Measurement of the Single-Top-Quark $t$-Channel Cross Section in $pp$ Collisions at $\sqrt{s}=7$ TeV - INSPIRE

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Measurement of the Single-Top-Quark $t$ -Channel Cross Section in $pp$ Collisions at $\sqrt{s}=7$ TeV

CMS

Collaboration

Sep, 2012

41 pages

Published in:

JHEP 12 (2012) 035

e-Print:

1209.4533 [hep-ex]

DOI:

10.1007/JHEP12(2012)035

PDG: t-channel Single

{{\mathit t}}

Production Cross Section in

{{\mathit p}}{{\mathit p}}

\sqrt {s }

Report number:

CMS-TOP-11-021,
CERN-PH-EP-2012-274

Experiments:

CERN-LHC-CMS

View in:

reference search309 citations

Citations per year

Abstract: (arXiv)

A measurement of the single-top-quark t-channel production cross section in pp collisions at sqrt(s) = 7 TeV with the CMS detector at the LHC is presented. Two different and complementary approaches have been followed. The first approach exploits the distributions of the pseudorapidity of the recoil jet and reconstructed top-quark mass using background estimates determined from control samples in data. The second approach is based on multivariate analysis techniques that probe the compatibility of the candidate events with the signal. Data have been collected for the muon and electron final states, corresponding to integrated luminosities of 1.17 and 1.56 inverse femtobarns, respectively. The single-top-quark production cross section in the t-channel is measured to be 67.2 +/- 6.1 pb, in agreement with the approximate next-to-next-to-leading-order standard model prediction. Using the standard model electroweak couplings, the CKM matrix element abs(V[tb]]) is measured to be 1.020 +/- 0.046 (meas.) +/- 0.017 (theor.).

Note:

Replaced with published version. Added journal reference and DOI

lepton: final state
higher-order: 2
top: mass
p p: scattering
CERN LHC Coll
CKM matrix
background
jet: rapidity spectrum
jet: recoil
CMS

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