Number of the records: 1

Measurement of the top quark mass in final states with two leptons

SYSNO ASEP	0339472
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Ostatní články
Title	Measurement of the top quark mass in final states with two leptons
Author(s)	Abazov, V. M. (RU) Abbott, B. (US) Abolins, M. (US) Kupčo, Alexander (FZU-D)_{RID, ORCID} Lokajíček, Miloš (FZU-D)_{RID, ORCID}
Source Title	Physical Review D: Particles, Fields, Gravitation and Cosmology. - : American Physical Society - ISSN 1550-7998 Roč. 80, č. 9 (2009), 092006/1-092006/21
Number of pages	21 s.
Language	eng - English
Country	US - United States
Keywords	D0 ; top quark ; lepton
Subject RIV	BF - Elementary Particles and High Energy Physics
R&D Projects	LC527 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	LA08047 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z10100502 - FZU-D (2005-2011)
DOI	10.1103/PhysRevD.80.092006
Annotation	We present measurements of the top quark mass in ttbar candidate events with two final state leptons using 1 inverse fb of data collected by the D0 experiment. Our data sample is selected by requiring two fully identified leptons or by relaxing one lepton requirement to an isolated track if at least one jet is tagged as a b jet. The top quark mass is extracted after reconstructing the event kinematics under the ttbar hypothesis using two methods. In the first method, we integrate over expected neutrino rapidity distributions, and in the second we calculate a weight for the possible top quark masses based on the observed particle momenta and the known parton distribution functions.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2010

Number of the records: 1