Accès ouvert
2024
article
OpenAlex
Mikhail N. Achasov, P. Adlarson, X. C. Ai, R. Aliberti et autres
We perform for the first time an amplitude analysis of the decay D^{+}→K_{S}^{0}π^{+}η and report the observation of the decay D^{+}→K_{S}^{0}a_{0}(980)^{+} using 2.93 fb^{-1} of e^{+}e^{-} collision data taken at a center-of-mass energy of 3.773 GeV with the BESIII detector. As the …
cn, ru, se, de, it, pl, mn, us, tr, kr, gb
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Accès ouvert
2023
article
OpenAlex
Mikhail N. Achasov, P. Adlarson, M. Albrecht, R. Aliberti et autres
Using a sample of $4.3\ifmmode\times\else\texttimes\fi{}{10}^{5}$ ${\ensuremath{\eta}}^{\ensuremath{'}}\ensuremath{\rightarrow}\ensuremath{\eta}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}$ events selected from the ten billion $J/\ensuremath{\psi}$ event dataset collected with the BESIII detector, we study the decay ${\ensuremath{\eta}}^{\ensuremath{'}}\ensuremath{\rightarrow}\ensuremath{\eta}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}$ within the framework of nonrelativistic effective field theory. Evidence for a structure at ${\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ mass threshold is …
cn, ru, se, de, it, pl, mn, us, tr, gb
(code pays fourni par la source)
Accès ouvert
2020
article
OpenAlex
Mikhail N. Achasov, P. Adlarson, S. Ahmed, M. Albrecht et autres
Using $2.93\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of ${e}^{+}{e}^{\ensuremath{-}}$ collision data taken at a center-of-mass energy of 3.773 GeV with the BESIII detector, we report the first measurements of the absolute branching fractions of 14 hadronic ${D}^{0(+)}$ decays to exclusive final states with an $\ensuremath{\eta}$, …
cn, ru, se, de, it, in, mn, us, tr, gb
(code pays fourni par la source)
Accès ouvert
2012
article
OpenAlex
M. N. Achasov, Diego Alberto, D. Ambrose, F. F. An et autres
The mass and width of the lowest-lying $S$-wave spin singlet charmonium state, the ${\ensuremath{\eta}}_{c}$, are measured using a data sample of $1.06\ifmmode\times\else\texttimes\fi{}{10}^{8}$ $\ensuremath{\psi}(3686)$ decays collected with the BESIII detector at the BEPCII storage ring. We use a model that incorporates full interference …
cn
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