Search for the H dibaryon in (K-,K+) reaction with scintillating fiber active target

Jung Keun Ahn, S. Aoki, K. S. Chung, M. S. Chung, H. En'yo, T. Fukuda, H. Funahashi, Y. Goto, A. Higashi, M. Ieiri, T. Iijima, M. Iinuma, K. Imai, Y. Itow, J. M. Lee, S. Makino, A. Masaike, Y. Matsuda, Y. Matsuyama, S. MiharaC. Nagoshi, I. Nomura, I. S. Park, N. Saito, M. Sekimoto, Y. M. Shin, K. S. Sim, R. Susukita, R. Takashima, F. Takeutchi, P. Tlustý, S. Weibe, S. Yokkaichi, K. Yoshida, M. Yoshida, T. Yoshida, S. Yamashita

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Abstract

We have studied (K-,K+) reactions at PK- = 1.66 GeV/c by using a newly developed active target made of plastic scintillating fibers. The H dibaryon (S = -2,I(Jπ) = 0(0+)) has been searched for through the direct process. K-+C→ K+ + H + X, by the analysis of the K+ momentum spectrum with the help of visual data of the scintillating fiber target. No evidence for the H production was observed. Upper limits for the differential cross section for the H production in the forward direction of the K+ is 0.04-0.6 μb/sr at the 90% confidence level for the H mass range from 1850 to 2215 MeV/c2.

Original languageEnglish
Pages (from-to)53-58
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume378
Issue number1-4
Publication statusPublished - 1996 Jun 20

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Ahn, J. K., Aoki, S., Chung, K. S., Chung, M. S., En'yo, H., Fukuda, T., Funahashi, H., Goto, Y., Higashi, A., Ieiri, M., Iijima, T., Iinuma, M., Imai, K., Itow, Y., Lee, J. M., Makino, S., Masaike, A., Matsuda, Y., Matsuyama, Y., ... Yamashita, S. (1996). Search for the H dibaryon in (K-,K+) reaction with scintillating fiber active target. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 378(1-4), 53-58.