0000000001306385

AUTHOR

V.f. Perepelitsa

showing 14 related works from this author

First observation of strong OZI rule violation in πN interactions

1996

The data of the CERN WA56 experiment that triggered the fast proton produced in the $\pi^{+}p$ and $\pi^{-}p$ interactions at beam momenta 20 GeV/c and 12 GeV/c, respectively, are used to analyse the final states $ p_{f} \phi (\omega)\pi^{\pm}$. A large excess (up to two orders of magnitude) of the $\phi/\omega$ cross sections ratio over the OZI prediction is observed.

Nuclear physicsPhysicsNuclear and High Energy PhysicsParticle physicsLarge Hadron ColliderProtonOZI ruleHigh Energy Physics::ExperimentNuclear ExperimentOmegaParticle Physics - ExperimentOrder of magnitudeBeam (structure)Physics Letters B
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New evidence for a narrow state of mass 2.02 GeV/c2

1993

Abstract We report evidence for the existence of a narrow p p state with a mass of 2.02 GeV/c2 and a width of about 0.02 GeV/c2, produced centrally in π+p(π−p) interactions at 20(12) GeV/c in several final states, proceeding via baryon exchange mechanism, and that could be interpreted as a baryonium candidate. The data come from the analysis of WA56 experiment made at the CERN Ω spectrometer.

Nuclear physicsBaryonPhysicsNuclear and High Energy PhysicsParticle physicsLarge Hadron ColliderSpectrometerState (functional analysis)Nuclear Physics A
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Observation of meson central production in baryon exchange processes

1991

The central production of ρ0,f2 and ρ30 mesons is observed for the first time in processes which are originated by π+p reactions proceeding via baryon exchange mechanism. The data come from the CERN WA56 experiment designed to separate the baryon exchange reactions in π+p-collisions at 20 GeV/c. We report on the measured integral and differential cross sections and also give the density matrix elements of the meson resonances observed.

Density matrixPhysicsParticle physicsLarge Hadron ColliderPhysics and Astronomy (miscellaneous)MesonHigh Energy Physics::PhenomenologyNuclear TheoryNuclear physicsBaryonHigh Energy Physics::ExperimentProduction (computer science)Nuclear ExperimentEngineering (miscellaneous)Particle Physics - ExperimentZeitschrift für Physik C Particles and Fields
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Backward production of mesons associated with? ++(1232) in? + p interactions at 20 GeV/c

1991

We have analyzed backward meson production inπ + p reactions at 20GeV/c, which were measured in the CERN Ω spectrometer triggered by a fast proton (p f ), in experiment WA56. Production via baryon exchange of quasi-two-body final statesΔ ++ (1232)ρ 0 (770),Δ ++ (1232)f 2 (1270), andΔ ++ (1232)ρ 3 0 (1690) is clearly identified. The density matrix elements of meson resonances and ofΔ ++ (1232) are analyzed. We have observed also the reactionsπ + p→Δ ++ (1232)π 0 andπ + p→Δ ++ (1232)ω in thep f π + π 0 andp f π + π + π − π 0 final states.

Density matrixPhysicsBaryonNuclear physicsCrystallographyMeson productionPhysics and Astronomy (miscellaneous)ProtonMesonPiElementary particleEngineering (miscellaneous)OmegaZeitschrift f�r Physik C Particles and Fields
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"Table 2" of "First observation of strong OZI rule violation in pi N interactions."

1996

No description provided.

PI- P --> P OMEGA PI-PI- P --> P PHI PI-Integrated Cross SectionExclusiveCross Section4.839SIGPion-Proton Scattering
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"Table 10" of "First observation of strong OZI rule violation in pi N interactions."

1996

No description provided.

PI- P --> P OMEGA PI-PI- P --> P PHI PI-Integrated Cross SectionExclusiveCross Section4.839SIGPion-Proton Scattering
researchProduct

"Table 5" of "First observation of strong OZI rule violation in pi N interactions."

1996

No description provided.

6.198Integrated Cross SectionExclusivePI+ P --> P OMEGA PI+Cross SectionSIGPion-Proton Scattering
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"Table 9" of "First observation of strong OZI rule violation in pi N interactions."

1996

No description provided.

PI+ P --> P PHI PI+6.198Integrated Cross SectionExclusivePI+ P --> P OMEGA PI+Cross SectionSIGPion-Proton Scattering
researchProduct

"Table 6" of "First observation of strong OZI rule violation in pi N interactions."

1996

No description provided.

PI- P --> P OMEGA PI-Integrated Cross SectionExclusiveCross Section4.839SIGPion-Proton Scattering
researchProduct

"Table 8" of "First observation of strong OZI rule violation in pi N interactions."

1996

No description provided.

PI- P --> P OMEGA PI-PI- P --> P PHI PI-Integrated Cross SectionExclusiveCross Section4.839SIGPion-Proton Scattering
researchProduct

"Table 3" of "First observation of strong OZI rule violation in pi N interactions."

1996

No description provided.

PI+ P --> P PHI PI+6.198Integrated Cross SectionExclusiveCross SectionSIGPion-Proton Scattering
researchProduct

"Table 7" of "First observation of strong OZI rule violation in pi N interactions."

1996

No description provided.

PI+ P --> P PHI PI+6.198Integrated Cross SectionExclusivePI+ P --> P OMEGA PI+Cross SectionSIGPion-Proton Scattering
researchProduct

"Table 4" of "First observation of strong OZI rule violation in pi N interactions."

1996

No description provided.

PI- P --> P PHI PI-Integrated Cross SectionExclusiveCross Section4.839SIGPion-Proton Scattering
researchProduct

"Table 1" of "First observation of strong OZI rule violation in pi N interactions."

1996

No description provided.

PI+ P --> P PHI PI+6.198Integrated Cross SectionExclusivePI+ P --> P OMEGA PI+Cross SectionSIGPion-Proton Scattering
researchProduct