Off-Shell Photon Light-Cone Transverse Wavefunction at Leading Twist
YU Ran, LIU Jue-Ping, ZHU Kai
College of Physics and Technology, Wuhan University, Wuhan 430072
Off-Shell Photon Light-Cone Transverse Wavefunction at Leading Twist
YU Ran;LIU Jue-Ping;ZHU Kai
College of Physics and Technology, Wuhan University, Wuhan 430072
关键词 ：
11.15.Tk ,
12.38.Lg ,
11.55.Hx ,
14.70.Bh
Abstract ： The explicit expression of the transverse photon wavefunction Фγ⊥ (u,P2 ) at the leading twist with the on-shell and the off-shell momenta are calculated in the effective low-energy theory derived from the instanton vacuum of QCD, where both the space-like region as well as the time-like one of the momenta for the virtual photons are investigated. In addition, the problem about the consistency between the two different definitions of the transverse photon wavefunction with chiral-odd Dirac structure, σμv , has been considered, and proven to be true at the leading order by means of the sum rule method. A brief discussion of the dependence of the transverse light-cone photon wavefunction Фγ⊥ (u,P2 ) nd its coupling, Fγ ⊥ (u,P2 ) to the corresponding quark--antiquark current with respect to P2 , and that about the end-point behaviour of the transverse photon wavefunction is given.
Key words ：
11.15.Tk
12.38.Lg
11.55.Hx
14.70.Bh
出版日期: 2005-10-01
引用本文:
YU Ran;LIU Jue-Ping;ZHU Kai. Off-Shell Photon Light-Cone Transverse Wavefunction at Leading Twist[J]. 中国物理快报, 2005, 22(10): 2415-2518.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2005/V22/I10/2415
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2005, Vol. 22 
