D{sub s1}*(2710) and {sub D{sub s{sub j}}}*(2860) in the U-tilde(12)xO(3,1)-scheme

Journal Article · Thu Aug 05 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3483359· OSTI ID:21426421

Maeda, Tomohito; Yamada, Kenji ^[1]; Oda, Masuho ^[2]; Ishida, Shin ^[3]

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1. Department of Engineering Science, Junior College Funabashi Campus, Nihon University, Funabashi 274-8501 (Japan)
2. School of Science and Engineering, Kokushikan University, Tokyo 154-8515 (Japan)
3. Research Institute of Science and Technology, College of Science and Technology, Nihon University, Tokyo 101-8308 (Japan)

In order to classify the charmed-strange mesons, including puzzling D{sub s0}*(2317) and D{sub s1}(2460), and recently observed D{sub s1}*(2710) ans D{sub sj}*(2860), we employ the U-tilde(12)xO(3,1) level-classification scheme of hadrons proposed and developed by us in recent years. The scheme has a new degree of freedom, SU(2){sub {rho}}, which leads to a number of extra states out of conventional SU(6)-scheme, named chiralons. Applying this novel classification scheme, we investigate the strong decays of S- and P-wave cs-bar mesons with one pseudoscalar emission by using the covariant oscillator quark model. As a result it is shown that D{sub s0}*(2317) and D{sub s1}(2460) are described as {sup 1}S{sub 0}{sup {chi}}and {sup 3}S{sub 1}{sup {chi}}chiralons, forming the SU(2){sub {rho}}doublet with the ground-state D{sub s} and D{sub s}*, respectively. Furthermore, the observed decay properties of D{sub s1}*(2710) is consistently explained as the vector chiralon {sup 1}P{sub 1}{sup {chi}}. On the other hand, it is also found that the controversial narrow state, D{sub sj}*(2860), does not fit as predicted properties of our P-wave vector chiralon.

• OSTI ID: 21426421
• Journal Information: AIP Conference Proceedings, Vol. 1257, Issue 1; Conference: HADRON 2009: 13. international conference on hadron spectroscopy, Tallahassee, FL (United States), 29 Nov - 4 Dec 2009; Other Information: DOI: 10.1063/1.3483359; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
D S MESONS
DEGREES OF FREEDOM
OSCILLATORS
P WAVES
PARTICLE DECAY
PIONS
QUANTUM CHROMODYNAMICS
QUARK MODEL
S WAVES
STRONG INTERACTIONS
SU-2 GROUPS
SU-6 GROUPS
BASIC INTERACTIONS
BOSONS
CHARM PARTICLES
CHARMED MESONS
COMPOSITE MODELS
DECAY
ELECTRONIC EQUIPMENT
ELEMENTARY PARTICLES
EQUIPMENT
FIELD THEORIES
HADRONS
INTERACTIONS
LIE GROUPS
MATHEMATICAL MODELS
MESONS
PARTIAL WAVES
PARTICLE MODELS
PSEUDOSCALAR MESONS
QUANTUM FIELD THEORY
STRANGE MESONS
STRANGE PARTICLES
SU GROUPS
SYMMETRY
SYMMETRY GROUPS