Vector meson + baryon resonance production in $pi$$sup +$p interactions at 7.1 GeV/c

Journal Article · Fri Aug 01 04:00:00 EDT 1975 · Phys. Rev., D, v. 12, no. 3, pp. 693-718

OSTI ID:4176906

Chung, S U; Protopopescu, S D; Eisner, R L; Flatte, S M

From a large-statistics $pi$$sup +$p experiment at 7.1 GeV/c, data are presented on the reactions $pi$$sup +$$Yields$rho$sup 0$$delta$$sup ++$(1238) and $pi$$sup +$p $Yields$$omega$$delta$$sup ++$(1238). Cross sections, differential cross sections, and vector-meson single-density-matrix elements are presented and a general comparison of the production properties of the two reactions is given. In addition to (rho,$omega$) $delta$$sup ++$(1238) production there is also strong evidence for production of a $pi$$sup +$p enhancement with mass approx.1880 MeV, GAMMAapprox.200 MeV, and Jgreater than or equal to7/2 produced in association with the rho and $omega$ resonances. Detailed properties of this structure are presented and its production mechanism is compared with that of the corresponding $delta$ (1238) reactions. This state is also observed in the reaction K$sup +$$p$$Yields$K*$sup 0$(890) $delta$$sup ++$(1880) at 12.0 GeV/c, for which data are also presented.

• Research Organization: Brookhaven National Laboratory, Upton, New York 11973
• NSA Number: NSA-33-004139
• OSTI ID: 4176906
• Journal Information: Phys. Rev., D, v. 12, no. 3, pp. 693-718, Journal Name: Phys. Rev., D, v. 12, no. 3, pp. 693-718; ISSN PRVDA
• Country of Publication: United States
• Language: English

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