R. A. Briere

activity

20122026

e^{+} e^{-} \to π^{+} π^{-}

Cross Section between 600 and 900 MeV Using Initial State Radiation

253 citations · 562 across the 20 of their papers we have counts for

collaborators

20 papers

hep-ex2026

Search for the charged lepton flavour violating decay $η^{'} \to e μ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +765

Based on $(8998 \pm 40) \times 1 0^{6}$ $J / ψ$ events collected in $e^{+} e^{-}$ collisions at $s = 3.097$ GeV with the BESIII detector, we present a search for the charged lepton flavou…

hep-ex2026

Proof of principle for nucleon polarization measurement at BESIII

BESIII Collaboration, M. Ablikim, M. N. Achasov +754

A novel technique for measuring the spin polarization of final-state nucleons in a general-purpose spectrometer is validated. Using $10.09 \times 1 0^{9}$ $J / ψ$ events at BESIII, the…

hep-ex2026

Study of the $e^{+} e^{-} \to π^{+} π^{-} D_{s}^{+} D_{s}^{-}$ process from $s$ = 4.42 to 4.95 GeV at BESIII

BESIII Collaboration, M. Ablikim, M. N. Achasov +782

Based on $8.5 fb^{- 1}$ of $e^{+} e^{-}$ collision data collected at center-of-mass energies between 4.42 and 4.95 GeV with the BESIII detector at the BEPCII storage ring, we inves…

hep-ex2025

Measurement of the branching fractions of $D^{+} \to K^{+} K^{-} π^{+} π^{+} π^{-}$ , $ϕ π^{+} π^{+} π^{-}$ , $K_{S}^{0} K^{+} π^{+} π^{-} π^{0}$ , $K_{S}^{0} K^{+} η$ , and $K_{S}^{0} K^{+} ω$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +686

Using $20.3 fb^{- 1}$ of $e^{+} e^{-}$ collision data collected at a center-of-mass energy of 3.773 GeV with the BESIII detector operating at the BEPCII collider, the branching…

hep-ex2023

Helicity amplitude analysis of $χ_{c J} \to ϕϕ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +567

Using (447.9 $\pm$ 2.3) million $ψ$ (3686) events collected with the BESIII detector, the decays of $χ_{c J} \to ϕϕ$ ( $J$ =0, 1, 2) have been studied via the decay $ψ(3686)\ri…

hep-ex2022★ 42 cited

Search for an axion-like particle in radiative $J / ψ$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +588

We search for an axion-like particle (ALP) $a$ through the process $ψ (3686) \to π^{+} π^{-} J / ψ$ , $J / ψ \to γ a$ , $a \to γ γ$ in a data sample of $(2.71 \pm 0.01) \times 1 0^{9}$ …

hep-ex2022★ 6 cited

Search for $X (3872) \to π^{0} χ_{c 0}$ and $X (3872) \to π π χ_{c 0}$ at BESIII

BESIII Collaboration, M. Ablikim, M. N. Achasov +556

Using 9.9 fb $^{- 1}$ of $e^{+} e^{-}$ collision data collected by the BESIII detector at center-of-mass energies between 4.15 and 4.30 GeV, we search for the processes $e^+e^-\toγX(3872)…

hep-ex2021★ 1 cited

Measurement of the $e^{+} e^{-} \to Σ^{0} Σ ˉ^{0}$ cross sections at center-of-mass energies from $2.3864$ to $3.0200$ GeV

M. Ablikim, M. N. Achasov, P. Adlarson +484

The Born cross sections of $e^{+} e^{-} \to Σ^{0} Σ ˉ^{0}$ are measured at center-of-mass energies from $2.3864$ to $3.0200$ GeV using data samples with an integrated luminosity of…

hep-ex2021★ 1 cited

Measurement of the branching fraction for $ψ (3686) \to ω K_{S}^{0} K_{S}^{0}$

M. Ablikim, M. N. Achasov, P. Adlarson +531

Analyzing $(448.1 \pm 2.9) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector at the BEPCII collider, the $ψ (3686) \to ω K_{S}^{0} K_{S}^{0}$ decay is observed for the first…

hep-ex2019★ 10 cited

Search for the decay $η^{'} \to γ γ η$

M. Ablikim, M. N. Achasov, P. Adlarson +479

Using a data sample of $1.31 \times 1 0^{9} J / ψ$ events collected with the BESIII detector, a search for $η^{'} \to γ γ η$ via $J / ψ \to γ η^{'}$ is performed for the first time. No significant $η…

hep-ex2019★ 1 cited

Observation of $χ_{c J} \to 4 K_{S}^{0}$

M. Ablikim, M. N. Achasov, S. Ahmed +461

By analyzing $(448.1 \pm 2.9) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector operating at the BEPCII collider, the decays of $χ_{c J} \to 4 K_{S}^{0}$ ( $J = 0, 1, 2$ ) are obser…

hep-ex2018★ 18 cited

Study of $η (1475)$ and $X (1835)$ in radiative $J / ψ$ decays to $γ ϕ$

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

The decay $J / ψ \to γ γ ϕ$ is studied using a sample of $1.31 \times 1 0^{9}$ $J / ψ$ events collected with the BESIII detector. Two structures around 1475 MeV/c $^{2}$ and 1835 MeV/c…

hep-ex2017★ 20 cited

Measurement of $e^{+} e^{-} \to π^{0} π^{0} ψ (3686)$ at $s$ from 4.009 to 4.600 GeV and observation of a neutral charmoniumlike structure

