ANALYSIS OF NEUTRAL CASCADE EVENTS FROM A HEAVY LIQUID BUBBLE CHAMBER

Technical Report · Tue Oct 01 04:00:00 EDT 1963

OSTI ID:4054067

Wilson, A G

Complete neutral cascade events are observed in heavy liquid bubble chambers. Both photons from the pi /sup 0/ decay are converted to electron pairs. The data for the problem consist of angles and momenta for the two charged prongs of the LAMBDA /sup 0/ decay, angles for the photons calculated from the electron angles, and the coordinates of all the charged vertices. These are supplied by a geometrical reconstruction program. The traditional fit of a bubble chamber event to kinematical constraints is extended to include the geometrical constraint that four of the neutral tracks pass through one point. The coordinates of this point, the XI /sup 0/ decay vertex, and the XI /sup 0/ mass are varied in the fit together with the usual kinematical variables. (auth)

• Research Organization: Gt. Brit. National Inst. for Research in Nuclear Science. Rutherford High Energy Lab., Chilton, Berks, England
• NSA Number: NSA-18-016761
• OSTI ID: 4054067
• Report Number(s): NIRL/R/56
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANGULAR DISTRIBUTION
BUBBLE CHAMBERS
CHARGED PARTICLES
CONFIGURATION
DECAY
ELECTRONS
LAMBDA PARTICLES
LIQUIDS
MASS
MOMENTUM
NUCLEAR CASCADE
NUMERICALS
PAIR PRODUCTION
PHOTONS
PHYSICS
PIONS
POSITRONS
SCATTERING
XI PARTICLES