The triplet Dirac seesaw in the view of the recent CDF-II W mass anomaly

In the present letter, a Dirac neutrino mass model is presented in the view of the new result on W boson mass of mCDF-II = 80.4335 & PLUSMN; 0.0094 GeV, recently reported by the CDF-II experimental collaboration. W The newly measured value of the W mass anomaly shows a 7-& sigma; deviation from that predicted by the standard model. The model explains the CDF-II W boson mass anomaly by extending the standard model with hypercharge zero vector-like fermion triplet. Symmetry is amended with a global U(1)B-L which is broken with an hypercharge zero electroweak triplet. It is demonstrated that the model can successfully explain CDF-II result, Dirac neutrino mass origin, while satisfying standard model precision constraints and collider constraints with scalar and fermion triplet masses in the ranger 1.4 TeV-5.2 TeV and 100 TeV -1013 GeV, respectively.& COPY; 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons .org /licenses /by /4 .0/). Funded by SCOAP3.

Automated summary

In this letter, a Dirac neutrino mass model is presented to explain the CDF-II W boson mass anomaly. The model extends the standard model by introducing a hypercharge zero vector-like fermion triplet and amends symmetry with a global U(1)B-L broken by a hypercharge zero electroweak triplet. It is demonstrated that the model can successfully explain the CDF-II result and the origin of Dirac neutrino mass, while satisfying standard model and collider constraints.