6533b852fe1ef96bd12aa31a
RESEARCH PRODUCT
Exploring the potential of antihyperons in nuclei with antiprotons
J. Pochodzallasubject
PhysicsNuclear and High Energy PhysicsParticle physicsMesonmedia_common.quotation_subjectHigh Energy Physics::PhenomenologyNuclear TheoryMonte Carlo methodHyperonFOS: Physical sciencesEnergy–momentum relationAsymmetryNuclear physicsTransverse planePair productionAntiprotonHigh Energy Physics::ExperimentNuclear Experiment (nucl-ex)Nuclear ExperimentNuclear Experimentmedia_commondescription
A simple method to explore the interaction of antihyperons in nuclei by exclusive hyperon-antihyperon pair production close to threshold in antiproton nucleus interactions is proposed. Due to energy and momentum conservation event-by-event transverse momentum correlations of the produced hyperons and antihyperons contain information on the difference between their potentials. A schematic Monte Carlo simulation is used to illustrate the sensitivities of the proposed method for the reaction 1.66GeV/c antiproton+$^{12}$C $\to {\Lambda\bar{\Lambda}}$. For produced D-meson pairs at 6.7GeV/c the sensitivity of the transverse momenta correlation will probably be to small to deduce differences between the potentials for D$^+$ and D$^-$ mesons. However, for $\Xi\bar{\Xi}$ pairs produced at 2.9GeV/c the asymmetry is sufficiently sensitive to predicted differences between the $\Xi$ and $\bar{\Xi}$ potentials.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-07-21 | Physics Letters B |