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Title: | Search for low-mass resonances decaying into bottom quark-antiquark pairs in proton-proton collisions at s =13 TeV |
Authors: | Brochero Cifuentes, J. A. ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Issue Date: | 9-Jan-2019 |
Publisher: | American Physical Society |
Citation: | Physical Review D 99: 012005 (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. |
Publisher version (URL): | http://dx.doi.org/10.1103/PhysRevD.99.012005 |
URI: | http://hdl.handle.net/10261/213330 |
DOI: | http://dx.doi.org/10.1103/PhysRevD.99.012005 |
Identifiers: | doi: 10.1103/PhysRevD.99.012005 e-issn: 2470-0029 issn: 2470-0010 |
Appears in Collections: | (IFCA) Artículos |
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Search_low.pdf | 2,05 MB | Adobe PDF | ![]() View/Open |
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