P. Shen

activity

20142021

e^{+} e^{-} \to π^{+} π^{-} J / ψ

cross section at center-of-mass energies from 3.77 to 4.60 GeV

264 citations · 2.6k across the 57 of their papers we have counts for

collaborators

57 papers

hep-ex2021★ 22 cited

Search for the decay $D^{0} \to π^{0} ν ν ˉ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +501

We present the first experimental search for the rare charm decay $D^{0} \to π^{0} ν ν ˉ$ . It is based on an $e^{+} e^{-}$ collision sample consisting of $10.6 \times 1 0^{6}$ pairs of $D…

hep-ex2021★ 9 cited

Search for baryon and lepton number violating decays $D^{0} \to p ˉ e^{+}$ and $D^{0} \to p e^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +503

Using an electron-positron collision data sample corresponding to an integrated luminosity of 2.93~fb $^{- 1}$ collected with the BESIII detector at a center-of-mass energy of 3.773…

hep-ex2021★ 4 cited

Observation of $D^{0 (+)} \to K_{S}^{0} π^{0 (+)} ω$ and improved measurement of $D^{0} \to K^{-} π^{+} ω$

M. Ablikim, M. N. Achasov, P. Adlarson +502

By analyzing an $e^{+} e^{-}$ annihilation data sample with an integrated luminosity of $2.93 f b^{- 1}$ taken at the center-of-mass energy of 3.773 GeV with the BESIII detector, we…

hep-ex2021

Search for invisible decays of the $Λ$ baryon

BESIII Collaboration, M. Ablikim, M. N. Achasov +498

A search for invisible decays of the $Λ$ baryon is carried out in the process $J / ψ \to Λ Λ ˉ$ based on $(1.0087 \pm 0.0044) \times 1 0^{10}$ $J / ψ$ events collected with the BESIII detect…

hep-ex2021★ 6 cited

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

BESIII Collaboration, M. Ablikim, M. N. Achasov +498

Using a data set corresponding to an integrated luminosity of 6.32~ $f b^{- 1}$ recorded by the BESIII detector at center-of-mass energies between 4.178 and 4.226~GeV, an amplitud…

hep-ex2021★ 6 cited

Amplitude analysis of $D_{s}^{+} \to π^{+} π^{-} π^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +488

Utilizing the data set corresponding to an integrated luminosity of $3.19$ fb $^{- 1}$ collected by the BESIII detector at a center-of-mass energy of 4.178 GeV, we perform an amplitu…

hep-ex2017★ 12 cited

Observation of $e^{+} e^{-} \to ϕ χ_{c 1}$ and $ϕ χ_{c 2}$ at $s$ =4.600 GeV

M. Ablikim, M. N. Achasov, S. Ahmed +427

Using a data sample collected with the BESIII detector operating at the BEPCII storage ring at a center-of-mass energy of $s = 4.600$ GeV, we search for the production of $e^{…

hep-ex2017★ 46 cited

Precision Study of $η^{'} \to γ π^{+} π^{-}$ Decay Dynamics

BESIII Collaboration, M. Ablikim, M. N. Achasov +431

Using a low background data sample of $9.7 \times 1 0^{5}$ $J ψ \to γ η^{'}$ , $η^{'} \to γ π^{+} π^{-}$ events, which are 2 orders of magnitude larger than those from the pr…

hep-ex2017★ 94 cited

Precision measurement of the $e^{+} e^{-} \to Λ_{c}^{+} Λ ˉ_{c}^{-}$ cross section near threshold

M. Ablikim, M. N. Achasov, S. Ahmed +445

The Born cross section of the $e^{+} e^{-} \to Λ_{c}^{+} Λ ˉ_{c}^{-}$ process is measured with unprecedented precision using data collected with the BESIII detector at $\s…

hep-ex2017★ 5 cited

Observation of $e^{+} e^{-} \to η Y (2175)$ at center-of-mass energies above 3.7 $\sim$ GeV

