Observation of B+-->K1(1270)+gamma.
Observation of B+-->K1(1270)+gamma.
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DOI：
10.1103/physrevlett.94.111802
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发表时间：
2004-08
影响因子：
8.6
通讯作者：
H. Yang;M. Nakao;K. Abe;H. Aihara;Y. Asano;T. Aushev;S. Bahinipati;A. Bakich;Y. Ban;I. Bedny;U. Bitenc;I. Bizjak;S. Blyth;A. Bondar;A. Bozek;M. Bračko;J. Brodzicka;T. Browder;M. Chang;P. Chang;Y. Chao;A. Chen;W. Chen;B. Cheon;R. Chistov;S. Choi;Y. Choi;Y. Choi;A. Chuvikov;S. Cole;J. Dalseno;M. Dash;S. Eidelman;Y. Enari;F. Fang;N. Gabyshev;A. Garmash;T. Gershon;G. Gokhroo;B. Golob;J. Haba;K. Hayasaka;H. Hayashii;M. Hazumi;L. Hinz;T. Hokuue;Y. Hoshi;Y. Hsiung;T. Iijima;A. Imoto;K. Inami;Y. Iwasaki;J. Kang;J. Kang;S. Kataoka;N. Katayama;H. Kawai;T. Kawasaki;H. Khan;H. Kichimi;H. Kim;J. Kim;S. Kim;S. Kim;T. H. Kim;K. Kinoshita;S. Korpar;P. Krokovny;C. Kuo;A. Kuzmin;Y. Kwon;J. Lange;G. Leder;S. Lee;T. Lesiak;J. Li;S. Lin;G. Majumder;T. Matsumoto;A. Matyja;W. Mitaroff;K. Miyabayashi;H. Miyake;H. Miyata;R. Mizuk;T. Nagamine;Y. Nagasaka;E. Nakano;Z. Natkaniec;S. Nishida;O. Nitoh;S. Ogawa;T. Ohshima;T. Okabe;S. Okuno;S. Olsen;W. Ostrowicz;P. Pakhlov;H. Palka;C. Park;N. Parslow;R. Pestotnik;L. Piilonen;M. Rozanska;H. Sagawa;Y. Sakai;N. Sato;T. Schietinger;O. Schneider;J. Schümann;C. Schwanda;A. Schwartz;R. Seuster;H. Shibuya;A. Somov;N. Soni;R. Stamen;S. Stanič;M. Starič;K. Sumisawa;T. Sumiyoshi;S. Suzuki;S. Suzuki;O. Tajima;F. Takasaki;N. Tamura;M. Tanaka;G. Taylor;Y. Teramoto;X. Tian;T. Tsukamoto;S. Uehara;T. Uglov;K. Ueno;S. Uno;Y. Ushiroda;G. Varner;K. Varvell;S. Villa;C. H. Wang;M. Wang;M. Watanabe;A. Yamaguchi;Y. Yamashita;M. Yamauchi;Y. Yuan;L. Zhang;Z. Zhang;V. Zhilich;D. Žontar;D. Zürcher
中科院分区：
文献类型：
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作者：
H. Yang;M. Nakao;K. Abe;H. Aihara;Y. Asano;T. Aushev;S. Bahinipati;A. Bakich;Y. Ban;I. Bedny;U. Bitenc;I. Bizjak;S. Blyth;A. Bondar;A. Bozek;M. Bračko;J. Brodzicka;T. Browder;M. Chang;P. Chang;Y. Chao;A. Chen;W. Chen;B. Cheon;R. Chistov;S. Choi;Y. Choi;Y. Choi;A. Chuvikov;S. Cole;J. Dalseno;M. Dash;S. Eidelman;Y. Enari;F. Fang;N. Gabyshev;A. Garmash;T. Gershon;G. Gokhroo;B. Golob;J. Haba;K. Hayasaka;H. Hayashii;M. Hazumi;L. Hinz;T. Hokuue;Y. Hoshi;Y. Hsiung;T. Iijima;A. Imoto;K. Inami;Y. Iwasaki;J. Kang;J. Kang;S. Kataoka;N. Katayama;H. Kawai;T. Kawasaki;H. Khan;H. Kichimi;H. Kim;J. Kim;S. Kim;S. Kim;T. H. Kim;K. Kinoshita;S. Korpar;P. Krokovny;C. Kuo;A. Kuzmin;Y. Kwon;J. Lange;G. Leder;S. Lee;T. Lesiak;J. Li;S. Lin;G. Majumder;T. Matsumoto;A. Matyja;W. Mitaroff;K. Miyabayashi;H. Miyake;H. Miyata;R. Mizuk;T. Nagamine;Y. Nagasaka;E. Nakano;Z. Natkaniec;S. Nishida;O. Nitoh;S. Ogawa;T. Ohshima;T. Okabe;S. Okuno;S. Olsen;W. Ostrowicz;P. Pakhlov;H. Palka;C. Park;N. Parslow;R. Pestotnik;L. Piilonen;M. Rozanska;H. Sagawa;Y. Sakai;N. Sato;T. Schietinger;O. Schneider;J. Schümann;C. Schwanda;A. Schwartz;R. Seuster;H. Shibuya;A. Somov;N. Soni;R. Stamen;S. Stanič;M. Starič;K. Sumisawa;T. Sumiyoshi;S. Suzuki;S. Suzuki;O. Tajima;F. Takasaki;N. Tamura;M. Tanaka;G. Taylor;Y. Teramoto;X. Tian;T. Tsukamoto;S. Uehara;T. Uglov;K. Ueno;S. Uno;Y. Ushiroda;G. Varner;K. Varvell;S. Villa;C. H. Wang;M. Wang;M. Watanabe;A. Yamaguchi;Y. Yamashita;M. Yamauchi;Y. Yuan;L. Zhang;Z. Zhang;V. Zhilich;D. Žontar;D. Zürcher
我们报道了在KEKB e+e对撞机上用Belle探测器的Upsilon(4S)共振获得的140FB(-1)数据样本对辐射衰变B+-->；K1(1270)(+)伽马的观测结果。我们发现支化分数为B(B+-->；K1(1270)(+)gamma)=(4.3+/-0.9(stat.)+/-0.9(syst.))x10(-5)，其显著性为7.3sigma。我们没有发现B+-->；K1(1400)(+)伽马的显著信号，并且在1GeV/c(2)质量范围内设定了上限B(B+->；K1(1400)(+)伽马)K+pi+pi-伽马和B0-->；K0pi+pi-伽马
We report the observation of the radiative decay B+-->K1(1270)(+) gamma using a data sample of 140 fb(-1) taken at the Upsilon(4S) resonance with the Belle detector at the KEKB e+e- collider. We find the branching fraction to be B(B+-->K1(1270)(+)gamma)=(4.3+/-0.9(stat.)+/-0.9(syst.))x10(-5) with a significance of 7.3sigma. We find no significant signal for B+-->K1(1400)(+)gamma and set an upper limit B(B+-->K1(1400)(+)gamma)K+pi+pi-gamma and B0-->K0pi+pi-gamma in the mass range 1 GeV/c(2)