C. Fritzsch

activity

20222025

most citedObservation of the Anomalous Shape of

X (1840)

J / ψ \to γ 3 (π^{+} π^{-})

Indicating a Second Resonance Near

p p ˉ

Threshold

17 citations · 150 across the 27 of their papers we have counts for

collaborators

28 papers

hep-ex2025★ 7 cited

Test of local realism via entangled $Λ Λ ˉ$ system

BESIII Collaboration, M. Ablikim, M. N. Achasov +608

The non-locality of quantum correlations is a fundamental feature of quantum theory. The Bell inequality serves as a benchmark for distinguishing between predictions made by quantu…

hep-ex2024

Measurement of the Inclusive Cross Sections of Prompt $J / ψ$ and $ψ (3686)$ Production in $e^{+} e^{-}$ Annihilation from $s = 3.808$ to $4.951$ GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +610

The inclusive cross sections of prompt $J / ψ$ and $ψ (3686)$ production are measured at center-of-mass energies from 3.808 to 4.951 GeV. The dataset used is 22 fb $^{- 1}$ of $e^{+}e^{…

hep-ex2024★ 1 cited

Search for the leptonic decays $D^{+} \to e^{+} ν_{e}$ and $D^{+} \to μ^{+} ν_{μ}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +572

We present the first search for the leptonic decays $D^{*+} \to e^{+} ν_{e}$ and $D^{*+} \to μ^{+} ν_{μ}$ by analyzing a data sample of electron-positron collisions recorded with the BESIII de…

hep-ex2024★ 3 cited

Observation of the semileptonic decays $D^{0} \to K_{S}^{0} π^{-} π^{0} e^{+} ν_{e}$ and $D^{+} \to K_{S}^{0} π^{+} π^{-} e^{+} ν_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +611

By analyzing $e^{+} e^{-}$ annihilation data corresponding to an integrated luminosity of 2.93 $f b^{- 1}$ collected at a center-of-mass energy of 3.773 GeV with the \text{BESIII} det…

hep-ex2024★ 3 cited

$R (3780)$ Resonance Interpreted as the $1^{3} D_{1}$ -Wave Dominant State of Charmonium from Precise Measurements of the Cross Section of $e^{+} e^{-} \to$ Hadrons

M. Ablikim, M. N. Achasov, P. Adlarson +606

We report the precise measurements of the cross section of $e^{+} e^{-} \to$ hadrons at center-of-mass energies from 3.645 to 3.871 GeV. We thereby perform the most precise study…

hep-ex2023★ 7 cited

Evidence of the Singly Cabibbo Suppressed decay $Λ_{c}^{+} \to p π^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +610

Evidence for the singly Cabibbo suppressed decay $Λ_{c}^{+} \to p π^{0}$ is reported for the first time with a statistical significance of $3.7 σ$ based on 6.0 $fb^{- 1}$ of $e^+e^-…

hep-ex2023

Observation and branching fraction measurement of the decay $J / ψ \to p ˉ Σ^{+} K_{S}^{0} + c . c .$

M. Ablikim, M. N. Achasov, P. Adlarson +612

The first observation of the decays $J / ψ \to p ˉ Σ^{+} K_{S}^{0}$ and $J / ψ \to p Σ ˉ^{-} K_{S}^{0}$ is reported using $(10087 \pm 44) \times 1 0^{6}$ $J\!/\!…

hep-ex2023★ 1 cited

Search for $J / ψ$ weak decays containing $D$ meson

BESIII Collaboration, M. Ablikim, M. N. Achasov +611

Using a sample of about 10 billion $J / ψ$ events with the BESIII detector, we search for the weak decays of $J / ψ \to D ˉ^{0} π^{0} + c . c .$ , $J / ψ \to D ˉ^{0} η + c . c .$ , $J/ψ\to \bar{D}^…

hep-ex2023★ 17 cited

Observation of the Anomalous Shape of $X (1840)$ in $J / ψ \to γ 3 (π^{+} π^{-})$ Indicating a Second Resonance Near $p p ˉ$ Threshold

