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Signatures of complex new physics in charged current B anomalies

Kumbhakar, S (2021) Signatures of complex new physics in charged current B anomalies. In: 40th International Conference on High Energy Physics, ICHEP 2020, 28 Jul 2020 to 6 Aug 2020, Prague, Czech Republic, Virtual.

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Official URL: https://doi.org/10.22323/1.390.0389


Present world averages of RD and RD* measurements are in disagreement with their Standard Model (SM) predictions at a level of ~ 3.1s. Assuming the new physics Wilson coefficients to be complex, we do a global fit to the present b ? ct ?¯ data. We find that there are only one/two/three allowed solutions depending upon three choices on upper limits 10/30/60 of Br(Bc ? t ?¯). Further we calculate the maximum values of CP violating triple product asymmetries in B ? D*t?¯ decay allowed by the current data. We find that one of the three asymmetries can be enhanced up to only ~ 2 - 3 due to presence of the allowed new physics solutions. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).

Item Type: Conference Paper
Publication: Proceedings of Science
Publisher: Sissa Medialab Srl
Additional Information: The copyright for this article belongs to Sissa Medialab Srl
Keywords: Charged current; Current data; New physics; Standard model; Upper limits, High energy physics
Department/Centre: Division of Physical & Mathematical Sciences > Centre for High Energy Physics
Date Deposited: 04 Aug 2021 07:03
Last Modified: 04 Aug 2021 07:03
URI: http://eprints.iisc.ac.in/id/eprint/68937

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