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

(CDF Collaboration)

doi:10.1103/PhysRevD.93.112003

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

(CDF Collaboration)

Department of Physics

University of Helsinki
National Institute for Nuclear Physics
University of Padua
University of Michigan, Ann Arbor
Fermi National Accelerator Laboratory
Northwestern University
Comenius University
Waseda University
Joint Institute for Nuclear Research
Texas A&M University
Argonne National Laboratory
University of Oxford
Kyungpook National University
Seoul National University
Sungkyunkwan University
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Chonnam National University
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Lawrence Berkeley National Laboratory
Purdue University
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Duke University
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University of Bologna
Michigan State University
University of Glasgow
Carnegie Mellon University
Autonomous University of Barcelona

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4 Scopus citations

Abstract

We report a measurement of the forward-backward asymmetry, AFB, in bb pairs produced in proton-antiproton collisions and identified by muons from semileptonic b-hadron decays. The event sample is collected at a center-of-mass energy of 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 AFB(bb)=(1.2±0.7)% at the particle level for b-quark pairs with invariant mass, mbb, down to 40 GeV/c2 and measure the dependence of AFB(bb) on mbb. The results are compatible with expectations from the standard model.

Original language	English
Article number	112003
Journal	Physical Review D
Volume	93
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevD.93.112003
State	Published - 2 Jun 2016

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10.1103/PhysRevD.93.112003

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@article{5108833f72e14d8095fdb3ec080d9954,

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

abstract = "We report a measurement of the forward-backward asymmetry, AFB, in bb pairs produced in proton-antiproton collisions and identified by muons from semileptonic b-hadron decays. The event sample is collected at a center-of-mass energy of 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 AFB(bb)=(1.2±0.7)\% at the particle level for b-quark pairs with invariant mass, mbb, down to 40 GeV/c2 and measure the dependence of AFB(bb) on mbb. The results are compatible with expectations from the standard model.",

author = "\{(CDF Collaboration)\} and T. Aaltonen and S. Amerio and D. Amidei and A. Anastassov and A. Annovi and J. Antos and G. Apollinari and Appel, \{J. A.\} and T. Arisawa and A. Artikov and J. Asaadi and W. Ashmanskas and B. Auerbach and A. Aurisano and F. Azfar and W. Badgett and T. Bae and A. Barbaro-Galtieri and Barnes, \{V. E.\} and Barnett, \{B. A.\} and P. Barria and P. Bartos and M. Bauce and F. Bedeschi and S. Behari and G. Bellettini and J. Bellinger and D. Benjamin and A. Beretvas and A. Bhatti and Bland, \{K. R.\} and B. Blumenfeld and A. Bocci and A. Bodek and D. Bortoletto and J. Boudreau and A. Boveia and L. Brigliadori and C. Bromberg and E. Brucken and J. Budagov and Budd, \{H. S.\} and K. Burkett and G. Busetto and P. Bussey and P. Butti and A. Buzatu and A. Calamba and S. Camarda and Lee, \{J. S.\}",

note = "Publisher Copyright: {\textcopyright} 2016 American Physical Society.",

year = "2016",

month = jun,

day = "2",

doi = "10.1103/PhysRevD.93.112003",

language = "English",

volume = "93",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "11",

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TY - JOUR

T1 - Measurement of the forward-backward asymmetry in low-mass bottom-quark pairs produced in proton-antiproton collisions

AU - (CDF Collaboration)

AU - Aaltonen, T.

AU - Amerio, S.

AU - Amidei, D.

AU - Anastassov, A.

AU - Annovi, A.

AU - Antos, J.

AU - Apollinari, G.

AU - Appel, J. A.

AU - Arisawa, T.

AU - Artikov, A.

AU - Asaadi, J.

AU - Ashmanskas, W.

AU - Auerbach, B.

AU - Aurisano, A.

AU - Azfar, F.

AU - Badgett, W.

AU - Bae, T.

AU - Barbaro-Galtieri, A.

AU - Barnes, V. E.

AU - Barnett, B. A.

AU - Barria, P.

AU - Bartos, P.

AU - Bauce, M.

AU - Bedeschi, F.

AU - Behari, S.

AU - Bellettini, G.

AU - Bellinger, J.

AU - Benjamin, D.

AU - Beretvas, A.

AU - Bhatti, A.

AU - Bland, K. R.

AU - Blumenfeld, B.

AU - Bocci, A.

AU - Bodek, A.

AU - Bortoletto, D.

AU - Boudreau, J.

AU - Boveia, A.

AU - Brigliadori, L.

AU - Bromberg, C.

AU - Brucken, E.

AU - Budagov, J.

AU - Budd, H. S.

AU - Burkett, K.

AU - Busetto, G.

AU - Bussey, P.

AU - Butti, P.

AU - Buzatu, A.

AU - Calamba, A.

AU - Camarda, S.

AU - Lee, J. S.

PY - 2016/6/2

Y1 - 2016/6/2

N2 - We report a measurement of the forward-backward asymmetry, AFB, in bb pairs produced in proton-antiproton collisions and identified by muons from semileptonic b-hadron decays. The event sample is collected at a center-of-mass energy of 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 AFB(bb)=(1.2±0.7)% at the particle level for b-quark pairs with invariant mass, mbb, down to 40 GeV/c2 and measure the dependence of AFB(bb) on mbb. The results are compatible with expectations from the standard model.

AB - We report a measurement of the forward-backward asymmetry, AFB, in bb pairs produced in proton-antiproton collisions and identified by muons from semileptonic b-hadron decays. The event sample is collected at a center-of-mass energy of 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 AFB(bb)=(1.2±0.7)% at the particle level for b-quark pairs with invariant mass, mbb, down to 40 GeV/c2 and measure the dependence of AFB(bb) on mbb. The results are compatible with expectations from the standard model.

UR - https://www.scopus.com/pages/publications/84974816761

U2 - 10.1103/PhysRevD.93.112003

DO - 10.1103/PhysRevD.93.112003

M3 - Article

AN - SCOPUS:84974816761

SN - 2470-0010

VL - 93

JO - Physical Review D

JF - Physical Review D

IS - 11

M1 - 112003

ER -

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

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