Observation of and search for in B decays
May, 2011Citations per year
Abstract: (arXiv)
We report a study of and decay modes using events collected at the \Upsilon(4S)e^+ e^-X(3872) \to J/\psi \gamma\chi_{c2} \to J/\psi \gammaB\to (X_{c\bar{c}}\gamma) KX(3872) \to \psi' \gamma\mathcal{B}(B^{\pm} \to X(3872) K^{\pm}) \mathcal{B}(X(3872) \to J/\psi\gamma)=(1.78^{+0.48}_{-0.44}\pm 0.12)\times 10^{-6}\mathcal{B} (B^{\pm} \to\chi_{c2} K^{\pm})$$=$ $(1.11^{+0.36}_{-0.34} \pm 0.09) \times 10^{-5}$, $\mathcal{B}(B^{\pm} \to X(3872) K^{\pm}) \mathcal{B}(X(3872) \to \psi'\gamma)$ $<$ $3.45\times 10^{-6}$ (upper limit at 90% C.L.) and also provide upper limits for other searches.Note:
- 6 pages, 3 figures
- 13.20.He
- 13.20.Gd
- 14.40.Nd
- B: cascade decay
- X(3872): radiative decay
- BELLE
- KEK-B
- electron positron: annihilation
- B: pair production
- chi/c2(3555): radiative decay
References(29)
Figures(3)