Phys. Rev. Lett.
78,
3646–3649
(1997)
Search for the H-Dibaryon in 3He(K-,K+)Hn
R. W. Stotzer et al. (The BNL E836 Collaboration)
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R. W. Stotzer10, T. Bürger4, P. D. Barnes8, B. Bassalleck10, A. R. Berdoz3, M. Burger4, R. E. Chrien2, C. A. Davis9,11, G. E. Diebold13, H. En'yo6, H. Fischer10, G. B. Franklin3, J. Franz4, L. Gan9, D. R. Gill11, T. Iijima6, K. Imai6, P. Koran3, M. Landry9, L. Lee9, J. Lowe1,10, R. Magahiz3, A. Masaike6, R. McCrady3, F. Merrill3, C. A. Meyer3, J. M. Nelson1, K. Okada7, S. A. Page9, P. H. Pile2, B. P. Quinn3, W. D. Ramsay9, E. Rössle4, A. Rusek10, R. Sawafta2, H. Schmitt4, R. A. Schumacher3, R. L. Stearns12, I. R. Sukaton3, R. Sutter2, J. J. Szymanski5, F. Takeutchi7, W. T. H. van Oers9, D. M. Wolfe10, K. Yamamoto6, M. Yosoi6, V. J. Zeps3, and R. Zybert1 (The BNL E836 Collaboration)
1Department of Physics, University of Birmingham, Birmingham B15 2TT, United Kingdom 2Brookhaven National Laboratory, Upton, Long Island, New York 11973 3Department of Physics, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 4Fakultät für Physik, University of Freiburg, D-79104 Freiburg, Germany 5Indiana University Cyclotron Facility, Bloomington, Indiana 47405 6Department of Physics, Kyoto University, Sakyo-Ku, Kyoto 606, Japan 7Faculty of Science, Kyoto Sangyo University, Kyoto 603, Japan 8Los Alamos National Laboratory, Los Alamos, New Mexico 87545 9Department of Physics, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada 10Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87131 11TRIUMF, Vancouver, British Columbia V6T 2A3, Canada 12Department of Physics and Astronomy, Vassar College, Poughkeepsie, New York 12601 13Physics Department, Yale University, New Haven, Connecticut 06511
Received 2 January 1997; published in the issue dated 12 May 1997
A high-sensitivity search for the strangeness S = -2 H dibaryon (uuddss) was conducted at the Brookhaven Alternating Gradient Synchrotron (AGS) using the reaction 3He(K-,K+)Hn at PK- = 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/c2 below the ΛΛ threshold of 2.231GeV/c2, the resulting upper limits on the H-production cross section are in the range of 0.058 to 0.021μb/sr, approximately 1 order of magnitude below a theoretical calculation.
© 1997 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.78.3646
DOI:
10.1103/PhysRevLett.78.3646
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