#通識認證講座 (13:40開放入場)

【主講者】彭仁傑 教授 Prof. Jen-Chieh Peng
University of Illinois at Urbana-Champaign and National Central University

【演講題目】Exploring the Nucleon Sea with Lepton-Pair Production

【演講時間】2022/12/16(五) 14:10-16:10

【演講地點】理學教學大樓36102室

【Abstract】
Direct experimental evidence for point-like constituents in the nucleons was first found in the electron deep inelastic scattering (DIS) experiment. The discovery of the valence and sea quark structures in the nucleons inspired the formulation of Quantum Chromodynamics (QCD) as the gauge field theory governing the strong interaction. A surprisingly large asymmetry between the up and down sea quark distributions in the nucleon was observed in DIS and the lepton-pair production experiments. In this talk, I discuss the current status of our knowledge on the flavor structure of the nucleon sea. I will also discuss the progress in identifying the "intrinsic" sea components in the nucleons. Recent results from the Fermilab SeaQuest experiment to extend the measurement of sea-quark flavor structure to large-x region will be presented. Prospect for future studies on nucleon sea will also be discussed.

【報名資訊】
1.請於12月15日(四)23:50前至 https://activity.ncku.edu.tw/index.php?c=apply&no=12842報名
(與物理系專題討論合辦，物理系師生優先參與。開放外系師生同仁共120名報名參加，滿額即截止報名)

2.物理系專討修課學生，由系上直接提供名單，不需報名。

 【備註】
1.配合「防疫新生活運動」集會應維持社交距離、配戴口罩。
2.請與會人員遵守衛生福利部疾病管制署「嚴重特殊傳染性肺炎因應指引：公眾集會」，若有呼吸道癥狀或發燒，應儘速就醫，