Jc Chen

activity

19982019

most citedDesign and Construction of the BESIII Detector

1.2k citations · 13k across the 243 of their papers we have counts for

collaborators

Showing 2004 · hep-exShow all

16 papers · 2 filters

hep-ex2004★ 40 cited

Measurement of Cross Sections for $D^{0} D ˉ^{0}$ and $D^{+} D^{-}$ Production in $e^{+} e^{-}$ Annihilation at $s = 3.773$ GeV

BES Collaboration

The cross sections for $D^{0} D ˉ^{0}$ and $D^{+} D^{-}$ production at 3.773 GeV have been measured with BES-II detector at BEPC. These measurements are made by analyzing a data sample…

hep-ex2004★ 30 cited

Direct Measurement of the Pseudoscalar Decay Constant fD+

BES Collaboration

The absolute branching fraction of $D^{+} \to μ^{+} ν$ has been directly measured by an analysis of a data sample of about 33 $p b^{- 1}$ collected around $s = 3.773$ GeV with…

hep-ex2004★ 37 cited

Direct Measurement of the Branching Fraction for the Decay of $D^{+} \to K ˉ^{0} e^{+} ν_{e}$ and Determination of $Γ (D^{0} \to K^{-} e^{+} ν_{e}) /Γ (D^{+} \to K ˉ^{0} e^{+} ν_{e})$

BES Collaboration

The absolute branching fraction for the decay $D^{+} \to K ˉ^{0} e^{+} ν_{e}$ is determined using $5321 \pm 149 \pm 160$ singly tagged $D^{-}$ sample from the data collected around 3.773 Ge…

hep-ex2004★ 5 cited

First observations of $ψ (2 S)$ and $χ_{c J} (1 P)$ decays to four-body final states $h^{+} h^{-} K_{S}^{0} K_{S}^{0}$

M. Ablikim

$χ_{c 0}$ , $χ_{c 1}$ , and $χ_{c 2}$ decays to $π^{+} π^{-} K_{S}^{0} K_{S}^{0}$ and $K^{+} K^{-} K_{S}^{0} K_{S}^{0}$ , as well as $ψ (2 S)$ decay to $π^{+} π^{-} K_{S}^{0} K_{S}^{0}$ are presented. The branching fractions of these…

hep-ex2004★ 10 cited

Search for the decay B0 --> J/psi gamma

BABAR collaboration

We present the results of a search for the radiative decay B0 --> J/psi gamma in a data set containing 123 million Y(4S)--> B B-bar decays, collected by the BABAR detector at the P…

hep-ex2004★ 19 cited

Measurements of $ψ (2 S)$ decays into $ϕ π^{0}$ , $ϕ η$ , $ϕ η^{^{'}}$ , $ω η$ , and $ω η^{^{'}}$

BES Collaboration

Decays of the $ψ (2 S)$ into Vector plus Pseudoscalar meson final states have been studied with 14 million $ψ (2 S)$ events collected with the BESII detector. Branching fractions of $ψ…

hep-ex2004★ 97 cited

The $σ$ pole in $J / ψ \to ω π^{+} π^{-}$

BES Collaboration

Using a sample of 58 million $J / ψ$ events recorded in the BESII detector, the decay $J / ψ \to ω π^{+} π^{-}$ is studied. There are conspicuous $ω f_{2} (1270)$ and $b_{1} (1235) π$ signals. At lo…

hep-ex2004★ 64 cited

Direct Measurements of the Branching Fractions for $D^{0} \to K^{-} e^{+} ν_{e}$ and $D^{0} \to π^{-} e^{+} ν_{e}$ and Determinations of the Form Factors $f_{+}^{K} (0)$ and $f_{+}^{π} (0)$

BES Collaboration

The absolute branching fractions for the decays $D^{0} \to K^{-} e^{+} ν_{e}$ and $D^{0} \to π^{-} e^{+} ν_{e}$ are determined using $7584 \pm 198 \pm 341$ singly tagged $D ˉ^{0}$ sample from the dat…

hep-ex2004★ 28 cited

Search for the Lepton Flavor Violation Processes $J / ψ \to$ $μτ$ and $e τ$

BES collaboration

The lepton flavor violation processes $J / ψ \to μτ$ and $e τ$ are searched for using a sample of 5.8 $\times 1 0^{7}$ $J / ψ$ events collected with the BESII detector. Zero and one candidat…

hep-ex2004★ 28 cited

A Study of J/psi-->gamma gamma V(rho,phi) Decays with the BESII Detector

BES Collaboration

Using a sample of $58 \times 1 0^{6}$ $J / ψ$ events collected with the BESII detector, radiative decays $J / ψ \to γ γ V$ , where $V = ρ$ or $ϕ$ , are studied. A resonance around 1420 MeV/c $^{2}$ (…

hep-ex2004★ 56 cited

B Meson Decays to eta(')K*, eta(')rho,eta(')pi0, omegapi0, and phipi0

The BABAR Collaboration, B. Aubert

We present measurements of the branching fractions and charge asymmetries (where appropriate) of two-body B decays to eta(')K*, eta(')rho, eta(')pi0, omegapi0, and phipi0. The data…

hep-ex2004★ 68 cited

Determination of the Branching Fraction for B --> Xc l nu Decays and of |Vcb| from Hadronic-Mass and Lepton-Energy Moments

