Observation of Large Violation in the Neutral Meson System

K Abe, R Abe, I Adachi, BS Ahn, H Aihara, M Akatsu… - Physical review …, 2001 - APS
We present a measurement of the standard model CP violation parameter sin 2 φ 1 based
on a 29.1 fb− 1 data sample collected at the ϒ (4 S) resonance with the Belle detector at the …

Study of decays

K Abe, T Abe, I Adachi, H Aihara, M Akatsu, Y Asano… - Physical Review D, 2004 - APS
We report the results of a study of charged B decays to the D±π∓ π∓ and D*±π∓ π∓ final
states using complete D (*) reconstruction. The contributions of two-body B→ D** π decays …

Observation of Double Production in Annihilation at

K Abe, R Abe, T Abe, I Adachi, BS Ahn, H Aihara… - Physical review …, 2002 - APS
We report the observation of prompt J/ψ via double cc production from the e+ e− continuum.
In this process one cc pair fragments into a J/ψ meson while the remaining pair either …

The metric properties of a novel non‐motor symptoms scale for Parkinson's disease: results from an international pilot study

…, K Sethi, F Stocchi, P Odin, W Ondo, K Abe… - Movement …, 2007 - Wiley Online Library
Non‐motor symptoms (NMS) in Parkinson's disease (PD) are common, significantly reduce
quality of life and at present there is no validated clinical tool to assess the progress or …

Prevalence of nonmotor symptoms in Parkinson's disease in an international setting; study using nonmotor symptoms questionnaire in 545 patients

…, RG Brown, Y Naidu, L Clayton, K Abe… - … : official journal of the …, 2007 - Wiley Online Library
2006, there was, no single instrument (questionnaire or scale) for attempting a comprehensive
assessment of the wide range of nonmotor symptoms (NMS) of Parkinson's disease (PD). …

Improved measurement of mixing-induced CP violation in the neutral B meson system

K Abe, T Abe, I Adachi, H Aihara, M Akatsu, Y Asano… - Physical Review D, 2002 - APS
We present an improved measurement of the standard model CP violation parameter sin 2
φ 1 (also known as sin 2 β) based on a sample of 85× 10 6 BB pairs collected at the Υ (4 S) …

Evidence for Mixing

M Starič, B Golob, K Abe, I Adachi, H Aihara… - Physical review …, 2007 - APS
We observe evidence for D 0− D 0 mixing by measuring the difference in the apparent lifetime
when a D 0 meson decays to the CP eigenstates K+ K− and π+ π− and when it decays to …

Observation of the Decay

K Abe, R Abe, I Adachi, BS Ahn, H Aihara, M Akatsu… - Physical review …, 2001 - APS
We report a search for the flavor-changing neutral current decay B→ K (*) l+ l− using a 29.1
fb− 1 data sample accumulated at the ϒ (4 S) resonance with the Belle detector at the KEKB …

A measurement of the branching fraction for the inclusive B→ Xsγ decays with the Belle detector

K Abe, I Adachi, BS Ahn, H Aihara, M Akatsu… - Physics Letters B, 2001 - Elsevier
We have measured the branching fraction of the inclusive radiative B meson decay B→X s γ
to be Br(B→X s γ)=(3.36±0.53(stat)±0.42(sys) +0.50 −0.54 (th))×10 −4 . The result is based …

Measurements of branching fractions and decay amplitudes in B→ J/ψK∗ decays

K Abe, T Abe, I Adachi, BS Ahn, H Aihara, M Akatsu… - Physics Letters B, 2002 - Elsevier
The branching fractions and the decay amplitudes of B→J/ψK ∗ decays are measured in a
29.4 fb −1 data sample collected with the Belle detector at the KEKB electron–positron collider…