Measurement of the forward-backward asymmetry in low-mass bottom-quark pairs produced in proton-antiproton collisions



Aaltonen, T, Amerio, S, Amidei, D, Anastassov, A, Annovi, A, Antos, J, Apollinari, G, Appel, JA, Arisawa, T, Artikov, A
et al (show 387 more authors) (2016) Measurement of the forward-backward asymmetry in low-mass bottom-quark pairs produced in proton-antiproton collisions. PHYSICAL REVIEW D, 93 (11). 112003-.

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Abstract

We report a measurement of the forward-backward asymmetry, $A_{FB}$, in $b\bar{b}$ pairs produced in proton-antiproton collisions and identified by muons from semileptonic $b$-hadron decays. The event sample was collected at a center-of-mass energy of $\sqrt{s}=1.96$ TeV with the CDF II detector and corresponds to 6.9 fb$^{-1}$ of integrated luminosity. We obtain an integrated asymmetry of $A_{FB}(b\bar{b})=(1.2 \pm 0.7)$\% at the particle level for $b$-quark pairs with invariant mass, $m_{b\bar{b}}$, down to $40$ GeV/$c^2$ and measure the dependence of $A_{FB}(b\bar{b})$ on $m_{b\bar{b}}$. The results are compatible with expectations from the standard model.

Item Type: Article
Additional Information: submitted to Phys. Rev. D
Uncontrolled Keywords: hep-ex, hep-ex
Depositing User: Symplectic Admin
Date Deposited: 15 Jan 2019 09:43
Last Modified: 15 Mar 2024 05:49
DOI: 10.1103/PhysRevD.93.112003
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3031270

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