| Article | |
| Report number | arXiv:1905.05211 |
| Title | Pati-Salam and lepton universality in B decays |
| Author(s) | Heeck, Julian (UC, Irvine) ; Teresi, Daniele (Pisa U. ; INFN, Pisa) |
| Publication | 2019 |
| Imprint | 2019-05-13 |
| Number of pages | 6 |
| Note | 6 pages, contribution to the 2019 EW session of the 54th Rencontres de Moriond |
| In: | 54th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 16 - 23 Mar 2019, pp.333-338 |
| Subject category | hep-ex ; Particle Physics - Experiment ; hep-ph ; Particle Physics - Phenomenology |
| Abstract | Recent hints for lepton-flavor non-universality in $B$-meson decays can be interpreted as hints for the existence of leptoquarks. We show that scalar leptoquarks unavoidably arise in grand unified theories, using the well-known Pati-Salam model as an example. These GUT-motivated leptoquarks can have a number of appealing features including automatic absence of proton decay, purely chiral couplings, and relations between the various leptoquark couplings. We show that $R(K^{(*)})$ can be connected to the neutrino mass matrix that arises via type-II seesaw, resulting in testable lepton flavor violation. In order to also explain $R(D^{(*)})$ one instead has to assume the existence of light right-handed neutrinos, once again with testable predictions in other $B$-meson decays and at the LHC. |
| Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © Published by ARISF, 2019 |
Corresponding record in: Inspire
ჩანაწერი შექმნილია 2021-03-06, ბოლოს შესწორებულია 2022-01-14
