Search for lepton and baryon number violating tau- decays into anti-Lambda pi- and Lambda pi-
Search for lepton and baryon number violating tau- decays into anti-Lambda pi- and Lambda pi-
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DOI：
10.1016/j.physletb.2005.10.024
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发表时间：
2005-08
影响因子：
4.4
通讯作者：
Y. Miyazaki;K. Abe;I. Adachi;H. Aihara;K. Arinstein;Y. Asano;V. Aulchenko;T. Aushev;S. Bahinipati;A. Bakich;V. Balagura;E. Barberio;I. Bedny;U. Bitenc;I. Bizjak;S. Blyth;A. Bondar;A. Bozek;M. Bračko;J. Brodzicka;T. Browder;P. Chang;Y. Chao;A. Chen;K. F. Chen;W. Chen;B. Cheon;R. Chistov;Y. Choi;A. Chuvikov;S. Cole;J. Dalseno;M. Danilov;M. Dash;L. Dong;A. Drutskoy;S. Eidelman;Y. Enari;D. Epifanov;S. Fratina;N. Gabyshev;A. Garmash;T. Gershon;A. Go;G. Gokhroo;B. Golob;A. Gorišek;H. Ha;K. Hayasaka;H. Hayashii;M. Hazumi;T. Hokuue;Y. Hoshi;S. Hou;W. Hou;T. Iijima;K. Ikado;A. Imoto;K. Inami;A. Ishikawa;R. Itoh;Y. Iwasaki;J. Kang;J. Kang;P. Kapusta;N. Katayama;H. Kawai;T. Kawasaki;H. Khan;H. Kichimi;H. Kim;J. H. Kim;S. Kim;S. Kim;S. Korpar;P. Križan;P. Krokovny;R. Kulasiri;C. Kuo;A. Kuzmin;Y. Kwon;G. Leder;S. Lee;T. Lesiak;S. Lin;D. Liventsev;Gobinda Majumder;F. Mandl;T. Matsumoto;A. Matyja;Y. Mikami;W. Mitaroff;K. Miyabayashi;H. Miyake;H. Miyata;G. Moloney;T. Nagamine;Y. Nagasaka;E. Nakano;M. Nakao;H. Nakazawa;Z. Natkaniec;S. Nishida;O. Nitoh;S. Ogawa;T. Ohshima;T. Okabe;S. Okuno;S. L. Olsen;Y. Onuki;W. Ostrowicz;H. Ozaki;P. Pakhlov;H. Palka;C. Park;N. Parslow;R. Pestotnik;L. Piilonen;A. Poluektov;N. Root;M. Różańska;Y. Sakai;N. Sato;N. Satoyama;K. Sayeed;T. Schietinger;O. Schneider;M. Sevior;H. Shibuya;B. Shwartz;V. Sidorov;A. Somov;S. Stanič;M. Starič;K. Sumisawa;T. Sumiyoshi;S. Suzuki;O. Tajima;F. Takasaki;K. Tamai;M. Tanaka;G. Taylor;Y. Teramoto;X. Tian;T. Tsuboyama;T. Tsukamoto;S. Uehara;T. Uglov;S. Uno;P. Urquijo;G. Varner;S. Villa;C. Wang;C. H. Wang;Y. Watanabe;E. Won;Q. Xie;A. Yamaguchi;Y. Yamashita;M. Yamauchi;J. Ying;J. Zhang;L. Zhang;Z. Zhang;V. Zhilich;D. Zürcher
中科院分区：
文献类型：
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作者：
