What can we learn from antihyperon-hyperon production?

✍ Scribed by Mary Alberg

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 225 KB
• Volume: 655
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/s0375-9474(99)00199-2

✦ Synopsis

Exclu,;ive antihyperon-hyperon production provides a test for models of strangeness production and final state interactions. Of primary interest is whether the reaction mechanism is better described in terms of meson-baryon or quark-gluon degrees of freedom. The sensitivity of these reactions to final state interactions should provide information on the ]~'Y states, which are not directly accessible by scattering experiments. Good agreement with existing data can be found for both quark and meson exchange models, but recently measured target depolarization data in .-~.A production should distinguish between them. These measurements may also test models proposed to explain the negative polarization of strange quarks in the proton.