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Study of psi(2S) Decays to gamma p bar{p}, pi^0 p bar{p} and eta p bar{p} and Search for p bar{p} Threshold Enhancements

Abstract:

The decays of psi(2S) into gamma p bar{p}, pi^0 p bar{p} and eta p bar{p} have been studied with the CLEO-c detector using a sample of 24.5 million psi(2S) events obtained from e^+e^- annihilations at sqrt{s} = 3686 MeV. The data show evidence for the excitation of several N^* resonances in p pi^0 and p eta channels in pi^0 p bar{p} and eta p bar{p} decays, and f_2 states in gamma p bar{p} decay. Branching fractions for decays of psi(2S) to gamma p bar{p}, pi^0 p bar{p} and eta p bar{p} have ...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevD.82.092002

Authors


Collaboration, CLEO More by this author
Alexander, JP More by this author
Cassel, DG More by this author
Ehrlich, R More by this author
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Journal:
Phys.Rev.D
Volume:
82
Issue:
9
Pages:
092002
Publication date:
2010-07-16
DOI:
EISSN:
1550-2368
ISSN:
1550-7998
URN:
uuid:95961035-b7cc-4835-b0c1-d22fbc1dcb5d
Source identifiers:
103669
Local pid:
pubs:103669
Language:
English
Keywords:

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