Elsevier

Physics Letters B

Volume 277, Issues 1–2, 27 February 1992, Pages 23-26
Physics Letters B

Production of QQg hybrid mesons in NN annihilation

https://doi.org/10.1016/0370-2693(92)90950-9Get rights and content

Abstract

In a microscopic model with constituent quarks Q and gluons g, we have estimated the branching ratios for the formation of QQg hybrid mesons in antinucleon—nucleon NN annihilation reactions. We find that the measured production rate of the E(1420) meson observed in the reaction pp→π+πE at rest is much larger than that which we obtain under the assumption that the E is the 0−+ member of the QQg multiplet formed by coupling a 3S1 QQ pair to a transverse electric (TE) gluon normal mode. For the exotic 1−+ (1) member ĝ9 of this multiplet, we predict a larger production rate, at observable levels, for NN(11S0)→π+p̂.

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This manuscript has been authored under contract number DE-AC02-76-CH00016 with the US Department of Energy.

1

This work was supported in part by a Senior Fellowship of the Alexander von Humboldt Foundation.

2

Supported by the Deutsche Forschungsgemeinschaft.

3

Supported in part by the BMFT on Project No. 06 Tue 714.

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