R(D(*)) from W' and right-handed neutrinos

Greljo, Admir; Robinson, Dean J.; Shakya, Bibhushan; Zupan, Jure

doi:10.1007/jhep09(2018)169

Title: R(D^(*)) from W' and right-handed neutrinos

Journal Article · Fri Sep 28 00:00:00 EDT 2018 · Journal of High Energy Physics (Online)

DOI:https://doi.org/10.1007/jhep09(2018)169· OSTI ID:1499182

Greljo, Admir ^[1]; Robinson, Dean J. ^[2]; Shakya, Bibhushan ^[3]; Zupan, Jure ^[4]

Johannes Gutenberg-Univ. Mainz, Mainz (Germany); Univ. of Sarajevo, Sarajevo (Bosnia and Herzegovina)
Univ. of Cincinnati, Cincinnati, OH (United States)
Univ. of Cincinnati, Cincinnati, OH (United States); Univ. of Michigan, Ann Arbor, MI (United States)
Univ. of Cincinnati, OH (United States). Dept. of Physics

Here we provide an ultraviolet (UV) complete model for the R(D^(*)) anomalies, in which the additional contribution to semi-tauonic b → c transitions arises from decay to a right-handed sterile neutrino via exchange of a TeV-scale SU(2)_L singlet W'. The model is based on an extension of the Standard Model (SM) hypercharge group, U(1)_Y, to the SU(2)_V × U(1)' gauge group, containing several pairs of heavy vector-like fermions. We present a comprehensive phenomenological survey of the model, ranging from the low-energy flavor physics, direct searches at the LHC, to neutrino physics and cosmology. We show that, while the W' and Z'-induced constraints are important, it is possible to find parameter space naturally consistent with all the available data. The sterile neutrino sector also offers rich phenomenology, including possibilities for measurable dark radiation, gamma ray signals, and displaced decays at colliders.

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Research Organization:: Univ. of Cincinnati, Cincinnati, OH (United States)

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

Grant/Contract Number:: SC0011784

OSTI ID:: 1499182

Alternate ID(s):: OSTI ID: 1593743

Journal Information:: Journal of High Energy Physics (Online), Vol. 2018, Issue 9; ISSN 1029-8479

Publisher:: Springer BerlinCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 57 works

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