M. Ablikim, M. N. Achasov, S. Ahmed +426

The state $Y (2175)$ is observed in the process $e^{+} e^{-} \to η Y (2175)$ at center-of-mass energies between 3.7 and 4.6 $\sim$ GeV with a statistical significance larger than $10 σ$ usin…

hep-ex2017★ 88 cited

Observation of a cross-section enhancement near mass threshold in $e^{+} e^{-} \to Λ Λ ˉ$

M. Ablikim, M. N. Achasov, S. Ahmed +428

The process $e^{+} e^{-} \to Λ Λ ˉ$ is studied using data samples at $s = 2.2324$ , 2.400, 2.800 and 3.080 GeV collected with the BESIII detector operating at the BEPCII…

hep-ex2017★ 13 cited

Measurement of the integrated luminosity and the center-of-mass energy of the data taken by BESIII at $s = 2.125$ GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +322

To study the nature of the state $Y (2175)$ , a dedicated data set of $e^{+} e^{-}$ collision data was collected at the center-of-mass energy of 2.125 GeV with the BESIII detector at the…

hep-ex2017★ 16 cited

Observation of $e^{+} e^{-} \to η h_{c}$ at center-of-mass energies from 4.085 to 4.600 GeV

BESIII collaboration, M. Ablikim, M. N. Achasov +425

We observe for the first time the process $e^{+} e^{-} \to η h_{c}$ with data collected by the BESIII experiment. Significant signals are observed at the center-of-mass energy…

hep-ex2017★ 54 cited

Analysis of $D^{+} \to K ˉ^{0} e^{+} ν_{e}$ and $D^{+} \to π^{0} e^{+} ν_{e}$ Semileptonic Decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +428

Using 2.93~fb $^{- 1}$ of data taken at 3.773 GeV with the BESIII detector operated at the BEPCII collider, we study the semileptonic decays $D^{+} \to K ˉ^{0} e^{+} ν_{e}$ and $D^+ \to π^0…

hep-ex2017★ 105 cited

Measurement of $e^{+} e^{-} \to π^{+} π^{-} ψ (3686)$ from 4.008 to 4.600 $\sim$ GeV and observation of a charged structure in the $π^{\pm} ψ (3686)$ mass spectrum

M. Ablikim, M. N. Achasov, S. Ahmed +424

We study the process $e^{+} e^{-} \to π^{+} π^{-} ψ (3686)$ using 5.1 $f b^{- 1}$ of data collected at 16 center-of-mass energy ( $s$ ) points from 4.008 to 4.600 $\sim$ GeV b…

hep-ex2017★ 34 cited

Evidence for the singly-Cabibbo-suppressed decay $Λ_{c}^{+} \to p η$ and search for $Λ_{c}^{+} \to p π^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +421

We study the singly-Cabibbo-suppressed decays $Λ_{c}^{+} \to p η$ and $Λ_{c}^{+} \to p π^{0}$ using $Λ_{c}^{+} Λ_{c}^{+}$ pairs produced by $e^{+} e^{-}$ collisions at a center-of-mass energy…

hep-ex2017★ 20 cited

Cross section measurements of $e^{+} e^{-} \to p p ˉ π^{0}$ at center-of-mass energies between 4.008 and 4.600 GeV

M. Ablikim, M. N. Achasov, S. Ahmed +429

Based on $e^{+} e^{-}$ annihilation data samples collected with the BESIII detector at the BEPCII collider at 13 center of mass energies from 4.008 to 4.600 GeV, measurements of the Bor…

hep-ex2017★ 13 cited

Measurement of higher-order multipole amplitudes in $ψ (3686) \to γ χ_{c 1, 2}$ with $χ_{c 1, 2} \to γ J / ψ$ and search for the transition $η_{c} (2 S) \to γ J / ψ$

