Aug 8 – 13, 2022
Hörsaalzentrum Poppelsdorf
Europe/Berlin timezone

nEDM from the theta-term and chromoEDM operators

Aug 9, 2022, 2:00 PM
20m
CP1-HSZ/Ground-0.001 - HS3 (CP1-HSZ)

CP1-HSZ/Ground-0.001 - HS3

CP1-HSZ

50
Oral Presentation QCD in searches for physics beyond the Standard Model QCD in searches for physics beyond the Standard Model

Speaker

Dr Tanmoy Bhattacharya (Los Alamos National Laboratory)

Description

In our previous work, we showed that unresolved excited state contaminations provide a major source of systematic uncertainty in the calculation of the nucleon electric dipole moment due to the QCD topological term theta. Here we extend this result to the calculation of the nucleon electric dipole moment due to the quark chromo-electric dipole moment operator. We also show quantitatively the impact of mixing of the latter with lower-dimensional operators on the lattice. Finally, we present preliminary results from a unitary clover-on-clover calculation for the QCD topological term.

Primary author

Dr Tanmoy Bhattacharya (Los Alamos National Laboratory)

Co-authors

Dr Boram Yoon (Los Alamos National Laboratory) Dr Emanuele Mereghetti (Los Alamos National Laboratory) Dr Rajan Gupta (Los Alamos National Laboratory) Prof. Vincenzo Cirigliano (University of Washington, Seattle)

Presentation materials