Title

Search for Λc+→pK+π− and Ds+→K+K+π− using genetic programming event selection

Document Type

Article

Publication Date

2005

Abstract

We apply a genetic programming technique to search for the doubly Cabibbo suppressed decays Λc+→pK+π− and Ds+→K+K+π−. We normalize these decays to their Cabibbo favored partners and find BR(Λc+→pK+π−)/BR(Λc+→pK−π+)=(0.05±0.26±0.02)% and BR(Ds+→K+K+π−)/BR(Ds+→K−K+π+)=(0.52±0.17±0.11)% where the first errors are statistical and the second are systematic. Expressed as 90% confidence levels (CL), we find <0.46 and <0.78%, respectively. This is the first successful use of genetic programming in a high energy physics data analysis.

Comments

Published as: Link, J. M., Yager, P. M., Anjos, J. C., Bediaga, I., Castromonte, C., Machado, A. A., … Sheaff, M. (2005). Search for Λc+→pK+π− and Ds+→K+K+π− using genetic programming event selection. Physics Letters B, 624(3–4), 166–172. https://doi.org/10.1016/j.physletb.2005.08.032

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