Evidence for the rare decay B → K*ℓ+ℓ- and measurement of the B → Kℓ+ℓ- branching fraction

Bernard A. Aubert,R. Barate, D. Boutigny,Jean Marc Gaillard,Adlène Hicheur,Yannis Karyotakis,Jean Pierre Lees,Patrick Robbe,Vincent Tisserand,Amina Zghiche,Antimo Palano, A. Pompili,Jin Chen,NaDing Qi,Gang Rong,Ping Wang,YongSheng Zhu,Gerald Eigen,I. Ofte,Bjarne Stugu,Gerald S. Abrams,AW W. Borgland,A. B. Breon,David N. Brown,Janice Button-Shafer,Robert N. Cahn, E. Charles,Christopher Day,Michael Gill,Andrei V. Gritsan,Y. Groysman,Robert G. Jacobsen,R. W. Kadel,John A. Kadyk,Leroy T. Kerth, Yu G. Kolomensky,Jiri F. Kral, G. A. Kukartsev,C. M. LeClerc,Michael E. Levi,Gerald R. Lynch,Ll M. Mir,Piermaria J. Oddone,Toyoko J. Orimoto,Morris Pripstein,Natalie Roé,Alexandru Romosan,Michael T. Ronan,Vasia G. Shelkov,Alexander V. Telnov,William A. Wenzel,K. E. Ford,Timothy J E Harrison,Chris M. Hawkes,D. J. Knowles,S. E. Morgan,RC C. Penny,A. T. Watson,Nigel Keith Watson,K. Goetzen,T. Held,Helmut J. Koch,Bernd Lewandowski,M. Pelizaeus,Klaus J. Peters,H. G. Schmuecker,Michael Steinke,Nick R. Barlow,Jamie T. Boyd,Nicole I. Chevalier,W. N. Cottingham,Marc P. Kelly,Thomas E. Latham,C. K. Mackay,Fergus F. Wilson,Kazuo Abe,Tülay Çuhadar-Dönszelmann,Christopher Hearty,Thomas S. Mattison,Janis A. McKenna,D. M. Thiessen,Paul Kyberd,Adrian K. McKemey,Vladimir E. Blinov,A. D. Bukin,Vladimir B. Golubev,Vladimir N. Ivanchenko,E. A. Kravchenko,A. P. Onuchin,Sergey I. Serednyakov,Yu I. Skovpen,E. P. Solodov,A. N. Yushkov,D. S. Best,M. Bruinsma,M. Chao,David Kirkby,Andrew James Lankford,Mark A. Mandelkern,Remigius K. Mommsen,W. Roethel,David P. Stoker,Charles D. Buchanan,B. L. Hartfiel,Benjamin C. Shen,D. Del Re,Haleh K. Hadavand,E. J. Hill,D. B. MacFarlane,Hans P. Paar,Sh Rahatlou,Vivek Sharma,J. W. Berryhill,Claudio Campagnari,Bryan Dahmes,Natalia Kuznetsova,Shmuel L. Levy,Owen Long,A. A. Lu,Michael A. Mazur,Jeffrey D. Richman,Wouter Verkerke,T. W. Beck,Juerg Beringer,A. M. Eisner,Clemens A. Heusch,William S. Lockman,Terry L. Schalk,R. E. Schmitz,Bruce A. Schumm,Abraham Seiden,Massimiliano Turri,Wolfgang Walkowiak,David C. Williams,Michael G. Wilson,Justin B. Albert,Edward Y. Chen,Gregory P. Dubois-Felsmann,A. Dvoretskii,David G. Hitlin,Ilya V. Narsky,Frank C. Porter,Anders Ryd,A. Samuel,S. Yang,S. Jayatilleke,Giampiero Mancinelli,Brian T. Meadows,Michael D. Sokoloff,Tetsuo Abe,F. L E Blanc,P. C. Bloom,S. J. Chen,P. J. Clark,William T. Ford,Uriel Nauenberg,A. Olivas,Patricia Rankin,Jaya J. Roy,Jay G. Smith,W. C. van Hoek,Liming Zhang,John L. Harton,Ting Hu,Abner Soffer,Walter Toki,Richard J. Wilson,Jian Zhang,Dieter D. Altenburg,T. J. Brandt,Jens Brose,T. Colberg,M. Dickopp,R. S. Dubitzky,A. Hauke,Heiko M. Lacker,E. Maly,Ralph Müller-Pfefferkorn,R. Nogowski,S. Otto,Jens Schubert,Klaus R. Schubert,Rainer Schwierz,Bernhard Spaan,L. H. Wilden,Denis Bernard,G. R. Bonne̊aud,Frédéric Brochard,Johann Cohen-Tanugi,Philippe