Diphoton generalized distribution amplitudes
نویسندگان
چکیده
منابع مشابه
Generalized Distribution Amplitudes at the Z pole
We investigate the exclusive two-pion production at the Z-pole through the process ee → Z → ππγ. In the kinematical region where the invariant mass of the two pions is much smaller than the mass of the Z boson, the process can be factorized into the convolution of a hard coefficient and a soft matrix element, the generalized distribution amplitude of two pions. We calculate the differential cro...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2008
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.78.034009