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Baryon number violation via Majorana neutrinos in the early Universe, at the LHC, and deep underground

Davoudiasl, Hooman and Zhang, Yue (2015) Baryon number violation via Majorana neutrinos in the early Universe, at the LHC, and deep underground. Physical Review D, 92 (1). Art. No. 016005. ISSN 2470-0010. doi:10.1103/PhysRevD.92.016005.

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We propose and investigate a novel, minimal, and experimentally testable framework for baryogenesis, dubbed dexiogenesis, using baryon number violating effective interactions of right-handed Majorana neutrinos responsible for the seesaw mechanism. The distinct LHC signature of our framework is same-sign top quark final states, possibly originating from displaced vertices. The region of parameters relevant for LHC phenomenology can also yield concomitant signals in nucleon decay experiments. We provide a simple ultraviolet origin for our effective operators, by adding a color-triplet scalar, which could ultimately arise from a grand unified theory.

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Additional Information:© 2015 American Physical Society. (Received 8 May 2015; published 17 July 2015) We would like to thank B. Dev, P. Meade, R. Mohapatra, and G. Senjanović for discussions. We also thank B. Dev and R. Mohapatra for informing us of their forthcoming paper on related topics [40]. The work of H. D. is supported in part by the United States Department of Energy under Contract No. DE-SC0012704. The work of Y. Z. 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 DOE Grant No. DE-FG02-92ER40701, and also by a DOE Early Career Award under Grant No. DE-SC0010255. Y. Z. thanks the BNL theory group for hospitality at the final stage of this paper.
Group:Walter Burke Institute for Theoretical Physics, Moore Center for Theoretical Cosmology and Physics
Funding AgencyGrant Number
Department of Energy (DOE)DE-SC0012704
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:1
Classification Code:PACS numbers: 11.30.Fs, 13.35.Hb, 14.60.St, 14.65.Ha
Record Number:CaltechAUTHORS:20150601-133007174
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Official Citation:Baryon number violation via Majorana neutrinos in the early Universe, at the LHC, and deep underground Hooman Davoudiasl and Yue Zhang Phys. Rev. D 92, 016005
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:57922
Deposited By: Joy Painter
Deposited On:01 Jun 2015 21:34
Last Modified:10 Nov 2021 21:56

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