R. Kappert

activity

20192023

most citedObservation of a near-threshold structure in the

K^{+}

recoil-mass spectra in

e^{+} e^{-} \to K^{+} (D_{s}^{-} D^{* 0} + D_{s}^{*-} D^{0})

192 citations · 1.2k across the 35 of their papers we have counts for

collaborators

35 papers

hep-ex2023

Measurement of the Branching Fraction for the Decay $ψ (3686) \to ϕ K_{S}^{0} K_{S}^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +592

Based on $(448.1 \pm 2.9) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector operating at the BEPCII collider, the decay $ψ (3686) \to ϕ K_{S}^{0} K_{S}^{0}$ is…

hep-ex2022★ 2 cited

Observation of $e^{+} e^{-} \to pp p ˉ n ˉ π^{-} + c . c .$

M. Ablikim, M. N. Achasov, P. Adlarson +559

Using data taken at 29 center-of-mass energies between 4.16 and 4.70 GeV with the BESIII detector at the Beijing Electron Positron Collider corresponding to a total integrated lumi…

hep-ex2022★ 6 cited

Search for hidden-charm tetraquark with strangeness in $e^{+} e^{-} \to K^{+} D_{s}^{-} D^{ 0} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +571

We report a search for a heavier partner of the recently observed $Z_{cs} (3985)^{-}$ state, denoted as $Z_{cs}^{' -}$ , in the process $e^{+} e^{-}\rightarrow K^{+}D_{s}^{*-}D^…

hep-ex2022★ 1 cited

Search for the weak decay $ψ (3686) \to Λ_{c}^{+} Σ ˉ^{-} + c . c$

BESIII Collaboration, M. Ablikim, M. N. Achasov +569

Using $(448.1 \pm 2.9) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector, we perform the first search for the weak baryonic decay $ψ(3686) \to Λ_c^{+} \barΣ^- +c.c…

hep-ex2022★ 34 cited

Observation of $Ξ^{-}$ Hyperon Transverse Polarization in $ψ (3686) \to Ξ^{-} Ξ ˉ^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +569

Using a sample of $(448.1 \pm 2.9)$ $\times 1 0^{6}$ $ψ (3686)$ decays collected with the BESIII detector at BEPCII, we report an observation of $Ξ^{-}$ transverse polarization with…

hep-ex2022★ 26 cited

Evidence for a neutral near-threshold structure in the $K_{S}^{0}$ recoil-mass spectra in $e^{+} e^{-} \to K_{S}^{0} D_{s}^{+} D^{-}$ and $e^{+} e^{-} \to K_{S}^{0} D_{s}^{+} D^{-}$

M. Ablikim, M. N. Achasov, P. Adlarson +558

We study the processes $e^{+} e^{-} \to K_{S}^{0} D_{s}^{+} D^{*-}$ and $e^{+} e^{-} \to K_{S}^{0} D_{s}^{*+} D^{-}$ , as well as their charge conjugated processes, at five center…

hep-ex2022★ 60 cited

Observation of the $Y (4230)$ and a new structure in $e^{+} e^{-} \to K^{+} K^{-} J / ψ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +560

The cross sections of $e^{+} e^{-} \to K^{+} K^{-} J / ψ$ at center-of-mass energies from 4.127 to 4.600~GeV are measured based on 15.6 fb $^{- 1}$ data collected with the BESIII detector…

hep-ex2022★ 70 cited

Measurement of integrated luminosities at BESIII for data samples at center-of-mass energies between 4.0 and 4.6 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +550

The integrated luminosities of the data samples collected in the BESIII experiment in 2016--2017 at center-of-mass energies between 4.19 and 4.28 GeV are measured with a precision…

hep-ex2021★ 121 cited

Number of $J/ ψ$ events at BESIII

BESIII Collaboration

Using inclusive decays of the $J/ ψ$ , a precise determination of the number of $J/ ψ$ events collected with the BESIII detector is performed. For the two data sets taken in 2…

hep-ex2021★ 3 cited

Observation of $J / ψ$ decays to $e^{+} e^{-} e^{+} e^{-}$ and $e^{+} e^{-} μ^{+} μ^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +543

Using a data sample of $4.481 \times 1 0^{8} ψ^{'}$ events collected with the BESIII detector, we report the first observation of the four-lepton-decays $J / ψ \to e^{+} e^{-} e^{+} e^{-}$ and $J…

hep-ex2021★ 5 cited

Measurement of the absolute branching fractions of Jpsi to gamma eta and eta decay modes

