Landscaping CP-violating BSM scenarios

Das Bakshi, Supratim; Chakrabortty, Joydeep; Englert, Christoph; Spannowsky, Michael; Stylianou, Panagiotis

doi:10.1016/j.nuclphysb.2022.115676

Landscaping CP-violating BSM scenarios

Das Bakshi, Supratim; Chakrabortty, Joydeep; Englert, Christoph; Spannowsky, Michael; Stylianou, Panagiotis

Authors

Supratim Das Bakshi

Joydeep Chakrabortty

Christoph Englert

Professor Michael Spannowsky michael.spannowsky@durham.ac.uk
Director

Panagiotis Stylianou

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.

Citation

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

Journal Article Type	Article
Acceptance Date	Jan 18, 2022
Online Publication Date	Jan 21, 2022
Publication Date	2022
Deposit Date	Feb 16, 2022
Publicly Available Date	Feb 16, 2022
Journal	Nuclear Physics B
Print ISSN	0550-3213
Publisher	Elsevier
Peer Reviewed	Peer Reviewed
Volume	975
DOI	https://doi.org/10.1016/j.nuclphysb.2022.115676