Confronting B anomalies with low-energy parity violation
Abstract
Indirect searches have the potential to probe scales beyond the realm of direct searches. In this paper, we consider the implications of two parity violating experiments: weak charge of proton QWp and the Caesium atom QWC s on the solutions to lepton flavor nonuniversality violations in the decay of B mesons. Working in a generic implementation of a minimal Z' model, we assume the primary contribution being due to the electron to facilitate comparison with the low q2 parity violating experiments. We demonstrate that the conclusion is characterized by different limiting behavior depending on the chirality of the lepton current. The correlation developed in this study demonstrates the effectiveness in studying the synergy between different experiments leading to a deeper understanding of the interpretation of the existing data. It is shown that a possible future improvement in the parity violating experiments can have far reaching implications in the context of direct searches. We also comment on the prospect of addition of the muon to the fits and the role it plays in ameliorating the constraints on models of Z'. This offers a complimentary understanding of the pattern of the coupling of the new physics to the leptons, strongly suggesting either a muon only or a combination of solutions to the anomalies.
- Publication:
-
Physical Review D
- Pub Date:
- February 2020
- DOI:
- 10.1103/PhysRevD.101.035025
- arXiv:
- arXiv:1902.00893
- Bibcode:
- 2020PhRvD.101c5025D
- Keywords:
-
- High Energy Physics - Phenomenology
- E-Print:
- 8 pages, 7 Figures. Title modified, improved plots and discussion. Added analysis with the inclusion of the muon. Added references and acknowledgement. Matches version to appear in PRD