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Type: Journal article
Title: Measurement of the relative B±c/B± production cross section with the ATLAS detector at √s=8 TeV
Other Titles: Measurement of the relative B-c(+/-)/B-+/- production cross section with the ATLAS detector at root s=8 TeV
Author: Aaboud, M.
Aad, G.
Abbott, B.
Abbott, D.C.
Abdinov, O.
Abud, A.A.
Abhayasinghe, D.K.
Abidi, S.H.
AbouZeid, O.S.
Abraham, N.L.
Abramowicz, H.
Abreu, H.
Abulaiti, Y.
Acharya, B.S.
Adachi, S.
Adam, L.
Bourdarios, C.A.
Adamczyk, L.
Adamek, L.
Adelman, J.
et al.
Citation: Physical Review D: Particles, Fields, Gravitation and Cosmology, 2021; 104(1):1-26
Publisher: American Physical Society
Issue Date: 2021
ISSN: 1550-2368
Statement of
M. Aaboud, G. Aad, B. Abbott ... Paul Jackson ... Harish Potti ... Martin White ... et al.
Abstract: The total cross section and differential cross sections for the production of B±c mesons, times their branching fraction to J/ψπ±, are measured relative to those for the production of B± mesons, times their branching fraction to J/ψK±. The data used for this study correspond to an integrated luminosity of 20.3  fb−1 of pp collisions recorded by the ATLAS detector at the Large Hadron Collider in 2012 at a center-of-mass energy of √s=8  TeV. The measurement is performed differentially in bins of transverse momentum pT for 13  GeV<pT(B±c)<22  GeV and pT(B±c)>22  GeV and in bins of rapidity y for |y|<0.75 and 0.75<|y|<2.3. The relative cross section times branching fraction for the full range pT>13  GeV and |y|<2.3 is (0.34±0.04stat +0.06−0.02sys±0.01lifetime)%. The differential measurements suggest that the production cross section of the B±c decreases faster with pT than the production cross section of the B±, while no significant dependence on rapidity is observed.
Rights: © 2021 CERN, for the ATLAS Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
DOI: 10.1103/PhysRevD.104.012010
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