Singlet-doublet fermion origin of dark matter, neutrino mass and W-mass anomaly

Borah, Debasish and Mahapatra, Satyabrata and Sahu, Narendra (2022) Singlet-doublet fermion origin of dark matter, neutrino mass and W-mass anomaly. Physics Letters B, 831. pp. 1-6. ISSN 0370-2693

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Abstract

Motivated by the recently reported anomaly in W boson mass by the CDF collaboration with 7σ statistical significance, we consider a singlet-doublet (SD) Majorana fermion dark matter (DM) model where the required correction to W boson mass arises from radiative corrections induced by SD fermions. While a single generation of SD fermions, odd under an unbroken symmetry, can not explain the W boson mass anomaly while being consistent with DM phenomenology, two generations of SD fermions can do so with the heavier generation playing the dominant role in W-mass correction and lighter generation playing the role in DM phenomenology. Additionally, such multiple generations of SD fermions can also generate light neutrino masses radiatively if a -odd singlet scalar is included.

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IITH Creators:

IITH Creators	ORCiD
Sahu, Narendra	https://orcid.org/0000-0002-9675-0484

Item Type:

Article

Additional Information:

NS would like to acknowledge the support from the Department of Atomic Energy (DAE)- Board of Research in Nuclear Sciences (BRNS), Government of India (Ref. Number: 58/14/15/2021-BRNS/37220).

Uncontrolled Keywords:

singlet-doublet (SD) Majorana fermion dark matter (DM) model,W boson mass , light neutrino masses

Subjects:

Physics

Divisions:

Department of Physics

Depositing User:

. LibTrainee 2021

Date Deposited:

16 Aug 2022 06:17

Last Modified:

16 Aug 2022 06:17