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Evidence for spin correlation in ttbar production

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Evidence for spin correlation in ttbar production. / D0 Collaboration, The; Bertram, Iain; Borissov, Guennadi et al.
In: Physical review letters, Vol. 108, No. 3, 032004, 19.01.2012.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

D0 Collaboration, T, Bertram, I, Borissov, G, Fox, H, Ross, A, Williams, M & Ratoff, P 2012, 'Evidence for spin correlation in ttbar production', Physical review letters, vol. 108, no. 3, 032004. https://doi.org/10.1103/PhysRevLett.108.032004

APA

D0 Collaboration, T., Bertram, I., Borissov, G., Fox, H., Ross, A., Williams, M., & Ratoff, P. (2012). Evidence for spin correlation in ttbar production. Physical review letters, 108(3), Article 032004. https://doi.org/10.1103/PhysRevLett.108.032004

Vancouver

D0 Collaboration T, Bertram I, Borissov G, Fox H, Ross A, Williams M et al. Evidence for spin correlation in ttbar production. Physical review letters. 2012 Jan 19;108(3):032004. doi: 10.1103/PhysRevLett.108.032004

Author

D0 Collaboration, The ; Bertram, Iain ; Borissov, Guennadi et al. / Evidence for spin correlation in ttbar production. In: Physical review letters. 2012 ; Vol. 108, No. 3.

Bibtex

@article{522368407a824e8590edc03668009028,
title = "Evidence for spin correlation in ttbar production",
abstract = "We present a measurement of the ratio of events with correlated t and tbar spins to the total number of ttbar events. This ratio f is evaluated using a matrix-element-based approach in events with a single lepton (electron or muon) and at least four jets. We analyze ppbar collisions data corresponding to an integrated luminosity of 5.3 fb^-1 collected with the D0 detector at the Fermilab Tevatron collider operating at a center of mass energy $\sqrt{s}=1.96$ TeV. Combining this result with a recent measurement of f in dilepton final states, we find f in agreement with the standard model. In addition, the combination provides evidence for the presence of spin correlation in ttbar events with a significance of more than three standard deviations.",
author = "{D0 Collaboration}, The and Iain Bertram and Guennadi Borissov and Harald Fox and Anthony Ross and Mark Williams and Peter Ratoff",
note = "{\textcopyright} 2012 American Physical Society 7 pages, 2 figures",
year = "2012",
month = jan,
day = "19",
doi = "10.1103/PhysRevLett.108.032004",
language = "English",
volume = "108",
journal = "Physical review letters",
issn = "1079-7114",
publisher = "American Physical Society",
number = "3",

}

RIS

TY - JOUR

T1 - Evidence for spin correlation in ttbar production

AU - D0 Collaboration, The

AU - Bertram, Iain

AU - Borissov, Guennadi

AU - Fox, Harald

AU - Ross, Anthony

AU - Williams, Mark

AU - Ratoff, Peter

N1 - © 2012 American Physical Society 7 pages, 2 figures

PY - 2012/1/19

Y1 - 2012/1/19

N2 - We present a measurement of the ratio of events with correlated t and tbar spins to the total number of ttbar events. This ratio f is evaluated using a matrix-element-based approach in events with a single lepton (electron or muon) and at least four jets. We analyze ppbar collisions data corresponding to an integrated luminosity of 5.3 fb^-1 collected with the D0 detector at the Fermilab Tevatron collider operating at a center of mass energy $\sqrt{s}=1.96$ TeV. Combining this result with a recent measurement of f in dilepton final states, we find f in agreement with the standard model. In addition, the combination provides evidence for the presence of spin correlation in ttbar events with a significance of more than three standard deviations.

AB - We present a measurement of the ratio of events with correlated t and tbar spins to the total number of ttbar events. This ratio f is evaluated using a matrix-element-based approach in events with a single lepton (electron or muon) and at least four jets. We analyze ppbar collisions data corresponding to an integrated luminosity of 5.3 fb^-1 collected with the D0 detector at the Fermilab Tevatron collider operating at a center of mass energy $\sqrt{s}=1.96$ TeV. Combining this result with a recent measurement of f in dilepton final states, we find f in agreement with the standard model. In addition, the combination provides evidence for the presence of spin correlation in ttbar events with a significance of more than three standard deviations.

U2 - 10.1103/PhysRevLett.108.032004

DO - 10.1103/PhysRevLett.108.032004

M3 - Journal article

VL - 108

JO - Physical review letters

JF - Physical review letters

SN - 1079-7114

IS - 3

M1 - 032004

ER -