Report/Internal Report

PUBDB-2017-12960

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Measuring QCD Anomalies in Hadronic Transitions Between Onium States

Voloshin, M. B.DESY* ; Zakharov, V. I.DESY*

1980

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Please use a persistent id in citations: doi:10.1103/PhysRevLett.45.688  doi:10.3204/PUBDB-2017-12960

Report No.: DESY-80-028

Abstract: It is argued that the ratio Γ((Q¯Q)′→(Q¯Q)η)Γ((Q¯Q)′→(Q¯Q)ππ) of hadronic transition rates between heavy quarkonium states is calculable within quantum chromodynamics in terms of triangle anomalies in the divergence of the axial current and in the trace of the energy-momentum tensor. In the case of transitions between ψ′ and Jψ the present analysis is consistent with the data. More reliable test can be provided by experimental study of the transitions between ϒ′′ and ϒ.

Keyword(s): QUANTUM CHROMODYNAMICS ; QUARK: QUARKONIUM ; PSI(3700): HADRONIC DECAY ; HADRONIC DECAY: PSI(3700) ; UPSILON(10400): HADRONIC DECAY ; HADRONIC DECAY: UPSILON(10400) ; PSI(3700): DECAY RATE ; DECAY RATE: PSI(3700) ; UPSILON(10400): DECAY RATE ; DECAY RATE: UPSILON(10400) ; FEYNMAN GRAPH: ANOMALY ; CURRENT: AXIAL-VECTOR ; TENSOR: ENERGY-MOMENTUM ; PSI MESONS: TRANSITION ; UPSILON MESONS: TRANSITION ; NUMERICAL CALCULATIONS: INTERPRETATION OF EXPERIMENTS ; UPSILON(10400) --> UPSILON(9500) ETA(549) ; UPSILON(10400) --> UPSILON(9500) PI+ PI- ; PSI(3700) --> J/PSI(3100) ETA(549) ; UPSILON(10400) --> UPSILON(9500) 2PI

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Contributing Institute(s):

1. DESY Retrocat (DESY(-2012))

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

Experiment(s):

1. No specific instrument

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Database coverage:
; ; ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF >= 5 ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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