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Evidence for s-channel single top quark production in pp¯ collisions at s=1.96 TeV

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Evidence for s-channel single top quark production in pp¯ collisions at s=1.96 TeV. / D0 Collaboration.

In: Physics Letters B, Vol. 726, No. 4-5, 04.11.2013, p. 656-664.

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D0 Collaboration. / Evidence for s-channel single top quark production in pp¯ collisions at s=1.96 TeV. In: Physics Letters B. 2013 ; Vol. 726, No. 4-5. pp. 656-664.

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@article{3189105fee2046bdb08669fd0f65a13b,
title = "Evidence for s-channel single top quark production in pp¯ collisions at s=1.96 TeV",
abstract = "We present measurements of the cross sections for the two main production modes of single top quarksin pp¯ collisions at √s = 1.96 TeV in the Run II data collected with the D0 detector at the FermilabTevatron Collider, corresponding to an integrated luminosity of 9.7 fb−1. The s-channel cross section ismeasured to be σ(pp¯ →tb+ X)=1.10+0.33−0.31 pb with no assumptions on the value of the t-channel crosssection. Similarly, the t-channel cross section is measured to be σ(pp¯ →tqb + X) = 3.07+0.54−0.49 pb. Wealso measure the s+t combined cross section as σ(pp¯ →tb+X,tqb+X)=4.11+0.60−0.55 pb and set a lowerlimit on the CKM matrix element |Vtb|>0.92 at 95% C.L., assuming mt =172.5 GeV. The probability tomeasure a cross section for the s channel at the observed value or higher in the absence of signal is1.0×10−4, corresponding to a significance of 3.7 standard deviations.",
author = "Iain Bertram and Peter Ratoff and Guennadi Borissov and Harald Fox and {D0 Collaboration}",
year = "2013",
month = nov
day = "4",
doi = "10.1016/j.physletb.2013.09.048",
language = "English",
volume = "726",
pages = "656--664",
journal = "Physics Letters B",
issn = "0370-2693",
publisher = "ELSEVIER SCIENCE BV",
number = "4-5",

}

RIS

TY - JOUR

T1 - Evidence for s-channel single top quark production in pp¯ collisions at s=1.96 TeV

AU - Bertram, Iain

AU - Ratoff, Peter

AU - Borissov, Guennadi

AU - Fox, Harald

AU - D0 Collaboration

PY - 2013/11/4

Y1 - 2013/11/4

N2 - We present measurements of the cross sections for the two main production modes of single top quarksin pp¯ collisions at √s = 1.96 TeV in the Run II data collected with the D0 detector at the FermilabTevatron Collider, corresponding to an integrated luminosity of 9.7 fb−1. The s-channel cross section ismeasured to be σ(pp¯ →tb+ X)=1.10+0.33−0.31 pb with no assumptions on the value of the t-channel crosssection. Similarly, the t-channel cross section is measured to be σ(pp¯ →tqb + X) = 3.07+0.54−0.49 pb. Wealso measure the s+t combined cross section as σ(pp¯ →tb+X,tqb+X)=4.11+0.60−0.55 pb and set a lowerlimit on the CKM matrix element |Vtb|>0.92 at 95% C.L., assuming mt =172.5 GeV. The probability tomeasure a cross section for the s channel at the observed value or higher in the absence of signal is1.0×10−4, corresponding to a significance of 3.7 standard deviations.

AB - We present measurements of the cross sections for the two main production modes of single top quarksin pp¯ collisions at √s = 1.96 TeV in the Run II data collected with the D0 detector at the FermilabTevatron Collider, corresponding to an integrated luminosity of 9.7 fb−1. The s-channel cross section ismeasured to be σ(pp¯ →tb+ X)=1.10+0.33−0.31 pb with no assumptions on the value of the t-channel crosssection. Similarly, the t-channel cross section is measured to be σ(pp¯ →tqb + X) = 3.07+0.54−0.49 pb. Wealso measure the s+t combined cross section as σ(pp¯ →tb+X,tqb+X)=4.11+0.60−0.55 pb and set a lowerlimit on the CKM matrix element |Vtb|>0.92 at 95% C.L., assuming mt =172.5 GeV. The probability tomeasure a cross section for the s channel at the observed value or higher in the absence of signal is1.0×10−4, corresponding to a significance of 3.7 standard deviations.

U2 - 10.1016/j.physletb.2013.09.048

DO - 10.1016/j.physletb.2013.09.048

M3 - Journal article

VL - 726

SP - 656

EP - 664

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

IS - 4-5

ER -