期刊
PHYSICAL REVIEW LETTERS
卷 86, 期 23, 页码 5243-5246出版社
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevLett.86.5243
关键词
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We report new precision measurements of the lifetimes of the A(c)(+) and D-0 from SELEX, the charm hadroproduction experiment at Fermilab. Based upon 1630 A(c)(+) and 10210 D-0 decays we observe lifetimes of tau [A(c)(+)] = 198.1 +/- 7.0 +/- 5.6 fs and tau [D-0] = 407.9 +/- 6.0 +/- 4.3 fs.
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