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

Using a sample of $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events, which is about 45 times larger than that was previously analyzed, a further investigation on the $J/ψ\rightarrow γ3(π^+π^-…

hep-ex2023★ 5 cited

Measurements of the absolute branching fractions of $Ω^{-}$ decays and test of the $Δ I = 1/2$ rule

BESIII Collaboration, M. Ablikim, M. N. Achasov +610

Based on a data set of $(27.12 \pm 0.10) \times 1 0^{8}$ $ψ (3686)$ events collected at the BESIII experiment, the absolute branching fractions of the three dominant $Ω^{-}$ decays are meas…

hep-ex2023★ 6 cited

Novel method to extract the femtometer structure of strange baryons using the vacuum polarization effect

BESIII Collaboration, M. Ablikim, M. N. Achasov +572

One of the fundamental goals of particle physics is to gain microscopic understanding of the strong interaction. Electromagnetic form factors quantify the structure of hadrons in t…

hep-ex2023

Search for the semileptonic decays $D_{s}^{+} \to K_{1} (1270)^{0} e^{+} ν_{e}$ and $D_{s}^{+} \to b_{1} (1235)^{0} e^{+} ν_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +611

By analyzing 7.33\,fb $^{- 1}$ of $e^{+} e^{-}$ collision data collected at center-of-mass energies between 4.128 and 4.226 GeV with the BESIII detector, we search for the semileptonic de…

hep-ex2023★ 3 cited

A coupled-channel analysis of the $X (3872)$ lineshape with BESIII data

BESIII Collaboration, M. Ablikim, M. N. Achasov +611

We perform a study of the $X (3872)$ lineshape using the data samples of $e^{+} e^{-} \to γ X (3872)$ , $X (3872) \to D^{0} D ˉ^{0} π^{0}$ and $π^{+} π^{-} J / ψ$ collected with the BESIII detector. The…

hep-ex2023★ 12 cited

Observation of $D^{+} \to K_{S}^{0} a_{0} (980)^{+}$ in the amplitude analysis of $D^{+} \to K_{S}^{0} π^{+} η$

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

We perform for the first time an amplitude analysis of the decay $D^{+} \to K_{S}^{0} π^{+} η$ and report the observation of the decay $D^{+} \to K_{S}^{0} a_{0} (980)^{+}$ using 2.93 fb$^…

hep-ex2023★ 1 cited

Observation of the Singly Cabibbo-Suppressed Decay $Λ_{c}^{+} \to Σ^{-} K^{+} π^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +616

The singly Cabibbo-suppressed decay $Λ_{c}^{+} \to Σ^{-} K^{+} π^{+}$ is observed for the first time with a statistical significance of $6.4 σ$ by using 4.5 fb $^{- 1}$ of $e^{+} e^{-}$ colli…

hep-ex2023★ 14 cited

Measurement of the cross section of $e^{+} e^{-} \to Ξ^{-} Ξ ˉ^{+}$ at center-of-mass energies between 3.510 and 4.843 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +610

Using $e^{+} e^{-}$ collision data corresponding to a total integrated luminosity of 12.9 $f b^{- 1}$ collected with the BESIII detector at the BEPCII collider, the exclusive Born cross s…

hep-ex2023★ 2 cited

Search for the lepton number violation decay $ϕ \to π^{+} π^{+} e^{-} e^{-}$ via $J / ψ \to ϕ η$

BESIII Collaboration, M. Ablikim, M. N. Achasov +596

Using $(1.0087 \pm 0.0044) \times 1 0^{10}$ $J / ψ$ events collected by the BESIII detector at the BEPCII collider, we search for the lepton number violation decay $ϕ \to π^{+} π^{+} e^{-} e^{-}$ …

hep-ex2023

Measurement of $e^{+} e^{-} \to ϕ η^{'}$ cross sections at center-of-mass energies from 3.508 to 4.951 GeV and search for the decay $ψ (3770) \to ϕ η^{'}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +611

The cross sections of the $e^{+} e^{-} \to ϕ η^{'}$ process at center-of-mass energies from 3.508 to 4.951 GeV are measured with high precision using 26.1 fb $^{- 1}$ data collected with th…

hep-ex2023★ 10 cited

Measurement of the branching fractions of the singly Cabibbo-suppressed decays $Λ_{c}^{+} \to p η$ and $Λ_{c}^{+} \to p ω$

