Forward-backward asymmetry in top quark-antiquark production

Abazov, Victor Mukhamedovich

doi:10.1103/PhysRevD.84.112005

Title: Forward-backward asymmetry in top quark-antiquark production

Journal Article · Mon Dec 12 00:00:00 UTC 2011 · Physical Review. D, Particles, Fields, Gravitation and Cosmology

DOI: https://doi.org/10.1103/PhysRevD.84.112005 · OSTI ID:1021499

Abazov, Victor Mukhamedovich ^[1]

et al.

We present a measurement of forward-backward asymmetry in top quark-antiquark production in proton-antiproton collisions in the final state containing a lepton and at least four jets. Using a dataset corresponding to an integrated luminosity of 5.4 fb^-1, collected by the D0 experiment at the Fermilab Tevatron Collider, we measure the t{bar t} forward-backward asymmetry to be (9.2 ± 3.7)% at the reconstruction level. When corrected for detector acceptance and resolution, the asymmetry is found to be (19.6 ± 6.5)%. We also measure a corrected asymmetry based on the lepton from a top quark decay, found to be (15.2 ± 4.0)%. The results are compared to predictions based on the next-to-leading-order QCD generator mc@nlo. The sensitivity of the measured and predicted asymmetries to the modeling of gluon radiation is discussed.

View Accepted Manuscript (DOE)

Cite

Export

Save

Research Organization:: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

Sponsoring Organization:: USDOE; USDOE Office of Science (SC)

Contributing Organization:: D0 Collaboration

Grant/Contract Number:: AC02-07CH11359

OSTI ID:: 1021499

Report Number(s):: FERMILAB-PUB--11-347-E; arXiv eprint number arXiv:1107.4995

Journal Information:: Physical Review. D, Particles, Fields, Gravitation and Cosmology, Journal Name: Physical Review. D, Particles, Fields, Gravitation and Cosmology Journal Issue: 11 Vol. 84; ISSN 1550-7998

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

References (34)

