Measurement of the Lambda(+)(c) lifetime
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Issue Date
2001-03Author
Ammar, Raymond G.
Bean, Alice
Besson, David Zeke
Davis, Robin E. P.
Kwak, Nowhan
Zhao, X.
Publisher
AMERICAN PHYSICAL SOC
Type
Article
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Show full item recordAbstract
The Lambda (+)(c) lifetime is measured using 9.0 fb(-1) of e(+)e(-) annihilation data collected on or just below the Y (4S) resonance with the CLEO ILV detector at CESR. Using an unbinned maximum likelihood fit, the Lambda (+)(c) lifetime is measured to be 179.6 +/- 6.9(stat) +/- 4.4(syst) fs. The precision of this colliding beam measurement is comparable to other measurements, which are based on fixed-target experiments, with different systematic uncertainties.
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Citation
Mahmood, AH; Csorna, SE; et al. Measurement of the Lambda(+)(c) lifetime. PHYSICAL REVIEW LETTERS. March 2001. 86(11) : 2232-2236
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