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Measurement of the Lambda(+)(c) lifetime
Ammar, Raymond G. Bean, Alice Besson, David Zeke Davis, Robin E. P. Kwak, Nowhan Zhao, X.
Ammar, Raymond G.
Bean, Alice
Besson, David Zeke
Davis, Robin E. P.
Kwak, Nowhan
Zhao, X.
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Abstract
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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2001-03
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AMERICAN PHYSICAL SOC
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Mahmood, AH; Csorna, SE; et al. Measurement of the Lambda(+)(c) lifetime. PHYSICAL REVIEW LETTERS. March 2001. 86(11) : 2232-2236