c quark

Study on screening of rennet in Quark procession;

夸克生产中凝乳酶筛选的研究

It is the spin of the quarks and precession of quarks-system caused byspin and electromagnetic-weak forces that keeps the particle world stable.

夸克体系是由自旋着的夸克在电磁－弱相互作用下产生的进动维系稳定的；②物质的质量源于夸克的质量，夸克的质量又源于它的自旋。

According to the relationship between the strong interaction force range and strong coupling constant among quarks in a hadron,a brief computational method on the pocket radius of a hadron is given in this paper .

根据夸克间的强作用力程随强跑动耦合常数的变化关系 ,给出了强子口袋半径的一种简明的计算方

Taking linear confining interaction as well as one-gluon-exchange as the mediating coupling,the authors dedrive the coupling potential between quark and quark-antiquark pair,which will be useful to consider the coupling between two and four quark states.

推导了夸克与夸克-反夸克对之间通过不仅单胶子交换,而且线性禁闭相互作用的耦合相互作用势。

Based on the spin-dependent quark distribution,the spin-dependent proton structure function in the large x region is presented in the paper.

从自旋相关的价夸克分布出发,在部分子四动量较大的区域(大x区域),给出了自旋相关的质子结构函数,并将其理论结果与Capella模型给出的结构函数及NMC实验结果进行了比较,其理论结果与实验符合较好。

Taking into account SU(6) symmetrical broken and the correction from PQCD predictions,the paper,with the aid of the quark-diquark picture,from Cappela s proton structure model,extracts a spin-correlation quark distribution with more explicit physical significance.

本文采用质子的夸克-双夸克模型图像,考虑到SU(6)对称性破缺及来自PQCD语言的修正,从Cappela的质子结构模型中提取出了具有更为明确物理意义的自旋相关的夸克分布。

Based on the quark model, the Q 2 evolution of the nucleon spin structure functions in the small Q 2 region is calculated.

利用夸克模型计算了核子的自旋相关结构函数随Q2 的依赖关系 。

The energies of the low-lying isoscalar and isovector ud■ configurations with spin-parity J~P=0~+, 1~+,and 2~+ are calculated in the chiral SU(3) quark model and the extended chiral SU(3) quark model by using the variational method.

在手征SU(3)夸克模型和扩展的手征SU(3)夸克模型的框架下,用变分的方法系统地研究了同位旋为0、1,自旋宇称为0~+、1~+和2~+的ud■四夸克系统6个低组态的能量。

We study the decay widths of the narrow resonances D*sj(2317) and Dsj(2460) in the chiral quark model, together with the well-known D* and D*s mesons.

用夸克模型结合Ds,D*s,讨论窄共振态D*sj(2317),Dsj(2460)。