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Improved measurement of the electroweak penguin process<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi><mml:mo>→</mml:mo><mml:msub><mml:mi>X</mml:mi><mml:mi>s</mml:mi></mml:msub><mml:msup><mml:mi>ℓ</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>ℓ</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:math>

M. Iwasaki,K. Itoh,H. Aihara,K. Abe,Kōji Abe,I. Adachi,Y. Asano,T. Aushev,S. Bahinipati,A. M. Bakich,S. Banerjee,I. Bedny,U. Bitenc,I. Bizjak,S. Blyth,A. Bondar,A. Bożek,M. Bračko,J. Brodzicka,T. E. Browder,M. C. Chang,P. Chang,Y. Chao,Kai-Feng Chen,Kai-Feng Chen,W. T. Chen,B. G. Cheon,R. Chistov,S.-K. Choi,Y. Choi,A. Chuvikov,J. Dalseno,Mikhail Danilov,M. Dash,A. Drutskoy,S. Eidelman,Y. Enari,S. Fratina,N. Gabyshev,T. Gershon,G. Gokhroo,B. Golob,A. Gorišek,J. Haba,T. Hara,N. C. Hastings,K. Hayasaka,H. Hayashii,M. Hazumi,T. Hokuue,Y. Hoshi,S. Hou,W.-S. Hou,Y. Hsiung,T. Iijima,A. Imoto,K. Inami,A. Ishikawa,H. Ishino,R. Itoh,J. H. Kang,J. S. Kang,N. Katayama,Hiroyuki Kawai,T. Kawasaki,H. R. Khan,H. Kichimi,H. J. Kim,S. K. Kim,S. M. Kim,K. Kinoshita,P. Križan,P. Krokovny,R. Kulasiri,Suneel Kumar,Chia-Ming Kuo,A. Kuzmin,Y. Kwon,J. S. Lange,G. Leder,S. E. Lee,T. Lesiak,J. Li,S. W. Lin,D. Liventsev,J. MacNaughton,G. Majumder,F. Mandl,Takashi Matsumoto,A. Matyja,Yasushi Mikami,W. Mitaroff,K. Miyabayashi,H. Miyake,H. Miyata,R. Mizuk,D. Mohapatra,G. R. Moloney,T. Nagamine,Y. Nagasaka,I. Nakamura,Eiji Nakano,M. Nakao,H. Nakazawa,Z. Natkaniec,S. Nishida,O. Nitoh,S. Ogawa,T. Ohshima,Tetsuro Okabe,S. Okuno,S. L. Olsen,W. Ostrowicz,H. Ozaki,H. Pałka,C. W. Park,H. Park,N. Parslow,L. S. Peak,R. Pestotnik,L. E. Piilonen,N. Root,M. Rozanska,H. Sagawa,Y. Sakai,N. Sato,T. Schietinger,O. Schneider,P. Schönmeier,J. Schümann,C. Schwanda,A. J. Schwartz,M. E. Sevior,H. Shibuya,B. Shwartz,V. Sidorov,J. B. Singh,A. Somov,N. Soni,Rainer Stamen,S. Stanič,M. Starič,K. Sumisawa,T. Sumiyoshi,Shota Suzuki,Shota Suzuki,O. Tajima,F. Takasaki,K. Tamai,N. Tamura,M. Tanaka,G. N. Taylor,Y. Teramoto,Tian Xia,T. Tsukamoto,S. Uehara,T. Uglov,K. Ueno,S. Uno,P. Urquijo,Y. Ushiroda,G. Varner,K. E. Varvell,S. Villa,C. C. Wang,C. H. Wang,M.-Z. Wang,Y. Watanabe,Qingguo Xie,Bruce Donald Yabsley,Atsuko Yamaguchi,Y. Yamashita,M. Yamauchi,H. X. Yang,J. Ying,L. M. Zhang,Z. P. Zhang,V. Zhilich,D. Žontar,D. Zürcher

Electroweak interaction

Computer science

Mathematics

2005

We present an improved measurement of the branching fraction for the electroweak penguin process B->Xsll, where l is an electron or a muon and Xs is a hadronic system containing an s-quark. The measurement is based on a sample of 152*10^6 Upsilon(4S) -> BB events collected with the Belle detector at the KEKB energy asymmetric e+e- collider. The Xs hadronic system is reconstructed from one K^{+-} or K^{0}_{S} and up to four pions, where at most one pion can be neutral. Averaging over both lepton flavors, the inclusive branching fraction is measured to be Br(B->Xsll)=(4.11+-0.83(stat)+0.85-0.81(syst))*10^{-6} for M_ll > 0.2GeV/c2.

