Landscaping CP-violating BSM scenarios

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

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