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
Creators: name: Aad, G
name: Abbott, B
name: Abbott, DC
name: Abed Abud, A
name: Abeling, K
name: Abhayasinghe, DK
name: Abidi, SH
name: Abramowicz, H
name: Abreu, H
name: Abulaiti, Y
name: Abusleme Hoffman, AC
name: Acharya, BS
name: Achkar, B
name: Adam, L
name: Adam Bourdarios, C
name: Adamczyk, L
name: Adamek, L
name: Addepalli, SV
name: Adelman, J
name: Adiguzel, A
name: Adorni, S
name: Adye, T
name: Affolder, AA
name: Afik, Y
name: Agapopoulou, C
name: Agaras, MN
name: Agarwala, J
name: Aggarwal, A
name: Agheorghiesei, C
name: Aguilar-Saavedra, JA
name: Ahmad, A
name: Ahmadov, F
name: Ahmed, WS
name: Ai, X
name: Aielli, G
name: Aizenberg, I
name: Akatsuka, S
name: Akbiyik, M
name: Åkesson, TPA
name: Akimov, AV
name: Al Khoury, K
name: Alberghi, GL
name: Albert, J
name: Alconada Verzini, MJ
name: Alderweireldt, S
name: Aleksa, M
name: Aleksandrov, IN
name: Alexa, C
name: Alexopoulos, T
name: Alfonsi, A
name: Alfonsi, F
name: Alhroob, M
name: Ali, B
name: Ali, S
name: Aliev, M
name: Alimonti, G
name: Allaire, C
name: Allbrooke, BMM
name: Allport, PP
name: Aloisio, A
name: Alonso, F
name: Alpigiani, C
name: Alunno Camelia, E
name: Alvarez Estevez, M
name: Alviggi, MG
name: Amaral Coutinho, Y
name: Ambler, A
name: Ambroz, L
name: Amelung, C
name: Amidei, D
name: Amor Dos Santos, SP
name: Amoroso, S
name: Amrouche, CS
name: Anastopoulos, C
name: Andari, N
name: Andeen, T
name: Anders, JK
name: Andrean, SY
name: Andreazza, A
name: Andrei, V
name: Angelidakis, S
name: Angerami, A
name: Anisenkov, AV
name: Annovi, A
name: Antel, C
name: Anthony, MT
name: Antipov, E
name: Antonelli, M
name: Antrim, DJA
name: Anulli, F
name: Aoki, M
name: Aparisi Pozo, JA
name: Aparo, MA
name: Aperio Bella, L
name: Aranzabal, N
name: Araujo Ferraz, V
name: Arcangeletti, C
name: Arce, ATH
name: Arena, E
name: Arguin, JF
Publisher: name: Apollo - University of Cambridge Repository
Year: 2022
Subjects: Regular Article - Experimental Physics
Hadron-Hadron scattering (experiments)
Supersymmetry
Beyond Standard Model

description: 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.