Chinese Physics C ( IF 3.6 ) Pub Date : 2021-07-26 , DOI: 10.1088/1674-1137/ac012b Douglas L. Bernardo 1 , Cristiano C. Bastos 2 , Antonio C. Pavo 1
A rovibrational model, including anharmonic, centrifugal, and Coriolis corrections, is used to calculate π, K,N, and Ʃ orbital and radial resonances. The four orbital excitations of the π meson correspond to the b(1235), π2(1670), b 3(2030), and π4(2250) resonances. Its first four radial excitations correspond to the π(1300), π(1800), π(2070), and π(2360) resonances. The orbital excitations of the K meson are interpreted as the K 1(1270), K 2(1770), K 3(2320), and K 4(2500) resonances; its radial excitations correspond to the K(1460) and K(1830) resonances. The N orbital excitations are identified 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 Ʃ baryon are associated with the Ʃ(1670), Ʃ(1915), Ʃ(2100), and Ʃ(2250) resonances, whereas its radial excitations are identified with the Ʃ(1660), Ʃ(1770), and Ʃ(1880) resonances. The proposed rovibrational 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.
中文翻译:
强子共振作为振动状态 由巴西资助机构 CNPq – Conselho Nacional de Desenvolvimento Cientfico e Tecnolgico 和 CAPES – Coordenao de Aperfeioamento de Pessoal de Nvel Superior 提供支持
包括非谐波、离心和科里奥利校正在内的振动模型用于计算 π、K、N和 Ʃ 轨道和径向共振。π 介子的四个轨道激发对应于b (1235)、π 2 (1670)、b 3 (2030) 和 π 4 (2250) 共振。它的前四个径向激发对应于 π(1300)、π(1800)、π(2070) 和 π(2360) 共振。K介子的轨道激发被解释为K 1 (1270)、K 2 (1770)、K 3 (2320) 和K 4(2500) 共振;其径向激发对应于K (1460) 和K (1830) 共振。所述Ñ轨道激励被确定了与Ñ(1520),Ñ(1680),Ñ(2190),Ñ(2220),和Ñ(2600)共振。N族的前四个径向激发对应于N (1440)、N (1880)、N (2100) 和N(2300) 共振。Ʃ重子的轨道激发与Ʃ(1670)、Ʃ(1915)、Ʃ(2100)和Ʃ(2250)共振有关,而其径向激发与Ʃ(1660)、Ʃ(1770)有关, 和Ʃ(1880) 共振。提出的振动模型计算与相应的实验值非常吻合,可以预测强子共振,从而证明对解释激发的强子光谱很有用。