Measurement of B-->Xgamma decays and determination of |Vtd/Vts|.

  title={Measurement of B-->Xgamma decays and determination of |Vtd/Vts|.},
  author={Bernard Aubert and Marcella Bona and Yannis Karyotakis and J. P. Lees and Vincent Poireau and Elisabetta Prencipe and Xavier Prudent and Vincent Tisserand and J. Garra Tico and Eugeni Grauges and Lucia Garc{\'i}a L{\'o}pez and Antimo Palano and M. Pappagallo and Gerald Eigen and Bjarne Stugu and Liqun Sun and Gordan Abrams and Marco Battaglia and Robert Cahn and Robert G. Jacobsen and L. T. Kerth and Yu G Kolomensky and Guy Lynch and I. L. Osipenkov and Michael T. Ronan and Kerstin Tackmann and Takehiko Tanabe and Christopher Hawkes and Nitesh Soni and A. Ted Watson and Hans Koch and Thomas P Schr{\"o}der and David Q. Walker and D. J. Asgeirsson and Bryan G. Fulsom and Conor Hearty and T. S. Mattison and J A Mckenna and Martin Barrett and Arshad Khan and Veniamin Blinov and A. V. Bozhenok A. D. Bukin D. A. Bukin and A. R. Buzykaev and V. P. Druzhinin and Vladimir B. Golubev and Alexander Onuchin and Sergei I. Serednyakov and Yu I Skovpen and Evgeny Solodov and K. Yu Todyshev and Mariasole Bondioli and ShannonM. Curry and I. Gough Eschrich and David Kirkby and A. J. Lankford and Peter Lund and Mark Mandelkern and Elizabeth C. Martin and David Stoker and Shahriar Abachi and Chuck Buchanan and James Gary and Feng Liu and Owen Long and B. C. Shen and G. M. Vitug and Zulfigar bin Yasin and Lili Zhang and Vandana Sharma and Claudio Campagnari and Tan Mui Hong and D. Kovalskyi and Miłosz A. Mazur and Jeffrey D. Richman and Travis W. Beck and A. M. Eisner and Christian J Flacco and Clemens Ai Heusch and J{\"u}rgen Kroseberg and W. S. Lockman and Alberto J. Martinez and Terry Schalk and Bruce Andrew Schumm and Abraham Seiden and M. A. Whalley G. W. Wilson and L. O. Winstrom and C.-H. Him Cheng and David Doll and Bertrand Echenard and F. W. Fang and David G. Hitlin and Ilya Narsky and T. Piatenko and Frank C. Porter and Rune Andreassen and Giampiero Mancinelli and Brian T. Meadows and Keerti Mishra and Michael D. Sokoloff and P. C. Bloom and William Ford and Alessandro Gaz and James F. Hirschauer and Matthias Nagel and Uriel Nauenberg and James G. Smith and K. A. Ulmer and Stephen R. Wagner and R. Ayad and Abner Soffer and Walter H. Toki and R. J. Wilson and D. D. Altenburg and E. Feltresi and Aleksandra Hauke and H{\'e}ctor Jasper and Michael Karbach and J{\"o}rg Merkel and A. Petzold and Bernhard Spaan and K. Wacker and Martin Kobel and Wolfgang Mader and R. Nogowski and Kristina Schubert and R. Schwierz and Alexander Volk and Denis Bernard and G. R. Bonneaud and Ewa Latour and Marc Verderi and Peter J. Clark and Stephen Playfer and Jenny Watson and Mirco Andreotti and Daniela Bettoni and C. Bozzi and Roberto Calabrese and Antonella Cecchi and Gianluigi Cibinetto and Paolo Franchini and Eleonora Luppi and Matteo Negrini and Anthony Petrella and Luigi Piemontese and Valentina Santoro and R. Baldini-Ferroli and Andrea Calcaterra and R. de Sangro and Giuseppe Finocchiaro and Simone Pacetti and Pierpaolo Patteri and Isabella Peruzzi and Mauro Piccolo and Matteo Rama and Adriano Zallo and Armando Buzzo and Rachele Contri and M. Lo Vetere and Matheus Martin Macri and Miriam Monge and Stefano