A. Calcaterra

collaborators

3 papers

hep-ex2024

Measurement of the Branching Fraction of \boldmath{ $ψ (2 S) \to γ π^{0}$ }

BESIII Collaboration, M. Ablikim, M. N. Achasov +650

Based on $(2712.4 \pm 14.1) \times 1 0^{6} ψ (2 S)$ events, 7.9 fb $^{- 1}$ $ψ (3773)$ data, and 0.8 fb $^{- 1}$ off-resonance data samples collected with the BESIII detector, we measure the b…

hep-ex2024

Measurement of the $e^{+} e^{-} \to K^{+} K^{-} ψ (2 S)$ Cross Section at Center-of-Mass Energies from 4.699 to 4.951 GeV and Search for $Z_{cs}^{\pm}$ in the $Z_{cs}^{\pm} \to K^{\pm} ψ (2 S)$ Decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +651

We perform the first investigation of the process $e^{+} e^{-} \to K^{+} K^{-} ψ (2 S)$ and report its Born cross sections over a range of center-of-mass energies from 4.699 to 4.951~GeV. Th…

hep-ex2024

Observation of $η_{c}$ (1S, 2S) and $χ_{c J}$ decays to 2 $(π^{+} π^{-}) η$ via $ψ$ (3686) radiative transitions

BESIII Collaboration, M. Ablikim, M. N. Achasov +642

Based on $2.7 \times 1 0^{9} ψ (3686)$ decays collected with the BESIII detector, the radiative decay $ψ (3686) \to γ 2 (π^{+} π^{-}) η$ is investigated to measure properties of S- and P…

Measurement of the Branching Fraction of \boldmath{ψ(2S)→γπ0}

Measurement of the e+e−→K+K−ψ(2S) Cross Section at Center-of-Mass Energies from 4.699 to 4.951 GeV and Search for Zcs±​ in the Zcs±​→K±ψ(2S) Decay

Observation of ηc​(1S, 2S) and χcJ​ decays to 2(π+π−)η via ψ(3686) radiative transitions

Measurement of the Branching Fraction of \boldmath{ $ψ (2 S) \to γ π^{0}$ }

Measurement of the $e^{+} e^{-} \to K^{+} K^{-} ψ (2 S)$ Cross Section at Center-of-Mass Energies from 4.699 to 4.951 GeV and Search for $Z_{cs}^{\pm}$ in the $Z_{cs}^{\pm} \to K^{\pm} ψ (2 S)$ Decay

Observation of $η_{c}$ (1S, 2S) and $χ_{c J}$ decays to 2 $(π^{+} π^{-}) η$ via $ψ$ (3686) radiative transitions