Charmed scalar resonances-Conventional and four-quark mesons

Accession number;05A0202282
Title;Charmed scalar resonances-Conventional and four-quark mesons
Author; TERASAKI K (Kyoto Univ., Kyoto, Jpn) MCKELLAR B H J (Univ. Melbourne, Victoria, Aus)
Journal Title;YITP
Journal Code:L0911B
ISSN:
VOL.;NO.05-1;PAGE.4P(2005)
Figure&Table&Reference;REF.43
Pub. Country;Japan
Language;English
Abstract;The broad bumps with 240-280 MeV widths is investigated, which was observed in the D.PI. invariant mass distribution in the B.RAR.D.PI..PI. decay. It is argued that in the bumps there coexist two scalar mesons, the conventional 3P0{c anti-n} meson and a four-quark {cn}{anti-s anti-n} meson. This interpretation is based on the view that Ds0+(2317) meson consists of four quarks {cn}{anti-s anti-n}. The strange versions of these mesons are also discussed.