The DØ detector Abachi, S.; Abolins, M.; Acharya, B. S. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 338, Issue 2-3 https://doi.org/10.1016/0168-9002(94)91312-9	journal	January 1994
High-energy-physics event generation with Pythia 6.1 Sjöstrand, Torbjörn; Edén, Patrik; Friberg, Christer Computer Physics Communications, Vol. 135, Issue 2 https://doi.org/10.1016/S0010-4655(00)00236-8	journal	April 2001
The muon system of the Run II DØdetector Abazov, V. M.; Acharya, B. S.; Alexeev, G. D. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 552, Issue 3 https://doi.org/10.1016/j.nima.2005.07.008	journal	November 2005
The upgraded DØ detector Abazov, V. M.; Abbott, B.; Abolins, M. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 565, Issue 2 https://doi.org/10.1016/j.nima.2006.05.248	journal	September 2006
Design and implementation of the new D0 level-1 calorimeter trigger Abolins, M.; Adams, M.; Adams, T. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 584, Issue 1 https://doi.org/10.1016/j.nima.2007.10.014	journal	January 2008
b-Jet identification in the D0 experiment Abazov, V. M.; Abbott, B.; Abolins, M. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 620, Issue 2-3 https://doi.org/10.1016/j.nima.2010.03.118	journal	August 2010
The layer 0 inner silicon detector of the D0 experiment Angstadt, R.; Bagby, L.; Bean, A. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 622, Issue 1 https://doi.org/10.1016/j.nima.2010.04.148	journal	October 2010
Distributions and correlations for top quark pair production and decay at the Tevatron and LHC Bernreuther, Werner; Si, Zong-Guo Nuclear Physics B, Vol. 837, Issue 1-2 https://doi.org/10.1016/j.nuclphysb.2010.05.001	journal	September 2010
NLO QCD corrections to top quark pair production in association with one hard jet at hadron colliders Melnikov, Kirill; Schulze, Markus Nuclear Physics B, Vol. 840, Issue 1-2 https://doi.org/10.1016/j.nuclphysb.2010.07.003	journal	November 2010
HERWIG 6: an event generator for hadron emission reactions with interfering gluons (including supersymmetric processes) Corcella, Gennaro; Knowles, Ian G.; Marchesini, Giuseppe Journal of High Energy Physics, Vol. 2001, Issue 01 https://doi.org/10.1088/1126-6708/2001/01/010	journal	January 2001
Matching NLO QCD computations and parton shower simulations Frixione, Stefano; Webber, Bryan R. Journal of High Energy Physics, Vol. 2002, Issue 06 https://doi.org/10.1088/1126-6708/2002/06/029	journal	June 2002
ALPGEN, a generator for hard multiparton processes in hadronic collisions Mangano, Michelangelo L.; Piccinini, Fulvio; Polosa, Antonio D. Journal of High Energy Physics, Vol. 2003, Issue 07 https://doi.org/10.1088/1126-6708/2003/07/001	journal	July 2003
Matching NLO QCD and parton showers in heavy flavour production Frixione, Stefano; Nason, Paolo; Webber, Bryan R. Journal of High Energy Physics, Vol. 2003, Issue 08 https://doi.org/10.1088/1126-6708/2003/08/007	journal	August 2003
Standard model top quark asymmetry at the Fermilab Tevatron Bowen, M. T.; Ellis, S. D.; Rainwater, D. Physical Review D, Vol. 73, Issue 1 https://doi.org/10.1103/PhysRevD.73.014008	journal	January 2006
Measurement of the t t ¯ production cross section in p p ¯ collisions at s = 1.96 TeV using kinematic characteristics of lepton + jets events Abazov, V. M.; Abbott, B.; Abolins, M. Physical Review D, Vol. 76, Issue 9 https://doi.org/10.1103/PhysRevD.76.092007	journal	November 2007
Forward-backward asymmetry of top quark production at the Tevatron in warped extra dimensional models Djouadi, Abdelhak; Moreau, Grégory; Richard, François Physical Review D, Vol. 82, Issue 7 https://doi.org/10.1103/PhysRevD.82.071702	journal	October 2010
