Production of a+0-Mesons in the Production of a+0-Mesons in the Reaction pp ® da+0


Production of a+0-Mesons in the Production of a+0-Mesons in the Reaction pp ® da+0

Müller, H.

We investigate the reaction pp ® da0 + at COSY and SIS energies
together with accompanying background reactions and inclusive particle yields.
The a0 + is considered as a usual quark model state with two decay channels
a0 + ® K+[`(K0)] and a0 + ® p + h.
Cross sections for a0 + production as well as for the corresponding nonresonant channels
pp ® dK+[` (K0)] and pp ®dp + h are compared.
Especially in case of the final channel dp + h
high statistics measurements are necessary to extract the a0 + signal from the nonresonant background.

  • Eur. Phys. J. A 11 (2001) 113

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