Type III seesaw with R-parity violation in light of mW (CDF)

Motivated by the recently reported measurement of the W boson mass MW = 80.4335 +/- 0.0094 GeV by the CDF collaboration, we propose a type III seesaw extension of the minimal supersymmetric standard model (MSSM) which also includes an R-parity violating term. Without taking potential SUSY radiative corrections into account, we show that the CDF measurement of MW and the LEP measurement of the rho parameter can be simultaneously accommodated at the 2 sigma level. A long-lived gravitino in a few GeV mass range is a unique viable dark matter candidate in this framework.(c) 2023 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

Motivated by the recent measurement of the W boson mass by the CDF collaboration, we propose a type III seesaw extension of the MSSM with an R-parity violating term. We show that the CDF measurement of MW and the LEP measurement of the rho parameter can be simultaneously explained at the 2 sigma level without considering potential SUSY radiative corrections. In this framework, a long-lived gravitino in the few GeV mass range is a unique viable dark matter candidate.