Search for lepton flavor and lepton number violating tau decays into a lepton and two charged mesons

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题名:	Search for lepton flavor and lepton number violating tau decays into a lepton and two charged mesons
作者:	Miyazaki,Y;Aihara,H;Arinstein,K;Aulchenko,V;Aushev,I;Bakich,AM;Balagura,V;Barberio,E;Bay,A;Belous,K;Bhardwaj,V;Bischofberger,M;Bondar,A;Bracko,M;Browder,TE;Chang,P;Chen,A;Cheon,BG;Cho,IS;Choi,Y;Dalseno,J;Dash,M;Dungel,W;Eidelman,S;Epifanov,D;Feindt,M;Gabyshev,N;Garmash,A;Goldenzweig,P;Ha,H;Haba,J;Hara,K;Hasegawa,Y;Hayasaka,K;Hayashii,H;Horii,Y;Hoshi,Y;Hou,WS;Hyun,HJ;Iijima,T;Inami,K;Itoh,R;Iwasaki,M;Iwasaki,Y;Julius,T;Kah,DH;Kang,JH;Kawai,H;Kawasaki,T;Kim,HO;Kim,JH;Kim,SK;Kim,YI;Kim,YJ;Ko,BR;Korpar,S;Krizan,P;Krokovny,P;Kumar,R;Kumita,T;Kuzmin,A;Kwon,YJ;Kyeong,SH;Lee,SH;Lesiak,T;Li,J;Liu,C;Liventsev,D;Louvot,R;Matyja,A;McOnie,S;Miyabayashi,K;Miyata,H;Nagamine,T;Nagasaka,Y;Nakano,E;Nakao,M;Nishida,S;Nishimura,K;Nitoh,O;Ohshima,T;Okuno,S;Olsen,SL;Pakhlov,P;Pakhlova,G;Palka,H;Park,CW;Park,H;Park,HK;Pestotnik,R;Piilonen,LE;Poluektov,A;Sakai,Y;Schneider,O;Schwanda,C;Senyo,K;Shapkin,M;Shebalin,V;Shiu,JG;Shwartz,B;Sokolov,A;Solovieva,E;Stanic,S;Staric,M;Sumiyoshi,T;Taylor,GN;Teramoto,Y;Tikhomirov,I;Uehara,S;Unno,Y;Uno,S;Urquijo,P;Usov,Y;Varner,G;Vinokurova,A;Wang,CH;Wang,P;Watanabe,Y;Wedd,R;Won,E;Yabsley,BD;Yamashita,Y;Yusa,Y;Zhang,ZP;Zhilich,V;Zhulanov,V;Zivko,T;Zupanc,A;Zyukova,O
贡献者:	物理學系
日期:	2010
上传时间:	2012-06-11 10:46:39 (UTC+8)
出版者:	國立中央大學
摘要:	We search for lepton flavor and lepton number violating tau decays into a lepton (l = electron or muon) and two charged mesons (h, h' = pi(+/-) or K(+/-)), tau(-) -> l(-)h(+)h'(-) and tau- -> l(+)h(-)h'(-), using 671 fb(-1) of data collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We obtain 90% C.L. upper limits on the branching fractions in the range (4.4-8.8) x 10(-8) for tau -> ehh', and (3.3-16) x 10(-8) for tau -> mu hh' processes. These results improve upon previously published upper limits by factors between 1.6 to 8.8. (C) 2009 Elsevier B.V. All rights reserved.
關聯:	PHYSICS LETTERS B
显示于类别:	[物理學系] 期刊論文

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