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
2022
article
OpenAlex
Uwe Gebauer, C. Beleño, Ariane Frey, Ichiro Adachi et autres
The branching fractions of the decays ${B}^{+}\ensuremath{\rightarrow}\ensuremath{\eta}{\ensuremath{\ell}}^{+}{\ensuremath{\nu}}_{\ensuremath{\ell}}$ and ${B}^{+}\ensuremath{\rightarrow}{\ensuremath{\eta}}^{\ensuremath{'}}{\ensuremath{\ell}}^{+}{\ensuremath{\nu}}_{\ensuremath{\ell}}$ are measured, where $\ensuremath{\ell}$ is either an electron or a muon, using a data sample of $711\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ containing $772\ifmmode\times\else\texttimes\fi{}{10}^{6}B\overline{B}$ pairs collected at the $\mathrm{\ensuremath{\Upsilon}}(4S)$ resonance with the Belle detector at the …
de, jp, pl, sa, us, ru, in, cz, si, it, tw, kr, cn, au
(code pays fourni par la source)
Accès ouvert
2022
article
OpenAlex
Mikhail N. Achasov, P. Adlarson, S. Ahmed, M. Albrecht et autres
Based on electron-positron collision data collected with the BESIII detector operating at the Beijing Electron-Positron Collider II storage rings, the value of $R\ensuremath{\equiv}\ensuremath{\sigma}({e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}\text{hadrons})/\ensuremath{\sigma}({e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}})$ is measured at 14 center-of-mass energies from 2.2324 to 3.6710 GeV. The resulting uncertainties are less than 3.0% and …
cn, ru, se, de, it, mn, us, tr, gb
(code pays fourni par la source)
Accès ouvert
2021
article
OpenAlex
Sachi Nandan Mohanty, A. B. Kaliyar, V. Gaur, G. B. Mohanty et autres
We report the measurement of branching fractions and $CP$-violation asymmetries in $B\ensuremath{\rightarrow}\ensuremath{\phi}\ensuremath{\phi}K$ decays based on a $711\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ data sample containing $772\ifmmode\times\else\texttimes\fi{}{10}^{6}\text{ }\text{ }B\overline{B}$ events. The data were recorded at the $\mathrm{\ensuremath{\Upsilon}}(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy …
in, us, jp, pl, sa, ru, de, cz, si, it, tw, kr, cn, au
(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
(code pays fourni par la source)
Accès ouvert
2009
article
OpenAlex
T. Alexopoulos, Azmi Ali Altıntaṣ, M. G. Alviggi, Md Sadik Hassan Arik et autres
Detectors based on the bulk-Micromegas technology exhibit position resolution better than 100 μm at counting rates of up to several tens of kHz/cm 2 , along with trigger capabilities. These characteristics, combined with the detector's mechanical robustness and the possibility for cost-effective …
gr, tr, it, us, ru, cn, fr, ch
(code pays fourni par la source)
Accès ouvert
2004
article
OpenAlex
Joseph R. Adams, C. Adler, M. M. Aggarwal, Z Ahammed et autres
Transverse mass and rapidity distributions for charged pions, charged kaons, protons, and antiprotons are reported for square root of [sNN]=200 GeV pp and Au+Au collisions at Relativistic Heary Ion Collider (RHIC). Chemical and kinetic equilibrium model fits to our data reveal strong …
gb, de, in, us, nl, fr, ru, cn, cz
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