Observation of B+ --> chi(c0)K+. Abe K , Abe R , Adachi I , Ahn Byoung Sup , Aihara H , Akatsu M , Asano Y , Aso T , Aulchenko V , Aushev T , Bakich A M , Banas E , Behari S , Behera P K , Bondar A , Bozek A , Browder T E , Casey B C K , Chang P , Chao Y , Cheon B G , Chistov R , Choi Y , Dong L Y , Dragic J , Drutskoy A , Eidelman S , Enari Y , Fujii H , Fukunaga C , Fukushima M , Gabyshev N , Garmash A , Gordon A , Gotow K , Guo R , Haba J , Hamasaki H , Handa F , Hara K , Hara T , Hastings N C , Hayashii H , Hazumi M , Heenan E M , Higuchi I , Hirano H , Hojo T , Hokuue T , Hoshi Y , Hoshina K , Hou S R , Hou W-S , Hsu S-C , Huang H-C , Igarashi Y , Iijima T , Ikeda H , Inami K , Ishikawa A , Ishino H , Itoh R , Iwasaki H , Iwasaki Y , Jackson D J , Jang H K , Kagan R , Kaneko J , Kang J H , Kang J S , Kapusta P , Katayama N , Kawai H , Kawamura N , Kawasaki T , Kichimi H , Kim D W , Kim Heejong , Kim H J , Kim H O , Kim Hyunwoo , Kim S K , Kinoshita K , Kobayashi S , Konishi H , Krokovny P , Kulasiri R , Kumar S , Kuzmin A , Kwon Y-J , Lange J S , Leder G , Lee S H , Liventsev D , Lu R-S , Marlow D , Matsubara T , Matsumoto S , Matsumoto T , Mikami Y , Miyabayashi K , Miyake H , Miyata H , Moloney G R , Moorhead G F , Mori S , Mori T , Nagamine T , Nagasaka Y , Nagashima Y , Nakadaira T , Nakano E , Nakao M , Nam J W , Natkaniec Z , Neichi K , Nishida S , Nitoh O , Noguchi S , Nozaki T , Ogawa S , Ohshima T , Okabe T , Okuno S , Olsen S L , Ostrowicz W , Ozaki H , Pakhlov P , Palka H , Park C S , Park C W , Park H , Park K S , Peak L S , Peters M , Piilonen L E , Rodriguez J L , Root N , Rozanska M , Rybicki K , Ryuko J , Sagawa H , Sakai Y , Sakamoto H , Satapathy M , Satpathy A , Schrenk S , Semenov S , Senyo K , Sevior M E , Shibuya H , Shwartz B , Stanic S , Sugi A , Sugiyama A , Sumisawa K , Sumiyoshi T , Suzuki K , Suzuki S , Suzuki S Y , Swain S K , Takahashi T , Takasaki F , Takita M , Tamai K , Tamura N , Tanaka J , Tanaka M , Tanaka Y , Taylor G N , Teramoto Y , Tomoto M , Tomura T , Tovey S N , Tsuboyama T , Tsukamoto T , Uehara S , Ueno K , Unno Y , Uno S , Ushiroda Y , Vahsen S E , Varvell K E , Wang C C , Wang C H , Wang J G , Wang M-Z , Watanabe Y , Won E , Yabsley B D , Yamada Y , Yamaga M , Yamaguchi A , Yamamoto H , Yamashita Y , Yamauchi M , Yanaka S , Yashima J , Yokoyama M , Yoshida K , Yuan Y , Yusa Y , Zhang C C , Zhang J , Zhao H W , Zheng Y , Zhilich V , Zontar D , Null Null Physical review letters（2002）
摘要
Using a sample of 31.3x10(6) BB pairs collected with the Belle detector at the Upsilon(4S) resonance, we make the first observation of the charged B meson decay to chi(c0) and a charged kaon. The measured branching fraction is B(B+-->chi(c0)K+) = (6.0(+2.1)(-1.8)+/-1.1)x10(-4), where the first error is statistical, and the second is systematic.
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