Higgs mass corrections in the SUSY B-L model with inverse seesaw

Higgs mass corrections in the SUSY B-L model with inverse seesaw

In the context of the Supersymmetric (SUSY) B-L (Baryon minus Lepton number) model with an inverse seesaw mechanism, we calculate the one-loop radiative corrections due to right-handed (s)neutrinos to the mass of the lightest Higgs boson when the latter is Standard Model (SM)-like. We show that such effects can be as large as *O*(100) GeV, thereby giving an absolute upper limit on such a mass around 200 GeV. The importance of this result from a phenomenological point of view is twofold. On the one hand, this enhancement greatly reconciles theory and experiment, by alleviating the so-called 'little hierarchy problem' of the minimal SUSY realization, whereby the current experimental limit on the SM-like Higgs mass is very near its absolute upper limit predicted theoretically, of 130 GeV. On the other hand, a SM-like Higgs boson with mass below 200 GeV is still well within the reach of the Large Hadron Collider (LHC), so that the SUSY realization discussed here is just as testable as the minimal version.

208-213

Elsayed, A.

f995816a-2847-4616-99b3-b364ae97d32a

Khalil, S.

6021465e-2f5d-4677-846d-05aebc4499f6

Moretti, S.

b57cf0f0-4bc3-4e02-96e3-071255366614

August 2012

Elsayed, A.

f995816a-2847-4616-99b3-b364ae97d32a

Khalil, S.

6021465e-2f5d-4677-846d-05aebc4499f6

Moretti, S.

b57cf0f0-4bc3-4e02-96e3-071255366614

Elsayed, A., Khalil, S. and Moretti, S.
(2012)
Higgs mass corrections in the SUSY B-L model with inverse seesaw.
*Physics Letters B*, 715 (1-3), .
(doi:10.1016/j.physletb.2012.07.066).

## Abstract

In the context of the Supersymmetric (SUSY) B-L (Baryon minus Lepton number) model with an inverse seesaw mechanism, we calculate the one-loop radiative corrections due to right-handed (s)neutrinos to the mass of the lightest Higgs boson when the latter is Standard Model (SM)-like. We show that such effects can be as large as *O*(100) GeV, thereby giving an absolute upper limit on such a mass around 200 GeV. The importance of this result from a phenomenological point of view is twofold. On the one hand, this enhancement greatly reconciles theory and experiment, by alleviating the so-called 'little hierarchy problem' of the minimal SUSY realization, whereby the current experimental limit on the SM-like Higgs mass is very near its absolute upper limit predicted theoretically, of 130 GeV. On the other hand, a SM-like Higgs boson with mass below 200 GeV is still well within the reach of the Large Hadron Collider (LHC), so that the SUSY realization discussed here is just as testable as the minimal version.

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## More information

Published date: August 2012

Organisations:
Physics & Astronomy

## Identifiers

Local EPrints ID: 356701

URI: http://eprints.soton.ac.uk/id/eprint/356701

ISSN: 0370-2693

PURE UUID: 76b4ece4-7124-47bd-8632-458970efe263

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Date deposited: 08 Oct 2013 10:37

Last modified: 16 Jul 2019 21:23

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## Contributors

Author:
A. Elsayed

Author:
S. Khalil

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