Search for {psi}(2S){yields}{eta}{sub c}{pi}{sup +}{pi}{sup -}{pi}{sup 0}
- Luther College, Decorah, Iowa 52101 (United States)
- University of Minnesota, Minneapolis, Minnesota 55455 (United States)
- Northwestern University, Evanston, Illinois 60208 (United States)
- State University of New York at Albany, Albany, New York 12222 (United States)
- University of Oklahoma, Norman, Oklahoma 73019 (United States)
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (United States)
Using 5.63 pb{sup -1} of data accumulated at the {psi}(2S) resonance with the CLEO III and CLEO-c detectors corresponding to 3.08x10{sup 6} {psi}(2S) decays, a search is performed for the decay {psi}(2S){yields}{eta}{sub c}{pi}{sup +}{pi}{sup -}{pi}{sup 0} to test a theoretical prediction based upon the assumption that the cc pair in the {psi}(2S) does not annihilate directly into three gluons but rather survives before annihilating. No signal is observed, and a combined upper limit from six {eta}{sub c} decay modes is determined to be B({psi}(2S){yields}{eta}{sub c}{pi}{sup +}{pi}{sup -}{pi}{sup 0}){<=}1.0x10{sup -3} at 90% C.L. This upper limit is about an order of magnitude below the theoretical expectation.
- OSTI ID:
- 20933189
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 75, Issue 1; Other Information: DOI: 10.1103/PhysRevD.75.011102; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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