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A Study of rho and Omega Production in pi+ p Interactions at 15.7-GeV/c

Ferguson, Merl McDonald, Jr. ;
Phys.Rev.D 36 (1987) 1961, 1987.
Inspire Record 210652 DOI 10.17182/hepdata.12775

We report the results of a study of ρ and ω production in π+p interactions at 15.7 GeV/c. The SLAC hybrid bubble-chamber facility was used to study reactions in which neutral particles are produced. Three tantalum plates inside the 40-in. bubble chamber and a large array of lead glass downstream of the chamber provided photon detection over a large solid angle. Final states with two neutral particles have been isolated with kinematic fits in which neutral pions were reconstructed in the plates and lead glass. Data from an earlier untriggered π+p bubble-chamber experiment at 15 GeV/c were used to obtain samples of events in channels which did not trigger the hybrid system. Cross sections for ρ and ω production are given for several exclusive final states. Relative ρ and ω production rates are studied. The ratio of nondiffractive ω to ρ0 production is measured to be ω/ρ0=0.44±0.07. We estimate the inclusive ω cross section to be 1.9±0.3 mb. The results are compared to the Lund model of low-pT hadronic reactions.

9 data tables
Table 1

OMEGA cross sections have been corrected to allow for all decay modes.

Table 2

No description provided.

Table 3

No description provided.

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Inclusive Production of Pions and $\rho^0$ in $\pi^+ p$ Interactions at 32-{GeV}/$c$

Azhinenko, I.V. ; Belokopytov, Yu.A. ; Chliapnikov, P.V. ; et al.
Sov.J.Nucl.Phys. 31 (1980) 628, 1980.
Inspire Record 143792 DOI 10.17182/hepdata.2720

None

48 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Eta and omega Meson Production in Medium-Energy pi+- p and K- p Interactions

The Aachen-Berlin-Bonn-CERN-Cracow-London-Vienna-Warsaw collaboration Bartke, J. ; Kirk, H. ; Kaltwasser, J. ; et al.
Nucl.Phys.B 118 (1977) 360-370, 1977.
Inspire Record 110525 DOI 10.17182/hepdata.48967

The production of η(550) and ω(780) mesons is studied in π ± p interactions at 16 GeV/ c and K − p interactions at 10 and 16 GeV/ c . Cross sections for exclusive channels are presented, and for the π + p data differential cross sections are given for quasi-inclusive production where the η or ω is required to be accompanied by charged particles only. Close similarities are observed between η, ω and also ϱ 0 (770) production in terms of longitudinal and transverse variables. By a rough estimate, the η, ω and ϱ 0 inclusive yields are found to be in the ratio 0.32 : 0.85 : 1, respectively, for 16 GeV/ c π + p collisions. For non-peripheral production we estimate this same ratio to be 0.34 : 0.9 : 1.

9 data tables
Table 1

Axis error includes +- 0.0/0.0 contribution (?////).

Table 2

Axis error includes +- 0.0/0.0 contribution (?////).

Table 3

DATA SUPPLIED BY A.A. LEBEDEV.

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Rho0 and f Production in pi+ p Interactions

The Aachen-Berlin-Bonn-CERN-Cracow-Heidelberg-Warsaw collaboration Deutschmann, M. ; Kirk, H. ; Sixel, P. ; et al.
Nucl.Phys.B 103 (1976) 426-444, 1976.
Inspire Record 100796 DOI 10.17182/hepdata.36056

Inclusive ϱ 0 and f(1270) production are analysed in π + p collisions at 8, 16 and 23 GeV/ c . The ϱ 0 cross section increases with energy such that the ϱ 0 /π − ratio remains constant. Emphasis is laid on cross sections as a function of the transverse momentum and of the Feynman x variable. The ϱ 0 's can be attributed to two sources: some ϱ 0 's are centrally produced, but there is a pronounced forward peak. The distribution of leptons coming from ϱ 0 decay is discussed.

5 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

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