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Title: Top quark mass measurement from dilepton events at CDF II with the matrix-element method

Abstract

We describe a measurement of the top quark mass using events with two charged leptons collected by the CDF II detector from p{bar p} collisions with {radical}s = 1.96 TeV at the Fermilab Tevatron. The likelihood in top mass is calculated for each event by convoluting the leading order matrix element describing q{bar q} {yields} t{bar t} {yields} b{ell}{nu}{sub {ell}}{bar b}{ell}{prime} {nu}{sub {ell}}, with detector resolution functions. The presence of background events in the data sample is modeled using similar calculations involving the matrix elements for major background processes. In a data sample with integrated luminosity of 340 pb{sup -1}, we observe 33 candidate events and measure M{sub top} = 165.2 {+-} 6.1(stat.) {+-} 3.4(syst.) GeV/c{sup 2}. This measurement represents the first application of this method to events with two charged leptons and is the most precise single measurement of the top quark mass in this channel.

Authors:
; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
897902
Report Number(s):
FERMILAB-PUB-06-174-E
arXiv eprint number hep-ex/0605118; TRN: US0701548
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Journal Article
Resource Relation:
Journal Name: Phys.Rev.D74:032009,2006
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; FERMILAB COLLIDER DETECTOR; FERMILAB TEVATRON; LEPTONS; LUMINOSITY; MATRIX ELEMENTS; RESOLUTION; T QUARKS; Experiment-HEP

Citation Formats

Abulencia, A., Acosta, D., Adelman, Jahred A., Affolder, T., Akimoto, T., Albrow, M.G., Ambrose, D., Amerio, S., Amidei, D., Anastassov, A., Anikeev, K., and /Taiwan, Inst. Phys. /Argonne /Barcelona, IFAE /Baylor U. /INFN, Bologna /Bologna U. /Brandeis U. /UC, Davis /UCLA /UC, San Diego /UC, Santa Barbara. Top quark mass measurement from dilepton events at CDF II with the matrix-element method. United States: N. p., 2006. Web. doi:10.1103/PhysRevD.74.032009.
Abulencia, A., Acosta, D., Adelman, Jahred A., Affolder, T., Akimoto, T., Albrow, M.G., Ambrose, D., Amerio, S., Amidei, D., Anastassov, A., Anikeev, K., & /Taiwan, Inst. Phys. /Argonne /Barcelona, IFAE /Baylor U. /INFN, Bologna /Bologna U. /Brandeis U. /UC, Davis /UCLA /UC, San Diego /UC, Santa Barbara. Top quark mass measurement from dilepton events at CDF II with the matrix-element method. United States. doi:10.1103/PhysRevD.74.032009.
Abulencia, A., Acosta, D., Adelman, Jahred A., Affolder, T., Akimoto, T., Albrow, M.G., Ambrose, D., Amerio, S., Amidei, D., Anastassov, A., Anikeev, K., and /Taiwan, Inst. Phys. /Argonne /Barcelona, IFAE /Baylor U. /INFN, Bologna /Bologna U. /Brandeis U. /UC, Davis /UCLA /UC, San Diego /UC, Santa Barbara. Mon . "Top quark mass measurement from dilepton events at CDF II with the matrix-element method". United States. doi:10.1103/PhysRevD.74.032009. https://www.osti.gov/servlets/purl/897902.
@article{osti_897902,
title = {Top quark mass measurement from dilepton events at CDF II with the matrix-element method},
author = {Abulencia, A. and Acosta, D. and Adelman, Jahred A. and Affolder, T. and Akimoto, T. and Albrow, M.G. and Ambrose, D. and Amerio, S. and Amidei, D. and Anastassov, A. and Anikeev, K. and /Taiwan, Inst. Phys. /Argonne /Barcelona, IFAE /Baylor U. /INFN, Bologna /Bologna U. /Brandeis U. /UC, Davis /UCLA /UC, San Diego /UC, Santa Barbara},
abstractNote = {We describe a measurement of the top quark mass using events with two charged leptons collected by the CDF II detector from p{bar p} collisions with {radical}s = 1.96 TeV at the Fermilab Tevatron. The likelihood in top mass is calculated for each event by convoluting the leading order matrix element describing q{bar q} {yields} t{bar t} {yields} b{ell}{nu}{sub {ell}}{bar b}{ell}{prime} {nu}{sub {ell}}, with detector resolution functions. The presence of background events in the data sample is modeled using similar calculations involving the matrix elements for major background processes. In a data sample with integrated luminosity of 340 pb{sup -1}, we observe 33 candidate events and measure M{sub top} = 165.2 {+-} 6.1(stat.) {+-} 3.4(syst.) GeV/c{sup 2}. This measurement represents the first application of this method to events with two charged leptons and is the most precise single measurement of the top quark mass in this channel.},
doi = {10.1103/PhysRevD.74.032009},
journal = {Phys.Rev.D74:032009,2006},
number = ,
volume = ,
place = {United States},
year = {Mon May 01 00:00:00 EDT 2006},
month = {Mon May 01 00:00:00 EDT 2006}
}