Direct Measurement of the Mass Difference between Top and Antitop Quarks
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Issue Date
2009-09-21Article Version
Scholarly/refereed, publisher version
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We present a measurement of the mass difference between t and t-bar quarks in lepton+jets final states of tt-bar events in 1 fb(−1) of data collected with the D0 detector from Fermilab Tevatron Collider pp-bar collisions at s√=1.96 TeV. The measured mass difference of 3.8±3.7 GeV is consistent with the equality of t and t-bar masses. This is the first direct measurement of a mass difference between a quark and its antiquark partner.
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This is the publisher's version, also available electronically from http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.103.132001.
ISSN
0031-9007Collections
Citation
V. M. Abazov et al. (D0 Collaboration). (2009). "Direct Measurement of the Mass Difference between Top and Antitop Quarks." Physical Review Letters, 103(13):132001. http://dx.doi.org/10.1103/PhysRevLett.103.132001
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