F. A. Emanov

New measurement of D0 and D+ meson masses with the KEDR detector

V. V. Anashin, O. V. Anchugov, A. V. Andrianov, K. V. Astrelina et autres

A bstract Using the 4.9 pb −1 statistics collected at the peak of the ψ (3770) resonance with the KEDR detector at the VEPP-4M electron-positron collider, we measured the masses of the neutral and charged D mesons: $$\begin{array}{c}{M}_{{D}^{0}}=1865.100\pm {0.210}_{\text{stat}}\pm {0.046}_{\text{syst}}\;{\text{M}}{\text{e}}{\text{V}},\\ {M}_{{D}^{+}}=1869.560\pm {0.288}_{\text{stat}}\pm …

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The branching fraction measurements of $J/ψ$ decay into $ρη$ and $ϕη$ final states

KEDR Collaboration, В.В. Анашин, O. V. Anchugov, K. V. Astrelina et autres

We present measurements of the branching fractions for the $J/ψ$ meson decays into the $ρη$ and $ϕη$ final states, based on data collected with the KEDR detector at the VEPP-4M collider. The data set consisted of 4.93 million $J/ψ$ events. The resulting …

New measurement of D0 and D+ meson masses with the KEDR detector

KEDR Collaboration, В.В. Анашин, О. В. Анчугов, Alexey V. Andrianov et autres

Using the 4.9 pb$^{-1}$ statistics collected at the peak of the $ψ(3770)$ resonance with the KEDR detector at the VEPP-4M electron-positron collider, we measured the masses of the neutral and charged D mesons: $M_{D^0} = 1865.100 \pm 0.210 (stat) \pm 0.046 (syst) …

Measurement of the Masses of Neutral and Charged D Mesons with the KEDR Detector

V. V. Anashin, О. В. Анчугов, Alexey V. Andrianov, K. V. Astrelina et autres

A preliminary result of measuring the masses of the neutral and charged $$D$$ mesons in the KEDR/VEPP-4M experiment (Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk) is presented: $${{M}_{{{{D}^{0}}}}} = 1865.100 \pm $$ $${{0.210}_{{{\text{stat}}}}} \pm {{0.039}_{{{\text{syst}}}}}{\kern 1pt} \;{\text{MeV}},{\kern …

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Measurement of R at the KEDR Detector

В.В. Анашин, O. V. Anchugov, K. V. Astrelina, V. Aulchenko et autres

The paper is focused on the precise measurements of the total cross section for $${{e}^{ + }}{{e}^{ - }}$$ annihilation into hadronic final states at the VEPP-4M collider in Novosibirsk. The KEDR collaboration has published the R values on 22 points in …

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Measurement of the branching fraction of J/ψ → ρπ at KEDR

V. V. Anashin, O. V. Anchugov, Alexey V. Andrianov, K. V. Astrelina et autres

Abstract We present the study of the decay J/ψ → ρπ. The results are based on of 5.2 million J/ψ events collected by the KEDR detector at the VEPP-4M collider. The branching fractions are measured to be $$ \mathcal{B} $$ B (J/ψ …

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Measurement of the branching fraction of $J/ψ\rightarrowρπ$ at KEDR

V. V. Anashin, O. V. Anchugov, Alexey V. Andrianov, K. V. Astrelina et autres

We present the study of the decay $J/ψ\rightarrow ρπ$. The results are based on of 5.2~million $J/ψ$ events collected by the KEDR detector at the VEPP-4M collider. The branching fractions are measured to be $\B(J/ψ\rightarrow ρπ) = \big(2.072\pm 0.017 \pm 0.062 \big)\cdot …

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