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Abstract:
Nucleons consist of quarks and gluons, which are described by Quantum Chromodynamics (QCD), while nuclei are made up of nucleons, which are described by effective mean-field theories such as shell models. Despite our knowledge of QCD, we do not yet understand how quarks and gluons are directly involved in forming nuclei or how nuclear force is initiated from strong interaction. However, through studying the Short-Range Correlations (SRC), where two or more nucleons are extremely close and highly overlapped due to the dynamic balance of strong tensor-force and repulsive cores, we can gain valuable insights into the amplified two-body and three-body nucleon-nucleon forces and the roles of quarks and gluons in nuclear ground states. In addition, studying SRC allows us to investigate the properties of high-density cold SRC clusters, which can help us better understand the internal structure of neutron stars. Recent research has also connected SRC to the EMC effects, which describe the modification of quark distributions in a proton bound inside a nucleus. A systematic understanding of the connection between SRC and EMC effects is essential for bridging the gap between nuclear and nucleon structures. In this talk, I will discuss how we experimentally measure SRC and EMC effects, primarily at Thomas Jefferson Lab (JLab), the future Electron-Ion Collider (EIC), and possibly at the new HIAF in Huizhou, Guangzhou.
Biography:
About the speaker: Prof. Zhihong Ye received his B.S. degree from Lanzhou University and his Ph.D. in experimental medium-energy physics from the University of Virginia. He then worked as a postdoc at Duke University and Argonne National Lab and as a senior research associate at Argonne National Lab. He also briefly worked at Canon Inc. Medical Research Institute developing the new generation photon-counting CT. He joined Tsinghua University in 2021 as a full-time assistant professor in the Department of Physics and continues to work on experiments at JLab. He is also actively involved in the development of US-EIC and China-EIC projects. His research topics include SRC and EMC effects, proton form-factors and charged-radius, and 3D quark structures in nucleons and nuclei.
Online Meeting Room: https://meeting.tencent.com/dm/ZiAjpk4PdiJF
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