Tuning Monte Carlo generators: The Perugia tunes Skands, Peter Z. Physical Review D, Vol. 82, Issue 7 https://doi.org/10.1103/PhysRevD.82.074018	journal	October 2010
Measurement of the W boson helicity in top quark decays using 5.4 fb − 1 of p p ¯ collision data Abazov, V. M.; Abbott, B.; Acharya, B. S. Physical Review D, Vol. 83, Issue 3 https://doi.org/10.1103/PhysRevD.83.032009	journal	February 2011
Evidence for a mass dependent forward-backward asymmetry in top quark pair production Aaltonen, T.; Álvarez González, B.; Amerio, S. Physical Review D, Vol. 83, Issue 11 https://doi.org/10.1103/PhysRevD.83.112003	journal	June 2011
On models of new physics for the Tevatron top A FB Gresham, Moira I.; Kim, Ian-Woo; Zurek, Kathryn M. Physical Review D, Vol. 83, Issue 11 https://doi.org/10.1103/PhysRevD.83.114027	journal	June 2011
Top quark rapidity distribution and forward-backward asymmetry Kidonakis, Nikolaos Physical Review D, Vol. 84, Issue 1 https://doi.org/10.1103/PhysRevD.84.011504	journal	July 2011
Measurement of the top quark pair production cross section in the lepton + jets channel in proton-antiproton collisions at s = 1.96 TeV Abazov, V. M.; Abbott, B.; Acharya, B. S. Physical Review D, Vol. 84, Issue 1 https://doi.org/10.1103/PhysRevD.84.012008	journal	July 2011
Top-pair forward-backward asymmetry beyond next-to-leading order Ahrens, Valentin; Ferroglia, Andrea; Neubert, Matthias Physical Review D, Vol. 84, Issue 7 https://doi.org/10.1103/PhysRevD.84.074004	journal	October 2011
Polarized view of the top asymmetry Krohn, David; Liu, Tao; Shelton, Jessie Physical Review D, Vol. 84, Issue 7 https://doi.org/10.1103/PhysRevD.84.074034	journal	October 2011
Electroweak contribution to the top quark forward-backward asymmetry at the Tevatron Hollik, Wolfgang; Pagani, Davide Physical Review D, Vol. 84, Issue 9 https://doi.org/10.1103/PhysRevD.84.093003	journal	November 2011
Measurement of the Forward-Backward Charge Asymmetry in Top-Quark Pair Production Abazov, V. M.; Abbott, B.; Abolins, M. Physical Review Letters, Vol. 100, Issue 14 https://doi.org/10.1103/PhysRevLett.100.142002	journal	April 2008
Measurement of the Inclusive Jet Cross Section in p p ¯ Collisions at s = 1.96 TeV Abazov, V. M.; Abbott, B.; Abolins, M. Physical Review Letters, Vol. 101, Issue 6 https://doi.org/10.1103/PhysRevLett.101.062001	journal	August 2008
Forward-Backward Asymmetry in Top-Quark Production in p p ¯ Collisions at s = 1.96 TeV Aaltonen, T.; Adelman, J.; Akimoto, T. Physical Review Letters, Vol. 101, Issue 20 https://doi.org/10.1103/PhysRevLett.101.202001	journal	November 2008
Top Quark Forward-Backward Asymmetry and Same-Sign Top Quark Pairs Berger, Edmond L.; Cao, Qing-Hong; Chen, Chuan-Ren Physical Review Letters, Vol. 106, Issue 20 https://doi.org/10.1103/PhysRevLett.106.201801	journal	May 2011
Observation of Top Quark Production in p ¯ p Collisions with the Collider Detector at Fermilab Abe, F.; Akimoto, H.; Akopian, A. Physical Review Letters, Vol. 74, Issue 14 https://doi.org/10.1103/PhysRevLett.74.2626	journal	April 1995
Observation of the Top Quark Abachi, S.; Abbott, B.; Abolins, M. Physical Review Letters, Vol. 74, Issue 14 https://doi.org/10.1103/PhysRevLett.74.2632	journal	April 1995
Charge Asymmetry in Hadroproduction of Heavy Quarks Kühn, J. H.; Rodrigo, G. Physical Review Letters, Vol. 81, Issue 1 https://doi.org/10.1103/PhysRevLett.81.49	journal	July 1998
Next-to-Leading-Order QCD Corrections to t t ¯ + jet Production at Hadron Colliders Dittmaier, S.; Uwer, P.; Weinzierl, S. Physical Review Letters, Vol. 98, Issue 26 https://doi.org/10.1103/PhysRevLett.98.262002	journal	June 2007
Properties of the top quark Wicke, Daniel The European Physical Journal C, Vol. 71, Issue 5 https://doi.org/10.1140/epjc/s10052-011-1627-0	journal	May 2011

