Combination and interpretations of t anti-t cross section measurements with the D0 detector

Journal Article · Sun Mar 01 04:00:00 EST 2009 · Submitted to Phys.Rev.D

OSTI ID:957084

Abazov, V M; Abbott, B; Abolins, M; Acharya, Bannanje Sripath; Adams, M; Adams, T; Aguilo, E; Ahsan, M; Alexeev, G D; Alkhazov, Georgiy D; Alton, Andrew K

We combine measurements of the top quark pair production cross section in p{bar p} collisions in the {ell}+jets, {ell}{ell} and {tau}{ell} final states (where {ell} is an electron or muon) at a center of mass energy of {radical}s = 1.96 TeV in 1 fb{sup -1} of data collected with the D0 detector. For a top quark mass of 170 GeV/c{sup 2}, we obtain {sigma}{sub t{bar t}} = 8.18{sub -0.87}{sup +0.98} pb in agreement with the theoretical prediction. Based on predictions from higher order quantum chromodynamics, we extract a mass for the top quark from the combined t{bar t} cross section, consistent with the world average of the top quark mass. In addition, the ratios of t{bar t} cross sections in different final states are used to set upper limits on the branching fractions B(t {yields} H{sup +}b {yields} {tau}{sup +}{nu}b) and B(t {yields} H{sup +}b {yields} c{bar s}b) as a function of charged Higgs boson mass.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 957084
• Report Number(s): FERMILAB-PUB-09-092-E; arXiv eprint number arXiv:0903.5525
• Journal Information: Submitted to Phys.Rev.D, Journal Name: Submitted to Phys.Rev.D
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
A CENTERS
CROSS SECTIONS
ELECTRONS
Experiment-HEP
FORECASTING
HIGGS BOSONS
PAIR PRODUCTION
QUANTUM CHROMODYNAMICS
T QUARKS