Measurement of the radiative decay width Γ[Λ(1520) --> Λγ] with the SPHINX spectrometer

Details Measurement of the radiative decay width Γ[Λ(1520) --> Λγ] with the SPHINX spectrometer Measurement of the radiative decay width Γ[Λ(1520) --> Λγ] with the SPHINX spectrometer

2004-06-15

arxiv.org/abs/hep-ex/0406039v2

Phys.Lett.B604:22-30,2004

Physics

High Energy Physics

High Energy Physics - Experiment

More detailed treatment of systematical uncertainties, minor clarifications and corrections, significant improvements in Engli

Scientific paper

10.1016/j.physletb.2004.10.050

The radiative decay \Lambda(1520) --> \Lambda \gamma was measured directly in the study of exclusive diffractive-like reaction p + N --> \Lambda(1520) K^+ + N, \Lambda(1520) --> \Lambda \gamma with the SPHINX spectrometer. The values of the branching and partial width of this radiative decay were obtained: BR[\Lambda(1520) --> \Lambda \gamma] = (1.02+/-0.21(stat)+/-0.15(syst))x10^{-2} and \Gamma[\Lambda(1520) --> \Lambda \gamma] = 159+/-33(stat)+/-26(syst) keV.

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