A. Grenier,Ch Thiebaux,Georges Vasileiadis,Marc Verderi,A. Khan,D. R. Lavin,Franz Muheim,Steve M. Playfer,J. E. Swain,M. Andreotti, V. Azzolini,Diego Bettoni,Concezio Bozzi,Roberto Calabrese,Gianluigi Cibinetto,Eleonora Luppi,Matteo Negrini,L. Piemontese,A. Sarti,E. Treadwell,Fabio Anulli,Rinaldo B F Baldini-Ferroli,Maurizio Biasini,A. C. Calcaterra,Riccardo De Sangro,D. Falciai,Guido Finocchiaro,Piero Patterí,I. M. Peruzzi,Marcello Piccolo,Michele Pioppí,Adriano Z. Zallo,Amedeo Buzzo,R. Capra,R. Contri, G. Crosetti,M. loVetere,Mario M. Macrí,M. R. Monge,Stefano P. Passaggio,Claudia Patrignani,Enrico Robutti,Alberto Santroni,Silvano Tosi,Stephen J. Bailey,Masahiro Morii,Eunil Won,Wahid Bhimji,D. A. Bowerman,Paul Dominic Dauncey,Ulrik Egede,Ivo Gough Eschrich,J. R. Gaillard,G. W. Morton,Jordan A. Nash,Peter M. Sanders,Graham P. Taylor,Gérald J. Grenier,Seungjae Lee,Uma Prasad Mallik,James Cochran,H. Bert Crawley, Jerry W. Lämsä,Werner T. Meyer,Sören A. Prell,Eli I. Rosenberg,Jiang Yi,Michel Davier,Gilbert Grosdidier,Andreas Höcker,Sandrine Laplace,Francois L. Le Diberder,Vincent Lepeltìer,A. M. 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Willocq,Ray F. Cowan,Gabriella Sciolla,F. E. Taylor,R. K. Yamamoto,Dominique J J Mangeol,Popat M. Patel,Alfio Lazzaro,F. F. Palombo,Jens M. Bauer,Lucien M. Cremaldi,Vance O. Eschenburg,Romulus Godang,Richard S. Kroeger,Jim J. Reidy,David A. Sanders,Don J. Summers,Haiwen Zhao, S. Brunet,D. Cote-Ahern,Carsten Hast,Paul Taras,Howard W. Nicholson,Concetta Cartaro,Nicola Cavallo,Guglielmo De Nardo,Francesco Fabozzi,Corrado Gatto,Luca Lísta,Pierluigi S. Paolucci,Davide Piccolo,C. Sciacca,Max Baak,Gerhard Raven,John M. Losecco,Tony A. Gabriel,Benjamin P. Brau,K. K. Gan,Klaus Honscheiď,Dirk Hufnagel,Harris P. Kagan,Richard D. Kass,Teela M. Pulliam,Q. K. Wong,James E. Brau,Raymond E. Frey,Chris T. Potter,Nikolai B. Sinev,David M. Strom, E. Torrence,F. Colecchia,Alvise Dorigo,Fulvio Galeazzi,Martino M. Margoni,Mauro Morandin,M. Posocco,M. Rotondo,Franco Simonetto,Roberto Stroili,G. Tiozzo,Cesare F. Voci,Marc D. Benayoun,H. Briand,Jacques Chauveau,P. Y. David,Ch De La Vaissière,L. 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Kutter,Holing Li,Rongguang Liu,Francesca Di Lodovico,Attila Mihalyi,Ajit K. Mohapatra,Yi Pan,Richard Prepost, S. J. Sekula,J. H. Von Wimmersperg-Toeller,Joz Wu,Saulan Wu,Zhongqiang Yu,Homer A. Neal

Physical Review Letters（2003）

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摘要

Data collected with the BABAR detector at the PEP-II storage ring at the Stanford Linear Accelerator Center were analyzed. Signals were observed for Β→Kℓ+ℓ-, averaged over lepton type (e+e- and μ+μ-) and Β charge. Furthermore, first evidence for Β→ K*ℓ+ℓ-, similarly averaged was obtained.

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physics,biology,mathematics,apply,it,medicine

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