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APS » Journals » Phys. Rev. D » Volume 25 » Issue 7
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Phys. Rev. D 25, 1786–1802 (1982)

Amplitude analysis of the KS0KS0 system produced in the reaction π-p→KS0KS0n at 23 GeV/c

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A. Etkin, K. J. Foley, R. S. Longacre, W. A. Love, T. W. Morris, S. Ozaki*, E. D. Platner, V. A. Polychronakos, A. C. Saulys, Y. Teramato†, C. D. Wheeler, and E. H. Willen
Brookhaven National Laboratory, Upton, New York 11973

K. -W. Lai
Brookhaven National Laboratory, Upton, New York 11973 and University of Arizona, Tucson, Arizona 85721

S. J. Lindenbaum
Brookhaven National Laboratory, Upton, New York 11973 and City College of New York, New York, New York 10031

M. A. Kramer and U. Mallik‡
City College of New York, New York, New York 10031

W. A. Mann and R. Merenyi
Tufts University, Medford, Massachusetts 02155

J. Marraffino, C. E. Roos, and M. S. Webster
Vanderbilt University, Nashville, Tennessee 37235

Received 28 August 1981; revised 6 November 1981; published in the issue dated 1 April 1982

We have carried out an amplitude analysis of the KS0KS0 system produced in the reaction π-p→KS0KS0n at 23 GeV/c, based on about 15 000 events in the low-t region (|t-tmin|<0.1 GeV2). Below 1.6 GeV/c2, our favored solution is very similar to those from previous analyses. For higher masses, we observe the KS0KS0 decay of the h(2040) meson. In addition, the l=0 partial wave contains a new state, strongly coupled to KS0KS0, with parameters M=1.771-0.053+0.077 GeV/c2 and Γ=0.200-0.009+0.156 GeV/c2. Since this state is most probably I=0, we call it the S*′(1770). We find an f′/f production ratio of 0.23-0.13+0.14, and branching ratios for f-meson and h(2040)-meson decays into KK̅ of (3.1-1.7+0.7)% and (0.67-0.15+0.41)%, respectively. We find, in a detailed comparison of our results with those from other experiments, that our solution is compatible with all known features of both charged and neutral KK̅ systems.

© 1982 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.25.1786
DOI:
10.1103/PhysRevD.25.1786
PACS:

*Present address: National Laboratory for High Energy Physics, KEK, Tsukuba, 305 Japan.

†Now at City College of New York, New York, New York 10031.

‡Now at Laboratoire de l'Accelerateur Lineaire, F-91405 Orsay, France.

 
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