurement opportunities with the STAR forward upgrade and the upcoming sPHENIX experiment. The spin program at the RHIC has been integral toward expanding our knowledge of the structure of the nucleon and the process of hadronization. |
Tuesday, October 12, 2021 10:42AM - 11:18AM |
DA.00003: Experimental Equipment of the EIC Invited Speaker: Tanja Horn The Electron-Ion Collider (EIC) is a new, innovative, large-scale particle accelerator facility planned for construction at Brookhaven National Laboratory. The EIC will study protons, neutrons and atomic nuclei with the most powerful electron microscope, in terms of versatility, resolving power and intensity, ever built. The EIC will address some of the most fundamental questions in science regarding the visible world, including the origin of the nucleon mass, the nucleon spin, and the emergent properties of a dense system of gluons. EIC detectors are essential to access the physical observables described by theoretical calculations. In contrast to symmetric ee and pp colliders, the asymmetric nature of collisions at the EIC leads to unique detector requirements. The hadron endcap, barrel, and electron endcap detector systems see very different particle distributions, in terms of both momentum and particle types. Likewise, the performance requirements on these detector systems vary significantly between the detector regions. This is reflected by the critical detector requirements for the track, vertex, and energy resolution and particle identification separation summarized in the EIC Users Group Yellow Report (YR). The YR has become the cornerstone on which detector proposals are being developed. In this talk I will present the detector requirements and design driven by the EIC physics program and defined by the EIC Community, and an overview of the ongoing detector proposal development efforts. |
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