Search for Higgs-like particles produced in association with bottom quarks in proton-antiproton collisions
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PhysRevD.99.052001.pdf
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Author(s)
Aaltonen, T.
Amerio, S.
Amidei, D.
Anastassov, A.
Annovi, A.
Antos, J.
Apollinari, G.
Appel, J. A.
Arisawa, T.
Artikov, A.
Date Issued
March 2019
Journal
Physical Review D
Publisher
American Physical Society
Citation
Aaltonen, T. et al. "Search for Higgs-like particles produced in association with bottom quarks in proton-antiproton collisions." Physical Review D 99, 5 (March 2019): 052001
Version
Final published version
Abstract
We report on a search for a spin-zero non–standard model particle in proton-antiproton collisions collected by the Collider Detector at Fermilab at a center-of-mass-energy of 1.96 TeV. This particle, the ϕ boson, is expected to decay into a bottom-antibottom quark pair and to be produced in association with at least one bottom quark. The data sample consists of events with three jets identified as initiated by bottom quarks and corresponds to 5.4 fb⁻¹ of integrated luminosity. In each event, the invariant mass of the two most energetic jets is studied by looking for deviations from the multijet background, which is modeled using data. No evidence is found for such a particle. Exclusion upper limits ranging from 20 to 2 pb are set for the product of production cross sections times branching fraction for the hypothetical ϕ boson with mass between 100 and 300 GeV/c². These are the most stringent constraints to date.
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.99.052001
