Observation of B0-->pi0pi0.
We report the observation of the decay B0-->pi(0)pi(0), using a 253 fb(-1) data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB e(+)e(-) collider. The measured branching fraction is B(B0-->pi(0)pi(0))=(2.3(+0.4+0.2)(-0.5-0.3))x10(-6), with a significance of 5.8 standard deviations including systematic uncertainties. We also make a measurement of the direct CP violating asymmetry in this mode.
Chao
Y
Y
Department of Physics, National Taiwan University, Taipei.
Chang
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Aihara
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Akemoto
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Chuvikov
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Dalseno
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Danilov
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Eidelman
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Eiges
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Fang
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Flanagan
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Fratina
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Furukawa
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Gabyshev
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Garmash
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Gershon
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Gokhroo
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Haba
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Hastings
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Hayasaka
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Hayashii
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Hoshi
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Hou
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Iijima
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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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Kang
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Kapusta
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Kataoka
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Katayama
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Kawai
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Kawasaki
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Khan
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Kichimi
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Kikutani
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Kim
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Kinoshita
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Koiso
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Korpar
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Krokovny
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Kumar
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Kuo
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Kuzmin
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Kwon
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Lange
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Leder
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Lesiak
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Lin
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Mandl
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Matsumoto
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Michizono
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Mitaroff
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Miyabayashi
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Miyake
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Miyata
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Mohapatra
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Mori
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Nagamine
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Nagasaka
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Nakadaira
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Nakamura
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Nakao
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Natkaniec
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Nishida
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Nitoh
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Noguchi
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Nozaki
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Ogawa
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Ohshima
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Ohuchi
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Oide
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Okabe
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Okuno
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Olsen
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Ostrowicz
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Ozaki
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Park
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Park
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Parslow
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Peak
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Piilonen
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Sagawa
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Sakai
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Sato
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Schietinger
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Schneider
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Schümann
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Schwartz
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Senyo
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Sevior
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Shwartz
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Stamen
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Staric
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Suzuki
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Yamamoto
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Yamauchi
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Yokoyama
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Yoshida
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