Search for low-mass resonances decaying into bottom quark-antiquark pairs in proton-proton collisions at s =13 TeV
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 ffiffi s p ¼ 13 TeV proton-proton collisions with the CMS detector at the LHC, collected in 2016, and corresponding to an integrated...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English English |
| Published: |
American Physical Society
2019
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/71629/ http://irep.iium.edu.my/71629/ http://irep.iium.edu.my/71629/ http://irep.iium.edu.my/71629/1/71629_Search%20for%20low-mass%20resonances%20decaying_article.pdf http://irep.iium.edu.my/71629/2/71629_Search%20for%20low-mass%20resonances%20decaying_wos.pdf http://irep.iium.edu.my/71629/3/71629_Search%20for%20low-mass%20resonances%20decaying_scopus.pdf |
| Summary: | 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 ffiffi
s p ¼ 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 quarkantiquark pair. These constitute the first constraints from the LHC on exotic bottom quark-antiquark
resonances with masses below 325 GeV. |
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