Measurement of the <script type="math/tex">p\overline{p}\rightarrow t\overline{t}</script> production cross section and the top quark mass at <script type="math/tex">\sqrt{s}</script>=1.96 TeV in the all-hadronic decay mode

Aaltonen, T.; Van Remortel, N.; et al.

doi:10.1103/PHYSREVD.76.072009

Title

Measurement of the $p\overline{p}\rightarrow t\overline{t}$ production cross section and the top quark mass at $\sqrt{s}$ =1.96 TeV in the all-hadronic decay mode

Author

Aaltonen, T.

Van Remortel, N.

et al.

Institution/Organisation

CDF Collaboration

Abstract

We report the measurements of the tt̅ production cross section and of the top quark mass using 1.02 fb-1 of pp̅ data collected with the CDF II detector at the Fermilab Tevatron. We select events with six or more jets on which a number of kinematical requirements are imposed by means of a neural network algorithm. At least one of these jets must be identified as initiated by a b-quark candidate by the reconstruction of a secondary vertex. The cross section is measured to be σtt̅ =8.3±1.0(stat)-1.5+2.0(syst)±0.5(lumi) pb, which is consistent with the standard model prediction. The top quark mass of 174.0±2.2(stat)±4.8(syst) GeV/c2 is derived from a likelihood fit incorporating reconstructed mass distributions representative of signal and background.

Language

English

Source (journal)

Physical review : D : particles, fields, gravitation, and cosmology / American Physical Society. - Ridge, N.Y., 2004 - 2015

Physical review : D : particles and fields. - Lancaster, Pa, 1970 - 2003

Publication

Ridge, N.Y. : American Physical Society , 2007

ISSN

1550-7998 [print]

1550-2368 [online]

DOI

10.1103/PHYSREVD.76.072009