Accès ouvert
2012
article
OpenAlex
J. P. Lees, V. Poireau, E. Prencipe, V. Tisserand et autres
We study the processes ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}{K}^{+}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}\ensuremath{\gamma}$, ${K}^{+}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}\ensuremath{\gamma}$, and ${K}^{+}{K}^{\ensuremath{-}}{K}^{+}{K}^{\ensuremath{-}}\ensuremath{\gamma}$, where the photon is radiated from the initial state. About 84 000, 8000, and 4200 fully reconstructed events, respectively, are selected from $454\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of BABAR data. The invariant mass of the hadronic …
fr, es, it, no, us, de, ca, gb, ru
(code pays fourni par la source)
Accès ouvert
2012
article
OpenAlex
J. P. Lees, V. Poireau, V. Tisserand, J. Garra Ticó et autres
We present branching fraction measurements for the decays ${B}^{0}\ensuremath{\rightarrow}{\ensuremath{\rho}}^{0}{K}^{*0}$, ${B}^{0}\ensuremath{\rightarrow}{f}_{0}{K}^{*0}$, and ${B}^{0}\ensuremath{\rightarrow}{\ensuremath{\rho}}^{\ensuremath{-}}{K}^{*+}$, where ${K}^{*}$ is an $S$-wave $(K\ensuremath{\pi}{)}_{0}^{*}$ or a ${K}^{*}(892)$ meson; we also measure ${B}^{0}\ensuremath{\rightarrow}{f}_{0}{K}_{2}^{*}(1430{)}^{0}$. For the ${K}^{*}(892)$ channels, we report measurements of longitudinal polarization fractions (for $\ensuremath{\rho}$ final states) and …
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(code pays fourni par la source)
Accès ouvert
2011
article
OpenAlex
J. P. Lees, V. Poireau, V. Tisserand, J. Garra Ticó et autres
We report the observation of the baryonic $B$ decay ${\overline{B}}^{0}\ensuremath{\rightarrow}{\ensuremath{\Lambda}}_{c}^{+}\overline{\ensuremath{\Lambda}}{K}^{\ensuremath{-}}$ with a significance larger than 7 standard deviations based on $471\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $B\overline{B}$ pairs collected with the BABAR detector at the PEP-II storage ring at SLAC. We measure the branching fraction for the …
fr, es, it, no, us, de, ca, gb, ru
(code pays fourni par la source)
Accès ouvert
2011
article
OpenAlex
P. del Amo Sanchez, J. P. Lees, V. Poireau, E. Prencipe et autres
Searches for $B$ mesons decaying to final states containing a baryon and a lepton are performed, where the baryon is either ${\ensuremath{\Lambda}}_{c}$ or $\ensuremath{\Lambda}$ and the lepton is a muon or an electron. These decays violate both baryon and lepton number and …
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(code pays fourni par la source)
Accès ouvert
2011
article
OpenAlex
J. P. Lees, V. Poireau, E. Prencipe, V. Tisserand et autres
The decay width and mass of the ${D}_{s1}(2536{)}^{+}$ meson are measured via the decay channel ${D}_{s1}^{+}\ensuremath{\rightarrow}{D}^{*+}{K}_{S}^{0}$ using $385\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of data recorded with the BABAR detector in the vicinity of the $\ensuremath{\Upsilon}(4S)$ resonance at the PEP-II asymmetric-energy electron-positron collider. The result …
fr, es, it, no, us
(code pays fourni par la source)
Accès ouvert
2011
article
OpenAlex
P. del Amo Sanchez, J. P. Lees, V. Poireau, E. Prencipe et autres
Using $347.5\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of data recorded by the BABAR detector at the PEP-II electron-positron collider, $244\ifmmode\times\else\texttimes\fi{}{10}^{3}$ signal events for the ${D}^{+}\ensuremath{\rightarrow}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{e}^{+}{\ensuremath{\nu}}_{e}$ decay channel are analyzed. This decay mode is dominated by the ${\overline{K}}^{*}(892{)}^{0}$ contribution. We determine the ${\overline{K}}^{*}(892{)}^{0}$ parameters: ${m}_{{K}^{*}(892{)}^{0}}=(895.4\ifmmode\pm\else\textpm\fi{}0.2\ifmmode\pm\else\textpm\fi{}0.2)\text{ }\text{ …
fr, es, it, no, us, de, ca, gb, ru
(code pays fourni par la source)
Accès ouvert
2011
article
OpenAlex
P. del Amo Sanchez, J. P. Lees, V. Poireau, E. Prencipe et autres
We present measurements of partial branching fractions of $B\ensuremath{\rightarrow}{K}^{+}X$, $B\ensuremath{\rightarrow}{K}^{0}X$, and $B\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}X$, where $X$ denotes any accessible final state above the endpoint for $B$ decays to charmed mesons, specifically for momenta of the candidate hadron greater than 2.34 (2.36) GeV for kaons …
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