PI+ P --> OMEGA DELTA(1950F37)++
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Study of Vector Meson Baryon Resonance Production in pi+ p Interactions at 7.1-GeV/c

Chung, S.U. ; Protopopescu, S.D. ; Eisner, R.L. ; et al.
Phys.Rev.D 12 (1975) 693, 1975.
Inspire Record 99147 DOI 10.17182/hepdata.48154

From a large-statistics π+p experiment at 7.1 GeV/c, data are presented on the reactions π+p→ρ0Δ++(1238) and π+p→ωΔ++(1238). Cross sections, differential cross sections, and vector-meson single-density-matrix elements are presented and a general comparison of the production properties of the two reactions is given. In addition to (ρ,ω)Δ++(1238) production there is also strong evidence for production of a π+p enhancement with mass ∼ 1880 MeV, Γ∼200 MeV, and J≥72 produced in association with the ρ and ω resonances. Detailed properties of this structure are presented and its production mechanism is compared with that of the corresponding Δ(1238) reactions. This state is also observed in the reaction K+p→K*0(890)Δ++(1880) at 12.0 GeV/c, for which data are also presented.

15 data tables
Table 1

STATISTICAL ERRORS ONLY.

Table 2

No description provided.

Table 3

JACKSON FRAME.

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Observation of a High-Mass Delta++ Produced in Association with K*, rho and omega

Chung, S.U. ; Protopopescu, S.D. ; Eisner, R.L. ; et al.
Phys.Lett.B 57 (1975) 384-388, 1975.
Inspire Record 98501 DOI 10.17182/hepdata.27841

Strong evidence is presented for quasi-two-body production of a π + p enhancement with mass 1881±6MeV and width 219±23MeV, recoiling off vector mesons ϱ O and ω from π + p interactions at 7.1 GeV/ c and K * o (890) from K + p interactions at 12 GeV/ c . The most probable J P assignment for this object is 7/2 + , making it a likely candidate for the Regge recurrence of Δ(1236).

2 data tables
Table 1

JACKSON FRAME.

Table 2

JACKSON FRAME.