M. Ablikim, M. N. Achasov, X. C. Ai +424

Using 106~million $ψ (3686)$ events collected with the BESIII detector, we measure multipole amplitudes for the decay $ψ (3686) \to γ χ_{c 1, 2} \to γ γ J / ψ$ beyond the dominant elect…

hep-ex2016★ 4 cited

Observation of the helicity-selection-rule suppressed decay of the $χ_{c 2}$ charmonium state

BESIII Collaboration, M. Ablikim, M. N. Achasov +424

The decays of $χ_{c 2} \to K^{+} K^{-} π^{0}$ , $K_{S} K^{\pm} π^{\mp}$ and $π^{+} π^{-} π^{0}$ are studied with the $ψ (3686)$ data samples collected with the Beijing Spectrometer (BESIII)…

hep-ex2016★ 62 cited

Measurement of the Absolute Branching Fraction for $Λ_{c}^{+} \to Λ μ^{+} ν_{μ}$

M. Ablikim, M. N. Achasov, S. Ahmed +424

We report the first measurement of the absolute branching fraction for $Λ_{c}^{+} \to Λ μ^{+} ν_{μ}$ . This measurement is based on a sample of $e^{+} e^{-}$ annihilation data at a center…

hep-ex2016★ 39 cited

Observation of $Λ_{c}^{+} \to n K_{S}^{0} π^{+}$

M. Ablikim, M. N. Achasov, S. Ahmed +424

We report the first direct measurement of decays of the $Λ_{c}^{+}$ baryon involving the neutron. The analysis is performed using 567 pb $^{- 1}$ of $e^{+} e^{-}$ collision data collected at…

hep-ex2016★ 264 cited

Precise measurement of the $e^{+} e^{-} \to π^{+} π^{-} J / ψ$ cross section at center-of-mass energies from 3.77 to 4.60 GeV

M. Ablikim, M. N. Achasov, X. C. Ai +412

The cross section for the process $e^{+} e^{-} \to π^{+} π^{-} J / ψ$ is measured precisely at center-of-mass energies from 3.77 to 4.60~GeV using 9~fb $^{- 1}$ of data collected with the BESIII d…

hep-ex2016★ 189 cited

Evidence of Two Resonant Structures in $e^{+} e^{-} \to π^{+} π^{-} h_{c}$

M. Ablikim, M. N. Achasov, S. Ahmed +424

The cross sections of $e^{+} e^{-} \to π^{+} π^{-} h_{c}$ at center-of-mass energies from 3.896 to 4.600 GeV are measured using data samples collected with the BESIII detector operating a…

hep-ex2016★ 13 cited

Observation of $J / ψ \to γ η π^{0}$

M. Ablikim, M. N. Achasov, X. C. Ai +412

We present the first study of the process $J / ψ \to γ η π^{0}$ using $(223.7 \pm 1.4) \times 1 0^{6}$ $J / ψ$ events accumulated with the BESIII detector at the BEPCII facility. The b…

Search for the decay D0→π0ννˉ

Search for baryon and lepton number violating decays D0→pˉ​e+ and D0→pe−

Observation of D0(+)→KS0​π0(+)ω and improved measurement of D0→K−π+ω

Search for invisible decays of the Λ baryon

Amplitude analysis and branching fraction measurement of the decay Ds+​→π+π0π0

Amplitude analysis of Ds+​→π+π−π+

Observation of e+e−→ϕχc1​ and ϕχc2​ at s​=4.600 GeV

Precision Study of η′→γπ+π− Decay Dynamics

Precision measurement of the e+e− → Λc+​Λˉc−​ cross section near threshold

Observation of e+e−→ηY(2175) at center-of-mass energies above 3.7∼GeV

Observation of a cross-section enhancement near mass threshold in e+e−→ΛΛˉ

Measurement of the integrated luminosity and the center-of-mass energy of the data taken by BESIII at s​=2.125 GeV

Observation of e+e−→ηhc​ at center-of-mass energies from 4.085 to 4.600 GeV

Analysis of D+→Kˉ0e+νe​ and D+→π0e+νe​ Semileptonic Decays

Measurement of e+e−→π+π−ψ(3686) from 4.008 to 4.600∼GeV and observation of a charged structure in the π±ψ(3686) mass spectrum

