Precision measurement of the Ξ 0 mass and the branching ratios of the decays Ξ 0 → Λγ and Ξ 0 → Σ 0 γ
نویسندگان
چکیده
A new precision measurement of the Ξ mass has been performed at the NA48 experiment at the CERN SPS. The value obtained is [1314.82±0.06 (stat.) ±0.2 (syst.)]MeV/c. The branching ratios of Ξ radiative decays have been measured as: Br(Ξ → Λγ) = [1.90 ± 0.34(stat.) ± 0.19(syst.)] · 10−3 and Br(Ξ → Σγ) = [3.14 ± 0.76(stat.) ± 0.32(syst.)] · 10−3. 70 The NA48 Collaboration: Precision measurement of the Ξ mass
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Charm decays at B A B AR M . Charles University of Iowa SLAC M / S 35 , 2575 Sand Hill Road , Menlo Park , CA 94025 ( representing the
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