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A Partial Wave Analysis of the Reaction π + p→ (π + π − π 0 ) Δ ++ at 16 GeV/c
Author(s) -
Otter G.,
Rudolf G.,
Naumann Th.,
Nowak S.
Publication year - 1980
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.19804920108
Subject(s) - physics , isospin , partial wave analysis , parity (physics) , nuclear physics , atomic physics , particle physics , pion
A partial wave analysis of the 3π‐system has been performed for the reaction π + p → (π + π − π 0 ) Δ ++ (1232) at 16 GeV/c. Beside the well‐established A 2 0 (1300), the resonant state ω* with isospin I = 0 and spin‐parity J P = 3 − decaying mainly into (ϱπ) has been found. Its mass and width have been determined to be M = (1.71 ± 0.03) GeV and Γ = (0.22 ± 0.10) GeV. The cross section for the reaction π + p → ω* (1700) Δ ++ (1232) is σ = (12 ± 6) μb.

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