I. B. Nikolaev

activity

20142025

J / ψ \to γ η_{c}

decay rate and

η_{c}

parameters at KEDR

24 citations · 40 across the 4 of their papers we have counts for

collaborators

5 papers

hep-ex2025

Measurement of the hyperon weak radiative decay $Ξ^{0} \to γ Σ^{0}$ at BESIII

BESIII Collaboration, M. Ablikim, M. N. Achasov +615

The hyperon weak radiative decay $Ξ^{0} \to γ Σ^{0}$ is measured via the process $J / ψ \to Ξ^{0} Ξ ˉ^{0}$ . The absolute branching fraction of $Ξ^{0} \to γ Σ^{0}$ is determined to be $(3.69\pm 0.21_{\t…

hep-ex2025★ 3 cited

First Measurement of the Decay Dynamics in the Semileptonic Transition of the $D^{+ (0)}$ into the Axial-vector Meson $K ˉ_{1} (1270)$

BESIII Collaboration, M. Ablikim, M. N. Achasov +677

Using $e^{+} e^{-}$ data taken at the center-of-mass energy of 3.773 GeV with the BESIII detector, corresponding to an integrated luminosity of 20.3 fb $^{- 1}$ , we report the first measu…

hep-ex2024★ 5 cited

Observation of the charmonium decay $η_{c} \to γ γ$ in $J / ψ \to γ η_{c}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +662

Using $(2712.4 \pm 14.3) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector at the BEPCII collider, the decay $η_{c} \to γ γ$ in $J / ψ \to γ η_{c}$ is observed. We determine the p…

hep-ex2024★ 8 cited

Evidence for Two Excited $Ω^{-}$ Hyperons

BESIII Collaboration, M. Ablikim, M. N. Achasov +655

Using $e^{+} e^{-}$ collision data corresponding to an integrated luminosity of 19,fb $^{- 1}$ collected by the BESIII detector at center-of-mass energies ranging from 4.13 to 4.70,GeV, w…

hep-ex2014★ 24 cited

Measurement of $J / ψ \to γ η_{c}$ decay rate and $η_{c}$ parameters at KEDR

V. V. Anashin, V. M. Aulchenko, E. M. Baldin +78

Using the inclusive photon spectrum based on a data sample collected at the $J / ψ$ peak with the KEDR detector at the VEPP-4M $e^{+} e^{-}$ collider, we measured the rate of the radiativ…

Measurement of the hyperon weak radiative decay Ξ0→γΣ0 at BESIII

First Measurement of the Decay Dynamics in the Semileptonic Transition of the D+(0) into the Axial-vector Meson Kˉ1​(1270)

Observation of the charmonium decay ηc​→γγ in J/ψ→γηc​

Evidence for Two Excited Ω− Hyperons

Measurement of J/ψ→γηc​ decay rate and ηc​ parameters at KEDR

Measurement of the hyperon weak radiative decay $Ξ^{0} \to γ Σ^{0}$ at BESIII

First Measurement of the Decay Dynamics in the Semileptonic Transition of the $D^{+ (0)}$ into the Axial-vector Meson $K ˉ_{1} (1270)$

Observation of the charmonium decay $η_{c} \to γ γ$ in $J / ψ \to γ η_{c}$

Evidence for Two Excited $Ω^{-}$ Hyperons

Measurement of $J / ψ \to γ η_{c}$ decay rate and $η_{c}$ parameters at KEDR