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https://hdl.handle.net/2445/12824
Title: | New predictions for inclusive heavy-quarkonium P-wave decays |
Author: | Brambilla, Nora Eiras, Dolors Pineda, Antonio (Pineda Ruiz) Soto Riera, Joan Vairo, Antonio |
Keywords: | Cromodinàmica quàntica Fenomenologia (Física) Partícules (Física nuclear) Quarks Quantum chromodynamics Phenomenological theory (Physics) Particles (Nuclear physics) Quarks |
Issue Date: | 2002 |
Publisher: | American Physical Society |
Abstract: | We show that some nonrelativistic quantum chromodynamics color-octet matrix elements can be written in terms of (derivatives of) wave functions at the origin and of nonperturbative universal constants once the factorization between the soft and ultrasoft scales 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 numbers and with different heavy flavors. In particular, we can estimate the ratios of the decay widths of bottomonium P-wave states from charmonium data. |
Note: | Reproducció digital del document proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevLett.88.012003 |
It is part of: | Physical Review Letters, 2002, vol. 88, núm. 1, p. 012003-1-012003-4 |
URI: | https://hdl.handle.net/2445/12824 |
Related resource: | http://dx.doi.org/10.1103/PhysRevLett.88.012003 |
ISSN: | 0370-2693 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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