Phys. Rev. D 58, 071901(R) (1998) [5 pages]Nonvanishing zero modes in the light-front current
We find that the zero mode (q+=0 mode of a continuum theory) contribution is crucial to obtaining the correct values of the light-front current J- in the Drell-Yan (q+=0) frame. In the exactly solvable model of (1+1)-dimensional scalar field theory interacting with gauge fields, we quantify the zero-mode contribution and observe that the zero-mode effects are very large for the light meson form factors even though they are substantially reduced for the heavy meson cases. © 1998 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.58.071901
DOI:
10.1103/PhysRevD.58.071901
PACS:
11.15.Bt, 11.10.Kk, 11.40.-q
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