Cross-section-constrained top-quark mass measurement from dilepton events at the tevatron

Authors

T. Aaltonen, Helsingin Yliopisto
J. Adelman, The Enrico Fermi Institute
T. Akimoto, University of Tsukuba
M. G. Albrow, Fermi National Accelerator Laboratory
B. Álvarez González, Universidad de Cantabria
S. Amerio, Università degli Studi di Padova
D. Amidei, University of Michigan, Ann Arbor
A. Anastassov, Rutgers University–New Brunswick
A. Annovi, INFN, Laboratori Nazionali Di Frascati
J. Antos, Univerzita Komenského v Bratislave
M. Aoki, University of Illinois Urbana-Champaign
G. Apollinari, Fermi National Accelerator Laboratory
A. Apresyan, Purdue University
T. Arisawa, Waseda University
A. Artikov, Joint Institute for Nuclear Research, Dubna
W. Ashmanskas, Fermi National Accelerator Laboratory
A. Attal, Universitat Autònoma de Barcelona
A. Aurisano, Texas A&M University
F. Azfar, University of Oxford
P. Azzi-Bacchetta, Università degli Studi di Padova
P. Azzurri, Scuola Normale Superiore di Pisa
N. Bacchetta, Università degli Studi di Padova
W. Badgett, Fermi National Accelerator Laboratory
A. Barbaro-Galtieri, Lawrence Berkeley National Laboratory
V. E. Barnes, Purdue University
B. A. Barnett, Johns Hopkins University
S. Baroiant, University of California, Davis
V. Bartsch, University College London

Document Type

Article

Publication Date

2-15-2008

Abstract

We report the first top-quark mass measurement that uses a cross-section constraint to improve the mass determination. This measurement is made with a dilepton tt̄ event candidate sample collected with the Collider Detector II at Fermilab. From a data sample corresponding to an integrated luminosity of 1.2fb-1, we measure a top-quark mass of 170.7-3.9+4.2(stat)±2.6(syst) ±2.4(theory)GeV/c2. The measurement without the cross-section constraint is 169.7-4.9+5.2(stat)±3.1(syst)GeV/c2. © 2008 The American Physical Society.

Publication Source (Journal or Book title)

Physical Review Letters

Recommended Citation

Aaltonen, T., Adelman, J., Akimoto, T., Albrow, M., Álvarez González, B., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., Antos, J., Aoki, M., Apollinari, G., Apresyan, A., Arisawa, T., Artikov, A., Ashmanskas, W., Attal, A., Aurisano, A., Azfar, F., Azzi-Bacchetta, P., Azzurri, P., Bacchetta, N., Badgett, W., Barbaro-Galtieri, A., Barnes, V., Barnett, B., Baroiant, S., & Bartsch, V. (2008). Cross-section-constrained top-quark mass measurement from dilepton events at the tevatron. Physical Review Letters, 100 (6) https://doi.org/10.1103/PhysRevLett.100.062005