Poincare' invariance constraints on NRQCD and potential NRQCD

Details Poincare' invariance constraints on NRQCD and potential NRQCD Poincare' invariance constraints on NRQCD and potential NRQCD

2003-06-12

arxiv.org/abs/hep-ph/0306107v3

Phys.Lett.B576:314-327,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, typo in Eq. (97) corrected

Scientific paper

10.1016/j.physletb.2003.09.100

We discuss the constraints induced by the algebra of the Poincare' generators
on non-relativistic effective field theories. In the first part we derive some
relations among the matching coefficients of the HQET (and NRQCD), which have
been formerly obtained by use of reparametrization invariance. In the second
part we obtain new constraints on the matching coefficients of pNRQCD.

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