Measurement of the top quark mass in the dilepton channel using mT2 at CDF

Visa fullständig post



Permalänk

http://hdl.handle.net/10138/24084

Citation

Aaltonen , T , Mehtälä , P , Orava , R , Saarikko , H , Österberg , K & CDF Collaboration 2010 , ' Measurement of the top quark mass in the dilepton channel using mT2 at CDF ' , Physical Review D : Particles, Fields, Gravitation and Cosmology , vol. 81 , no. 3 , pp. 031102 . https://doi.org/10.1103/PhysRevD.81.031102

Titel: Measurement of the top quark mass in the dilepton channel using mT2 at CDF
Sekundär titel: Top Quark Mass Measurement using mT2 in the Dilepton Channel at CDF
Författare: Aaltonen, Timo; Mehtälä, Petteri; Orava, Risto; Saarikko, Heimo; Österberg, Kenneth; CDF Collaboration
Upphovmannens organisation: Department of Physics
Helsinki Institute of Physics
Datum: 2010
Språk: eng
Sidantal: 9
Tillhör serie: Physical Review D : Particles, Fields, Gravitation and Cosmology
ISSN: 1550-7998
DOI: https://doi.org/10.1103/PhysRevD.81.031102
Permanenta länken (URI): http://hdl.handle.net/10138/24084
Abstrakt: We present measurements of the top quark mass using the \mT2, a variable related to the transverse mass in events with two missing particles. We use the template method applied to t\tbar dilepton events produced in p\pbar collisions at Fermilab's Tevatron and collected by the CDF detector. From a data sample corresponding to an integrated luminosity of 3.4 \invfb, we select 236 t\tbar candidate events. Using the \mT2 distribution, we measure the top quark mass to be M_{Top} = 168.0^{+4.8}_{-4.0} $\pm$ {2.9} GeV/c^{2}. By combining the \mT2 with the reconstructed top mass distributions based on a neutrino weighting method, we measure M_{top}=169.3 $\pm$ 2.7 $\pm$ 3.2 GeV/c^{2}. This is the first application of the \mT2 variable in a mass measurement at a hadron collider.We present measurements of the top quark mass using mT2, a variable related to the transverse mass in events with two missing particles. We use the template method applied to tt̅ dilepton events produced in pp̅ collisions at Fermilab’s Tevatron Collider and collected by the CDF detector. From a data sample corresponding to an integrated luminosity of 3.4  fb-1, we select 236 tt̅ candidate events. Using the mT2 distribution, we measure the top quark mass to be Mtop=168.0-4.0+4.8(stat)±2.9(syst)  GeV/c2. By combining mT2 with the reconstructed top quark mass distributions based on a neutrino weighting method, we measure Mtop=169.3±2.7(stat)±3.2(syst)  GeV/c2. This is the first application of the mT2 variable in a mass measurement at a hadron collider.
Beskrivning: Submitted to Phys. Rev. D
Subject: hep-ex
114 Physical sciences
Referentgranskad: Ja
Användningsbegränsning: restrictedAccess


Filer under denna titel

Totalt antal nerladdningar: Laddar...

Filer Storlek Format Granska
0911.2956v3 327.4Kb PDF Granska/Öppna

Detta dokument registreras i samling:

Visa fullständig post