Hadronic form factors from QCD Sum Rules

Details Hadronic form factors from QCD Sum Rules Hadronic form factors from QCD Sum Rules

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001ranp.conf..197n&link_type=abstract

RELATIVISTIC ASPECTS OF NUCLEAR PHYSICS. Proceedings of the Sixth International Workshop. Held 17-20 October 2000 in Caraguatatu

Physics

Nuclear Physics

Scientific paper

The ND(D*)Λc and DD*π form factors are evaluated in a full QCD sum rule calculation. We study the double Borel sum rule for the three point function of the hadron currents up to order six in the operator product expansion. The double Borel transform is performed with respect to the nucleon and Λc momenta, in the case of the ND(D*)Λc vertex and with respect of the D and D* momenta, in the case of the DD*π vertex, and the form factor is evaluated as a function of the momentum Q2 of the heavy meson or pion respectively. These form factors are relevant to evaluate the charmonium absorption cross section by hadrons. Our results are compatible with constant form factors in the ND(D*)Λc vertex and a gaussian form factor in the DD*π vertex.

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