Afik Y, Bar-Shalom S, Pal K, Soni A, Wudka J. Generic Tests of CP Violation in High-p_{T} Multilepton Signals at the LHC and Beyond.
PHYSICAL REVIEW LETTERS 2023;
131:171801. [PMID:
37955482 DOI:
10.1103/physrevlett.131.171801]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 08/28/2023] [Accepted: 09/20/2023] [Indexed: 11/14/2023]
Abstract
We introduce a modification to the standard expression for tree-level CP violation in scattering processes at the LHC, which is important when the initial state is not self-conjugate. Based on that, we propose a generic and model-independent search strategy for probing tree-level CP violation in inclusive multilepton signals. We then use TeV-scale 4-fermion operators of the form tuℓℓ and tcℓℓ with complex Wilson coefficients as an illustrative example and show that it may generate O(10%) CP asymmetries that should be accessible at the LHC with an integrated luminosity of O(1000) fb^{-1}.
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