R. Ogata

activity

20052016

most citedExperimental study of the decay

K_{L}^{0} \to π^{0} ν ν ˉ

111 citations · 173 across the 6 of their papers we have counts for

collaborators

6 papers

hep-ex2016★ 20 cited

A new search for the $K_{L} \to π^{0} ν ν$ and $K_{L} \to π^{0} X^{0}$ decays

J. K. Ahn, K. Y. Baek, S. Banno +87

We searched for the $C P$ -violating rare decay of neutral kaon, $K_{L} \to π^{0} ν ν$ , in data from the first 100 hours of physics running in 2013 of the J-PARC KOTO experimen…

hep-ex2011★ 15 cited

Study of the K0(L) --> pi0 pi0 nu nu-bar decay

E391a Collaboration, R. Ogata, S. Suzuki +67

The rare decay K0(L) --> pi0 pi0 nu nu-bar was studied with the E391a detector at the KEK 12-GeV proton synchrotron. Based on 9.4 x 10^9 K0L decays, an upper limit of 8.1 x 10^{-7}…

hep-ex2010★ 4 cited

Search for the decay $K_{L}^{0} \to 3 γ$

Y. C. Tung, Y. B. Hsiung, J. K. Ahn +66

We performed a search for the decay $K_{L}^{0} \to 3 γ$ with the E391a detector at KEK. In the data accumulated in 2005, no event was observed in the signal region. Based on the…

hep-ex2009★ 111 cited

Experimental study of the decay $K_{L}^{0} \to π^{0} ν ν ˉ$

The E391a Collaboration, J. K. Ahn

The first dedicated search for the rare neutral-kaon decay $K_{L}^{0} \to π^{0} ν ν ˉ$ has been carried out in the E391a experiment at the KEK 12-GeV proton synchrotron. The final upper li…

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…

cond-mat.dis-nn2005

Packing and percolation of poly-disperse discs and spheres

Takashi Odagaki, Tsuyoshi Okubo, Ryusei Ogata +1

For the binary discs packed in two dimensions, the packing fraction of disc assembly becomes lower than that of the monodisperse system when the size ratio is close to unity. We sh…

A new search for the KL​→π0νν and KL​→π0X0 decays

Study of the K0(L) --> pi0 pi0 nu nu-bar decay

Search for the decay KL0​→3γ

Experimental study of the decay KL0​→π0ννˉ

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

Packing and percolation of poly-disperse discs and spheres

A new search for the $K_{L} \to π^{0} ν ν$ and $K_{L} \to π^{0} X^{0}$ decays

Search for the decay $K_{L}^{0} \to 3 γ$

Experimental study of the decay $K_{L}^{0} \to π^{0} ν ν ˉ$

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