Accès ouvert
2020
article
OpenAlex
J. P. Lees, V. Poireau, V. Tisserand, E. Graugés et autres
Many scenarios of physics beyond the standard model predict the existence of new gauge singlets, which might be substantially lighter than the weak scale. The experimental constraints on additional scalars with masses in the MeV to GeV range could be significantly weakened …
fr, es, it, no, us, de, ca, ru, in, gb
(code pays fourni par la source)
Accès ouvert
2017
article
OpenAlex
J. P. Lees, V. Poireau, V. Tisserand, E. Graugés et autres
We study the processes ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\gamma}}_{\mathrm{ISR}}J/\ensuremath{\psi}$, where $J/\ensuremath{\psi}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}$, $J/\ensuremath{\psi}\ensuremath{\rightarrow}{K}^{+}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}$, and $J/\ensuremath{\psi}\ensuremath{\rightarrow}{K}_{S}^{0}{K}^{\ifmmode\pm\else\textpm\fi{}}{\ensuremath{\pi}}^{\ensuremath{\mp}}$ using a data sample of $519\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ recorded with the BABAR detector operating at the SLAC PEP-II asymmetric-energy ${e}^{+}{e}^{\ensuremath{-}}$ collider at center-of-mass energies at and near the $\mathrm{\ensuremath{\Upsilon}}(nS)$ ($n=2,3,4$) resonances. We …
fr, es, it, no, us, de, ca, ru, in, sa, gb
(code pays fourni par la source)