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Updated constraints from electric dipole moments in the MSSM with R-parity violation

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [2];  [3];  [4]
  1. Univ. of California, Santa Cruz, CA (United States)
  2. Washington Univ., St. Louis, MO (United States); Johannes Gutenberg Univ., Mainz (Germany)
  3. Brookhaven National Laboratory (BNL), Upton, NY (United States)
  4. Washington Univ., St. Louis, MO (United States); Fudan Univ., Shanghai (China)
We revisit the electric dipole moments (EDMs) of quarks and leptons in the Minimal Supersymmetric Standard Model (MSSM) with trilinear R-parity violation (RPV). In this framework, EDMs are induced at the two-loop level via RPV interactions. We perform a comprehensive recalculation of several classes of Barr-Zee type diagrams in a general Rξ gauge. While we find general agreement with previous analytic results in the literature, our work provides a valuable independent cross-check of the complicated calculations. We also point out some subtleties in the intermediate steps and in the choice of the flavor basis for the numerical evaluation of the expressions. By confronting the theoretical predictions with the latest experimental limits on EDMs, we derive updated constraints on combinations of RPV couplings. We highlight an approximate, testable correlation between the proton and neutron EDM that emerges within the considered class of RPV models, offering a distinctive signature for future EDM experiments.
Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Washington Univ., St. Louis, MO (United States)
Sponsoring Organization:
National Science Foundations of China; USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
SC0010107; SC0012704; SC0017987
Other Award/Contract Number:
12275052
12147101
OSTI ID:
3018222
Alternate ID(s):
OSTI ID: 3020276
Report Number(s):
BNL--229437-2026-JAAM
Journal Information:
Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 1 Vol. 2026; ISSN 1029-8479
Publisher:
Springer NatureCopyright Statement
Country of Publication:
United States
Language:
English

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