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

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We present measurements of the top quark mass (m(t)) in tt candidate events with two final state leptons using 1 fb(-1) 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 tt 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. We analyze 83 candidate events in the data and obtain m(t)=176.2 +/- 4.8(stat)+/- 2.1(sys) GeV and m(t)=173.2 +/- 4.9(stat)+/- 2.0(sys) GeV for the two methods, respectively. Accounting for correlations between the two methods, we combine the measurements to obtain m(t)=174.7 +/- 4.4(stat)+/- 2.0(sys) GeV. We present measurements of the top quark mass (m(t)) in tt candidate events with two final state leptons using 1 fb(-1) 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 tt 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. We analyze 83 candidate events in the data and obtain m(t)=176.2 +/- 4.8(stat)+/- 2.1(sys) GeV and m(t)=173.2 +/- 4.9(stat)+/- 2.0(sys) GeV for the two methods, respectively. Accounting for correlations between the two methods, we combine the measurements to obtain m(t)=174.7 +/- 4.4(stat)+/- 2.0(sys) GeV. (en)
Title	Measurement of the top quark mass in final states with two leptons Measurement of the top quark mass in final states with two leptons (en)
skos:prefLabel	Measurement of the top quark mass in final states with two leptons Measurement of the top quark mass in final states with two leptons (en)
skos:notation	RIV/68407700:21340/09:00172108!RIV11-MSM-21340___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(LA08047), P(LC527), Z(AV0Z10100502), Z(MSM0021620859), Z(MSM6840770039)
http://linked.open...iv/cisloPeriodika	9
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Hubáček, Zdeněk Šimák, Vladislav Vokáč, Petr Hynek, Vlastislav
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta jaderná a fyzikálně inženýrská
http://linked.open...dnocenehoVysledku	325071
http://linked.open...ai/riv/idVysledku	RIV/68407700:21340/09:00172108
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	top quark; mass; dilepton (en)
http://linked.open.../riv/klicoveSlovo	top quark mass dilepton
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[B74696AF36F8]
http://linked.open...i/riv/nazevZdroje	Physical Review D
http://linked.open...in/vavai/riv/obor	BF
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	501 (xsd:int)
http://linked.open...vavai/riv/projekt	Collaboration on the D0 Experiment at FNAL, U.S.A. Center for Particle Physics
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	80
http://linked.open...iv/tvurceVysledku	Abazov, V. M. Vokáč, Petr Šimák, Vladislav Hubáček, Zdeněk Hynek, Vlastislav
http://linked.open...ain/vavai/riv/wos	000272313100012
http://linked.open...n/vavai/riv/zamer	Jevy fyziky elementárních částic přesahující standardní model Výzkum vlastností jader a subjaderných částic a jejich interakcí Matematické, počítačové a experimentální metody ve fyzice
issn	1550-7998
number of pages	20 (xsd:int)
http://localhost/t...ganizacniJednotka	21340

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