Accès ouvert
2025
article
OpenAlex
M. Ablikim, М. Н. Ачасов, P. Adlarson, X. Ai et autres
A bstract Using 20.3 fb − 1 of e + e − collision data collected at a center-of-mass energy of 3.773 GeV with the BESIII detector, we present the measurements of the absolute branching fractions of the doubly Cabibbo-suppressed decays D + …
cn, ru, se, de, it, pl, mn, us, tr, kr, gb
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Accès ouvert
2025
article
OpenAlex
M. Ablikim, M. N. Achasov, P. Adlarson, X. C. Ai et autres
We report a study of the semileptonic decays D^{+}→K_{S}^{0}π^{0}ℓ^{+}ν_{ℓ} (ℓ=e, μ) based on 20.3 fb^{-1} of e^{+}e^{-} collision data collected at the center-of-mass energy of 3.773 GeV with the BESIII detector. The D^{+}→K_{S}^{0}π^{0}μ^{+}ν_{μ} decay is observed for the first time, with a …
cn, ru, se, de, it, pl, mn, us, tr, kr, gb
(code pays fourni par la source)
Accès ouvert
2025
article
OpenAlex
M. Ablikim, M. N. Achasov, P. Adlarson, O. Afedulidis et autres
A bstract Using e + e − collision data at 13 center-of-mass energies ranging from 4.600 to 4.951 GeV collected with the BESIII detector, we conduct the first search for the e + e − → $$ {K}_S^0{K}_S^0{h}_c $$ K S 0 …
ru, se, de, cn, it, pl, us, tr, kr
(code pays fourni par la source)
Accès ouvert
2024
article
OpenAlex
M. Ablikim, M. N. Achasov, P. Adlarson, M. Albrecht et autres
Abstract One of the fundamental goals of particle physics is to gain a microscopic understanding of the strong interaction. Electromagnetic form factors quantify the structure of hadrons in terms of charge and magnetization distributions. While the nucleon structure has been investigated extensively, …
cn, ru, se, de, it, pl, mn, us, tr, gb
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Accès ouvert
2024
article
OpenAlex
M. N. Achasov, P. Adlarson, O. Afedulidis, X. Ai et autres
The process e + e − → p p ¯ π 0 is studied at 20 center-of-mass energies ranging from 2.1000 to 3.0800 GeV using 636.8 pb − 1 of data collected with the BESIII detector operating at the BEPCII collider. The …
ru, se, de, cn, it, pl, us, kr
(code pays fourni par la source)
Accès ouvert
2022
article
OpenAlex
M. N. Achasov, P. Adlarson, M. Albrecht, R. Aliberti et autres
The radiative hyperon decay $\mathrm{\ensuremath{\Lambda}}\ensuremath{\rightarrow}n\ensuremath{\gamma}$ is studied using $(10087\ifmmode\pm\else\textpm\fi{}44)\ifmmode\times\else\texttimes\fi{}{10}^{6}\text{ }\text{ }J/\ensuremath{\psi}$ events collected with the BESIII detector operating at BEPCII. The absolute branching fraction of the decay $\mathrm{\ensuremath{\Lambda}}\ensuremath{\rightarrow}n\ensuremath{\gamma}$ is determined to be $(0.832\ifmmode\pm\else\textpm\fi{}0.03{8}_{\mathrm{stat}}\ifmmode\pm\else\textpm\fi{}0.05{4}_{\mathrm{syst}})\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}3}$, which is a factor of 2.1 lower and 5.6 …
cn, ru, se, de, it, pl, mn, us, tr, gb
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Accès ouvert
2022
article
OpenAlex
М. Н. Ачасов, P. Adlarson, M. Albrecht, R. Aliberti et autres
A search for a massless dark photon ${\ensuremath{\gamma}}^{\ensuremath{'}}$ is conducted using $4.5\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of ${e}^{+}{e}^{\ensuremath{-}}$ collision data collected at center-of-mass energies between 4.600 and 4.699 GeV with the BESIII detector at BEPCII. No significant signal is observed, and the upper limit …
cn, ru, se, de, it, pl, mn, us, tr, gb
(code pays fourni par la source)
Accès ouvert
2022
article
OpenAlex
M. Ablikim, M. N. Achasov, P. Adlarson, M. Albrecht et autres
Abstract Using events collected with the BESIII detector, we perform the first search for the weak baryonic decay . The analysis procedure is optimized using a blinded method. No significant signal is observed, and the upper limit on the branching fraction ( …
cn, ru, se, de, it, pl, mn, us, tr, gb
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