Phys. Rev. D 53, R3487–R3491 (1996)Search for diffractive dissociation of a long-lived H dibaryon
We have searched for long-lived H dibaryons (six-quark uuddss states) in a neutral beam produced by 24.1 GeV/c p-Pt collisions. The signature was exclusive Λ0Λ0 production from diffractive dissociation of H's striking a plastic scintillator. We observed 40 Λ0Λ0 events with a background of 3.2 events, but see no evidence of H dissociation. Using our additional observation of 187±39 Λ0KS0 events produced by coherent diffractive dissociation of neutrons from carbon for normalization, we place an upper limit of 1 mb/sr on the production of H's with lifetimes ≳10-8 s. © 1996 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.53.R3487
DOI:
10.1103/PhysRevD.53.R3487
PACS:
13.85.Rm, 14.20.Pt, 25.40.Ve
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.