Measurement of the lifetime difference in D0 meson decays.
We report a measurement of the D0-D macro(0) mixing parameter y(CP) using 23.4 fb(-1) of data collected near the Upsilon(4S) resonance with the Belle detector at KEKB. y(CP) is measured from the lifetime difference of D0 mesons decaying into the K(-)pi(+) state and the CP-even eigenstate K(-)K(+). We find y(CP) = (-0.5+/-1.0(+0.7)(-0.8))x10(-2), where the first error is statistical and the second is systematic, corresponding to a 95% confidence interval -0.030<y(CP)<0.020.
Abe
K
K
High Energy Accelerator Research Organization (KEK), Tsukuba.
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Abe
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Abe
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Adachi
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Ahn
Byoung Sup
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Aihara
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Akatsu
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Asano
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Dong
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Eidelman
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Fang
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Fujii
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Fukunaga
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Fukushima
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Gabyshev
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Gershon
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Gordon
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Guo
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Haba
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Hamasaki
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Hanagaki
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Handa
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Hastings
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Hazumi
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Ikeda
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Inami
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Ishikawa
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Itoh
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Iwasaki
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Iwasaki
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Jang
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Kim
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Heejong
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Hyunwoo
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Kinoshita
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Kobayashi
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Konishi
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Kulasiri
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Kwon
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MacNaughton
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Marlow
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Pakhlov
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Takahashi
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