Measurement of the Xi0 -> Lambda gamma Decay Asymmetry and Branching Fraction
| dc.creator | Lai, A. | |
| dc.date | 2004-01-16 | |
| dc.date.accessioned | 2026-07-07T10:28:23Z | |
| dc.date.available | 2026-07-07T10:28:23Z | |
| dc.description | In data taken with the NA48 experiment at the CERN SPS in 1999, 730 candidates of the weak radiative hyperon decay Xi0 -> Lambda gamma have been found with an estimated background of 58+-8 events. From these events the Xi0 -> Lambda gamma decay asymmetry has been determined to alpha(Xi0 -> Lambda gamma) = -0.78 +- 0.18_stat +- 0.06_syst, which is the first evidence of a decay asymmetry in Xi0 -> Lambda gamma. The branching fraction of the decay has been measured to be Br(Xi0 -> Lambda gamma) = (1.16 +- 0.05_stat +- 0.06_syst) x 10^-3. | |
| dc.description | 15 pages, 5 figures. Accepted for publication in Phys. Lett. B | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0401027 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0401027 | |
| dc.identifier | Phys.Lett.B584:251-259,2004 | |
| dc.identifier | doi:10.1016/j.physletb.2004.01.041 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/177428 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Measurement of the Xi0 -> Lambda gamma Decay Asymmetry and Branching Fraction | |
| dc.type | text |