Measurements of the top-quark mass using charged particle tracking

• Main Authors: Bauer, Gerry P. (Contributor), Choudalakis, Georgios (Contributor), Gomez-Ceballos, Guillelmo (Contributor), Goncharov, M. (Contributor), Hahn, Kristian Allan (Contributor), Henderson, C. (Contributor), Knuteson, Bruce O. (Contributor), Makhoul, K. (Contributor), Paus, Christoph M. E. (Contributor), Xie, Si (Contributor)
• Other Authors: Massachusetts Institute of Technology. Department of Physics (Contributor), Massachusetts Institute of Technology. Laboratory for Nuclear Science (Contributor)
• Format: Article
• Language: English
• Published: American Physical Society, 2010-07-12T16:59:26Z.
• Subjects: Article
• Online Access: Get fulltext

We present three measurements of the top-quark mass in the lepton plus jets channel with approximately 1.9  fb[superscript -1] of integrated luminosity collected with the CDF II detector using quantities with minimal dependence on the jet energy scale. One measurement exploits the transverse decay length of b-tagged jets to determine a top-quark mass of 166.9[subscript -8.5][superscript +9.5](stat)±2.9(syst)  GeV/c[superscript 2], and another the transverse momentum of electrons and muons from W-boson decays to determine a top-quark mass of 173.5[subscript --8.9][superscript +8.8](stat)±3.8(syst)  GeV/c[superscript 2]. These quantities are combined in a third, simultaneous mass measurement to determine a top-quark mass of 170.7±6.3(stat)±2.6(syst) GeV/c[superscript 2].
United States. Dept. of Energy
National Science Foundation
Istituto Nazionale di Fisica Nucleare of Italy
Ministry of Education, Culture, Sports, Science and Technology of Japan
Natural Sciences and Engineering Research Council of Canada
National Science Council of the Republic of China
Swiss National Science Foundation
Alfred P. Sloan Foundation
Bundesministerium für Bildung und Forschung, Germany
Korean Science and Engineering Foundation
Korean Research Foundation
Science and Technology Facilities Council, United Kingdom
Royal Society, United Kingdom
Institut National de Physique Nucleaire et Physique des Particules/CNRS
Russian Foundation for Basic Research
MEC (Spain)
Slovak R&D Agency
Academy of Finland