TY  - JOUR
AU  - CDF Collaboration (Aaltonen, T. et al
AU  - Cabrera, S.
PY  - 2010
DA  - 2010//
TI  - Measurement of the Ratio sigma(t(t)over-bar)/sigma(Z/gamma*-> ll) and Precise Extraction of the t(t)over-bar Cross Section
T2  - Phys. Rev. Lett.
JO  - Physical Review Letters
SP  - 012001
EP  - 7pp
VL  - 105
IS  - 1
PB  - Amer Physical Soc
AB  - We report a measurement of the ratio of the t (t) over bar to Z/gamma* production cross sections in root s = 1.96 TeV p (p) over bar collisions using data corresponding to an integrated luminosity of up to 4.6 fb(-1), collected by the CDF II detector. The t (t) over bar cross section ratio is measured using two complementary methods, a b-jet tagging measurement and a topological approach. By multiplying the ratios by the well-known theoretical Z/gamma* -> ll cross section predicted by the standard model, the extracted t (t) over bar cross sections are effectively insensitive to the uncertainty on luminosity. A best linear unbiased estimate is used to combine both measurements with the result sigma(t (t) over bar) = 7.70 +/- 0.52 pb, for a top-quark mass of 172.5 GeV/c(2).
SN  - 0031-9007
UR  - http://arXiv.org/abs/1004.3224
UR  - https://doi.org/10.1103/PhysRevLett.105.012001
DO  - 10.1103/PhysRevLett.105.012001
LA  - English
N1  - ISI:000279273300001
ID  - CDFCollaborationAaltonen+Cabrera2010
ER  -