Gradient Flow of the Weinberg Operator
We present preliminary results on the susceptibilities involving the CP-violating (CPV) Weinberg three-gluon operator and the topological Θ term using the gradient flow scheme, and study their continuum and chiral extrapolations. These are used to provide an estimate of the Θ induced by the Weinberg operator in theories with the Peccei-Quinn (PQ) mechanism. Combined with the calculations of the matrix elements (MEs) of quark-bilinears between nucleon states, such calculations will enable estimates of the electric dipole moments (EDMs) and CPV pion-nucleon couplings due to the Weinberg operator, thereby providing robust constraints on beyond the standard model (BSM) physics.
Authors
- J. Yoo (ORCID: https://orcid.org/0000-0001-6272-4790)
- Rajan Gupta (ORCID: https://orcid.org/0000-0003-1784-3058)
- Tanmoy Bhattacharya A (ORCID: https://orcid.org/0000-0002-1060-652X)
- Emanuele Mereghetti (ORCID: https://orcid.org/0000-0002-8623-5796)
- Shohini Bhattacharya (ORCID: https://orcid.org/0000-0001-8536-082X)
- Vincenzo Cirigliano (ORCID: https://orcid.org/0000-0002-9056-754X)
- Sungwoo Park (ORCID: https://orcid.org/0000-0002-9454-5807)
- Boram Yoon (ORCID: https://orcid.org/0000-0003-0069-6514)
Publication Details
- Published
- 2025-02-12
- DOI
- https://doi.org/10.22323/1.466.0344
- Primary Topic
- Advanced Mathematical Modeling in Engineering
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- U.S. Department of Energy
- National Energy Research Scientific Computing Center
- Office of Science
- High Energy Physics
- Laboratory Directed Research and Development
- Lawrence Livermore National Laboratory
- Los Alamos National Laboratory