TTP94-31 HQQET: An Effective Theory Approach to Heavy Quarkonia Decays

TTP94-31 HQQET: An Effective Theory Approach to Heavy Quarkonia Decays

TTP94-31 HQQET: An Effective Theory Approach to Heavy Quarkonia Decays

We discuss systems containing a heavy quark and a heavy antiquark in the infinite mass limit of QCD. Studying the limit of equal velocities for both heavy particles, we formulate an effective theory approach to heavy quarkonia-like systems. The method is well suited to processes in which the two heavy quarks annihilate, such as electromagnetic and strong decays of charmonium and bottomonium and weak decays of $B_c$.

T. Mannel and G. Schuler
Phys. Lett. B349 181-189 1995
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