Measurements of Relative Branching Ratios of $Λ_{c}^{+}$ Decays into States Containing $Σ$

Details Measurements of Relative Branching Ratios of $Λ_{c}^{+}$ Decays into States Containing $Σ$ Measurements of Relative Branching Ratios of $Λ_{c}^{+}$ Decays into States Containing $Σ$

2002-06-06

arxiv.org/abs/hep-ex/0206013v1

Phys.Lett.B540:25-32,2002

Physics

High Energy Physics

High Energy Physics - Experiment

12 pages

Scientific paper

10.1016/S0370-2693(02)02103-2

We have studied the Cabibbo suppressed decay (\Lambda_{c}^{+}\to \Sigma ^{+}K^{*0}(892)) and the Cabibbo favored decays (\Lambda_{c}^{+}\to \Sigma ^{+}K^{+}K^{-}), (\Lambda_{c}^{+}\to \Sigma ^{+}\phi) and (\Lambda_{c}^{+}\to \Xi ^{*0}(\Sigma^{+}K^{-})K^{+}) and measured their branching ratios relative to (\Lambda_{c}^{+}\to \Sigma ^{+}\pi ^{+}\pi ^{-}) to be ((7.8\pm 1.8\pm 1.3)%), ((7.1\pm 1.1\pm 1.1)%), ((8.7\pm 1.6\pm 0.6)%) and ((2.2\pm 0.6\pm 0.6)%), respectively. The first error is statistical and the second is systematic. We also report two 90% confidence level limits (\Gamma (\Lambda_{c}^{+}\to \Sigma ^{-}K^{+}\pi ^{+})/\Gamma (\Lambda_{c}^{+}\to \Sigma^{+}K^{*0}(892))<35%) and (\Gamma (\Lambda_{c}^{+}\to \Sigma ^{+}K^{+}K^{-})_{NR}/\Gamma(\Lambda_{c}^{+}\to \Sigma ^{+}\pi ^{+}\pi ^{-})<2.8%).

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