A search for the exotic decay of the Higgs boson (H) into a bb¯ resonance plus missing transverse momentum is described. The search is performed with the ATLAS detector at the Large Hadron Collider using 139 fb−1 of pp collisions at s = 13 TeV. The search targets events from ZH production in an NMSSM scenario where H → χ~20χ~10, with χ~20→aχ~10, where a is a light pseudoscalar Higgs boson and χ~1,20 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 χ~20, χ~10 and a boson. [Figure not available: see fulltext.]
Search for exotic decays of Higgs boson into b b¯ and missing transverse momentum in pp collisions at √s = 13 TeV with the ATLAS detector [Search for exotic decays of the Higgs boson into b(b)over-bar and missing transverse momentum in pp collisions at root s=13 TeV with the ATLAS detector] / G. Aad, B.A.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2022:1(2022 Jan 13), pp. 063.1-063.38. [10.1007/JHEP01(2022)063]
Search for exotic decays of Higgs boson into b b¯ and missing transverse momentum in pp collisions at √s = 13 TeV with the ATLAS detector [Search for exotic decays of the Higgs boson into b(b)over-bar and missing transverse momentum in pp collisions at root s=13 TeV with the ATLAS detector]
A. AndreazzaMembro del Collaboration Group
;E. BallabeneMembro del Collaboration Group
;A. CarboneMembro del Collaboration Group
;L. CarminatiMembro del Collaboration Group
;S. D'AuriaMembro del Collaboration Group
;L. Dell'AstaMembro del Collaboration Group
;M. FantiMembro del Collaboration Group
;M. LazzaroniMembro del Collaboration Group
;C. Meroni;D.P. MungoMembro del Collaboration Group
;A. MurroneMembro del Collaboration Group
;L. PeriniMembro del Collaboration Group
;F. PiazzaMembro del Collaboration Group
;F. RagusaMembro del Collaboration Group
;A. StabileMembro del Collaboration Group
;
2022
Abstract
A search for the exotic decay of the Higgs boson (H) into a bb¯ resonance plus missing transverse momentum is described. The search is performed with the ATLAS detector at the Large Hadron Collider using 139 fb−1 of pp collisions at s = 13 TeV. The search targets events from ZH production in an NMSSM scenario where H → χ~20χ~10, with χ~20→aχ~10, where a is a light pseudoscalar Higgs boson and χ~1,20 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 χ~20, χ~10 and a boson. [Figure not available: see fulltext.]| File | Dimensione | Formato | |
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Aad2022_Article_SearchForExoticDecaysOfTheHigg.pdf
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