Heavy quark distribution function in hadrons

Details Heavy quark distribution function in hadrons Heavy quark distribution function in hadrons

2008-09-19

arxiv.org/abs/0809.3431v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 1 fig. Talk presented at HSQCD 2008, to be published in Proceedings

Scientific paper

The moments of the heavy quark-parton distribution functions in a heavy
pseudoscalar meson, obtained in QCD sum rules, are expanded in the inverse
heavy quark. Comparison with the finite mass results reveals that while the
heavy mass expansion works reasonably well for the $b$ quark, one has to take
into account terms of higher than $(1/m_c)^2$ order for the $c$ quark.

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