Probing spatial parton distributions of the proton via hard processes in pp collisions

Thursday 23 Sept 2021, 14:30 → 16:30 Asia/Shanghai

Abstract: In this talk I will present my recent work on factorization and transverse phase-space parton distributions. I will start with a discussion on physical conditions needed to define impact-parameter dependent cross section in quantum field theory. Then, I will give a factorization formula for the impact-parameter dependent cross section for inclusive hard processes with only colorless final-state products in hadron and nuclear collisions. It is valid for all pp, pA and AA collisions. By modeling large nuclei, the factorization formula confirms the cross section in the Glauber model for hard processes in AA collisions. In pp collisions, it opens up the avenue to measure transverse quantum phase-space parton distributions in the proton.  A potential violation of the physical conditions for defining the impact-parameter dependent cross section in pp collisions by the LHC experiments will also be discussed.

 

 

个人介绍：

吴斌，北京大学理学博士，现任西班牙圣地亚哥大学加利西亚高能物理研究所杰出研究员。

研究领域：主要从事与高能强子和原子核对撞实验相关的理论计算。具体的研究方向包括：

（1) QCD喷注物理及其在冷核物质和夸克胶子等离子体中的演化；

  (2) 强子和原子核高能对撞中产生的QCD物质的热化过程，以及其与实验上观测到的集体运动（collectivity）的联系；

  (3) 软共线有效理论在强子和原子核高能对撞物理中的应用等。

学习和研究经历：先后于美国哥伦比亚大学，德国比勒菲尔德大学和法兰克福高等研究中心，法国原子能委员会理论物理研究所，美国俄亥俄州立大学以及欧洲核子研究中心学习和从事博士后研究工作。

 

Time: 2:30 pm Thursday,  Sep 23, 2021

Location: C101 (视频会议室)

Zoom link:  https://cern.zoom.us/j/69168266831  passcode:fudanHEP

Host: Dingyu Shao

 

ProbeProton.pdf