BABAR Collaboration, B. Aubert, R. Barate +1

We determine the inclusive B --> Xc l nu branching fraction, the CKM matrix element |Vcb|, and other heavy-quark parameters from a simultaneous fit to moments of the hadronic-mass…

hep-ex2004★ 47 cited

Study of the decay B0(B0bar)-->rho+rho-, and constraints on the CKM angle alpha

B. Aubert

Using a data sample of 89 million Y(4s)-->B0B0bar decays collected with the BaBar detector at the PEP-II asymmetric B Factory at SLAC, we measure the B0(B0bar)-->rho+rho- branching…

hep-ex2004★ 24 cited

Measurement of the Time-Dependent CP Asymmetry in the B0 --> Phi K0 Decay

B. Aubert, BABAR Collaboration

We present a measurement of the time-dependent CP asymmetry for the neutral B-meson decay B0 --> Phi K0. We use a sample of approximately 114 million B-meson pairs taken at the Ups…

hep-ex2004★ 27 cited

ψ(2S) Decays into $\J$ plus Two Photons

BES collaboration

Using $γγJ/ψ, J/ψ\ra e^+ e^-$ and $μ^{+} μ^{-}$ events from a sample of $14.0 \times 1 0^{6}$ $\psip$ decays collected with the BESII detector, the branching fractions for $\psip\ra π^0\J$…

hep-ex2004★ 70 cited

Observation of the Decay B=> J/psi eta K and Search for X(3872)=> J/psi eta

B. Aubert

We report the observation of the $B$ meson decay $B^{\pm} \to J / ψ η K^{\pm}$ and evidence for the decay $B^{0} \to J / ψ η K_{S}^{0}$ , using {90} million $B B ba r$ events collected at the $\ensuremath…

Measurement of Cross Sections for D0Dˉ0 and D+D− Production in e+e− Annihilation at s​=3.773 GeV

Direct Measurement of the Pseudoscalar Decay Constant fD+

Direct Measurement of the Branching Fraction for the Decay of D+→Kˉ0e+νe​ and Determination of Γ(D0→K−e+νe​)/Γ(D+→Kˉ0e+νe​)

First observations of ψ(2S) and χcJ​(1P) decays to four-body final states h+h−KS0​KS0​

Search for the decay B0 --> J/psi gamma

Measurements of ψ(2S) decays into ϕπ0, ϕη, ϕη′, ωη, and ωη′

The σ pole in J/ψ→ωπ+π−

Direct Measurements of the Branching Fractions for D0→K−e+νe​ and D0→π−e+νe​ and Determinations of the Form Factors f+K​(0) and f+π​(0)

Search for the Lepton Flavor Violation Processes J/ψ→ μτ and eτ

A Study of J/psi-->gamma gamma V(rho,phi) Decays with the BESII Detector

B Meson Decays to eta(')K*, eta(')rho,eta(')pi0, omegapi0, and phipi0

Determination of the Branching Fraction for B --> Xc l nu Decays and of |Vcb| from Hadronic-Mass and Lepton-Energy Moments

Study of the decay B0(B0bar)-->rho+rho-, and constraints on the CKM angle alpha

Measurement of the Time-Dependent CP Asymmetry in the B0 --> Phi K0 Decay

ψ(2S) Decays into $\J$ plus Two Photons

Observation of the Decay B=> J/psi eta K and Search for X(3872)=> J/psi eta

Measurement of Cross Sections for $D^{0} D ˉ^{0}$ and $D^{+} D^{-}$ Production in $e^{+} e^{-}$ Annihilation at $s = 3.773$ GeV

Direct Measurement of the Branching Fraction for the Decay of $D^{+} \to K ˉ^{0} e^{+} ν_{e}$ and Determination of $Γ (D^{0} \to K^{-} e^{+} ν_{e}) /Γ (D^{+} \to K ˉ^{0} e^{+} ν_{e})$

First observations of $ψ (2 S)$ and $χ_{c J} (1 P)$ decays to four-body final states $h^{+} h^{-} K_{S}^{0} K_{S}^{0}$

Measurements of $ψ (2 S)$ decays into $ϕ π^{0}$ , $ϕ η$ , $ϕ η^{^{'}}$ , $ω η$ , and $ω η^{^{'}}$

The $σ$ pole in $J / ψ \to ω π^{+} π^{-}$

Direct Measurements of the Branching Fractions for $D^{0} \to K^{-} e^{+} ν_{e}$ and $D^{0} \to π^{-} e^{+} ν_{e}$ and Determinations of the Form Factors $f_{+}^{K} (0)$ and $f_{+}^{π} (0)$

Search for the Lepton Flavor Violation Processes $J / ψ \to$ $μτ$ and $e τ$