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Title: Top-quark mass measurement using events with missing transverse energy and jets at CDF

Abstract

We present a measurement of the top-quark mass with tt events using a data sample corresponding to an integrated luminosity of 5.7 fb -1 of pp collisions at the Fermilab Tevatron with √s = 1.96 TeV and collected by the CDF II Detector. We select events having no identified charged leptons, large missing transverse energy, and four, five, or six jets with at least one jet containing a secondary vertex consistent with the decay of a b quark. This analysis considers events from the semileptonic tt decay channel, including events that contain tau leptons, which are usually not included in the top-quark mass measurements. The measurement uses as kinematic variables the invariant mass of two jets consistent with the mass of the W boson, and the invariant masses of two different three-jet combinations. We fit the data to signal templates of varying top-quark masses and background templates, and measure a top-quark mass of M top = 172.3 ± 2.4 (stat) ± 1.0 (syst) GeV/c 2.

Authors:
 [1]
  1. et al.
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
Contributing Org.:
CDF Collaboration
OSTI Identifier:
1027242
Alternate Identifier(s):
OSTI ID: 1098317
Report Number(s):
FERMILAB-PUB-11-422-E-PPD
Journal ID: ISSN 0031-9007; arXiv eprint number arXiv:1109.1490; TRN: US1105198
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 107; Journal Issue: 1; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; B QUARKS; DECAY; FERMILAB COLLIDER DETECTOR; FERMILAB TEVATRON; INTERMEDIATE BOSONS; LEPTONS; LUMINOSITY; TAU PARTICLES; TRANSVERSE ENERGY; Experiment-HEP

Citation Formats

Aaltonen, T. Top-quark mass measurement using events with missing transverse energy and jets at CDF. United States: N. p., 2011. Web. doi:10.1103/PhysRevLett.107.232002.
Aaltonen, T. Top-quark mass measurement using events with missing transverse energy and jets at CDF. United States. doi:10.1103/PhysRevLett.107.232002.
Aaltonen, T. Wed . "Top-quark mass measurement using events with missing transverse energy and jets at CDF". United States. doi:10.1103/PhysRevLett.107.232002. https://www.osti.gov/servlets/purl/1027242.
@article{osti_1027242,
title = {Top-quark mass measurement using events with missing transverse energy and jets at CDF},
author = {Aaltonen, T.},
abstractNote = {We present a measurement of the top-quark mass with tt events using a data sample corresponding to an integrated luminosity of 5.7 fb -1 of pp collisions at the Fermilab Tevatron with √s = 1.96 TeV and collected by the CDF II Detector. We select events having no identified charged leptons, large missing transverse energy, and four, five, or six jets with at least one jet containing a secondary vertex consistent with the decay of a b quark. This analysis considers events from the semileptonic tt decay channel, including events that contain tau leptons, which are usually not included in the top-quark mass measurements. The measurement uses as kinematic variables the invariant mass of two jets consistent with the mass of the W boson, and the invariant masses of two different three-jet combinations. We fit the data to signal templates of varying top-quark masses and background templates, and measure a top-quark mass of Mtop = 172.3 ± 2.4 (stat) ± 1.0 (syst) GeV/c2.},
doi = {10.1103/PhysRevLett.107.232002},
journal = {Physical Review Letters},
number = 1,
volume = 107,
place = {United States},
year = {2011},
month = {11}
}

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