New predictions for inclusive heavy-quarkonium P-wave decays

Details New predictions for inclusive heavy-quarkonium P-wave decays New predictions for inclusive heavy-quarkonium P-wave decays

2001-09-14

arxiv.org/abs/hep-ph/0109130v1

Phys.Rev.Lett. 88 (2002) 012003

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, revtex

Scientific paper

10.1103/PhysRevLett.88.012003

We show that some NRQCD colour-octet matrix elements can be written in terms of (derivatives of) wave functions at the origin and non-perturbative universal constants once the factorization between the soft and ultrasoft scale is achieved by using an effective field theory where only ultrasoft degrees of freedom are kept as dynamical entities. This allows us to derive a new set of relations between inclusive heavy-quarkonium P-wave decays into light hadrons with different principal quantum number and with different heavy flavour. In particular, we can estimate the branching ratios of bottomonium P-wave states by using charmonium data.

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