Y. Miyazaki;K. Abe;I. Adachi;H. Aihara;K. Arinstein;Y. Asano;V. Aulchenko;T. Aushev;S. Bahinipati;A. Bakich;V. Balagura;E. Barberio;I. Bedny;U. Bitenc;I. Bizjak;S. Blyth;A. Bondar;A. Bozek;M. Bračko;J. Brodzicka;T. Browder;P. Chang;Y. Chao;A. Chen;K. F. Chen;W. Chen;B. Cheon;R. Chistov;Y. Choi;A. Chuvikov;S. Cole;J. Dalseno;M. Danilov;M. Dash;L. Dong;A. Drutskoy;S. Eidelman;Y. Enari;D. Epifanov;S. Fratina;N. Gabyshev;A. Garmash;T. Gershon;A. Go;G. Gokhroo;B. Golob;A. Gorišek;H. Ha;K. Hayasaka;H. Hayashii;M. Hazumi;T. Hokuue;Y. Hoshi;S. Hou;W. Hou;T. Iijima;K. Ikado;A. Imoto;K. Inami;A. Ishikawa;R. Itoh;Y. Iwasaki;J. Kang;J. Kang;P. Kapusta;N. Katayama;H. Kawai;T. Kawasaki;H. Khan;H. Kichimi;H. Kim;J. H. Kim;S. Kim;S. Kim;S. Korpar;P. Križan;P. Krokovny;R. Kulasiri;C. Kuo;A. Kuzmin;Y. Kwon;G. Leder;S. Lee;T. Lesiak;S. Lin;D. Liventsev;Gobinda Majumder;F. Mandl;T. Matsumoto;A. Matyja;Y. Mikami;W. Mitaroff;K. Miyabayashi;H. Miyake;H. Miyata;G. Moloney;T. Nagamine;Y. Nagasaka;E. Nakano;M. Nakao;H. Nakazawa;Z. Natkaniec;S. Nishida;O. Nitoh;S. Ogawa;T. Ohshima;T. Okabe;S. Okuno;S. L. Olsen;Y. Onuki;W. Ostrowicz;H. Ozaki;P. Pakhlov;H. Palka;C. Park;N. Parslow;R. Pestotnik;L. Piilonen;A. Poluektov;N. Root;M. Różańska;Y. Sakai;N. Sato;N. Satoyama;K. Sayeed;T. Schietinger;O. Schneider;M. Sevior;H. Shibuya;B. Shwartz;V. Sidorov;A. Somov;S. Stanič;M. Starič;K. Sumisawa;T. Sumiyoshi;S. Suzuki;O. Tajima;F. Takasaki;K. Tamai;M. Tanaka;G. Taylor;Y. Teramoto;X. Tian;T. Tsuboyama;T. Tsukamoto;S. Uehara;T. Uglov;S. Uno;P. Urquijo;G. Varner;S. Villa;C. Wang;C. H. Wang;Y. Watanabe;E. Won;Q. Xie;A. Yamaguchi;Y. Yamashita;M. Yamauchi;J. Ying;J. Zhang;L. Zhang;Z. Zhang;V. Zhilich;D. Zürcher
我们使用 KEKB e+e- 不对称能量对撞机上的 Belle 探测器收集的 154 fb^{-1} 数据样本，搜索了 tau 轻子衰变，tau- -> Lambda-bar pi- 和 tau- -> Lambda pi-，它们同时违反了轻子和重子数守恒定律。在任一衰减模式中均未发现信号证据，我们为分支分数设置以下上限：在 90% 置信水平下，B(tau^- -> Lambda-bar\pi-) < 1.4 * 10^{-7} 和 B(tau^- -> Lambda pi^-) < 0.72 * 10^{-7}。这是对这些模式进行的首次搜索。
We have searched for tau lepton decays, tau- -> Lambda-bar pi- and tau- -> Lambda pi-, that simultaneously violate the conservation of the lepton and baryon number using a data sample of 154 fb^{-1} collected with the Belle detector at the KEKB e+e- asymmetric-energy collider. No evidence for a signal was found in either of the decay modes and we set the following upper limits for the branching fractions: B(tau^- -> Lambda-bar\pi-) < 1.4 * 10^{-7} and B(tau^- -> Lambda pi^-) < 0.72 * 10^{-7} at the 90% confidence level. This is the first search ever performed for these modes.