6533b853fe1ef96bd12abffe

RESEARCH PRODUCT

Description of πp→Δ(1232)π and πp→Δ(1232)ρ(770) reaction proceeding via baryon exchange mechanism

A. A. GrigoryanAntonio FerrerN. AkopovV. PerepelitsaG. G. ArakelyanG. N. Khachatryan

subject

Nuclear physicsBaryonPhysicsParticle physicsPhysics and Astronomy (miscellaneous)Absorption (chemistry)Engineering (miscellaneous)

description

We analyze the available experimental data on the backward production processes πN→Δπ and πN→ Δπ in the framework of the strong-cut Reggeized absorption model, which is based on the exchange of the baryon Regge trajectoriesNα and Δδ with the associated cuts. The model describes rather well the data on the differential cross sections at incident π momenta ranging from 2.15 to 20 GeV/c. An essential contribution of Δδ exchange even at small energies (Elab of the order of a few GeV) is found. A model-independent analysis of data confirms this fenomena.

https://doi.org/10.1007/bf01562342