Measurement of J/ψ production in continuum e+e- annihilations near √s = 10.6 GeV

Measurement of J/ψ production in continuum e+e- annihilations near √s = 10.6 GeV

The cross section σe+e- → J/ψX = 2.52 ± 0.21 ± 0.21 pb was measured. Restricting to p* > 2 GeV/c, 1.87 ± 0.10 ± 0.15 pb were found. The total cross section and the angular distribution favor the NRQCD calculation over the color singlet model.

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Hlavní autoři: Aubert, B, Boutigny, D, Gaillard, J, Hicheur, A, Karyotakis, Y, Lees, J, Robbe, P, Tisserand, V, Palano, A, Chen, G, Chen, J, Qi, N, Rong, G, Wang, P, Zhu, Y, Eigen, G, Reinertsen, P, Stugu, B, Abbott, B, Abrams, G, Borgland, A, Breon, AB, Brown, D, Button-Shafer, J, Cahn, R
Médium: Journal article
Jazyk:English
Vydáno: 2001

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