Heavy-Heavy-Light Quark Potential in Two Approaches
نویسندگان
چکیده
منابع مشابه
Heavy-heavy-light quark potential in two approaches
There are a large number of studies about the interquark potential in hadrons. The interquark potential is mainly generated by gluon dynamics reflecting the SU(3) gauge symmetry. In particular, as many lattice QCD studies, the static and quenched approximation produces the only gluonic potential. However, realistic hadrons include not only gluons but also quarks, and quarks affect the interquar...
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We perform the first study for the heavy-heavy-light quark (QQq) potential in SU(3) quenched lattice QCD with the Coulomb gauge. The calculations are done with the standard gauge and O(a)-improved Wilson fermion action on the 16 lattice at β = 6.0. We calculate the energy of QQq systems as the function of the distance R between the two heavy quarks, and find that the QQq potential is well descr...
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Matching of light-light quark currents in QCD with a heavy flavour and in the lowenergy effective QCD is calculated in MS at two loops. Heavy-light HQET currents are similarly considered. Consider QCD with nl light flavours and a single heavy one having mass M . Processes involving only light fields with momenta pi ≪ M can be described by an effective field theory — QCD with nl flavours plus 1/...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics Supplement
سال: 2008
ISSN: 0375-9687
DOI: 10.1143/ptps.174.270