【摘 要】
：
A rovibrational model,including anharmonic,centrifugal,and Coriolis corrections,is used to calculate π,K,N,and ∑ orbital and radial resonances.The four orbital excitations of the π meson correspond to the b(1235),π2(1670),b3(2030),and π4(2250)resonances.I
【机 构】
：
Departamento de Química Fundamental,Universidade Federal de Pernambuco,Recife,50740-540,Brazil;Depar
论文部分内容阅读
A rovibrational model,including anharmonic,centrifugal,and Coriolis corrections,is used to calculate π,K,N,and ∑ orbital and radial resonances.The four orbital excitations of the π meson correspond to the b(1235),π2(1670),b3(2030),and π4(2250)resonances.Its first four radial excitations correspond to the π(1300),π(l800),π(2070),and π(2360)resonances.The orbital excitations of the K meson are interpreted as the K1(1270),K2(1 770),K3(2320),and K4(2500)resonances;its radial excitations correspond to the K(1460)and K(1830)resonances.The N orbital excitations are identifiied with the N(1520),N(1680),N(2190),N(2220),and N(2600)resonances.The first four radial excitations of the N family correspond to the N(1440),N(1880),N(2100),and N(2300)resonances.The orbital excitations of the ∑ baryon are associated with the ∑(1670),∑(1915),∑(2100),and ∑(2250)resonances,whereas its radial excitations are identified with the ∑(1660),∑(1770),and ∑(1880)resonances.The proposed rovi-brational model calculations show a good agreement with the corresponding experimental values and allow for the prediction of hadron resonances,thereby proving to be useful for the interpretation of excited hadron spectra.
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