Reaction π− p → η′n in the 15–40 GeV/c momentum range

MECHANISMS OF THE REACTION π − p → a 00 ( 980 ) n → π 0 ηn AT HIGH ENERGIES

The main dynamical mechanisms of the reaction πp → a0(980)n → πηn at high energies, currently investigated at Serpukhov and Brookhaven, are considered in detail. It is shown that the observed forward peak in its differential cross section can be explained within the framework of the Regge pole model only by the conspiring ρ2 Regge pole exchange. The tentative estimates of the absolute πp → a0(9...

On momentum dependence of the reaction π − p → ωn near threshold

Se p 19 99 Production of the π − , π 0 in the reaction d ( e , pp ) e ′ π − π 0

Recently, the differential yield and target asymmetry of the reaction d(e, pp)eπ on the tensor polarized deuterium target have been presented in [1, 2], where the experimental procedure and basic assumption were described. A precise treatment of this reaction needs to investigate the reaction channels with an additional neutral pion production as a background to the leading reaction of a single...

THE N∗(1520) → ∆π AMPLITUDES EXTRACTED FROM THE γp → π+π−p REACTION AND COMPARISON TO QUARK MODELS

The γp → π+π−p reaction, in combination with data from the πN → ππN reaction, allows one to obtain the sand d-wave amplitudes for the N∗(1520) decay into ∆π with absolute sign with respect to the N∗(1520) → Nγ helicity amplitudes. In addition one obtains the novel information on the q dependence of the amplitudes. This dependence fits exactly with the predictions of the non-relativistic constit...

Analysis of correlation data of π + π − pair in p + Ta reaction using Coulomb wave function including momentum resolution and strong interaction effect

Analysis of correlation data of π + π − pair in p + Ta reaction using Coulomb wave function including momentum resolution and strong interaction effect Abstract We have proposed a new method for the Coulomb wave function correction which includes the momentum resolution for charged hadron pairs and applied it to the precise data on π + π − correlations obtained in p + Ta reaction at 70 GeV/c. I...