Speaker
Santanu Mondal
Description
In this talk, I will discuss our recent calculations (Phys. Rev. D102 (2020) no.5, 054512, JHEP 2104 (2021) 044 ) of the first x-moment of nucleon isovector polarized, unpolarized and transversity distributions (momentum fraction, helicity and transversity moment respectively). We use the standard method for the calculation of these moments (via matrix elements of twist two operators), we carry out a detailed analysis of the sources of systematic uncertainty, in particular of excited state contributions. Our calculations have been performed using two different lattice setups (Clover on HISQ and Clover on Clover), each with several ensembles, which give consistent results that are in agreement with global fit analyses.
Primary authors
Santanu Mondal
Tanmoy Bhattacharya
(T-2)
Rajan Gupta
(Los Alamos National Lab)
Balint Joo
(Oak Ridge National Laboratory)
Huey-Wen Lin
Sungwoo Park
(Los Alamos National Laboratory)
Frank Winter
(Jefferson Lab)
Dr
Boram Yoon
(Los Alamos National Laboratory)
