Accès ouvert
2022
article
OpenAlex
X. L. Wang, B. S. Gao, W. J. Zhu, I. Adachi et autres
Using $980\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of data at and around the $\mathrm{\ensuremath{\Upsilon}}(nS)$ ($n=1$, 2, 3, 4, 5) resonances collected with the Belle detector at the KEKB asymmetric-energy ${e}^{+}{e}^{\ensuremath{-}}$ collider, the two-photon process $\ensuremath{\gamma}\ensuremath{\gamma}\ensuremath{\rightarrow}\ensuremath{\gamma}\ensuremath{\psi}(2S)$ is studied from the threshold to 4.2 GeV for the …
cn, jp, kr, de, es, us, no, sa, ru, in, cz, si, pl, it, tw, au
(code pays fourni par la source)
Accès ouvert
2022
article
OpenAlex
B. Wang, K. Kinoshita, H. Aihara, D. M. Asner et autres
We report the first direct measurement of the inclusive branching fraction $\mathcal{B}({B}_{s}\ensuremath{\rightarrow}{D}_{s}X)$ via ${B}_{s}$ tagging in ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}\mathrm{\ensuremath{\Upsilon}}(5\mathrm{S})$ events. Tagging is accomplished through a partial reconstruction of semileptonic decays ${B}_{s}\ensuremath{\rightarrow}{D}_{s}X\ensuremath{\ell}\ensuremath{\nu}$, where $X$ denotes unreconstructed additional hadrons or photons and $\ensuremath{\ell}$ is an electron …
de, us, jp, ru, sa, au, in, cz, si, pl, it, tw, kr, fr, cn
(code pays fourni par la source)
Accès ouvert
2021
preprint
OpenAlex
Belle Collaboration, T. V. Dong, T. Luo, I. Adachi et autres
This letter presents a search for the rare flavor-changing neutral current process $B^{0}\rightarrow K^{\ast 0}τ^{+}τ^{-}$ using data taken with the Belle detector at the KEKB asymmetric energy $e^{+}e^{-}$ collider. The analysis is based on the entire $Υ(4S)$ resonance data sample of 711 …
no
(code pays fourni par la source)