Crennell, D.J.
PI+ P --> PI+ PI+ N
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Production of the g(1640) Meson in pi p Interactions at 6 GeV/c

Crennell, D.J. ; Karshon, U. ; Lai, K.W. ; et al.
Phys.Lett.B 28 (1968) 136-139, 1968.
Inspire Record 54727 DOI 10.17182/hepdata.29107

We present the results of a spin determination of the g 1 − (1640) meson from an analysis of its dipion decay mode (π − π 0 ), and find that spin three (or maybe greater) is favored [1,2]. We also report on the observation of an isospin one KK̄ enhancement at 1640 MeV which is consistent with a new decay mode of the g meson. A relative branching ratio of (K K ̄ /ππ) = 8 ± 3 8 % is obtain from our analysis.

2 data tables
Table 1

The values of the cross sections were presented for reactions with KS finalstates for visible KS decays only.

Table 2

The cross section value is corrected for invisible KS decay.