Coupled-Channel Model for .PSI. and .UPSILON.. A one-open-channel analysis.
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Accession number;99A0881161
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| Title;Coupled-Channel Model for .PSI. and .UPSILON.. A one-open-channel analysis. |
| Author;
HIRANO M
(Hokkaido Univ. Education, Sapporo Campus, Sapporo)
YABUSAKI N
(Hokkaido Univ., Sapporo)
KATO K
(Hokkaido Univ., Sapporo)
MATSUDA Y
(Hokkaido Automotive Engin, Coll., Sapporo)
SAKAI M
(Hokkaido Univ. Education, Kushiro Campus, Kushiro)
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Journal Title;Journal of Hokkaido University of Education. Natural Science
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Journal Code:L3615A
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ISSN:1344-2570
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VOL.50;NO.1;PAGE.9-24(1999)
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| Figure&Table&Reference;FIG.7, TBL.3, REF.16 |
| Pub. Country;Japan |
| Language;English |
| Abstract;Charmonium(cc) and Bottomonium(bb) are coupled with charmed- and bottomed-meson decaying states, respectively, through the pair creation processes of light quarks. The transition potential is derived from an effective QCD hamiltonian. In the final (decaying channel) state, we assume a phenomenological short-range repulsive final state interaction between meson and antimeson. The masses and decay widths of the S-wave states of .PSI. and .UPSILON. are obtained by solving the coupled-channel equation. The final state interaction together with the transition potential works well in reproducing the masses and decay widths of states above open channel thresholds. (author abst.) |
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