Dual parametrization and Abel transform tomography for twist-3 DVCS
نویسندگان
چکیده
منابع مشابه
Wandzura - Wilczek approximation for the twist - 3 DVCS amplitude
We present a derivation of Wandzura-Wilczek (WW) like relations for skewed par-ton distributions. It is demonstrated for photon-pion scattering that the skewed twist-3 parton distributions contributing to the DVCS amplitude have discontinuities at the points x = ±ξ in the WW approximation. This may lead to a violation of factorisation for the twist-3 DVCS amplitude with transverse polarization ...
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متن کاملOn the Wandzura-Wilczek approximation for the twist-3 DVCS amplitude
We present a derivation of Wandzura-Wilczek (WW) like relations for skewed parton distributions. It is demonstrated for photon-pion scattering that for transverse photon polarization the skewed twist-3 parton distributions contributing to the DVCS amplitude have discontinuities at the points x = ±ξ in the WW approximation. Unless these discontinuities are cancelled by the neglected genuine high...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2010
ISSN: 0550-3213
DOI: 10.1016/j.nuclphysb.2010.02.008