Cited By (38)

NLO QCD predictions for off-shell t t ¯ $$ t\overline{t} $$ and t t ¯ H $$ t\overline{t}H $$ production and decay at a linear collider Nejad, Bijan Chokoufé; Kilian, Wolfgang; Lindert, Jonas M. Journal of High Energy Physics, Vol. 2016, Issue 12 https://doi.org/10.1007/jhep12(2016)075	journal	December 2016
Top-quark processes at NLO in production and decay Campbell, John M.; Ellis, R. Keith Journal of Physics G: Nuclear and Particle Physics, Vol. 42, Issue 1 https://doi.org/10.1088/0954-3899/42/1/015005	journal	December 2014
Top forward-backward asymmetry and the CDF W j j excess in leptophobic U ( 1 ) ′ flavor models Ko, P.; Omura, Yuji; Yu, Chaehyun Physical Review D, Vol. 85, Issue 11 https://doi.org/10.1103/physrevd.85.115010	journal	June 2012
Top quark and leptonic charge asymmetries for the Tevatron and LHC Bernreuther, Werner; Si, Zong-Guo Physical Review D, Vol. 86, Issue 3 https://doi.org/10.1103/physrevd.86.034026	journal	August 2012
Setting the renormalization scale in QCD: The principle of maximum conformality Brodsky, Stanley J.; Di Giustino, Leonardo Physical Review D, Vol. 86, Issue 8 https://doi.org/10.1103/physrevd.86.085026	journal	October 2012
Top-quark charge asymmetry with a jet handle Berge, Stefan; Westhoff, Susanne Physical Review D, Vol. 86, Issue 9 https://doi.org/10.1103/physrevd.86.094036	journal	November 2012
Measurement of the top quark forward-backward production asymmetry and its dependence on event kinematic properties Aaltonen, T.; Amerio, S.; Amidei, D. Physical Review D, Vol. 87, Issue 9 https://doi.org/10.1103/physrevd.87.092002	journal	May 2013
Top quark pair production at small transverse momentum in hadronic collisions Li, Hai Tao; Li, Chong Sheng; Shao, Ding Yu Physical Review D, Vol. 88, Issue 7 https://doi.org/10.1103/physrevd.88.074004	journal	October 2013
Study of top quark production and decays involving a tau lepton at CDF and limits on a charged Higgs boson contribution Aaltonen, T.; Amerio, S.; Amidei, D. Physical Review D, Vol. 89, Issue 9 https://doi.org/10.1103/physrevd.89.091101	journal	May 2014
Measurement of the forward-backward asymmetry in the distribution of leptons in t t ¯ events in the lepton + jets channel Abazov, V. M.; Abbott, B.; Acharya, B. S. Physical Review D, Vol. 90, Issue 7 https://doi.org/10.1103/physrevd.90.072001	journal	October 2014
Measurement of the forward-backward asymmetry in top quark-antiquark production in p p ¯ collisions using the lepton + jets channel Abazov, V. M.; Abbott, B.; Acharya, B. S. Physical Review D, Vol. 90, Issue 7 https://doi.org/10.1103/physrevd.90.072011	journal	October 2014
Measurement of differential t t ¯ production cross sections in p p ¯ collisions Abazov, V. M.; Abbott, B.; Acharya, B. S. Physical Review D, Vol. 90, Issue 9 https://doi.org/10.1103/physrevd.90.092006	journal	November 2014
Top quark forward-backward asymmetry at approximate N LO 3 Kidonakis, Nikolaos Physical Review D, Vol. 91, Issue 7 https://doi.org/10.1103/physrevd.91.071502	journal	April 2015
Measurement of the charge asymmetry in top quark pair production in p p collisions at s = 8 TeV using a template method Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A. Physical Review D, Vol. 93, Issue 3 https://doi.org/10.1103/physrevd.93.034014	journal	February 2016
Measurement of the forward–backward asymmetry of top-quark and antiquark pairs using the full CDF Run II data set Aaltonen, T.; Amerio, S.; Amidei, D. Physical Review D, Vol. 93, Issue 11 https://doi.org/10.1103/physrevd.93.112005	journal	June 2016
Anticipating nonresonant new physics in dilepton angular spectra at the LHC Raj, Nirmal Physical Review D, Vol. 95, Issue 1 https://doi.org/10.1103/physrevd.95.015011	journal	January 2017
Eliminating the Renormalization Scale Ambiguity for Top-Pair Production Using the Principle of Maximum Conformality Brodsky, Stanley J.; Wu, Xing-Gang Physical Review Letters, Vol. 109, Issue 4 https://doi.org/10.1103/physrevlett.109.042002	journal	July 2012
Transverse-Momentum Resummation for Top-Quark Pairs at Hadron Colliders Zhu, Hua Xing; Li, Chong Sheng; Li, Hai Tao Physical Review Letters, Vol. 110, Issue 8 https://doi.org/10.1103/physrevlett.110.082001	journal	February 2013
Resolving the Tevatron Top Quark Forward-Backward Asymmetry Puzzle: Fully Differential Next-to-Next-to-Leading-Order Calculation Czakon, Michal; Fiedler, Paul; Mitov, Alexander Physical Review Letters, Vol. 115, Issue 5 https://doi.org/10.1103/physrevlett.115.052001	journal	July 2015
Combined Forward-Backward Asymmetry Measurements in Top-Antitop Quark Production at the Tevatron Aaltonen, T.; Abazov, V. M.; Abbott, B. Physical Review Letters, Vol. 120, Issue 4 https://doi.org/10.1103/physrevlett.120.042001	journal	January 2018
