Heavy and light quarks in the instanton vacuum

Abstract

Assuming the gluon field is well approximated by instanton configurations we derive a light quarks determinant and calculate its contribution to the specific heavy quarks correlators -- namely, the heavy quark propagator and heavy quark-aniquark correlator, receiving the instanton generated light-heavy quarks interaction terms contributions. With these knowledge we calculate the light quark contribution to the interaction between heavy quarks, which might be essential for the properties of a few heavy quarks systems.

Talk given at the workshop "Hadron Nuclear Physics 2011", APCTP, Pohang, Republic of Korea, Feb. 21-24, 2011. The workshop proceedings will be published at the EPJ web of conferences (http://www.epj-conferences.org/)

Cited by in corpus (2)

• Dynamical gluon mass in the instanton vacuum model
• Heavy pseudoscalar-meson decay constants with strangeness from the extended nonlocal chiral-quark model