Passaggio and C. Patrignani and Enrico Robutti and A. Santroni and Simone Tosi and Kris S. Chaisanguanthum and Mikio Morii and A. Adametz and J{\"o}rg Marks and Stefan Schenk and U. Uwer and V. Klose and H. Lacker and Deborah Bard and P. D. Dauncey and James A. Nash and Michael S. Tibbetts and Pradipta Kumar Behera and Xiaochuan Chai and Moreau Jean Charles and Usha Mallik and Johnnie Cochran and H. Bert Crawley and Liaoyuan Dong and W. T. Meyer and S{\"o}ren Prell and E. I. Rosenberg and Alan E. Rubin and Yvonne Y. Gao and Andrei V. Gritsan and Zhou Guo and C. K. Lae and Nicolas Arnaud and J. B{\'e}quilleux and Annunziata D'Orazio and M. Davier and J Firmino da Costa and Gilbert Grosdidier and Andreas Hoecker and Vincent Lepeltier and F. Le Diberder and Avery M. Lutz and Sandrine Pruvot and Patrick Roudeau and M. H. Schune and Justin Serrano and Viola Sordini and Achille Stocchi and Guy Wormser and David J. Lange and David M Wright and Ian J. Bingham and James Patrick Burke and Carlos A. Ch{\'a}vez and John R. Fry and Erwin Gabathuler and R. Gamet and D. Hutchcroft and David J Payne and C. Touramanis and A. J. Bevan and Christina K Clarke and Karina A George and Francesca Di Lodovico and Ralph Sacco and Michael Sigamani and Greig Cowan and Henning Flaecher and David A. Hopkins and S. Paramesvaran and F T Salvatore and Ansley Wren and David Norvil Brown and C. L. Davis and Achim G. Denig and Michael Fritsch and Wolfgang Gradl and G{\"u}nter Schott and K. E. Alwyn and Donald S. Bailey and Rebecca Jo Barlow and Yi Shi Michelle Chia and C. L. Edgar and George Jackson and George Lafferty and Taylor West and Jun Yi and Joseph D. Anderson and Chien-Hung Chen and Abolhassan Jawahery and Douglas A Roberts and Goran {\vS}imi and Joshua M. Tuggle and C. Dallapiccola and Xiang Shu Li and Emmanuele Salvati and Sahar Saremi and R. Cowan and Denis Dujmi{\'c} and P. H. Fisher and G. Sciolla and Mary Beth Spitznagel and Fred W. Taylor and Ricardo Kazuito Yamamoto and Meisheng Zhao and Professor Manish Patel and Struan Robertson and Alfio Lazzaro and Vincenzo Lombardo and Fernando F. Palombo and James M. Bauer and L. Cremaldi and R. Godang and Roland Kr{\"o}ger and Duncan A Sanders and D. J. Summers and Ha-Lin Zhao and Mathieu Simard and Paul Taras and F. B. Viaud and Helen Nicholson and G. De Nardo and Luca Lista and D. Monorchio and G. Onorato and Claudia Sciacca and G. Raven and H. L. Snoek and C. P. Jessop and K. J. Knoepfel and J M Losecco and Weigang Wang and Gabriele Benelli and L. A. Corwin and Klaus Honscheid and Harris Kagan and R W Kass and Joseph W. Morris and Ali Mehdizadeh Rahimi and Jochen Regensburger and Stephen J. Sekula and Q. K. Wong and N. L. Blount and J. E. Brau and Raymond Frey and O. Igonkina and Jeffrey A Kolb and Minghui Lu and Roushanak Rahmat and N. B. Sinev and David G Strom and Jan Strube and Eric C. Torrence and Gianmarco Castelli and Nicoletta Gagliardi and Martino Margoni and Mattia Morandin and M. Posocco and Michael Rotondo and F. Simonetto and Roberto Stroili and Cesare Voci and P del Amo Sanchez and Eli Ben-Haim and Heather A. Briand and Giovanni Calderini and Jacques Chauveau and Pointer David and Luca Del Buono and Olivier Hamon and Ph Leruste and Jos{\'e} Ocariz and Alejandro {\'A}lvarez P{\'e}rez