Elsevier

Nuclear Physics B

Volume 183, Issue 3, 1 June 1981, Pages 349-366
Nuclear Physics B

Production of ϱ±, g1700±, A2±, K890∗± and K1420∗± at 50 GeV/c

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Abstract

Mesons decaying into π0 or η and one charged meson were studied using a liquid-argon calorimeter in a non-magnetic double-arm spectrometer. Cross sections and energy dependences are presented. The ϱ± production mechanisms are discussed in detail: ω and π exchange contribute the largest fractions, but also A2 exchange is present. ϱ± production by ω exchange is shown to follow the energy behaviour predicted by the Regge trajectory αω(t) = 0.4 − |t|.

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