期刊
PHYSICS LETTERS B
卷 476, 期 1-2, 页码 73-78出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0370-2693(00)00120-9
关键词
top quark mass; LHC
Taking advantage of large top production rates at the LHC, the leptonic final states with J/psi are explored for a precise determination of the top quark mass. The top is partially reconstructed by combining the isolated lepton from the W with the J/psi from the decays of the corresponding b-quark. The method relies, to a large extent, on the proper Monte Carlo description of top production and decay. The main emphasis is put on the expected systematics uncertainties. Mass measurement accuracy is dominated by the current understanding of theoretical uncertainties which result in a systematic error of less than or similar to 1 GeV. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
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