Precise measurement of the top quark mass in the dilepton channel at D0
Journal Article
·
· Submitted to Phys.Rev.Lett.
We measure the top quark mass (m{sub t}) in p{bar p} collisions at a center of mass energy {radical}s = 1.96 TeV using dilepton t{bar t} {yields} W{sup +}bW{sup -}{bar b} {yields} {ell}{sup +} {nu}{sub {ell}}b{ell}{sup -} {bar {nu}}{sub {ell}}{bar b} events, where {ell} denotes an electron, a muon, or a tau that decays leptonically. The data correspond to an integrated luminosity of 5.4 fb{sup -1} collected with the D0 detector at the Fermilab Tevatron Collider. We obtain m{sub t} = 174.0 {+-} 1.8(stat) {+-} 2.4(syst) GeV, which is in agreement with the current world average m{sub t} = 173.3 {+-} 1.1 GeV. This is currently the most precise measurement of m{sub t} in the dilepton channel.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL
- Sponsoring Organization:
- DOE Office of Science
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1013143
- Report Number(s):
- FERMILAB-PUB-11-203-E; arXiv eprint number arXiv:1105.0320
- Journal Information:
- Submitted to Phys.Rev.Lett., Journal Name: Submitted to Phys.Rev.Lett.
- Country of Publication:
- United States
- Language:
- English
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