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“Improved measurement of the electroweak penguin process<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi><mml:mo>→</mml:mo><mml:msub><mml:mi>X</mml:mi><mml:mi>s</mml:mi></mml:msub><mml:msup><mml:mi>ℓ</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>ℓ</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:math>” is a paper by M. Iwasaki K. Itoh H. Aihara K. Abe Kōji Abe I. Adachi Y. Asano T. Aushev S. Bahinipati A. M. Bakich S. Banerjee I. Bedny U. Bitenc I. Bizjak S. Blyth A. Bondar A. Bożek M. Bračko J. Brodzicka T. E. Browder M. C. Chang P. Chang Y. Chao Kai-Feng Chen Kai-Feng Chen W. T. Chen B. G. Cheon R. Chistov S.-K. Choi Y. Choi A. Chuvikov J. Dalseno Mikhail Danilov M. Dash A. Drutskoy S. Eidelman Y. Enari S. Fratina N. Gabyshev T. Gershon G. Gokhroo B. Golob A. Gorišek J. Haba T. Hara N. C. Hastings K. Hayasaka H. Hayashii M. Hazumi T. Hokuue Y. Hoshi S. Hou W.-S. Hou Y. Hsiung T. Iijima A. Imoto K. Inami A. Ishikawa H. Ishino R. Itoh J. H. Kang J. S. Kang N. Katayama Hiroyuki Kawai T. Kawasaki H. R. Khan H. Kichimi H. J. Kim S. K. Kim S. M. Kim K. Kinoshita P. Križan P. Krokovny R. Kulasiri Suneel Kumar Chia-Ming Kuo A. Kuzmin Y. Kwon J. S. Lange G. Leder S. E. Lee T. Lesiak J. Li S. W. Lin D. Liventsev J. MacNaughton G. Majumder F. Mandl Takashi Matsumoto A. Matyja Yasushi Mikami W. Mitaroff K. Miyabayashi H. Miyake H. Miyata R. Mizuk D. Mohapatra G. R. Moloney T. Nagamine Y. Nagasaka I. Nakamura Eiji Nakano M. Nakao H. Nakazawa Z. Natkaniec S. Nishida O. Nitoh S. Ogawa T. Ohshima Tetsuro Okabe S. Okuno S. L. Olsen W. Ostrowicz H. Ozaki H. Pałka C. W. Park H. Park N. Parslow L. S. Peak R. Pestotnik L. E. Piilonen N. Root M. Rozanska H. Sagawa Y. Sakai N. Sato T. Schietinger O. Schneider P. Schönmeier J. Schümann C. Schwanda A. J. Schwartz M. E. Sevior H. Shibuya B. Shwartz V. Sidorov J. B. Singh A. Somov N. Soni Rainer Stamen S. Stanič M. Starič K. Sumisawa T. Sumiyoshi Shota Suzuki Shota Suzuki O. Tajima F. Takasaki K. Tamai N. Tamura M. Tanaka G. N. Taylor Y. Teramoto Tian Xia T. Tsukamoto S. Uehara T. Uglov K. Ueno S. Uno P. Urquijo Y. Ushiroda G. Varner K. E. Varvell S. Villa C. C. Wang C. H. Wang M.-Z. Wang Y. Watanabe Qingguo Xie Bruce Donald Yabsley Atsuko Yamaguchi Y. Yamashita M. Yamauchi H. X. Yang J. Ying L. M. Zhang Z. P. Zhang V. Zhilich D. Žontar D. Zürcher published in 2005. It has an Open Access status of “green”. You can read and download a PDF Full Text of this paper here.