BESIII Collaboration

Based on a data sample of (1.0087+-0.0044)x10^10 Jpsi events collected by the BESIII detector at the BEPCII accelerator, the absolute branching fraction (BF) of the decay Jpsi->gam…

hep-ex2021★ 11 cited

First Measurement of the Absolute Branching Fraction of $Λ \to p μ^{-} ν ˉ_{μ}$

M. Ablikim, M. N. Achasov, P. Adlarson +504

The absolute branching fraction of $Λ \to p μ^{-} ν ˉ_{μ}$ is reported for the first time based on an $e^{+} e^{-}$ annihilation sample of ten billion $J / ψ$ events collected with the BESII…

hep-ex2021★ 92 cited

New Features in the Electromagnetic Structure of the Neutron

M. Ablikim, M. N. Achasov, P. Adlarson +504

Here we present new results for the Born cross section and the effective form factor of the neutron at the center-of-mass energies $s$ between 2.0 and 3.08 GeV, using…

hep-ex2021★ 12 cited

Amplitude analysis and branching fraction measurement of $D_{s}^{+} \to K^{-} K^{+} π^{+} π^{0}$

BESIII Collaboration

The first amplitude analysis of the decay $D_{s}^{+} \to K^{-} K^{+} π^{+} π^{0}$ is presented using the data samples, corresponding to an integrated luminosity of 6.32 fb $^{- 1}$ , collected with t…

hep-ex2021★ 14 cited

Observation of $D^{0} \to K_{1} (1270)^{-} e^{+} ν_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +507

Using 2.93 fb $^{- 1}$ of $e^{+} e^{-}$ collision data taken with the BESIII detector at a center-of-mass energy of 3.773 $GeV$ , the observation of the $D^{0} \to K_{1} (1270)^{-} e^{+} ν_{e}$ s…

hep-ex2021★ 10 cited

Amplitude analysis and branching-fraction measurement of $D_{s}^{+} \to K_{S}^{0} K^{-} π^{+} π^{+}$

BESIII Collaboration

Using 6.32 fb $^{- 1}$ of $e^{+} e^{-}$ collision data collected by the BESIII detector at the center-of-mass energies between 4.178 and 4.226 GeV,~an amplitude analysis of the $D^{+}_{s}…

hep-ex2021★ 3 cited

Study of $e^{+} e^{-} \to π^{0} X (3872) γ$ and search for $Z_{c} (4020)^{0} \to X (3872) γ$

M. Ablikim, M. N. Achasov, P. Adlarson +505

Using data samples collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energies from 4.178 to 4.600 GeV, we study the process $e^+e^-\rightarr…

hep-ex2020★ 8 cited

Study of Excited $Ξ$ Baryons with the PANDA Detector

PANDA Collaboration

The study of baryon excitation spectra provides insight into the inner structure of baryons. So far, most of the world-wide efforts have been directed towards $N^{*}$ and $Δ$ spectro…

hep-ex2020★ 192 cited

Observation of a near-threshold structure in the $K^{+}$ recoil-mass spectra in $e^{+} e^{-} \to K^{+} (D_{s}^{-} D^{* 0} + D_{s}^{*-} D^{0})$

BESIII Collaboration, M. Ablikim, M. N. Achasov +494

We report a study of the processes of $e^{+} e^{-} \to K^{+} (D_{s}^{-} D^{* 0} + D_{s}^{*-} D^{0})$ based on $e^{+} e^{-}$ annihilation samples collected with the BESIII detector operating at BEPCII at…

hep-ex2020★ 4 cited

Search for New Hadronic Decays of $h_{c}$ and Observation of $h_{c} \to K^{+} K^{-} π^{+} π^{-} π^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +493

Ten hadronic final states of the $h_{c}$ decays are investigated via the process $ψ (3686) \to π^{0} h_{c}$ , using a data sample of $(448.1 \pm 2.9) \times 1 0^{6}$ $ψ (3686)$ events c…

hep-ex2020★ 24 cited

The potential of $Λ$ and $Ξ^{-}$ studies with PANDA at FAIR

The PANDA Collaboration

The antiproton experiment PANDA at FAIR is designed to bring hadron physics to a new level in terms of scope, precision and accuracy. In this work, its unique capability for studie…

hep-ex2020★ 60 cited

Measurements of Sigma+ and Sigma- Time-like Electromagnetic Form Factors for center-of-mass energies from 2.3864 to 3.0200 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +494

The Born cross sections of the $e^{+} e^{-} \to Σ^{+} Σ ˉ^{-}$ and $e^{+} e^{-} \to Σ^{-} Σ ˉ^{+}$ processes are determined with high precision for center-of-mass energy from 2.3864 to…

hep-ex2020★ 13 cited

Measurement of cross sections for $e^{+} e^{-} \to μ^{+} μ^{-}$ at center-of-mass energies from 3.80 to 4.60 GeV

BESIII Collaboration

The observed cross sections for $e^{+} e^{-} \to μ^{+} μ^{-}$ at energies from 3.8 to 4.6 GeV are measured using data samples taken with the BESIII detector operated at the BEPCII col…

hep-ex2020★ 12 cited

Observation of the Doubly Cabibbo-Suppressed Decay $D^{+} \to K^{+} π^{+} π^{-} π^{0}$ and Evidence for $D^{+} \to K^{+} ω$

BESIII Collaboration

Using $2.93 f b^{- 1}$ of $e^{+} e^{-}$ collision data collected at a center-of-mass energy of 3.773 GeV with the BESIII detector, the first observation of the doubly Cabibbo-suppress…

Measurement of the Branching Fraction for the Decay ψ(3686)→ϕKS0​KS0​

Observation of e+e−→pppˉ​nˉπ−+c.c.

