Hints for Leptonic CP Violation or New Physics?

Forero, David V.; Huber, Patrick

doi:10.1103/PhysRevLett.117.031801

Title: Hints for Leptonic $C P$ Violation or New Physics?

Journal Article · Mon Jul 11 00:00:00 EDT 2016 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.117.031801· OSTI ID:1594384

Forero, David V. ^[1]; Huber, Patrick ^[1]

Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)

One of the major unanswered questions in the neutrino sector is the issue of leptonic CP violation. Current global oscillation data shows a mild preference for a large, potentially maximal value for the Dirac CP phase in the neutrino mixing matrix. In this letter, we point out that New Physics in the form of neutral-current like non-standard interactions with real couplings would likely yield a similar conclusion even if CP in the neutrino sector were conserved. Therefore, the claim for a discovery of leptonic CP violation will require a robust ability to test New Physics scenarios.

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Research Organization:: Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Grant/Contract Number:: SC0009973; SC0013632

OSTI ID:: 1594384

Alternate ID(s):: OSTI ID: 1261230

Journal Information:: Physical Review Letters, Vol. 117, Issue 3; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 45 works

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