Top quark physics at the Tevatron using t t ¯ events Déliot, Frédéric; Glenzinski, Douglas A. Reviews of Modern Physics, Vol. 84, Issue 1 https://doi.org/10.1103/revmodphys.84.211	journal	March 2012
Asymmetries in top quark pair production at hadron colliders Aguilar-Saavedra, J. A.; Amidei, D.; Juste, A. Reviews of Modern Physics, Vol. 87, Issue 2 https://doi.org/10.1103/revmodphys.87.421	journal	May 2015
Constraints on four-fermion interactions from the $$t\bar{t}$$ t t ¯ charge asymmetry at hadron colliders Roselló, M. Perelló; Vos, M. The European Physical Journal C, Vol. 76, Issue 4 https://doi.org/10.1140/epjc/s10052-016-4040-x	journal	April 2016
Review of recent measurements in the top quark sector at the Tevatron Jung, Andreas W. Modern Physics Letters A, Vol. 29, Issue 18 https://doi.org/10.1142/s0217732314300146	journal	June 2014
Top Quark Physics at the lhc: a Review of the First two Years Schilling, Frank-Peter International Journal of Modern Physics A, Vol. 27, Issue 17 https://doi.org/10.1142/s0217751x12300165	journal	June 2012
Review of Tevatron results: Top quark physics Gerber, Cecilia E.; Vellidis, Costas International Journal of Modern Physics A, Vol. 30, Issue 06 https://doi.org/10.1142/s0217751x15410055	journal	February 2015
Combined Forward-Backward Asymmetry Measurements in Top-Antitop Quark Production at the Tevatron Aaltonen, Timo Antero; Abazov, Victor Mukhamedovich; Abbott, Braden Keim Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2017-13959	text	January 2018
Combined Forward-Backward Asymmetry Measurements in Top-Antitop Quark Production at the Tevatron Collaboration, Cdf; Collaboration, D0; Aaltonen, T. ETH Zurich https://doi.org/10.3929/ethz-b-000239183	text	January 2018
Setting the Renormalization Scale in QCD: The Principle of Maximum Conformality Brodsky, Stanley J.; Di Giustino, Leonardo arXiv https://doi.org/10.48550/arxiv.1107.0338	text	January 2011
Eliminating the Renormalization Scale Ambiguity for Top-Pair Production Using the Principle of Maximum Conformality Brodsky, Stanley J.; Wu, Xing-Gang arXiv https://doi.org/10.48550/arxiv.1203.5312	text	January 2012
Top quark and leptonic charge asymmetries for the Tevatron and LHC Bernreuther, Werner; Si, Zong-Guo arXiv https://doi.org/10.48550/arxiv.1205.6580	text	January 2012
Top Quark Physics at the LHC: A Review of the First Two Years Schilling, Frank-Peter arXiv https://doi.org/10.48550/arxiv.1206.4484	text	January 2012
Transverse-momentum resummation for top-quark pairs at hadron colliders Zhu, Hua Xing; Li, Chong Sheng; Li, Hai Tao arXiv https://doi.org/10.48550/arxiv.1208.5774	text	January 2012
Measurement of the top quark forward-backward production asymmetry and its dependence on event kinematic properties Collaboration, Cdf; Aaltonen, T.; Amerio, S. arXiv https://doi.org/10.48550/arxiv.1211.1003	text	January 2012
Review of recent measurements in the top quark sector at the Tevatron Jung, Andreas Werner arXiv https://doi.org/10.48550/arxiv.1404.1842	text	January 2014
Anticipating Non-Resonant New Physics in Dilepton Angular Spectra at the LHC Raj, Nirmal arXiv https://doi.org/10.48550/arxiv.1610.03795	text	January 2016
Measurement of the forward–backward asymmetry of top-quark and antiquark pairs using the full CDF Run II data set Collaboration, Cdf; Al, Et; Canelli, F. American Physical Society https://doi.org/10.5167/uzh-129916	text	January 2016
Measurement of the top quark forward-backward production asymmetry and its dependence on event kinematic properties Collaboration, Cdf; Al, Et; Canelli, F. American Physical Society https://doi.org/10.5167/uzh-92111	text	January 2013

Similar Records

Forward-backward asymmetry in top quark-antiquark production

Journal Article · Mon Dec 12 04:00:00 UTC 2011 · Physical Review. D, Particles, Fields, Gravitation and Cosmology · OSTI ID:1038107

Abazov, V M; Abbott, B; Acharya, B S; +276 more

Measurement of the Forward-Backward Asymmetry in Top-Antitop Quark Events in the Lepton+Jets Channel at D0

Thesis/Dissertation · Sun Jan 01 04:00:00 UTC 2012 · OSTI ID:1247706

Orbaker, Douglas Andrew

Measurement of the forward-backward asymmetry of top-quark and antiquark pairs using the full CDF Run II data set

Journal Article · Fri Jun 03 00:00:00 UTC 2016 · Physical Review D · OSTI ID:1253585

Aaltonen, Timo Antero

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
DECAY
Experiment-HEP
FERMILAB TEVATRON
GLUONS
LEPTONS
LUMINOSITY
PRODUCTION
QUANTUM CHROMODYNAMICS
RADIATIONS
RESOLUTION
SENSITIVITY
SIMULATION
T QUARKS

Title: Forward-backward asymmetry in top quark-antiquark production

Citation Formats

References (34)

Cited By (38)

Similar Records

Related Subjects