| Anticharmed pentaquark from B decays. | |
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MedLine Citation:
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PMID: 16605725 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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We explore the possibility of observing the anticharmed pentaquark state from the theta(c)npi(+) decay of B mesons produced in B-factory experiments. We first show that the observed branching ratio of the B(+) to lambda(-)(c)p pi(+), as well as its open histograms, can be remarkably well explained by assuming that the decay proceeds first through the pi(+) D(0) (or D(*0)) decay, and then through the subsequent decay of the virtual D(0) or D(*0) mesons to lambda(-)(c)p. We then note that the theta(c)can be similarly produced when the virtual D(0) or D(*0) decay into an antinucleon and a theta(c). Combining the present theoretical estimates for the ratio g(DNlambda(c))/g(DNtheta(c)) approximately 13 and g(D*Ntheta(c)) approximately 1/3g(DNtheta(c)), we find that the anticharmed pentaquark theta(c), which was predicted to be bound by several model calculations, can be produced via B(+)--> theta(c)npi(+), and be observed from the B-factory experiments through the weak decay of theta(c)--> pK(+) pi(-) pi(-). |
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Authors:
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Su Houng Lee; Youngshin Kwon; Youngjoon Kwon |
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Publication Detail:
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Type: Journal Article Date: 2006-03-15 |
Journal Detail:
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Title: Physical review letters Volume: 96 ISSN: 0031-9007 ISO Abbreviation: Phys. Rev. Lett. Publication Date: 2006 Mar |
Date Detail:
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Created Date: 2006-04-11 Completed Date: 2006-05-25 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401141 Medline TA: Phys Rev Lett Country: United States |
Other Details:
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Languages: eng Pagination: 102001 Citation Subset: - |
Affiliation:
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Institute of Physics and Applied Physics, Yonsei University, Seoul 120-749, Korea. suhoung@phya.yonsei.ac.kr |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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