English

Measurement of the $\Lambda_{c}^{+}$ Lifetime

High Energy Physics - Experiment 2010-04-08 v1

Abstract

The Λc+\Lambda_{c}^{+} lifetime is measured using 9.0 fb1^{-1} of e+ee^+e^- annihilation data collected on or just below the Υ(4S)\Upsilon(4S) resonance with the CLEO II.V detector at CESR. Using an unbinned maximum likelihood fit, the Λc+\Lambda_{c}^{+} lifetime is measured to be (179.6±6.9(stat.)±4.4(syst.))(179.6 \pm 6.9(stat.) \pm 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 errors.

Keywords

Cite

@article{arxiv.hep-ex/0011049,
  title  = {Measurement of the $\Lambda_{c}^{+}$ Lifetime},
  author = {A. H. Mahmood and CLEO Collaboration},
  journal= {arXiv preprint arXiv:hep-ex/0011049},
  year   = {2010}
}

Comments

9 pages postscript, also available through http://w4.lns.cornell.edu/public/CLNS

R2 v1 2026-07-22T12:59:03.049Z