The quark-antiquark （q^-q） spectrum is studied by solving the Schrōdinger equation in the framework of nonrelativistic constituent quark model. An overall good fit to the experimental data of meson is obtained. The...The quark-antiquark （q^-q） spectrum is studied by solving the Schrōdinger equation in the framework of nonrelativistic constituent quark model. An overall good fit to the experimental data of meson is obtained. The interactions between quark and antiquark consist of quadratic colour confinement-exchange, one-gluon-exchange, and Goldstone-boson-exchange potentials.展开更多
Motivated by experimental measurements,we investigate the p-Ωcorrelation functions and interactions on the basis of a quark model.By solving the inverse scattering problem with channel coupling,we renormalize the cou...Motivated by experimental measurements,we investigate the p-Ωcorrelation functions and interactions on the basis of a quark model.By solving the inverse scattering problem with channel coupling,we renormalize the coupling to other channels into an effective single-channel p-Ωpotentials.The effects of Coulomb interaction and spin-averaging are also discussed.According to our results,the depletion of the p-Ωcorrelation functions,which is attributed to the J^(P)=2^(+)bound state not observed in the ALICE Collaboration's measurements(Nature 588,232(2020)),can be explained by the contribution of the attractive J^(P)=1^(+)component in spin-averaging.So far,we have provided a consistent description of the p-Ωsystem from the perspective of the quark model,including the energy spectrum,scattering phase shifts,and correlation functions.The existence of the p-Ωbound state has been supported by all three aspects.Additionally,a sign of the p-Ωcorrelation function's subtle sub-unity part can be seen in experimental measurements,which warrants more precise verification in the future.展开更多
基金Supported by the National Natural Science Foundation of China under Grant No 90503011.
文摘The quark-antiquark （q^-q） spectrum is studied by solving the Schrōdinger equation in the framework of nonrelativistic constituent quark model. An overall good fit to the experimental data of meson is obtained. The interactions between quark and antiquark consist of quadratic colour confinement-exchange, one-gluon-exchange, and Goldstone-boson-exchange potentials.
基金supported by the National Natural Science Foundation of China(Grant Nos.11675080,11775118,12305087,11535005,and 11865019)supported by the Postgraduate Research and Practice Innovation Program of Jiangsu Province(Grant No.KYCX23_1675)+1 种基金the Doctoral Dissertation Topic Funding Program(Grant No.YXXT23-027)supported by the Start-up Funds of Nanjing Normal University(Grant No.184080H201B20)。
文摘Motivated by experimental measurements,we investigate the p-Ωcorrelation functions and interactions on the basis of a quark model.By solving the inverse scattering problem with channel coupling,we renormalize the coupling to other channels into an effective single-channel p-Ωpotentials.The effects of Coulomb interaction and spin-averaging are also discussed.According to our results,the depletion of the p-Ωcorrelation functions,which is attributed to the J^(P)=2^(+)bound state not observed in the ALICE Collaboration's measurements(Nature 588,232(2020)),can be explained by the contribution of the attractive J^(P)=1^(+)component in spin-averaging.So far,we have provided a consistent description of the p-Ωsystem from the perspective of the quark model,including the energy spectrum,scattering phase shifts,and correlation functions.The existence of the p-Ωbound state has been supported by all three aspects.Additionally,a sign of the p-Ωcorrelation function's subtle sub-unity part can be seen in experimental measurements,which warrants more precise verification in the future.
