Combination and interpretations of t anti-t cross section measurements with the D0 detector
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 Lab. (FNAL), Batavia, IL (United States)
- 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; TRN: US201002%%947
- Journal Information:
- Submitted to Phys.Rev.D, Journal Name: Submitted to Phys.Rev.D
- Country of Publication:
- United States
- Language:
- English
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