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Observation of D_s1(2536)^+ → D^+π^-K^+ and angular decomposition of D_s1(2536)^+ →D^*+K_S^0 (2008)

Abstract
Using 462 fb^{-1} of e^+e^- annihilation data recorded by the Belle detector, we report the first observation of the decay D_s1(2536)^+ → D+π^-K^+. The ratio of branching fractions \frac{B(D_s1(2536)^+ → D^+π^- K^+}{B(D_s1(2536)^+ → D+K^0}is measured to be (3.27±0.18±0.37)%. We also study the angular distributions in the D_s1(2536)^+ →D*+K_S^0 decay and measure the ratio of D- and S-wave amplitudes. The S-wave dominates, with a partial width of Γ_S/Γtotal=0.72±0.05±0.01.. PHYSICAL REVIEW D. v.77, n.3, 2008, p.032001-1-032001-10

Publication details
Download http://dx.doi.org/10.1103/PhysRevD.77.032001
http://hdl.handle.net/2237/11346
Publisher American Physical Society
Repository AKF OAI-PMH Repository (Japan)
Keywords 000
Type 研究成果-論文以外
Language eng