Search for {lambda}{sub c}{sup +} {yields} pK{sup +}{pi}{sup -} and D{sub s}{sup +} {yields} K{sup +}K{sup +}{pi}{sup -} Using Genetic Programming Event Selection

We apply a genetic programming technique to search for the doubly Cabibbo suppressed decays {lambda}{sub c}{sup +} {yields} pK{sup +}{pi}{sup -} and D{sub s}{sup +} {yields} K{sup +}K{sup +}{pi}{sup -}. We normalize these decays to their Cabibbo favored partners and find BR({lambda}{sub c}{sup +} {y...

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Bibliographic Details
Published in:AIP conference proceedings 2006-07, Vol.842 (1)
Main Author: Vaandering, Eric W.
Format: Article
Language:English
Subjects:
D MESONS
D S MESONS
DATA ANALYSIS
HADRONIC PARTICLE DECAY
KAONS MINUS
KAONS PLUS
LAMBDA C PLUS BARYONS
PARTICLE PRODUCTION
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
PIONS MINUS
PIONS PLUS
PROTONS
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Summary:We apply a genetic programming technique to search for the doubly Cabibbo suppressed decays {lambda}{sub c}{sup +} {yields} pK{sup +}{pi}{sup -} and D{sub s}{sup +} {yields} K{sup +}K{sup +}{pi}{sup -}. We normalize these decays to their Cabibbo favored partners and find BR({lambda}{sub c}{sup +} {yields} pK{sup +}{pi}{sup -})/BR({lambda}{sub c}{sup +} {yields} pK{sup -}{pi}{sup +}) < 0.46% and BR(D{sub s}{sup +} {yields} K{sup +}K{sup +}{pi}{sup -})/BR(D{sub s}{sup +} {yields} K{sup -}K{sup +}{pi}{sup +}) < 0.78% at the 90% confidence level (CL). This is the first successful use of genetic programming in a high energy physics data analysis.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.2220333