A preliminary measurement of the. Xi. sup 0 r arrow. Sigma. sup 0. gamma. branching ratio and asymmetry parameter

Conference · Mon May 01 04:00:00 EDT 1989 · AIP Conference Proceedings (American Institute of Physics) Conference Proceedings; (USA)

OSTI ID:5249610

Teige, S; Beretvas, A; Caracappa, A; Devlin, T; Diehl, H T; Krueger, K; Thomson, G B ^[1]; Border, P; Ho, P M; Longo, M J ^[2]; others, and

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1. Department of Physics and Astronomy, Rutgers--The State University of New Jersey, Piscataway, New Jersey 08854 (US)
2. Department of Physics, University of Michigan, Ann Arbor, Michigan 48109

In an experiment performed at Fermilab, we have observed the weak radiative decay {Xi}{sup 0}{r arrow}{Sigma}{sup 0}{gamma}. From a sample of 85{plus minus}10 events we have preliminary measurement of the decay branching ratio {Gamma}({Xi}{sup 0}{r arrow}{Sigma}{sup 0}{gamma})/{Gamma}({Xi}{sup 0}{r arrow} {Lambda}{pi}{sup 0})=(3.56{plus minus}0.42){times}10{sup {minus}3} and the asymmetry parameter {alpha}{sub {Xi}}=0.20{plus minus}0.28.

• OSTI ID: 5249610
• Report Number(s): CONF-880983--
• Conference Information: Journal Name: AIP Conference Proceedings (American Institute of Physics) Conference Proceedings; (USA) Journal Volume: 187:1
• Country of Publication: United States
• Language: English

Related Subjects

645102* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
BARYONS
BRANCHING RATIO
DATA
DECAY
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
FERMIONS
HADRONS
HYPERONS
INFORMATION
MASSLESS PARTICLES
NUMERICAL DATA
PARTICLE DECAY
PHOTONS
RADIATIVE DECAY
SIGMA BARYONS
SIGMA NEUTRAL PARTICLES
SIGMA PARTICLES
STRANGE PARTICLES
WEAK PARTICLE DECAY
XI BARYONS
XI NEUTRAL PARTICLES
XI PARTICLES