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Search for the {ital H}-Dibaryon in {sup 3}He{ital (K}{sup {ital -}}{ital ,K}{sup {ital +}}{ital )Hn}

Journal Article · · Physical Review Letters
OSTI ID:496825
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  1. Department of Physics, University of Birmingham, Birmingham B15 2TT (United Kingdom)
  2. Brookhaven National Laboratory, Upton, Long Island, New York 11973 (United States)
  3. Department of Physics, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 (United States)
  4. Fakultaet fuer Physik, University of Freiburg, D-79104 Freiburg (Germany)
  5. Indiana University Cyclotron Facility, Bloomington, Indiana 47405 (United States)
  6. Department of Physics, Kyoto University, Sakyo-Ku, Kyoto 606 (Japan)
  7. Faculty of Science, Kyoto Sangyo University, Kyoto 603 (Japan)
  8. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
  9. Department of Physics, University of Manitoba, Winnipeg, Manitoba R3T 2N2 (Canada)
  10. Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87131 (United States)
  11. TRIUMF, Vancouver, British Columbia V6T 2A3 (Canada)
  12. Department of Physics and Astronomy, Vassar College, Poughkeepsie, New York 12601 (United States)
  13. Physics Department, Yale University, New Haven, Connecticut 06511 (United States)
+ Show Author Affiliations
A high-sensitivity search for the strangeness S=-2 H dibaryon (uuddss) was conducted at the Brookhaven Alternating Gradient Synchrotron (AGS) using the reaction {sup 3}He(K{sup -},K{sup +})Hn at P{sub K{sup -}}=1.8GeV/ c. The sensitivity was independent of H lifetime and decay modes. No evidence for H production was observed. In a mass range extending from about 50 to 380MeV/c{sup 2} below the {Lambda}{Lambda} threshold of 2.231GeV/c{sup 2}, the resulting upper limits on the H-production cross section are in the range of 0.058 to 0.021{mu}b/sr, approximately 1 order of magnitude below a theoretical calculation. {copyright} {ital 1997} {ital The American Physical Society}
Research Organization:
Brookhaven National Laboratory
DOE Contract Number:
AC02-76CH00016; FG02-91ER40609; FG03-94ER40821
OSTI ID:
496825
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 19 Vol. 78; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
English

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Related Subjects

66 PHYSICS
CROSS SECTIONS
DIBARYONS
HELIUM 3 TARGET
HIGGS BOSONS
KAON MINUS REACTIONS
KAONS PLUS
LIFETIME
NEUTRONS
PARTICLE PRODUCTION
STRANGENESS