Search for an η bound state in pion double charge exchange on O18

J. D. Johnson, G. R. Burleson, C. Edwards, M. El-Ghossain, M. A. Espy, R. Garnett, A. Hussein, K. Johnson, C. F. Moore, C. L. Morris, J. M. O’Donnell, M. Palarczyk, M. Rawool-Sullivan, H. Ward, D. Watson, C. Whitley, and A. L. Williams
Phys. Rev. C 47, 2571 – Published 1 June 1993
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Abstract

The search for an η bound state in the double charge exchange (DCX) reaction O18(π+,π)18Ne(DIAS) has been carried out at LAMPF using the P3 channel and the LAS spectrometer. An excitation function for this reaction was measured for energies ranging from 350 to 440 MeV and for momentum transfers of 0, 105, and 210 MeV/c. The measured cross sections tend to agree with previous results for DCX on O18. The measured excitation function shows some evidence for structure near the η production threshold.

  • Received 11 November 1992

DOI:https://doi.org/10.1103/PhysRevC.47.2571

©1993 American Physical Society

Authors & Affiliations

J. D. Johnson, G. R. Burleson, C. Edwards, M. El-Ghossain, M. A. Espy, R. Garnett, A. Hussein, K. Johnson, C. F. Moore, C. L. Morris, J. M. O’Donnell, M. Palarczyk, M. Rawool-Sullivan, H. Ward, D. Watson, C. Whitley, and A. L. Williams

  • The University of Texas at Austin, Austin, Texas 78712
  • King Fahd University of Petroleum and Minerals, Dhahran 31261 Saudi Arabia
  • Los Alamos National Laboratory, Los Alamos, New Mexico 87545
  • New Mexico State University, Las Cruces, New Mexico 88003
  • University of Minnesota, Minneapolis, Minnesota 55455
  • University of Pennsylvania, Philadelphia, Pennsylvania 19104
  • University of York, York Y01-5DD, United Kingdom

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Vol. 47, Iss. 6 — June 1993

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