Exclusion of an Exotic Top Quark with-4/3 Electric Charge Using Soft Lepton Tagging
Name
APS MIT Open Access Policy Agreement final 12 07 09.pdf
Size
224.45 KB
Format
Adobe PDF
Checksum (MD5)
badb9e5545b14c85bafef7a29d5cb053
Author(s)
Paus, Christoph M. E.
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Bauer, Gerry P
Makhoul, Khaldoun
Date Issued
August 2010
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
CDF Collaboration et al. “Exclusion of an Exotic Top Quark with -4/3 Electric Charge Using Soft Lepton Tagging.” Physical Review Letters 105.10 (2010): 101801. © 2010 The American Physical Society.
Version
Final published version
Abstract
We present a measurement of the electric charge of the top quark using pp[over-bar] collisions corresponding to an integrated luminosity of 2.7 fb[superscript -1] at the CDF II detector. We reconstruct tt[over-bar] events in the lepton+jets final state. We use soft lepton taggers to determine the flavor of the b jets, which we use to reconstruct the top quark’s electric charge and exclude an exotic top quark with -4/3 charge at 95% confidence level. This is the strongest exclusion of the exotic charge scenario and the first to use soft leptons for this purpose.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevLett.105.101801
