Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1994-02-15
Phys.Rev. D49 (1994) 1490-1499
Physics
High Energy Physics
High Energy Physics - Phenomenology
22 Latex pages
Scientific paper
10.1103/PhysRevD.49.1490
Several general constraints are suggested to analyze the pionic valence-state wave function. It is found that the present model wave functions used in light-cone formalism of perturbative quantum chromodynamics have failed these requirements to fit the pionic form factor data and the reasonable valence-state structure function which does not exceed the pionic structure function data for $x \rightarrow 1$ simultaneously. Furthermore, it is pointed out that there is a possibility to find model wave functions which can satisfy all of general constraints. Also we show that there are two higher helicity $(\lambda_{1} + \lambda_{2} =\pm1)$ components in the light-cone wave function for the pion as a natural consequence from the Melosh rotation and it is speculated that these components should be incorporated into the perturbative quantum chromodynamics.
Huang Tao
Ma Bo-Qiang
Shen Qi-Xing
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