Accès ouvert
2012
article
OpenAlex
J. P. Lees, V. Poireau, V. Tisserand, J. Garra Ticó et autres
We report a study of the process $\ensuremath{\gamma}\ensuremath{\gamma}\ensuremath{\rightarrow}X\ensuremath{\rightarrow}{\ensuremath{\eta}}_{c}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$, where $X$ stands for one of the resonances ${\ensuremath{\chi}}_{c2}(1P)$, ${\ensuremath{\eta}}_{c}(2S)$, $X(3872)$, $X(3915)$, or ${\ensuremath{\chi}}_{c2}(2P)$. The analysis is performed with a data sample of $473.9\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ collected with the BABAR detector at the PEP-II …
fr, es, it, no, us, de, ca, gb, ru
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Accès ouvert
2011
article
OpenAlex
J. P. Lees, V. Poireau, E. Prencipe, V. Tisserand et autres
We present branching fraction and $CP$ asymmetry measurements as well as angular studies of $B\ensuremath{\rightarrow}\ensuremath{\phi}\ensuremath{\phi}K$ decays using $464\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $B\overline{B}$ events collected by the BABAR experiment. The branching fractions are measured in the $\ensuremath{\phi}\ensuremath{\phi}$ invariant mass range below the ${\ensuremath{\eta}}_{c}$ resonance (${m}_{\ensuremath{\phi}\ensuremath{\phi}}<2.85\text{ }\text{ …
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Accès ouvert
2009
article
OpenAlex
B. Aubert, Y. Karyotakis, J. P. Lees, V. Poireau et autres
We perform a time-dependent amplitude analysis of ${B}^{0}\ensuremath{\rightarrow}{K}_{S}^{0}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ decays to extract the $CP$ violation parameters of ${f}_{0}(980){K}_{S}^{0}$ and ${\ensuremath{\rho}}^{0}(770){K}_{S}^{0}$ and the direct $CP$ asymmetry of ${K}^{*+}(892){\ensuremath{\pi}}^{\ensuremath{-}}$. The results are obtained from a data sample of $(383\ifmmode\pm\else\textpm\fi{}3)\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $B\overline{B}$ decays, collected with the BABAR …
fr, es, it, no, us, gb, de, ca, ru
(code pays fourni par la source)
Accès ouvert
2009
article
OpenAlex
B. Aubert, Y. Karyotakis, J. P. Lees, V. Poireau et autres
We perform a study of the exclusive production of $D\overline{D}$, ${D}^{*}$$\overline{D}$, and ${D}^{*}{\overline{D}}^{*}$ in initial-state-radiation events, from ${e}^{+}{e}^{\ensuremath{-}}$ annihilations at a center-of-mass energy near 10.58 GeV, to search for charmonium and possible new resonances. The data sample corresponds to an integrated luminosity …
fr, es, it, no, us, gb, de, ca, ru
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