Light-front QCD with Wilson fermions on a transverse lattice

被引:25
作者
Burkardt, M [1 ]
El-Khozondar, H [1 ]
机构
[1] New Mexico State Univ, Dept Phys, Las Cruces, NM 88003 USA
来源
PHYSICAL REVIEW D | 1999年 / 60卷 / 05期
关键词
D O I
10.1103/PhysRevD.60.054504
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
In the light-front (LF) formulation of field theory, it is possible to write down a chirally invariant mass term. It thus appears as if one could solve the species doubling problem on a light-front quantized transverse lattice in a chirally invariant way. However, upon introducing link fields and after perturbative renormalization, one finds exactly the terms in the LF Hamiltonian as if one had started from the standard Wilson action in the first place. The only difference is the disappearance of the quark helicity flip terms for modified Wilson fermions for m-->0 in the canonical Hamiltonian - a result which is likely to change after non-perturbative renormalization. As an application of the Wilson formulation for fermions on a I lattice, we calculate spectrum, distribution functions and distribution amplitudes for mesons below 2 GeV in a truncated Fock space. [S0556-2821(99)04515-4].
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