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Study of $$D^{**}$$ production and light hadronic states in the $$B^0 to D^{*+} omega pi^-$$ decay

$$B^0 to D^{*+} omega pi^-$$崩壊における$$D^{**}$$生成と軽いハドロンの研究

Matvienko, D.*; 谷田 聖   ; Belle Collaboration*; 他163名*

Matvienko, D.*; Tanida, Kiyoshi; Belle Collaboration*; 163 of others*

We report on the first observations of $$bar{B}^0 to D_1(2430)^0 omega$$, $$bar{B}^0 to D_1(2420)^0 omega$$, and $$bar{B}^0 to D_2^*(2460)^0 omega$$ decays. The $$bar{B}^0 to D^{*+}rho(1450)^-$$ decay is also observed. The branching fraction measurements are based on $$(771.6 pm 10.6) times 10^6$$ $$Bbar{B}$$ events collected at the $$Upsilon(4S)$$ resonance with the Belle detector at the KEKB asymmetric-energy $$e^+e^-$$ collider. The fractions of longitudinal polarization of the $$D^{**}$$ states as well as partial wave fractions of the $$D_1(2430)^0$$ are obtained. We also set a 90% confidence level upper limit for the product of branching fractions of $${cal B}(bar{B}^0 to D^{*+}b_1(1235)^-) times {cal B}(b_1(1235)^- to omega pi^-)$$. The measurements show evidence of nontrivial final-state interaction phases for the $$rho$$-meson-like amplitudes.

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パーセンタイル:53.42

分野:Astronomy & Astrophysics

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