De Fazio, F. and Pennington, M. R. (2001) 'Probing the structure of f0(980) through radiative /phi decays.', Physics letters B., 521 (1-2). pp. 15-21.
We consider the radiative transition φ→f0γ, which is a sensitive probe of the nature of the f0(980) particle. Using the QCD sum-rule technique, we estimate the branching ratio of such decay mode to be: , in fair agreement with present experimental data. As for the structure of the f0, the result suggests a sizeable component; however, this result does not exclude the possibility of further components and allows a more complex structure than indicated by the naive quark model.
|Keywords:||Multi-quark hadrons, Scalar mesons, Resonance physics, Chiral-symmetry, States, model, QCD, Amplitudes, Molecules, Factories.|
|Full text:||PDF - Other (179Kb)|
|Publisher Web site:||http://dx.doi.org/10.1016/S0370-2693(01)01200-X|
|Record Created:||06 May 2008|
|Last Modified:||09 Aug 2011 11:55|
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