A new measurement of SIGMA$^{+}$ --> p.gamma decay properties

In an experiment performed at the CERN PS using the HYperon BUbble Chamber (HYBUC), the authors have measured the asymmetry parameter alpha /sub gamma / for the decay Sigma /sup +/ to p gamma . The result is alpha /sub gamma /=0.53/sub -0.36//sup +0.38/. For the branching ratio they find Gamma ( Sig...

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Detalles Bibliográficos
Autores principales: Manz, A, Reucroft, S, Settles, Ronald, Wolf, G, Marraffino, J M, Roos, C E, Waters, J, Webster, M
Lenguaje:eng
Publicado: 1980
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(80)90248-8
http://cds.cern.ch/record/134822
Descripción
Sumario:In an experiment performed at the CERN PS using the HYperon BUbble Chamber (HYBUC), the authors have measured the asymmetry parameter alpha /sub gamma / for the decay Sigma /sup +/ to p gamma . The result is alpha /sub gamma /=0.53/sub -0.36//sup +0.38/. For the branching ratio they find Gamma ( Sigma /sup +/ to p gamma )/ Gamma ( Sigma /sup +/ to p pi /sup 0/)=(2.11+or-0.38)*10/sup -3/. (9 refs).

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