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Open Quantum Systems Decoherence

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

PubMed
Authors: Brambilla N, Eiras D, Pineda A, Soto J, Vairo A

Year

2002

Paper ID

13152

Status

Peer-reviewed

Abstract Read

~2 min

Abstract Words

102

Citations

61

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.

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  • 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...

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References & Citation Signals

[1] DOI https://doi.org/10.1103/PhysRevLett.88.012003 [2] Publisher https://pubmed.ncbi.nlm.nih.gov/11800937/

Local Citation Graph (Related-Paper Links)

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External citation index: OpenAlex citation signal • updated 2026-06-13 03:40:25

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