Banerjee, Shankha ; Dev, P. S. Bhupal ; Mondal, Subhadeep ; Mukhopadhyaya, Biswarup ; Roy, Sourov (2013) Invisible Higgs decay in a supersymmetric inverse seesaw model with light sneutrino dark matter Journal of High Energy Physics, 2013 (10). Article ID 221. ISSN 1029-8479
|
PDF
- Publisher Version
6MB |
Official URL: https://link.springer.com/article/10.1007/JHEP10(2...
Related URL: http://dx.doi.org/10.1007/JHEP10(2013)221
Abstract
Within the framework of a constrained Minimal Supersymmetric Standard Model (cMSSM) augmented by an MSSM singlet-pair sector to account for the non-zero neutrino masses by inverse seesaw mechanism, the lightest supersymmetric particle (LSP) can be a mixed sneutrino with mass as small as 50 GeV, satisfying all existing constraints, thus qualifying as a light dark matter candidate. We study the possibility of the lightest neutral Higgs boson in this model decaying invisibly into a pair of sneutrino LSPs, thereby giving rise to novel missing energy signatures at the LHC. We perform a two-parameter global analysis of the LHC Higgs data available till date to determine the optimal invisible Higgs branching fraction in this scenario, and obtain a 2σ (1σ) upper limit of 0.25 (0.15). A detailed cut-based analysis is carried out thereafter, demonstrating the viability of our proposed signal vis-a-vis backgrounds at the LHC.
Item Type: | Article |
---|---|
Source: | Copyright of this article belongs to Springer Verlag. |
Keywords: | Supersymmetry Phenomenology |
ID Code: | 114535 |
Deposited On: | 05 Jun 2018 06:00 |
Last Modified: | 05 Jun 2018 06:00 |
Repository Staff Only: item control page