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H-dibaryon search with a scintillating fiber live target

Journal Article · · AIP Conference Proceedings
DOI:https://doi.org/10.1063/1.48523· OSTI ID:172201
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  1. Department of Physics, Korea University, Seoul 136-701 (Korea, Republic of)
  2. Faculty of Science, Kobe University, Rokko-dai, Kobe 657 (Japan)
  3. Department of Physics, University, Seoul 120-749 (Korea, Republic of)
  4. Faculty of Science, Kyoto University, Kitashirakawa-Oiwake, Kyoto 606 (Japan)
  5. Institute of Nuclear Study, University of Tokyo, Tanashi, Tokyo 188 (Japan)
  6. KEK, National Laboratory for High Energy Physics, Oho, Tsukuba 305 (Japan)
  7. Faculty of Science, Nagoya University, Nagoya (Japan)
  8. RIKEN, The Institute of Physical and Chemical Research, Wako 351-01 (Japan)
  9. Kyuhg-sun University (Korea, Republic of)
  10. Saskatchewan University, Saskatoon (Canada)
+ Show Author Affiliations
An experiment (E224) searching for the H-dibaryon has been performed at the KEK-PS K2 beam line in 1991{similar_to}1992. A new type of visual live target using plastic scintillating fibers has been developed for this experiment. We have been searching for the {ital H} produced by the direct process, {ital K}{sup {minus}}+C{r_arrow}{ital K}{sup +}+{ital H}+{ital X}, and also by an atomic capture of {Xi}{sup {minus}} in carbon atom in the target. More than 4500 ({ital K}{sup {minus}}, {ital K}{sup +}) events on {sup 12}{ital C} target have been detected in the quasi-free region, where we expect about 150 {Xi}{sup {minus}}`s are captured in carbon atom. So far, no positive candidate has been found. The upper limits of the {ital H} production through these processes are reported. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.
Sponsoring Organization:
USDOE
OSTI ID:
172201
Report Number(s):
CONF-940514--
Journal Information:
AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 338; ISSN 0094-243X; ISSN APCPCS
Country of Publication:
United States
Language:
English

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Related Subjects

66 PHYSICS
CARBON 12 TARGET
CHARGE-EXCHANGE REACTIONS
DIBARYONS
KAON MINUS REACTIONS
KAONS PLUS
XI MINUS PARTICLES