Vector meson + baryon resonance production in $pi$$sup +$p interactions at 7.1 GeV/c
From a large-statistics $pi$$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, Other Information: Orig. Receipt Date: 30-JUN-76
- Country of Publication:
- United States
- Language:
- English
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641004*
ANGULAR DISTRIBUTION- DELTA-1236 RESONANCES- DIFFERENTIAL CROSS SECTIONS- GEV RANGE 01-10- MATRIX ELEMENTS- OMEGA-784 RESONANCES- PARITY- PION-PROTON INTERACTIONS- PIONS PLUS- RHO-765 RESONANCES
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