Volume 314 - The European Physical Society Conference on High Energy Physics (EPS-HEP2017) - Higgs and New Physics (Parallel Session). Conveners: Andre David; Marie-Helene Genest; Giuliano Panico. Scientific Secretary: Roberto Rossin.
Search for Higgs-like particle produced in association with b quarks and measurement of Zbˉb cross section at CDF II
E. Michielin*  on behalf of the CDF Collaboration
*: corresponding author
Full text: pdf
Pre-published on: November 28, 2017
Published on: March 20, 2018
Abstract
We present a search for a Higgs-like particle ϕ decaying into bˉb produced in association with b quarks in pˉp collisions. The event sample corresponds to 5.4 fb1 of integrated luminosity collected with the CDF II detector at the Tevatron collider using a single b tagged jet trigger. We search for an enhancement in the mass of the two leading jets in event with at least three jets identified as coming from b quarks. A data-driven procedure is applied to estimate the dijet mass spectrum of the non-resonant multijet background, which has been used to measure the production cross-section of the Z decaying into bˉb in the same sample but with at least two b-jets. We set one of the most stringent upper limits on σ(pˉpϕb)×B(ϕbˉb) in the 100300 GeV/c2 mass range.
DOI: https://doi.org/10.22323/1.314.0317
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