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Title

The puzzle of the D and D-s mesons

AuthorsVijande, Javier ; Fernández González, Francisco; Valcarce, A.
KeywordsStates
[PACS] Charmed mesons
[PACS] Other strange mesons
Issue Date22-Feb-2007
PublisherSocietà Italiana di Fisica
Springer
CitationEuropean Physical Journal A 31(4): 722-724 (2007)
AbstractWe present a theoretical framework that accounts for the new D-J and D-sJ mesons measured in the open-charm sector. These resonances are properly described if considered as a mixture of conventional P-wave quark-antiquark states and four-quark components. The narrowest states are basically P-wave quark-antiquark mesons, while the dominantly four-quark states are shifted above the corresponding two-meson threshold. We study the electromagnetic decay widths as basic tools to scrutiny their nature.
Description3 pages, 4 tables.-- PACS nrs.: 14.40.Lb, 14.40.Ev.-- ISI Article Identifier: 000245667300076
Printed version published Mar 2007.-- Contributed to: The IVth International Conference on Quarks and Nuclear Physics - QNP 2006 (Madrid, Spain, June 5-10, 2006).
Publisher version (URL)http://dx.doi.org/10.1140/epja/i2006-10199-0
URIhttp://hdl.handle.net/10261/9203
DOI10.1140/epja/i2006-10199-0
ISSN1434-6001
E-ISSN1434-601X
Appears in Collections:(IFIC) Artículos
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