Search for exotic decays of the Higgs boson into b b¯ and missing transverse momentum in pp collisions at √s = 13 TeV with the ATLAS detector
Authors
Alunno Camelia, E
Amelung, C
Amrouche, CS
Andrei, V
Publication Date
2022-01-13Journal Title
Journal of High Energy Physics
ISSN
1029-8479
Publisher
Springer Science and Business Media LLC
Volume
2022
Issue
1
Language
en
Type
Article
This Version
VoR
Metadata
Show full item recordCitation
Aad, G., Abbott, B., Abbott, D., Abed Abud, A., Abeling, K., Abhayasinghe, D., Abidi, S., et al. (2022). Search for exotic decays of the Higgs boson into b b¯ and missing transverse momentum in pp collisions at √s = 13 TeV with the ATLAS detector. Journal of High Energy Physics, 2022 (1) https://doi.org/10.1007/JHEP01(2022)063
Abstract
A search for the exotic decay of the Higgs boson ($H$) into a $b\bar{b}$
resonance plus missing transverse momentum is described. The search is
performed with the ATLAS detector at the Large Hadron Collider using 139
$\mathrm{fb}^{-1}$ of $pp$ collisions at $\sqrt{s} = 13$ TeV. The search
targets events from $ZH$ production in an NMSSM scenario where $H \rightarrow
\tilde{\chi}^{0}_{2}\tilde{\chi}^{0}_{1}$, with $\tilde{\chi}^{0}_{2}
\rightarrow {a} \tilde{\chi}^{0}_{1}$, where $a$ is a light pseudoscalar Higgs
boson and $\tilde{\chi}^{0}_{1,2}$ are the two lightest neutralinos. The decay
of the $a$ boson into a pair of $b$-quarks results in a peak in the dijet
invariant mass distribution. The final-state signature consists of two leptons,
two or more jets, at least one of which is identified as originating from a
$b$-quark, and missing transverse momentum. Observations are consistent with
Standard Model expectations and upper limits are set on the product of cross
section times branching ratio for a three-dimensional scan of the masses of the
$\tilde{\chi}^{0}_{2}$, $\tilde{\chi}^{0}_{1}$ and $a$ boson.
Keywords
Regular Article - Experimental Physics, Hadron-Hadron scattering (experiments), Supersymmetry, Beyond Standard Model
Identifiers
jhep01(2022)063, 17555
External DOI: https://doi.org/10.1007/JHEP01(2022)063
This record's URL: https://www.repository.cam.ac.uk/handle/1810/333175
Rights
Licence:
http://creativecommons.org/licenses/by/4.0/
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