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A search for a narrow radial excitation of the [equation] Meson

机译:寻找[等式]介子的窄径向激励

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A sample of 3.73 million hadronic Z decays, recorded with the OPAL detector at LEP in the years 1991–95, has been used to search for a narrow resonance corresponding to the decay of the (mathrm{D}^{*primepm}(2629)) meson into (mathrm{D}^{*pm}mathrm{pi}^{+}mathrm{pi}^{-}). The (mathrm{D}^{*+}) mesons are reconstructed in the decay channel (mathrm{D}^{*+} o mathrm{D}^{0} mathrm{pi}^{+}) with (mathrm{D}^{0} o mathrm{K}^{-}mathrm{pi}^{+}). No evidence for a narrow (mathrm{D}^{*primepm}(2629)) resonance is found. A limit on the production of narrow (mathrm{D}^{*primepm}(2629)) in hadronic Z decays is derived:
机译:1991-95年间,用LEAL的OPAL探测器记录了373万强子Z衰变的样本,用于寻找与(mathrm {D} ^ {* primepm}(2629 ))介入(mathrm {D} ^ {* pm} mathrm {pi} ^ {+} mathrm {pi} ^ {-})。 (mathrm {D} ^ {* +})介子在衰变通道(mathrm {D} ^ {* +}或mathrm {D} ^ {0} mathrm {pi} ^ {+})中以(mathrm {D} ^ {0}或mathrm {K} ^ {-} mathrm {pi} ^ {+})。找不到狭窄共振(mathrm {D} ^ {* primepm}(2629))的证据。得出了强子Z衰变中窄(mathrm {D} ^ {* primepm}(2629))的产生的限制:

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