Evidence for the singly-Cabibbo-suppressed decay Λc+​→pη and search for Λc+​→pπ0

Cross section measurements of e+e−→ppˉ​π0 at center-of-mass energies between 4.008 and 4.600 GeV

Measurement of higher-order multipole amplitudes in ψ(3686)→γχc1,2​ with χc1,2​→γJ/ψ and search for the transition ηc​(2S)→γJ/ψ

Observation of the helicity-selection-rule suppressed decay of the χc2​ charmonium state

Measurement of the Absolute Branching Fraction for Λc+​→Λμ+νμ​

Observation of Λc+​→nKS0​π+

Precise measurement of the e+e−→π+π−J/ψ cross section at center-of-mass energies from 3.77 to 4.60 GeV

Evidence of Two Resonant Structures in e+e−→π+π−hc​

Observation of J/ψ→γηπ0

Search for the decay $D^{0} \to π^{0} ν ν ˉ$

Search for baryon and lepton number violating decays $D^{0} \to p ˉ e^{+}$ and $D^{0} \to p e^{-}$

Observation of $D^{0 (+)} \to K_{S}^{0} π^{0 (+)} ω$ and improved measurement of $D^{0} \to K^{-} π^{+} ω$

Search for invisible decays of the $Λ$ baryon

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

Amplitude analysis of $D_{s}^{+} \to π^{+} π^{-} π^{+}$

Observation of $e^{+} e^{-} \to ϕ χ_{c 1}$ and $ϕ χ_{c 2}$ at $s$ =4.600 GeV

Precision Study of $η^{'} \to γ π^{+} π^{-}$ Decay Dynamics

Precision measurement of the $e^{+} e^{-} \to Λ_{c}^{+} Λ ˉ_{c}^{-}$ cross section near threshold

Observation of $e^{+} e^{-} \to η Y (2175)$ at center-of-mass energies above 3.7 $\sim$ GeV

Observation of a cross-section enhancement near mass threshold in $e^{+} e^{-} \to Λ Λ ˉ$

Measurement of the integrated luminosity and the center-of-mass energy of the data taken by BESIII at $s = 2.125$ GeV

Observation of $e^{+} e^{-} \to η h_{c}$ at center-of-mass energies from 4.085 to 4.600 GeV

Analysis of $D^{+} \to K ˉ^{0} e^{+} ν_{e}$ and $D^{+} \to π^{0} e^{+} ν_{e}$ Semileptonic Decays

Measurement of $e^{+} e^{-} \to π^{+} π^{-} ψ (3686)$ from 4.008 to 4.600 $\sim$ GeV and observation of a charged structure in the $π^{\pm} ψ (3686)$ mass spectrum

Evidence for the singly-Cabibbo-suppressed decay $Λ_{c}^{+} \to p η$ and search for $Λ_{c}^{+} \to p π^{0}$

Cross section measurements of $e^{+} e^{-} \to p p ˉ π^{0}$ at center-of-mass energies between 4.008 and 4.600 GeV

Measurement of higher-order multipole amplitudes in $ψ (3686) \to γ χ_{c 1, 2}$ with $χ_{c 1, 2} \to γ J / ψ$ and search for the transition $η_{c} (2 S) \to γ J / ψ$

Observation of the helicity-selection-rule suppressed decay of the $χ_{c 2}$ charmonium state

Measurement of the Absolute Branching Fraction for $Λ_{c}^{+} \to Λ μ^{+} ν_{μ}$

Observation of $Λ_{c}^{+} \to n K_{S}^{0} π^{+}$

Precise measurement of the $e^{+} e^{-} \to π^{+} π^{-} J / ψ$ cross section at center-of-mass energies from 3.77 to 4.60 GeV

Evidence of Two Resonant Structures in $e^{+} e^{-} \to π^{+} π^{-} h_{c}$

Observation of $J / ψ \to γ η π^{0}$