2015年7月23日
Study of D∗∗ production and light hadronic states in the B ¯ 0 →d∗+ωπ- decay
Physical Review D - Particles, Fields, Gravitation and Cosmology
- 巻
- 92
- 号
- 1
- DOI
- 10.1103/PhysRevD.92.012013
© 2015 American Physical Society. We report on the first observations of B¯0→D1(2430)0ω, B¯0→D1(2420)0ω, and B¯0→D2∗(2460)0ω decays. The B¯0→D∗+ρ(1450)- decay is also observed. The branching fraction measurements are based on (771.6±10.6)×106 BB¯ events collected at the (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 D1(2430)0 are obtained. We also set a 90% confidence level upper limit for the product of branching fractions of B(B¯0→D∗+b1(1235)-)×B(b1(1235)-→ωπ-). The measurements show evidence of nontrivial final-state interaction phases for the ρ-meson-like amplitudes.
- リンク情報
- ID情報
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- DOI : 10.1103/PhysRevD.92.012013
- ISSN : 1550-7998
- eISSN : 1550-2368
- SCOPUS ID : 84939131990