G. Marchesini, E. Onofri
Published 2004-04-27, updated 2004-06-29Version 3
It has been recently found that the heavy quark-antiquark QQbar pair multiplicity, in certain phase space region (QQbar at short distance, soft and with small velocity), satisfies an evolution equation formally similar to the BFKL equation for the high energy scattering amplitude. We find the exact solution of the QQbar-equation and discuss the differences with the BFKL scattering amplitude.
Comments: 18 pages, 3 figures, using JHEP3.cls Corrected typos
Journal: JHEP 0407 (2004) 031
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