A search for narrow, low-mass, scalar, and pseudoscalar resonances decaying to bottom quark-antiquark pairs is presented. The search is based on events recorded in √𝑠=13  TeV proton-proton collisions with the CMS detector at the LHC, collected in 2016, and corresponding to an integrated luminosity of 35.9  fb−1. The search selects events in which the resonance would be produced with high transverse momentum because of the presence of initial- or final-state radiation. In such events, the decay products of the resonance would be reconstructed as a single large-radius jet with high mass and two-prong substructure. A potential signal would be identified as a narrow excess in the jet invariant mass spectrum. No evidence for such a resonance is observed within the mass range from 50 to 350 GeV, and upper limits at 95% confidence level are set on the product of the cross section and branching fraction to a bottom quark-antiquark pair. These constitute the first constraints from the LHC on exotic bottom quark-antiquark resonances with masses below 325 GeV.

Sirunyan, A., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., et al. (2019). Search for low-mass resonances decaying into bottom quark-antiquark pairs in proton-proton collisions at √𝑠=13  TeV. PHYSICAL REVIEW D, 99(1), 012005-1-012005-25 [10.1103/PhysRevD.99.012005].

Search for low-mass resonances decaying into bottom quark-antiquark pairs in proton-proton collisions at √𝑠=13  TeV

Battilana, C.;Bonacorsi, D.;Borgonovi, L.;Braibant-Giacomelli, S.;Campanini, R.;Capiluppi, P.;Castro, A.;Chhibra, S. S.;Ciocca, C.;Codispoti, G.;Cuffiani, M.;Fanfani, A.;Fontanesi, E.;Guiducci, L.;Iemmi, F.;Lo Meo, S.;Navarria, F. L.;Primavera, F.;Rovelli, T.;Siroli, G. P.;Tosi, N.;
2019

Abstract

A search for narrow, low-mass, scalar, and pseudoscalar resonances decaying to bottom quark-antiquark pairs is presented. The search is based on events recorded in √𝑠=13  TeV proton-proton collisions with the CMS detector at the LHC, collected in 2016, and corresponding to an integrated luminosity of 35.9  fb−1. The search selects events in which the resonance would be produced with high transverse momentum because of the presence of initial- or final-state radiation. In such events, the decay products of the resonance would be reconstructed as a single large-radius jet with high mass and two-prong substructure. A potential signal would be identified as a narrow excess in the jet invariant mass spectrum. No evidence for such a resonance is observed within the mass range from 50 to 350 GeV, and upper limits at 95% confidence level are set on the product of the cross section and branching fraction to a bottom quark-antiquark pair. These constitute the first constraints from the LHC on exotic bottom quark-antiquark resonances with masses below 325 GeV.
2019
Sirunyan, A., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., et al. (2019). Search for low-mass resonances decaying into bottom quark-antiquark pairs in proton-proton collisions at √��=13  TeV. PHYSICAL REVIEW D, 99(1), 012005-1-012005-25 [10.1103/PhysRevD.99.012005].
Sirunyan, A.M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Dragicevic, M.; Erö, J.; Escalante Del Valle, A.; Fle...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/666566
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