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Higgs CP Violation from Vectorlike Quarks

Chen, Chien-Yi and Dawson, S. and Zhang, Yue (2015) Higgs CP Violation from Vectorlike Quarks. Physical Review D, 92 (7). Art. No. 075026. ISSN 2470-0010. doi:10.1103/PhysRevD.92.075026.

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We explore CP violating aspects in the Higgs sector of models where new vectorlike quarks carry Yukawa couplings mainly to the third generation quarks of the Standard Model. We point out that in the simplest model, Higgs CP violating interactions only exist in the hWW channel. At low energy, we find that rare B decays can place similarly strong constraints as those from electric dipole moments on the source of CP violation. These observations offer a new handle to discriminate from other Higgs CP violating scenarios such as scalar sector extensions of the Standard Model, and imply an interesting future interplay among limits from different experiments.

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Additional Information:© 2015 American Physical Society. Received 30 July 2015; published 20 October 2015. We thank JiJi Fan, Enrico Lunghi, and Miha Nemevsek for useful discussions. The work of C.-Y. Chen and S. Dawson is supported by the U.S. Department of Energy (DOE) under Grants No. DE-AC02-98CH10886 and Contract No. DE-AC02-76SF00515. This work of Y. Zhang is supported by the Gordon and Betty Moore Foundation through Grant No 776 to the Caltech Moore Center for Theoretical Cosmology and Physics, and by the DOE Grant No. DE-FG02-92ER40701, and also by a DOE Early Career Award under Grant No. DE-SC0010255.
Group:Walter Burke Institute for Theoretical Physics, Moore Center for Theoretical Cosmology and Physics
Funding AgencyGrant Number
Department of Energy (DOE)DE-AC02-98CH10886
Department of Energy (DOE)DE-AC02-76SF00515
Gordon and Betty Moore Foundation776
Department of Energy (DOE)DE-FG02-92ER40701
Department of Energy (DOE)DE-SC0010255
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Issue or Number:7
Classification Code:PACS numbers: 12.60.Fr, 14.65.Jk, 12.60.-i, 31.30.jn
Record Number:CaltechAUTHORS:20150801-082110179
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:59131
Deposited By: Joy Painter
Deposited On:06 Aug 2015 18:38
Last Modified:10 Nov 2021 22:15

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