It’s all right(-handed neutrinos): a new W ' model for the R D ( ∗ ) anomaly

Asadi, Pouya; Buckley, Matthew R.; Shih, David

doi:10.1007/jhep09(2018)010

Title: It’s all right(-handed neutrinos): a new W ' model for the $R_{D^{_{(*)}}}$ anomaly

Journal Article · Mon Sep 03 00:00:00 EDT 2018 · Journal of High Energy Physics (Online)

DOI:https://doi.org/10.1007/jhep09(2018)010· OSTI ID:1502358

^[1]; Buckley, Matthew R. ^[2]; Shih, David ^[2]

Rutgers Univ., Piscataway, NJ (United States). NHETC. Dept. of Physics and Astronomy; Univ. of California, Santa Barbara, CA (United States). Kavli Inst. for Theoretical Physics
Rutgers Univ., Piscataway, NJ (United States). NHETC. Dept. of Physics and Astronomy

The measured B-meson semi-leptonic branching ratios R_D and $R_{D^{*}}$ have long-standing deviations between theory and experiment. We introduce a model which explains both anomalies through a single interaction by introducing a right-handed neutrino as the missing energy particle. This interaction is mediated by a heavy charged vector boson (W ') which couples only to right-handed quarks and leptons of the Standard Model through the mixing of these particles with new vector-like fermions. Previous W ' models for the $R_{D^{(*)}}$ anomaly were strongly constrained from flavor changing neutral currents and direct collider searches for Z' → τ τ resonances. We show that relying on right-handed fermion mixing enables us to avoid these constraints, as well as other severe bounds from electroweak precision tests and neutrino mixing.

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Research Organization:: Rutgers Univ., Piscataway, NJ (United States); Univ. of California, Santa Barbara, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP); Simons Foundation (United States); Gordon and Betty Moore Foundation (United States); National Science Foundation (NSF)

Grant/Contract Number:: SC0010008; SC0017811; 216179; 4310; PHY17-48958

OSTI ID:: 1502358

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: 56 works

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