Experimental evidence shows that the fundamental objects in the quantum chromodynamics (QCD) are the current quarks which are manifest in the high energy process. On the other hand, the constituent quarks as effective...Experimental evidence shows that the fundamental objects in the quantum chromodynamics (QCD) are the current quarks which are manifest in the high energy process. On the other hand, the constituent quarks as effective degree of freedom have been very successful in describing the hadron properties. The questions are: how do the constituent quarks relate to the QCD quarks? What are the general properties of the constituent quarks? These challenging problems have attracted many theoretical physicists, because they are very interesting and significant for understanding low-energy QCD, and展开更多
Since the sixties the meson exchange theory has been so developed that it can explain the nuclear force quite well. The success of the quark model and the development of quantum chromodynamics (QCD) make one hope to u...Since the sixties the meson exchange theory has been so developed that it can explain the nuclear force quite well. The success of the quark model and the development of quantum chromodynamics (QCD) make one hope to understand the mechan-展开更多
Quantum chromodynamics (QCD) is believed to be the basic theory of strong interaction. Experimental evidence shows that the fundamental parameters of the QCD Lagrangian, i.e. the quark masses and the strong coupling c...Quantum chromodynamics (QCD) is believed to be the basic theory of strong interaction. Experimental evidence shows that the fundamental parameters of the QCD Lagrangian, i.e. the quark masses and the strong coupling constant, are manifest in the high energy processes. On the other hand, the constituent quark model has been very successful in understanding the spectra and the static properties of hadrons. A challenging problem arises——how does the constituent quark model connect to the QCD theory? Many theoretical physicists try to solve this problem, because it is very interesting and significant not only for understanding constituent quark model (CQM) itself but also for understanding QCD in the low-energy regime, and so for improving the description of展开更多
Recently, Witten et al. indicated that baryons can be considered as solitons within the largeN_c(N_c is the color number)limit of QCD. In the case of two flavours, these solitons are deseribed by the Skyrme model. The...Recently, Witten et al. indicated that baryons can be considered as solitons within the largeN_c(N_c is the color number)limit of QCD. In the case of two flavours, these solitons are deseribed by the Skyrme model. The static solution of the Skyrme’s soliton展开更多
基金Project supported by the National Natural Science Foundation of Chinathe Nuclear Science Foundation of China.
文摘Experimental evidence shows that the fundamental objects in the quantum chromodynamics (QCD) are the current quarks which are manifest in the high energy process. On the other hand, the constituent quarks as effective degree of freedom have been very successful in describing the hadron properties. The questions are: how do the constituent quarks relate to the QCD quarks? What are the general properties of the constituent quarks? These challenging problems have attracted many theoretical physicists, because they are very interesting and significant for understanding low-energy QCD, and
文摘Since the sixties the meson exchange theory has been so developed that it can explain the nuclear force quite well. The success of the quark model and the development of quantum chromodynamics (QCD) make one hope to understand the mechan-
基金Project supported partly by the National Natural Science Foundation of Chinathe Nuclear Science Foundation of China.
文摘Quantum chromodynamics (QCD) is believed to be the basic theory of strong interaction. Experimental evidence shows that the fundamental parameters of the QCD Lagrangian, i.e. the quark masses and the strong coupling constant, are manifest in the high energy processes. On the other hand, the constituent quark model has been very successful in understanding the spectra and the static properties of hadrons. A challenging problem arises——how does the constituent quark model connect to the QCD theory? Many theoretical physicists try to solve this problem, because it is very interesting and significant not only for understanding constituent quark model (CQM) itself but also for understanding QCD in the low-energy regime, and so for improving the description of
文摘Recently, Witten et al. indicated that baryons can be considered as solitons within the largeN_c(N_c is the color number)limit of QCD. In the case of two flavours, these solitons are deseribed by the Skyrme model. The static solution of the Skyrme’s soliton
