K. Chen

activity

20012026

most citedObservation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays

2k citations · 6.6k across the 87 of their papers we have counts for

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Showing 2008Show all

5 papers · 1 filter

hep-ex2008★ 23 cited

Search for a light pseudoscalar particle in the decay $K_{L}^{0} \to π^{0} π^{0} X$

Y. C. Tung, Y. B. Hsiung, M. L. Wu +59

We performed a search for a light pseudoscalar particle $X$ in the decay $K_{L}^{0} - > p i 0 p i 0 X$ , $X - > γ γ$ with the E391a detector at KEK. Such a particle with a mass of 214.3 MeV/ $c^{2}$ wa…

hep-ex2008★ 71 cited

Observation of an enhancement in $e^{+} e^{-} \to Υ (1 S) π^{+} π^{-}$ , $Υ (2 S) π^{+} π^{-}$ , and $Υ (3 S) π^{+} π^{-}$ production around $s = 10.89$ GeV at Belle

K. -F. Chen

We measure the production cross sections for $e^{+} e^{-} \to Υ (1 S) π^{+} π^{-}$ , $Υ (2 S) π^{+} π^{-}$ , and $Υ (3 S) π^{+} π^{-}$ as a function of $s$ between 10.83 GeV and 11.02 GeV. The data consis…

hep-ex2008★ 71 cited

Observation of an enhancement in e+e- to Upsilon(1S)pi+pi-, Upsilon(2S)pi+pi-, and Upsilon(3S)pi+pi- production near sqrt{s}=10.89 GeV at Belle

The Belle Collaboration, K. -F. Chen, W. -S. Hou

We measure the production cross sections for e+e- -> Upsilon(1S)pi+pi-, Upsilon(2S)pi+pi-, and Upsilon(3S)pi+pi- as a function of sqrt{s} between 10.83 GeV and 11.02 GeV. The data…

hep-ex2008★ 78 cited

Measurement of CP asymmetry in Cabibbo suppressed D0 decays

M. Staric

We measure the CP-violating asymmetries in decays to the D0 -> K+K- and D0 -> pi+pi- CP eigenstates using 540 fb^{-1} of data collected with the Belle detector at or near the Upsil…

hep-ex2008★ 1 cited

The anomalous Upsilon(1S)pi+pi- and Upsilon(2S)pi+pi- production near the Upsilon(5S) resonance

K. -F. Chen

We report the study of e+e- -> Upsilon(1S)pi+pi-, Upsilon(2S)pi+pi-, Upsilon(3S)pi+pi-, and Upsilon(1S)K+K-, near the peak of the Upsilon(5S) resonance. The results are based on a…

Search for a light pseudoscalar particle in the decay KL0​→π0π0X

Observation of an enhancement in e+e−→Υ(1S)π+π−, Υ(2S)π+π−, and Υ(3S)π+π− production around s​=10.89 GeV at Belle

Observation of an enhancement in e+e- to Upsilon(1S)pi+pi-, Upsilon(2S)pi+pi-, and Upsilon(3S)pi+pi- production near sqrt{s}=10.89 GeV at Belle

Measurement of CP asymmetry in Cabibbo suppressed D0 decays

The anomalous Upsilon(1S)pi+pi- and Upsilon(2S)pi+pi- production near the Upsilon(5S) resonance

Search for a light pseudoscalar particle in the decay $K_{L}^{0} \to π^{0} π^{0} X$

Observation of an enhancement in $e^{+} e^{-} \to Υ (1 S) π^{+} π^{-}$ , $Υ (2 S) π^{+} π^{-}$ , and $Υ (3 S) π^{+} π^{-}$ production around $s = 10.89$ GeV at Belle