English

A Precision Measurement of the Lambda_c Baryon Mass

High Energy Physics - Experiment 2010-05-19 v1

Abstract

The Λc+\Lambda_c^+ baryon mass is measured using Λc+ΛKS0K+\Lambda_c^+\to\Lambda K^0_S K^+ and Λc+Σ0KS0K+\Lambda_c^+\to\Sigma^0 K^0_S K^+ decays reconstructed in 232 fb1^{-1} of data collected with the BaBar detector at the PEP-II asymmetric-energy e+ee^+e^- storage ring. The Λc+\Lambda_c^+ mass is measured to be 2286.46±0.14MeV/c22286.46\pm0.14\mathrm{MeV}/c^2. The dominant systematic uncertainties arise from the amount of material in the tracking volume and from the magnetic field strength.

Keywords

Cite

@article{arxiv.hep-ex/0507009,
  title  = {A Precision Measurement of the Lambda_c Baryon Mass},
  author = {B. Aubert and The BABAR Collaboration},
  journal= {arXiv preprint arXiv:hep-ex/0507009},
  year   = {2010}
}

Comments

14 pages, 8 postscript figures, submitted to Phys. Rev. D

R2 v1 2026-07-22T13:05:31.711Z