First measurement of the forward-backward asymmetry in bottom-quark pair production at high mass

CDF Collaboration

doi:10.1103/PhysRevD.92.032006

First measurement of the forward-backward asymmetry in bottom-quark pair production at high mass

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
Comenius University
Slovak Academy of Sciences
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
Korea Institute of Science and Technology Information
Chonnam National University
Jeonbuk National University
Ewha Womans University
Lawrence Berkeley National Laboratory
Purdue University
Johns Hopkins University
University of Siena
University of Pisa
University of Wisconsin-Madison
Duke University
Rockefeller University
Baylor University
University of Rochester
University of Pittsburgh
The University of Chicago
University of Bologna
Michigan State University
University of Glasgow
Carnegie Mellon University
Autonomous University of Barcelona

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

We measure the particle-level forward-backward production asymmetry in bb¯ pairs with masses (mbb¯) larger than 150 GeV/c2, using events with hadronic jets and employing jet charge to distinguish b from b¯. The measurement uses 9.5 fb-1 of pp¯ collisions at a center-of-mass energy of 1.96 TeV recorded by the CDF II detector. The asymmetry as a function of mbb¯ is consistent with zero, as well as with the predictions of the standard model. The measurement disfavors a simple model including an axigluon with a mass of 200 GeV/c2, whereas a model containing a heavier 345 GeV/c2 axigluon is not excluded.

Original language	English
Article number	032006
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	92
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.92.032006
State	Published - 18 Aug 2015

Access to Document

10.1103/PhysRevD.92.032006

Cite this

@article{d14214427738474aa557dde6a36ce649,

title = "First measurement of the forward-backward asymmetry in bottom-quark pair production at high mass",

abstract = "We measure the particle-level forward-backward production asymmetry in bb¯ pairs with masses (mbb¯) larger than 150 GeV/c2, using events with hadronic jets and employing jet charge to distinguish b from b¯. The measurement uses 9.5 fb-1 of pp¯ collisions at a center-of-mass energy of 1.96 TeV recorded by the CDF II detector. The asymmetry as a function of mbb¯ is consistent with zero, as well as with the predictions of the standard model. The measurement disfavors a simple model including an axigluon with a mass of 200 GeV/c2, whereas a model containing a heavier 345 GeV/c2 axigluon is not excluded.",

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} 2015 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}http://creativecommons.org/licenses/by/3.0/{"} Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",

year = "2015",

month = aug,

day = "18",

doi = "10.1103/PhysRevD.92.032006",

language = "English",

volume = "92",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

publisher = "American Physical Society",

number = "3",

}

TY - JOUR

T1 - First measurement of the forward-backward asymmetry in bottom-quark pair production at high mass

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.

N1 - Publisher Copyright: © 2015 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "http://creativecommons.org/licenses/by/3.0/" Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

PY - 2015/8/18

Y1 - 2015/8/18

N2 - We measure the particle-level forward-backward production asymmetry in bb¯ pairs with masses (mbb¯) larger than 150 GeV/c2, using events with hadronic jets and employing jet charge to distinguish b from b¯. The measurement uses 9.5 fb-1 of pp¯ collisions at a center-of-mass energy of 1.96 TeV recorded by the CDF II detector. The asymmetry as a function of mbb¯ is consistent with zero, as well as with the predictions of the standard model. The measurement disfavors a simple model including an axigluon with a mass of 200 GeV/c2, whereas a model containing a heavier 345 GeV/c2 axigluon is not excluded.

AB - We measure the particle-level forward-backward production asymmetry in bb¯ pairs with masses (mbb¯) larger than 150 GeV/c2, using events with hadronic jets and employing jet charge to distinguish b from b¯. The measurement uses 9.5 fb-1 of pp¯ collisions at a center-of-mass energy of 1.96 TeV recorded by the CDF II detector. The asymmetry as a function of mbb¯ is consistent with zero, as well as with the predictions of the standard model. The measurement disfavors a simple model including an axigluon with a mass of 200 GeV/c2, whereas a model containing a heavier 345 GeV/c2 axigluon is not excluded.

UR - https://www.scopus.com/pages/publications/84940470169

U2 - 10.1103/PhysRevD.92.032006

DO - 10.1103/PhysRevD.92.032006

M3 - Article

AN - SCOPUS:84940470169

SN - 1550-7998

VL - 92

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 3

M1 - 032006

ER -

First measurement of the forward-backward asymmetry in bottom-quark pair production at high mass

Abstract

Access to Document

Other files and links

Fingerprint

Cite this