Measurement of the tt̄ production cross section and the top quark mass in the dilepton channel in pp collisions at √ s = 7 TeV
Name
Chatrchyan2011_Article_MeasurementOfTheRmTBarRmTProdu.pdf
Description
Published version
Size
734.78 KB
Format
Unknown
Checksum (MD5)
7c4d35048028f3f9f11635fa557225c5
Author(s)
Alver, Burak Han
Bauer, Gerry P
Bendavid, Joshua L.
Busza, Wit
Butz, Erik M.
Cali, I. A.
Chan, M.
Dutta, Valentina
Everaerts, Pieter Bruno Bart
Gomez-Ceballos, Guillelmo
Date Issued
July 2011
Publisher
Springer Nature
Version
Final published version
Abstract
The t (t) over bar production cross section and top quark mass are measured in proton-proton collisions at root s = 7 TeV in a data sample corresponding to an integrated luminosity of 36 pb(-1) collected by the CMS experiment. The measurements are performed in events with two leptons (electrons or muons) in the final state. Results of the cross section measurement in events with and without b-quark identification are obtained and combined. The measured value is sigma(tt) - 168 +/- 18 (stat:) +/- 14 (syst:) +/- 7 (lumi:) pb, consistent with predictions from the standard model. The top quark mass m(top) is reconstructed with two different methods, a full kinematic analysis and a matrix weighting technique. The combination yields a measurement of m(top) = 175.5 +/- 4.6 (stat:) +/- 4: 6 (syst:) GeV/c(2). ; ACHI S, 1995, V74, P2632 ; E F, 1995, V74, P2626
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1007/JHEP07(2011)049
