Landscaping CP-violating BSM scenarios

Bakshi, S. D., Chakrabortty, J., Englert, C. , Spannowsky, M. and Stylianou, P. (2022) Landscaping CP-violating BSM scenarios. Nuclear Physics B, 975, 115676. (doi: 10.1016/j.nuclphysb.2022.115676)

Abstract

We consider a wide range of UV scenarios with the aim of informing searches for CP violation at the TeV scale using effective field theory techniques. We demonstrate that broad theoretical assumptions about the nature of UV dynamics responsible for CP violation map out a small subset of relevant operators at the TeV scale. Concretely, this will allow us to reduce the number of free parameters that need to be considered in experimental investigations, thus enhancing analyses' sensitivities. In parallel, reflecting the UV dynamics' Wilson coefficient hierarchy will enable a streamlined theoretical interpretation of such analyses in the future. We demonstrate a minimal approach to analysing CP violation in this context using a Monte Carlo study of a combination of weak boson fusion Higgs and electroweak diboson production, which provide complementary information on the relevant EFT operators.

• Item Type: Articles
• Additional Information: We would like to thank Andy Buckley for helpful discussions. The work of S.D.B. and J.C. is supported by the Science and Engineering Research Board, Government of India, under the agreements SERB/PHY/2016348 (Early Career Research Award) and SERB/PHY/2019501 (MATRICS). C.E. is supported by the UK Science Technologies and Facilities Council (STFC) under grant ST/T000945/1 and by the IPPP Associateship Scheme. M.S. is supported by the STFC under grant ST/P001246/1. P.S. is supported by an STFC studentship under grant ST/T506102/1.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Stylianou, Mr Panagiotis and Englert, Professor Christoph
• Authors: Bakshi, S. D., Chakrabortty, J., Englert, C., Spannowsky, M., and Stylianou, P.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Nuclear Physics B
• Publisher: Elsevier
• ISSN: 0550-3213
• ISSN (Online): 1873-1562
• Published Online: 21 January 2022
• Copyright Holders: Copyright © 2022 The Author(s)
• First Published: First published in Nuclear Physics B 975: 115676
• Publisher Policy: Reproduced under a Creative Commons licence