0000000001302725

AUTHOR

G. Walder

showing 6 related works from this author

Search for the exoticΞ−−(1860)resonance in340GeV∕cΣ−-nucleus interactions

2004

We report on a high statistics search for the ${\ensuremath{\Xi}}^{\ensuremath{-}\ensuremath{-}}(1860)$ resonance in ${\ensuremath{\Sigma}}^{\ensuremath{-}}$-nucleus collisions at $340\phantom{\rule{0.3em}{0ex}}\mathrm{GeV}∕c$. No evidence for this resonance is found in our data sample which contains 676000 ${\ensuremath{\Xi}}^{\ensuremath{-}}$ candidates above background. For the decay channel ${\ensuremath{\Xi}}^{\ensuremath{-}\ensuremath{-}}(1860)\ensuremath{\rightarrow}{\ensuremath{\Xi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{\ensuremath{-}}$ and the kinematic range $0.15l{x}_{F}l0.9$ we find a $3\ensuremath{\sigma}$ upper limit for the production cross section of 3.1 and $3.5\phantom{\rul…

PhysicsNuclear and High Energy Physics010308 nuclear & particles physics0103 physical sciencesResonanceProduction (computer science)Atomic physics010306 general physicsNucleon01 natural sciencesPhysical Review C
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Measurement of the polarization of $$\Lambda ^0 , \overline \Lambda ^0 , \Sigma ^ + $$ and ?? produced in a ?? beam of 330 GeV/c

1995

The polarization of Lambda0 , AntiLambda0 , Sigma+ and Xi- inclusively produced in Sigma- induced interactions at 330 GeV has been measured in the experiment WA89 at CERN. This is the first measurement of polarization of baryons produced by a hyperon beam. No polarization of AntiLambda is observed, as was also the case in proton beam data. At transverse momenta of about 1~GeV/c Lambda0 and Sigma+ show little polarization, significantly lower than in the proton beam data, while Xi- have a polarization comparable to the polarization of Lambda0 produced in proton beams. The polarization of Lambda0, AntiLambda0, Sigma+ and Xi- inclusively produced in Sigma- induced interactions at 330 GeV has b…

PhysicsNuclear and High Energy PhysicsLarge Hadron ColliderHigh Energy Physics::PhenomenologyNuclear TheoryHyperonLambdaPolarization (waves)OmegaNuclear physicsBaryonNuclear fusionPhysics::Accelerator PhysicsHigh Energy Physics::ExperimentNuclear ExperimentBeam (structure)Particle Physics - Experiment
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"Table 3" of "Spectra and correlations of Lambda and Lambda produced in 340-GeV/c Sigma -+C and 260-GeV/c n+C interactions"

2002

Total inclusive LAMBDA LAMBDA and LAMBDABAR LAMBDABAR pair production crosssections for the SIGMA- beam on the Carbon target.

InclusiveStrange productionIntegrated Cross SectionPhysics::Accelerator PhysicsHigh Energy Physics::ExperimentSIGMA- NUCLEUS --> LAMBDABAR LAMBDABAR XCross SectionSIGSIGMA- NUCLEUS --> LAMBDA LAMBDA XSIGMA- C --> LAMBDABAR LAMBDABAR XSIGMA- C --> LAMBDA LAMBDA X
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"Table 1" of "Spectra and correlations of Lambda and Lambda produced in 340-GeV/c Sigma -+C and 260-GeV/c n+C interactions"

2002

Total inclusive LAMBDA and LAMBDABAR production cross sections for the SIGMA- beam on the Carbon target.

InclusiveStrange productionSIGMA- NUCLEUS --> LAMBDABAR XfungiSIGMA- NUCLEUS --> LAMBDA XIntegrated Cross SectionbacteriaPhysics::Accelerator PhysicsHigh Energy Physics::ExperimentCross SectionSIGSIGMA- C --> LAMBDABAR XSIGMA- C --> LAMBDA X
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"Table 4" of "Spectra and correlations of Lambda and Lambda produced in 340-GeV/c Sigma -+C and 260-GeV/c n+C interactions"

2002

Total inclusive LAMBDA LAMBDA pair production cross sections for the Neutron beam on the Carbon target.

inorganic chemicalsN NUCLEUS --> LAMBDA LAMBDA XInclusiveStrange productionbiological sciencesIntegrated Cross Sectiontechnology industry and agriculturePhysics::Accelerator Physicslipids (amino acids peptides and proteins)Cross SectionSIGN C --> LAMBDA LAMBDA X
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"Table 2" of "Spectra and correlations of Lambda and Lambda produced in 340-GeV/c Sigma -+C and 260-GeV/c n+C interactions"

2002

Total inclusive LAMBDA and LAMBDABAR production cross sections for the Neutron beam on the Carbon target.

inorganic chemicalsN NUCLEUS --> LAMBDABAR Xintegumentary systemStrange productionAstrophysics::High Energy Astrophysical PhenomenaNuclear TheoryIntegrated Cross Sectiontechnology industry and agricultureCross SectionSIGInclusiveN NUCLEUS --> LAMBDA Xbiological sciencesN C --> LAMBDABAR XPhysics::Accelerator Physicslipids (amino acids peptides and proteins)High Energy Physics::ExperimentNuclear ExperimentN C --> LAMBDA X
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