Double P-wave charmonium production in e+e− annihilation

On the basis of perturbative QCD and relativistic quark model we calculate relativistic and bound state corrections in the production processes of a pair of -wave charmonium states. Relativistic factors in the production amplitude are taken into account connected with the relative motion of heavy qu...

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Bibliographic Details
Published in:Physics of atomic nuclei 2014-06, Vol.77 (6), p.777-785
Main Authors: Martynenko, A. P., Trunin, A. M.
Format: Article
Language:English
Subjects:
Elementary Particles and Fields
Particle and Nuclear Physics
Physics
Physics and Astronomy
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Summary:On the basis of perturbative QCD and relativistic quark model we calculate relativistic and bound state corrections in the production processes of a pair of -wave charmonium states. Relativistic factors in the production amplitude are taken into account connected with the relative motion of heavy quarks and the transformation law of the bound-state wave function to the reference frame of the moving -wave mesons. Relativistic corrections to the quark bound-state wave functions in the rest frame are considered by means of the Breit-like potential. It turns out that the examined effects change essentially nonrelativistic results of the cross section for the reaction e + + e − → h c + χ c J at the center-of-mass energy √ s = 10.6 GeV.
ISSN:1063-7788
1562-692X
DOI:10.1134/S106377881406009X