Bulletin of the American Physical Society
5th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Volume 63, Number 12
Tuesday–Saturday, October 23–27, 2018; Waikoloa, Hawaii
Session 1WHB: Hadron Structure II |
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Chair: Anselm Vossen, Duke University Room: Hilton Kohala 4 |
Tuesday, October 23, 2018 11:00AM - 11:30AM |
1WHB.00001: Overview of the EIC detector concepts and R&D Invited Speaker: Itaru Nakagawa The EIC detector is required to have excellent performance for a broad range of exciting EIC physics measurements, providing powerful investigations not currently available that will dramatically advance our understanding of how quantum chromodynamics binds the proton and forms nuclear matter. The expected physics and the accelerator's parameters drive the design in a significant way while many other aspects, constraints and boundary conditions have to be taken into account. The design of the detector is based on the collider detector which is optimized for deep inelastic (DIS), semi-DIS, other exclusive reactions as testing grounds. A general purpose and a high hermeticity are thus a crucial requirement as the EIC detector. Such a detector is typically composed of vertex, tracking, particle identification, EM and hadron calorimeter detectors. These detectors are arranged for e-going, central and hadron going directions to meet the demand of each direction. The EIC detector designs have been developed by different collaborators in different laboratories such as BEAST, ePHENIX/eSTAR, JLEIC, and SiEIC. A basic common features of the general EIC detector concept are to be discussed as well as introducing uniqueness of these different detector and possible detector technology choices. |
Tuesday, October 23, 2018 11:30AM - 12:00PM |
1WHB.00002: The STAR Forward Rapidity Upgrade Invited Speaker: K. Oleg Eyser The STAR experiment is planning to upgrade the forward rapidity region (2.5 < η < 4.5) to enable novel measurements in p+p, p+A and A+A collisions. The upgrade is motivated by the exploration of cold QCD physics in the very high and low regions of x. But it is specifically noted that the forward upgrade will also provide new detector capabilities at RHIC and STAR to explore the longitudinal structure of the initial state and the temperature dependent transport properties of matter in relativistic heavy ion collisions. The current design consists of a Calorimeter System (FCS) integrating the refurbished PHENIX sampling electromagnetic and a new hadronic calorimeter made of a sandwich iron scintillator plate sampling type. In addition to the FCS, a Forward Tracking System (FTS) is proposed. The FTS is require to discriminate the electric charge sign of hadrons in p+p and p+A collisions. In heavy ion collisions, it should be able to measure transverse momenta of charged particles between 0.2-2 GeV/c with 20-30% momentum resolution. The FTS combines 3 Silicon mini-strip disks and 4 Small-Strip Thin Gap Chamber (sTGC) wheels ala ATLAS. This talk will highlight the physics opportunities enabled by the forward upgrade. |
Tuesday, October 23, 2018 12:00PM - 12:30PM |
1WHB.00003: Parton saturation in AA, pA and eA Invited Speaker: Hirotsugu Fujii After recapturing the basics of parton saturation physics, I will report recent theoretical developments and phenomenological applications of the idea to AA and pA collisions. Then I discuss perspectives on EIC eA program which will be crucia to confirm the saturation state and to deepen our understanding of its properties. |
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