Accès ouvert
2019
article
OpenAlex
М. Н. Ачасов, S. Ahmed, M. Albrecht, M. Alekseev et autres
The decay ${D}^{+}\ensuremath{\rightarrow}{K}_{S}^{0}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ is studied with an amplitude analysis using a data set of $2.93\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of ${e}^{+}{e}^{\ensuremath{-}}$ collisions at the $\ensuremath{\psi}(3770)$ peak accumulated by the BESIII detector. Intermediate states and nonresonant components, and their relative fractions and phases, have been …
cn, ru, de, it, mn, us, tr
(code pays fourni par la source)
Accès ouvert
2019
article
OpenAlex
М. Н. Ачасов, P. Adlarson, S. Ahmed, M. Albrecht et autres
The Born cross section for the process ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}p\overline{p}$ is measured using the initial state radiation technique with an undetected photon. This analysis is based on datasets corresponding to an integrated luminosity of $7.5\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$, collected with the BESIII detector at the …
cn, ru, se, de, it, mn, us, tr, gb
(code pays fourni par la source)
Accès ouvert
2019
article
OpenAlex
М. Н. Ачасов, S. Ahmed, M. Albrecht, M. Alekseev et autres
The cross section of the process ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}{K}^{+}{K}^{\ensuremath{-}}$ is measured at a number of center-of-mass energies $\sqrt{s}$ from 2.00 to 3.08 GeV with the BESIII detector at the Beijing Electron Positron Collider (BEPCII). The results provide the best precision achieved so far. A …
cn, ru, de, it, mn, us, tr, nl
(code pays fourni par la source)
Accès ouvert
2019
article
OpenAlex
М. Н. Ачасов, S. Ahmed, X. C. Ai, O. Albayrak et autres
The state $Y(2175)$ is observed in the process ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}\ensuremath{\eta}Y(2175)$ with a statistical significance larger than 10 standard deviations using the data collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energies between 3.7 and 4.6 GeV. This is …
cn, de
(code pays fourni par la source)
Accès ouvert
2018
article
OpenAlex
М. Н. Ачасов, S. Ahmed, M. Albrecht, M. Alekseev et autres
Using an ${e}^{+}{e}^{\ensuremath{-}}$ collision data sample of $2.93\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ collected at a center-of-mass energy of 3.773 GeV by the BESIII detector at BEPCII, we report the observation of ${D}^{0}\ensuremath{\rightarrow}{a}_{0}(980{)}^{\ensuremath{-}}{e}^{+}{\ensuremath{\nu}}_{e}$ and evidence for ${D}^{+}\ensuremath{\rightarrow}{a}_{0}(980{)}^{0}{e}^{+}{\ensuremath{\nu}}_{e}$ with significances of $6.4\ensuremath{\sigma}$ and $2.9\ensuremath{\sigma}$, respectively. The …
cn, ru, de, it, mn, us, tr, nl
(code pays fourni par la source)