M. Lellmann

activity

20202025

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 59 of their papers we have counts for

collaborators

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58 papers · 1 filter

hep-ex2025

Measurements of the Absolute Branching Fraction of the Semileptonic Decay $Ξ^{-} \to Λ e^{-} ν ˉ_{e}$ and the Axial Charge of the $Ξ^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +685

Using $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector, we study the semileptonic decay $Ξ^{-} \to Λ e^{-} ν ˉ_{e}$ for the first time at an electron-…

hep-ex2025★ 1 cited

Evidence of transverse polarization of $Ξ^{0}$ hyperon in $ψ (3686) \to Ξ^{0} Ξ ˉ^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +684

Using $(2.712 \pm 0.014) \times 1 0^{9}$ $ψ (3686)$ events collected with the BESIII detector at the BEPCII collider, we report an evidence of $Ξ^{0}$ transverse polarization with a sign…

hep-ex2025

Search for $η_{1} (1855)$ in $χ_{c J} \to η η η^{'}$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +689

Based on a sample of $2.7 \times 1 0^{9}$ $ψ (3686)$ events collected by the BESIII detector operating at the BEPCII collider, an analysis of the decay $ψ(3686)\toγχ_{cJ}, χ_{cJ}\toηηη…

hep-ex2025

Observation of the decay $ψ (3686) \to Σ^{0} Σ ˉ^{0} ω$

BESIII Collaboration, M. Ablikim, M. N. Achasov +689

Using a dataset of $(27.12 \pm 0.14) \times 1 0^{8}$ $ψ (3686)$ events collected by the BESIII detector operating at the BEPCII collider, we report the first observation of the decay $…

hep-ex2024★ 10 cited

Improved measurements of $D^{0} \to K^{-} ℓ^{+} ν_{ℓ}$ and $D^{+} \to K ˉ^{0} ℓ^{+} ν_{ℓ}$

BESIII Collaboration

Using 7.93 fb $^{- 1}$ of $e^{+} e^{-}$ collision data collected at the center-of-mass energy of 3.773 GeV with the BESIII detector, we measure the absolute branching fractions of $D^0\to…

hep-ex2024★ 2 cited

Cross section measurement of $e^{+} e^{-} \to η ψ (2 S)$ and search for $e^{+} e^{-} \to η X ~ (3872)$

BESIII Collaboration, M. Ablikim, M. N. Achasov +645

The energy-dependent cross section for $e^{+} e^{-} \to η ψ (2 S)$ is measured at eighteen center of mass energies from 4.288 GeV to 4.951 GeV using the BESIII detector. Using the same data…

hep-ex2024★ 54 cited

Determination of the number of $ψ (3686)$ events taken at BESIII

BESIII Collaboration, M. Ablikim, M. N. Achasov +647

The number of $ψ (3686)$ events collected by the BESIII detector during the 2021 run period is determined to be $(2259.3 \pm 11.1) \times 1 0^{6}$ by counting inclusive $ψ (3686)$ hadroni…

hep-ex2023★ 7 cited

Search for the decay $χ_{c 1} (3872) \to π^{+} π^{-} χ_{c 1}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +619

Using a data sample corresponding to an integrated luminosity of 10.9 fb $^{- 1}$ collected at center-of-mass energies from 4.16 to 4.34 GeV with the BESIII detector, we search for t…

hep-ex2023★ 12 cited

Measurement of $e^{+} e^{-} \to η J / ψ$ Cross Section from $s =$ 3.808 GeV to 4.951 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +619

Using data samples with an integrated luminosity of 22.42 fb $^{- 1}$ collected by the BESIII detector operating at the BEPCII storage ring, we measure the cross sections of the $e^{…

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

Measurement of the $e^{+} e^{-} \to π^{+} π^{-} J / ψ$ cross section in the vicinity of 3.872 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +566

We report a measurement of the cross section for the process $e^{+} e^{-} \to π^{+} π^{-} J / ψ$ around the $X (3872)$ mass in search for the direct formation of $e^{+} e^{-} \to X (3872)$ through the tw…

hep-ex2022

Study of $ψ (3686) \to Λ Λ ˉ ω$

BESIII Collaboration, M. Ablikim, M. N. Achasov +551

Based on a data sample of $(448.1 \pm 2.9) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector at the BEPCII collider, the branching fraction of $ψ(3686)\rightarrowΛ\barΛω…

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

Measurement of the branching fraction and decay asymmetry of $Λ \to nγ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +565

The radiative hyperon decay $Λ \to nγ$ is studied using $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector operating at BEPCII. The absolute branching fractio…

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

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

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

Using $6.32$ fb $^{- 1}$ of $e^{+} e^{-}$ collision data collected at the center-of-mass energies between 4.178 and 4.226 GeV with the BESIII detector, we perform an amplitude analysi…