BESIII Collaboration, M. Ablikim, M. N. Achasov +618

Based on 4.5 $\mbox{fb$^{-1}$}$ $e^{+} e^{-}$ collision data collected with BESIII detector at seven energy points between 4.600 and 4.699 GeV, the branching fractions for $Λ_{c}^{+…

hep-ex2023★ 8 cited

Search for the semi-muonic charmonium decay $J / ψ \to D^{-} μ^{+} ν_{μ} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +614

Using $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector at the BEPCII $e^{+} e^{-}$ storage ring at the center-of-mass energy of $s = 3.097 GeV$ , we p…

hep-ex2023★ 9 cited

Determination of Spin-parity Quantum Numbers for the Narrow Structure Near the $p Λ ˉ$ Threshold in $e^{+} e^{-} \to p K^{-} Λ ˉ + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +593

A narrow structure in the $p Λ ˉ$ system near the mass threshold, named as $X (2085)$ , is observed in the process $e^{+} e^{-} \to p K^{-} Λ ˉ$ with a statistical significance greater th…

hep-ex2023★ 9 cited

Study of the $f_{0} (980)$ and $f_{0} (500)$ Scalar Mesons through the Decay $D_{s}^{+} \to π^{+} π^{-} e^{+} ν_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +605

Using $e^{+} e^{-}$ collision data corresponding to an integrated luminosity of 7.33~ $f b^{- 1}$ recorded by the BESIII detector at center-of-mass energies between 4.128 and 4.226~$…

hep-ex2022

Measurements of the electric and magnetic form factors of the neutron for time-like momentum transfer

BESIII Collaboration, M. Ablikim, M. N. Achasov +589

We present the first measurements of the electric and magnetic form factors of the neutron in the time-like (positive $q^{2}$ ) region as function of four-momentum transfer. We explor…

hep-ex2022★ 2 cited

Observation of $e^{+} e^{-} \to π^{0} π^{0} ψ_{2} (3823)$

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

Using a data sample corresponding to an integrated luminosity of 11.3 $f b^{- 1}$ collected at center-of-mass energies from $4.23$ to $4.70$ ~GeV with the BESIII detector, we obse…

Test of local realism via entangled ΛΛˉ system

Measurement of the Inclusive Cross Sections of Prompt J/ψ and ψ(3686) Production in e+e− Annihilation from s​=3.808 to 4.951 GeV

Search for the leptonic decays D∗+→e+νe​ and D∗+→μ+νμ​

Observation of the semileptonic decays D0→KS0​π−π0e+νe​ and D+→KS0​π+π−e+νe​

R(3780) Resonance Interpreted as the 13D1​-Wave Dominant State of Charmonium from Precise Measurements of the Cross Section of e+e−→ Hadrons

Evidence of the Singly Cabibbo Suppressed decay Λc+​→pπ0

Observation and branching fraction measurement of the decay J/ψ→pˉ​Σ+KS0​+c.c.

Search for J/ψ weak decays containing D meson

Observation of the Anomalous Shape of X(1840) in J/ψ→γ3(π+π−) Indicating a Second Resonance Near ppˉ​ Threshold

Measurements of the absolute branching fractions of Ω− decays and test of the ΔI=1/2 rule

Novel method to extract the femtometer structure of strange baryons using the vacuum polarization effect

Search for the semileptonic decays Ds+​→K1​(1270)0e+νe​ and Ds+​→b1​(1235)0e+νe​

A coupled-channel analysis of the X(3872) lineshape with BESIII data

Observation of D+→KS0​a0​(980)+ in the amplitude analysis of D+→KS0​π+η

Observation of the Singly Cabibbo-Suppressed Decay Λc+​→Σ−K+π+

Measurement of the cross section of e+e−→Ξ−Ξˉ+ at center-of-mass energies between 3.510 and 4.843 GeV

Search for the lepton number violation decay ϕ→π+π+e−e− via J/ψ→ϕη

Measurement of e+e−→ϕη′ cross sections at center-of-mass energies from 3.508 to 4.951 GeV and search for the decay ψ(3770)→ϕη′

Measurement of the branching fractions of the singly Cabibbo-suppressed decays Λc+​→pη and Λc+​→pω

Search for the semi-muonic charmonium decay J/ψ→D−μ+νμ​+c.c.

