Accès ouvert
2026
article
OpenAlex
Zhenglong Lu, Jiali Liu, Xin Zhao, Yanchao Chai et autres
Abstract The relaxation rate is a fundamental parameter that characterizes the dynamics of atomic ensembles and plays a critical role in the performance of atomic magnetometers. In this study, a transient dynamics model for the NMOR magnetometer is developed based on multipole …
cn
(code pays fourni par la source)
Accès ouvert
2014
article
OpenAlex
M. N. Achasov, X. C. Ai, O. Albayrak, M. Albrecht et autres
Using $1.06\ifmmode\times\else\texttimes\fi{}1{0}^{8}$ $\ensuremath{\psi}(3686)$ events recorded in ${e}^{+}{e}^{\ensuremath{-}}$ collisions at $\sqrt{s}=3.686\text{ }\mathrm{GeV}$ with the BESIII at the BEPCII collider, we present searches for $C$-parity violation in $J/\ensuremath{\psi}\ensuremath{\rightarrow}\ensuremath{\gamma}\ensuremath{\gamma}$ and $\ensuremath{\gamma}\ensuremath{\phi}$ decays via $\ensuremath{\psi}(3686)\ensuremath{\rightarrow}J/\ensuremath{\psi}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$. No significant signals are observed in either channel. Upper limits on …
cn, ru, us, de, it, pk, nl, tr
(code pays fourni par la source)
Accès ouvert
2014
article
OpenAlex
M. N. Achasov, X. C. Ai, O. Albayrak, M. Albrecht et autres
Using $2.25\ifmmode\times\else\texttimes\fi{}1{0}^{8}J/\ensuremath{\psi}$ events collected with the BESIII detector at the BEPCII storage rings, we observe for the first time the process $J/\ensuremath{\psi}\ensuremath{\rightarrow}p\overline{p}{a}_{0}(980)$, ${a}_{0}(980)\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}\ensuremath{\eta}$ with a significance of $6.5\ensuremath{\sigma}$ ($3.2\ensuremath{\sigma}$ including systematic uncertainties). The product branching fraction of $J/\ensuremath{\psi}\ensuremath{\rightarrow}p\overline{p}{a}_{0}(980)\ensuremath{\rightarrow}p\overline{p}{\ensuremath{\pi}}^{0}\ensuremath{\eta}$ is measured to be …
cn, ru, us, de, it, nl, tr
(code pays fourni par la source)