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★ 3 cited

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

BESIII Collaboration, M. Ablikim, M. N. Achasov +505

Using $e^{+} e^{-}$ annihilation data corresponding to a total integrated luminosity of $6.32$ fb $^{- 1}$ collected at the center-of-mass energies between 4.178 and 4.226 GeV with th…

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-ex2022

Cross section measurements of the processes $e^{+} e^{-} \to ω π^{0}$ and $ω η$ at center-of-mass energies between 3.773 and 4.701 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +546

The Born cross sections of the processes $e^{+} e^{-} \to ω π^{0}$ and $e^{+} e^{-} \to ω η$ are measured at center-of-mass energies between 3.773 and 4.701 GeV using a total i…

hep-ex2022★ 8 cited

Measurements of Absolute Branching Fractions of $D^{0} \to K_{L}^{0} ϕ$ , $K_{L}^{0} η$ , $K_{L}^{0} ω$ , and $K_{L}^{0} η^{'}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +504

We report the first measurements of the absolute branching fractions of $D^{0} \to K_{L}^{0} ϕ$ , $D^{0} \to K_{L}^{0} η$ , $D^{0} \to K_{L}^{0} ω$ , and $D^{0} \to K_{L}^{0} η^{'}$ , obtained by analyzing $2.93…

Measurements of the Absolute Branching Fraction of the Semileptonic Decay Ξ−→Λe−νˉe​ and the Axial Charge of the Ξ−

Evidence of transverse polarization of Ξ0 hyperon in ψ(3686)→Ξ0Ξˉ0

Search for η1​(1855) in χcJ​→ηηη′ decays

Observation of the decay ψ(3686)→Σ0Σˉ0ω

Improved measurements of D0→K−ℓ+νℓ​ and D+→Kˉ0ℓ+νℓ​

Cross section measurement of e+e−→ηψ(2S) and search for e+e−→ηX~(3872)

Determination of the number of ψ(3686) events taken at BESIII

Search for the decay χc1​(3872)→π+π−χc1​

Measurement of e+e−→ηJ/ψ Cross Section from s​= 3.808 GeV to 4.951 GeV

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.

Measurement of the e+e−→π+π−J/ψ cross section in the vicinity of 3.872 GeV

Study of ψ(3686)→ΛΛˉω

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

Measurement of the branching fraction and decay asymmetry of Λ→nγ

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

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

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

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

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

Cross section measurements of the processes e+e−→ωπ0 and ωη at center-of-mass energies between 3.773 and 4.701 GeV

Measurements of Absolute Branching Fractions of D0→KL0​ϕ, KL0​η, KL0​ω, and KL0​η′

Measurements of the Absolute Branching Fraction of the Semileptonic Decay $Ξ^{-} \to Λ e^{-} ν ˉ_{e}$ and the Axial Charge of the $Ξ^{-}$

Evidence of transverse polarization of $Ξ^{0}$ hyperon in $ψ (3686) \to Ξ^{0} Ξ ˉ^{0}$

Search for $η_{1} (1855)$ in $χ_{c J} \to η η η^{'}$ decays

Observation of the decay $ψ (3686) \to Σ^{0} Σ ˉ^{0} ω$

Improved measurements of $D^{0} \to K^{-} ℓ^{+} ν_{ℓ}$ and $D^{+} \to K ˉ^{0} ℓ^{+} ν_{ℓ}$

Cross section measurement of $e^{+} e^{-} \to η ψ (2 S)$ and search for $e^{+} e^{-} \to η X ~ (3872)$

Determination of the number of $ψ (3686)$ events taken at BESIII

Search for the decay $χ_{c 1} (3872) \to π^{+} π^{-} χ_{c 1}$

Measurement of $e^{+} e^{-} \to η J / ψ$ Cross Section from $s =$ 3.808 GeV to 4.951 GeV

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 $e^{+} e^{-} \to K^{+} D_{s}^{-} D^{ 0} + c . c .$

Measurement of the $e^{+} e^{-} \to π^{+} π^{-} J / ψ$ cross section in the vicinity of 3.872 GeV

Study of $ψ (3686) \to Λ Λ ˉ ω$

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

Measurement of the branching fraction and decay asymmetry of $Λ \to nγ$

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

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

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 $e^{+} e^{-} \to K^{+} K^{-} J / ψ$

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

Cross section measurements of the processes $e^{+} e^{-} \to ω π^{0}$ and $ω η$ at center-of-mass energies between 3.773 and 4.701 GeV

Measurements of Absolute Branching Fractions of $D^{0} \to K_{L}^{0} ϕ$ , $K_{L}^{0} η$ , $K_{L}^{0} ω$ , and $K_{L}^{0} η^{'}$