Determination of Spin-parity Quantum Numbers for the Narrow Structure Near the pΛˉ Threshold in e+e−→pK−Λˉ+c.c.

Study of the f0​(980) and f0​(500) Scalar Mesons through the Decay Ds+​→π+π−e+νe​

Measurements of the electric and magnetic form factors of the neutron for time-like momentum transfer

Observation of e+e−→π0π0ψ2​(3823)

Test of local realism via entangled $Λ Λ ˉ$ system

Measurement of the Inclusive Cross Sections of Prompt $J / ψ$ and $ψ (3686)$ Production in $e^{+} e^{-}$ Annihilation from $s = 3.808$ to $4.951$ GeV

Search for the leptonic decays $D^{+} \to e^{+} ν_{e}$ and $D^{+} \to μ^{+} ν_{μ}$

Observation of the semileptonic decays $D^{0} \to K_{S}^{0} π^{-} π^{0} e^{+} ν_{e}$ and $D^{+} \to K_{S}^{0} π^{+} π^{-} e^{+} ν_{e}$

$R (3780)$ Resonance Interpreted as the $1^{3} D_{1}$ -Wave Dominant State of Charmonium from Precise Measurements of the Cross Section of $e^{+} e^{-} \to$ Hadrons

Evidence of the Singly Cabibbo Suppressed decay $Λ_{c}^{+} \to p π^{0}$

Observation and branching fraction measurement of the decay $J / ψ \to p ˉ Σ^{+} K_{S}^{0} + c . c .$

Search for $J / ψ$ weak decays containing $D$ meson

Observation of the Anomalous Shape of $X (1840)$ in $J / ψ \to γ 3 (π^{+} π^{-})$ Indicating a Second Resonance Near $p p ˉ$ Threshold

Measurements of the absolute branching fractions of $Ω^{-}$ decays and test of the $Δ I = 1/2$ rule

Search for the semileptonic decays $D_{s}^{+} \to K_{1} (1270)^{0} e^{+} ν_{e}$ and $D_{s}^{+} \to b_{1} (1235)^{0} e^{+} ν_{e}$

A coupled-channel analysis of the $X (3872)$ lineshape with BESIII data

Observation of $D^{+} \to K_{S}^{0} a_{0} (980)^{+}$ in the amplitude analysis of $D^{+} \to K_{S}^{0} π^{+} η$

Observation of the Singly Cabibbo-Suppressed Decay $Λ_{c}^{+} \to Σ^{-} K^{+} π^{+}$

Measurement of the cross section of $e^{+} e^{-} \to Ξ^{-} Ξ ˉ^{+}$ at center-of-mass energies between 3.510 and 4.843 GeV

Search for the lepton number violation decay $ϕ \to π^{+} π^{+} e^{-} e^{-}$ via $J / ψ \to ϕ η$

Measurement of $e^{+} e^{-} \to ϕ η^{'}$ cross sections at center-of-mass energies from 3.508 to 4.951 GeV and search for the decay $ψ (3770) \to ϕ η^{'}$

Measurement of the branching fractions of the singly Cabibbo-suppressed decays $Λ_{c}^{+} \to p η$ and $Λ_{c}^{+} \to p ω$

Search for the semi-muonic charmonium decay $J / ψ \to D^{-} μ^{+} ν_{μ} + c . c .$

Determination of Spin-parity Quantum Numbers for the Narrow Structure Near the $p Λ ˉ$ Threshold in $e^{+} e^{-} \to p K^{-} Λ ˉ + c . c .$

Study of the $f_{0} (980)$ and $f_{0} (500)$ Scalar Mesons through the Decay $D_{s}^{+} \to π^{+} π^{-} e^{+} ν_{e}$

Observation of $e^{+} e^{-} \to π^{0} π^{0} ψ_{2} (3823)$