M. Ablikim, M. N. Achasov, S. Ahmed +436

Using $e^{+} e^{-}$ collision data collected with the BESIII detector at the BEPCII collider corresponding to an integrated luminosity of 5.2 $f b^{- 1}$ at center-of-mass energies ($…

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★ 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★ 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-ex2015★ 253 cited

Measurement of the $e^{+} e^{-} \to π^{+} π^{-}$ Cross Section between 600 and 900 MeV Using Initial State Radiation

M. Ablikim, M. N. Achasov, X. C. Ai +398

We extract the $e^{+} e^{-} \to π^{+} π^{-}$ cross section in the energy range between 600 and 900 MeV, exploiting the method of initial state radiation. A data set with an integrated…

hep-ex2015★ 61 cited

Observation of the Dalitz Decay $η^{'} \to γ e^{+} e^{-}$

M. Ablikim, M. N. Achasov, X. C. Ai +410

We report the first observation of the Dalitz decay $η^{'} \to γ e^{+} e^{-}$ , based on a data sample of 1.31 billion $J / ψ$ events collected with the BESIII detector. The $η^{'}$ mesons are pr…

hep-ex2013★ 16 cited

Search for the Lepton Flavor Violation Process $J / ψ \to e μ$ at BESIII

BESIII Collaboration, M. Ablikim, M. N. Achasov +361

We search for the lepton-flavor-violating decay of the $J / ψ$ into an electron and a muon using $(225.3 \pm 2.8) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector at the B…

hep-ex2012★ 16 cited

Measurement of $χ_{c J}$ decaying into $p n ˉ π^{-}$ and $p n ˉ π^{-} π^{0}$

M. Ablikim, M. N. Achasov, O. Albayrak +345

Using a data sample of $1.06 \times 1 0^{8}$ $\psip$ events collected with the BESIII detector in 2009, the branching fractions of $χ_{c J} \to p n ˉ π^{-}$ and $χ_{cJ}\to p\bar{n}π…

Search for the charged lepton flavour violating decay η′→eμ

Proof of principle for nucleon polarization measurement at BESIII

Study of the e+e−→π+π−Ds+​Ds−​ process from s​ = 4.42 to 4.95 GeV at BESIII

Measurement of the branching fractions of D+→K+K−π+π+π−, ϕπ+π+π−, KS0​K+π+π−π0, KS0​K+η, and KS0​K+ω decays

Helicity amplitude analysis of χcJ​→ϕϕ

Search for an axion-like particle in radiative J/ψ decays

Search for X(3872)→π0χc0​ and X(3872)→ππχc0​ at BESIII

Measurement of the e+e−→Σ0Σˉ0 cross sections at center-of-mass energies from 2.3864 to 3.0200 GeV

Measurement of the branching fraction for ψ(3686)→ωKS0​KS0​

Search for the decay η′→γγη

Observation of χcJ​→4KS0​

Study of η(1475) and X(1835) in radiative J/ψ decays to γϕ

Measurement of e+e−→π0π0ψ(3686) at s​ from 4.009 to 4.600 GeV and observation of a neutral charmoniumlike structure

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

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

Measurement of the e+e−→π+π− Cross Section between 600 and 900 MeV Using Initial State Radiation

Observation of the Dalitz Decay η′→γe+e−

Search for the Lepton Flavor Violation Process J/ψ→eμ at BESIII

Measurement of χcJ​ decaying into pnˉπ− and pnˉπ−π0

Search for the charged lepton flavour violating decay $η^{'} \to e μ$

Study of the $e^{+} e^{-} \to π^{+} π^{-} D_{s}^{+} D_{s}^{-}$ process from $s$ = 4.42 to 4.95 GeV at BESIII

Measurement of the branching fractions of $D^{+} \to K^{+} K^{-} π^{+} π^{+} π^{-}$ , $ϕ π^{+} π^{+} π^{-}$ , $K_{S}^{0} K^{+} π^{+} π^{-} π^{0}$ , $K_{S}^{0} K^{+} η$ , and $K_{S}^{0} K^{+} ω$ decays

Helicity amplitude analysis of $χ_{c J} \to ϕϕ$

Search for an axion-like particle in radiative $J / ψ$ decays

Search for $X (3872) \to π^{0} χ_{c 0}$ and $X (3872) \to π π χ_{c 0}$ at BESIII

Measurement of the $e^{+} e^{-} \to Σ^{0} Σ ˉ^{0}$ cross sections at center-of-mass energies from $2.3864$ to $3.0200$ GeV

Measurement of the branching fraction for $ψ (3686) \to ω K_{S}^{0} K_{S}^{0}$

Search for the decay $η^{'} \to γ γ η$

Observation of $χ_{c J} \to 4 K_{S}^{0}$

Study of $η (1475)$ and $X (1835)$ in radiative $J / ψ$ decays to $γ ϕ$

Measurement of $e^{+} e^{-} \to π^{0} π^{0} ψ (3686)$ at $s$ from 4.009 to 4.600 GeV and observation of a neutral charmoniumlike structure

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

Observation of $e^{+} e^{-} \to η h_{c}$ at center-of-mass energies from 4.085 to 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 $η_{c} (2 S) \to γ J / ψ$

Measurement of the $e^{+} e^{-} \to π^{+} π^{-}$ Cross Section between 600 and 900 MeV Using Initial State Radiation

Observation of the Dalitz Decay $η^{'} \to γ e^{+} e^{-}$

Search for the Lepton Flavor Violation Process $J / ψ \to e μ$ at BESIII

Measurement of $χ_{c J}$ decaying into $p n ˉ π^{-}$ and $p n ˉ π^{-} π^{0}$