Search for hidden-charm tetraquark with strangeness in e+e−→K+Ds∗−​D∗0+c.c.

Search for the weak decay ψ(3686)→Λc+​Σˉ−+c.c

Observation of Ξ− Hyperon Transverse Polarization in ψ(3686)→Ξ−Ξˉ+

Evidence for a neutral near-threshold structure in the KS0​ recoil-mass spectra in e+e−→KS0​Ds+​D∗− and e+e−→KS0​Ds∗+​D−

Observation of the Y(4230) and a new structure in e+e−→K+K−J/ψ

Measurement of integrated luminosities at BESIII for data samples at center-of-mass energies between 4.0 and 4.6 GeV

Number of J/ψ events at BESIII

Observation of J/ψ decays to e+e−e+e− and e+e−μ+μ−

Measurement of the absolute branching fractions of Jpsi to gamma eta and eta decay modes

First Measurement of the Absolute Branching Fraction of Λ→pμ−νˉμ​

New Features in the Electromagnetic Structure of the Neutron

Amplitude analysis and branching fraction measurement of Ds+​→K−K+π+π0

Observation of D0→K1​(1270)−e+νe​

Amplitude analysis and branching-fraction measurement of Ds+​→KS0​K−π+π+

Study of e+e−→π0X(3872)γ and search for Zc​(4020)0→X(3872)γ

Study of Excited Ξ Baryons with the PANDA Detector

Observation of a near-threshold structure in the K+ recoil-mass spectra in e+e−→K+(Ds−​D∗0+Ds∗−​D0)

Search for New Hadronic Decays of hc​ and Observation of hc​→K+K−π+π−π0

The potential of Λ and Ξ− studies with PANDA at FAIR

Measurements of Sigma+ and Sigma- Time-like Electromagnetic Form Factors for center-of-mass energies from 2.3864 to 3.0200 GeV

Measurement of cross sections for e+e−→μ+μ− at center-of-mass energies from 3.80 to 4.60 GeV

Observation of the Doubly Cabibbo-Suppressed Decay D+→K+π+π−π0 and Evidence for D+→K+ω

Measurement of the Branching Fraction for the Decay $ψ (3686) \to ϕ K_{S}^{0} K_{S}^{0}$

Observation of $e^{+} e^{-} \to pp p ˉ n ˉ π^{-} + c . c .$

Search for hidden-charm tetraquark with strangeness in $e^{+} e^{-} \to K^{+} D_{s}^{-} D^{ 0} + c . c .$

Search for the weak decay $ψ (3686) \to Λ_{c}^{+} Σ ˉ^{-} + c . c$

Observation of $Ξ^{-}$ Hyperon Transverse Polarization in $ψ (3686) \to Ξ^{-} Ξ ˉ^{+}$

Evidence for a neutral near-threshold structure in the $K_{S}^{0}$ recoil-mass spectra in $e^{+} e^{-} \to K_{S}^{0} D_{s}^{+} D^{-}$ and $e^{+} e^{-} \to K_{S}^{0} D_{s}^{+} D^{-}$

Observation of the $Y (4230)$ and a new structure in $e^{+} e^{-} \to K^{+} K^{-} J / ψ$

Number of $J/ ψ$ events at BESIII

Observation of $J / ψ$ decays to $e^{+} e^{-} e^{+} e^{-}$ and $e^{+} e^{-} μ^{+} μ^{-}$

First Measurement of the Absolute Branching Fraction of $Λ \to p μ^{-} ν ˉ_{μ}$

Amplitude analysis and branching fraction measurement of $D_{s}^{+} \to K^{-} K^{+} π^{+} π^{0}$

Observation of $D^{0} \to K_{1} (1270)^{-} e^{+} ν_{e}$

Amplitude analysis and branching-fraction measurement of $D_{s}^{+} \to K_{S}^{0} K^{-} π^{+} π^{+}$

Study of $e^{+} e^{-} \to π^{0} X (3872) γ$ and search for $Z_{c} (4020)^{0} \to X (3872) γ$

Study of Excited $Ξ$ Baryons with the PANDA Detector

Observation of a near-threshold structure in the $K^{+}$ recoil-mass spectra in $e^{+} e^{-} \to K^{+} (D_{s}^{-} D^{* 0} + D_{s}^{*-} D^{0})$

Search for New Hadronic Decays of $h_{c}$ and Observation of $h_{c} \to K^{+} K^{-} π^{+} π^{-} π^{0}$

The potential of $Λ$ and $Ξ^{-}$ studies with PANDA at FAIR

Measurement of cross sections for $e^{+} e^{-} \to μ^{+} μ^{-}$ at center-of-mass energies from 3.80 to 4.60 GeV

Observation of the Doubly Cabibbo-Suppressed Decay $D^{+} \to K^{+} π^{+} π^{-} π^{0}$ and Evidence for $D^{+} \to K^{+} ω$