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LHC signals of a BLSSM CP-even Higgs boson

LHC signals of a BLSSM CP-even Higgs boson
LHC signals of a BLSSM CP-even Higgs boson
We study the scope of the Large Hadron Collider in accessing a neutral Higgs boson of the $B-L$ Supersymmetric Standard Model. After assessing the surviving parameter space configurations following the Run 1 data taking, we investigate the possibilities of detecting this object during Run 2. For the model configurations in which the mixing between such a state and the discovered Standard Model-like Higgs boson is non-negligible, there exist several channels enabling its discovery over a mass range spanning from $\approx 140$ to $\approx$ 500 GeV. For a lighter Higgs state, with mass of order 140 GeV, three channels are accessible: $\gamma\gamma$, $Z\gamma$ and $ZZ$, wherein the $Z$ boson decays leptonically. For a heavier Higgs state, with mass above 250 GeV (i.e., twice the mass of the Higgs state discovered in 2012), the hallmark signature is its decay in two such 125 GeV scalars, $h'\to hh$, where $hh\to b\bar b \gamma\gamma$. In all such cases, significances above discovery can occur for already planned luminosities at the CERN machine.
hep-ph
2470-0010
Hammad, A.
08f4a260-b5e7-404f-aa33-131cb5097394
Khalil, S.
6021465e-2f5d-4677-846d-05aebc4499f6
Moretti, S.
b57cf0f0-4bc3-4e02-96e3-071255366614
Hammad, A.
08f4a260-b5e7-404f-aa33-131cb5097394
Khalil, S.
6021465e-2f5d-4677-846d-05aebc4499f6
Moretti, S.
b57cf0f0-4bc3-4e02-96e3-071255366614

Hammad, A., Khalil, S. and Moretti, S. (2016) LHC signals of a BLSSM CP-even Higgs boson. Physical Review D, 93, [115035]. (doi:10.1103/PhysRevD.93.115035).

Record type: Article

Abstract

We study the scope of the Large Hadron Collider in accessing a neutral Higgs boson of the $B-L$ Supersymmetric Standard Model. After assessing the surviving parameter space configurations following the Run 1 data taking, we investigate the possibilities of detecting this object during Run 2. For the model configurations in which the mixing between such a state and the discovered Standard Model-like Higgs boson is non-negligible, there exist several channels enabling its discovery over a mass range spanning from $\approx 140$ to $\approx$ 500 GeV. For a lighter Higgs state, with mass of order 140 GeV, three channels are accessible: $\gamma\gamma$, $Z\gamma$ and $ZZ$, wherein the $Z$ boson decays leptonically. For a heavier Higgs state, with mass above 250 GeV (i.e., twice the mass of the Higgs state discovered in 2012), the hallmark signature is its decay in two such 125 GeV scalars, $h'\to hh$, where $hh\to b\bar b \gamma\gamma$. In all such cases, significances above discovery can occur for already planned luminosities at the CERN machine.

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More information

Accepted/In Press date: 16 April 2016
e-pub ahead of print date: 27 June 2016
Keywords: hep-ph
Organisations: Theory Group

Identifiers

Local EPrints ID: 411854
URI: http://eprints.soton.ac.uk/id/eprint/411854
ISSN: 2470-0010
PURE UUID: bcba202f-2b81-491a-8050-845aaace1850

Catalogue record

Date deposited: 27 Jun 2017 16:31
Last modified: 09 Nov 2021 11:28

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Contributors

Author: A. Hammad
Author: S. Khalil
Author: S. Moretti

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