Shanghai Jiao Tong University Physics and Astronomy Academic Innovation Forum for Doctoral Students

Session

Nuclear&Particle Session II

11 Dec 2021, 15:30

Tsung-Dao Lee Institute

37. Spacer configuration optimization for RPCs based on COMSOL Multiphysics simulation

Lining Mao

11/12/2021, 15:30

The uniformity of the gas flow in the chamber and the deformation of the electrode plates are critical to the performance of RPC (Resistance Plate Chamber). In this talk, a new design of RPC with “shifted” spacer configuration and less spacer number is come up. The different behaviors of the flow field, electrode’s deformation and electric field between RPCs with new spacer configuration and...

38. Fast Timing Readout Electronic based on PETIROC ASIC

Mr Qiuping SHEN (Shanghai Jiao Tong University)

11/12/2021, 15:50

Semi-Digital Hadron Calorimeter (SDHCAL) prototype for CEPC is a PFA-based hadron calorimeter that has shown good energy and position resolution with a CERN test beam. Considering the signal time of hadronic shower formed by neutrons is delayed, compared with that from charged hadrons, high-precision time measurement, requiring at least 100ps orders, helps improve separation between
neutrons...

39. 丰质子原子核质量的预言

Mr Zong Yaoyao

11/12/2021, 16:10

原子核的质量是核物理中最基本的物理量之一，原子核质量的预言在核物理以及核天体领域中具有广泛且重要的应用。镜像核质量公式基于同位旋对称性和库仑相互作用，对丰质子区原子核质量进行精确描述，公式的精度达到 110–130 keV。通过奇偶性分组拟合和残差关联效应，质量公式的精度进一步降低到 50–90 keV。通过使用镜像核质量公式，可以对丰质子区原子核的质量进行预言，预言值和最新实验数据精确吻合。

41. Collins-Soper kernel from transverse momentum-dependent wave functions in LaMET

Mr Min-Huan Chu (Shanghai Jiao Tong University)

11/12/2021, 16:30

In this work we present the analysis of Collins-Soper kernel extracted from pion transverse momentum dependent wave functions in the framework of large momentum effective theory from lattice QCD. We use clover fermion action with $2 + 1 + 1$ flavors of highly improved staggered quarks (HISQ), with lattice spacing $a=0.12$fm and volume $L^3\times T=48^3\times64$. The results are obtained based...