A Measurement of the Branching Ratio and Asymmetry of the Decay Cascade^0-->Sigma^0/gamma
| dc.creator | Alavi-Harti, A. | |
| dc.date | 2000-12-11 | |
| dc.date.accessioned | 2026-07-07T10:32:06Z | |
| dc.date.available | 2026-07-07T10:32:06Z | |
| dc.description | We have studied the rare weak radiative hyperon decay Cascade0-->Sigma0/gamma in the KTeV experiment at Fermilab. We have identified 4045 signal events over a background of 804 events. The dominant Cascade0-->Lambda/pi0 decay, which was used for normalization, is the only important background source. An analysis of the acceptance of both modes yields a branching ratio of BR(Cascade0-->Sigma0/gamma)=(3.34 +/- 0.05 +/- 0.09) x 10^(-3). By analyzing the final state decay distributions, we have also determined that the Sigma0 emission asymmetry parameter for this decay is alpha = -0.63 +/- 0.09. | |
| dc.description | submitted to Physical Review Letters | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0012031 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0012031 | |
| dc.identifier | Phys.Rev.Lett.86:3239-3243,2001 | |
| dc.identifier | doi:10.1103/PhysRevLett.86.3239 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/178640 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | A Measurement of the Branching Ratio and Asymmetry of the Decay Cascade^0-->Sigma^0/gamma | |
| dc.type | text |