and J. Prendki and Sally El Sitt and L. D. Gladney and Maurizio Biasini and R. Covarelli and E. Manoni and C Ferrer Angelini and Giovanni Batignani and Stefano Bettarini and Massimo Carpinelli and Alberto Cervelli and Francesco Forti and M. A. Giorgi and Alberto Lusiani and Giovanni Marchiori and Matteo Morganti and Nicola Neri and Eugenio Paoloni and Giuliana Rizzo and John J. Walsh and D Lopes Pegna and C. Lu and Jackson Olsen and Angela J Smith and A. V. Telnov and F. Anulli and Elisabetta Baracchini and Gianluca Cavoto and Debora Del Re and Eddi di Marco and Riccardo Faccini and F. Ferrarotto and Fernando Ferroni and Mario Gaspero and Paul D. Jackson and L. Li Gioi and Marta Mazzoni and Silvio Morganti and Giovanni Piredda and F. Polci and Francesco Renga and Cecilia Voena and Miroslav Ebert and T L Hartmann and Henning Schr{\"o}der and Roland Waldi and T. Adye and B. Franek and Emmanuel Olaiya and F. F. Wilson and Sarah Emery and M. Escalier and Lluis Esteve and Sergey Ganzhur and G. Hamel de Monchenault and W. Kozanecki and G. J. VanDalen G. Vasseur and Ch Y{\`e}che and Marco Zito and Xiaofeng Chen and Hao Liu and W. Park and Milind V. Purohit and RussiaS. M. White and John Robert Wilson and Maxine Allen and David J. Aston and Rainer Bartoldus and Philip Bechtle and Jacqueline Ben{\'i}tez and Rodrigo Alberto Cenci and Jonathon P. Coleman and Mark R. Convery and Jochen Dingfelder and Jonathan M. Dorfan and Gregory P. Dubois-Felsmann and W. M. Dunwoodie and Richard C. Field and A. M. Gabareen and Stephen J. Gowdy and Mark T. Graham and Philippe A. Grenier and Carsten Hast and Walter R. Innes and Jochen Kaminski and Michael H. Kelsey and H. Kim and Phillip J Kim and M. Kocian and David W. G. S. Leith and Shi Li and Brent Lindquist and S. Luitz and V. Luth and Harvey L. Lynch and D B Macfarlane and Helmut Marsiske and Robert Messner and Dr. Michael R. Muller and Homer Neal and Sam Nelson and C P O'grady and Ingrid Ofte and Antonio Perazzo and Martin L. Perl and Blair N. Ratcliff and Aaron J. Roodman and A. A. Salnikov and Rafe Hyam Schindler and Jochen Schwiening and Angela Snyder and D. Q. Su and Michael K. Sullivan and Kazuhiro Suzuki and Sanjay Kumar Swain and J. M. Thompson and J. Va'vra and Andrew P. Wagner and Marsha Weaver and Chris A West and Władysław Wiśniewski and M. Wittgen and Dennis H. Wright and H. W. Wulsin and A. K. Yarritu and K C Yi and Craig C. Young and Volker Ziegler and Patricia R. Burchat and Alaisdair J. Edwards and Stephanie A. Majewski and Takeshi Miyashita and Bruce A. Petersen and Laura Wilden and Saima Ahmed and M. Siraj Alam and Jerome Ernst and Bingying Pan and Muhammad Ahsan Saeed and Sayeeda B Zain and Stefan Spanier and B J Wogsland and Reiner Eckmann and Jack L. Ritchie and A. M. Ruland and Christopher J. Schilling and Roy F. Schwitters and Brad Drummond and Joseph M. Izen and Xiaochu Lou and Fabrizio Bianchi and Daniela Gamba and Maorizio Pelliccioni and Marco Bomben and Luciano Bosisio and Concetta Cartaro and Giuseppe Della Ricca and L. Lanceri and Lorenzo Vitale and V. Azzolini and Neus LOPEZ-MARCH and Fernando Mart{\'i}nez-Vidal and Diego A. Milan{\'e}s and Arantza Oyanguren and J-N. Albert and Sw. Banerjee},
  journal={Physical review letters},
  volume={102 16},
Using a sample of 383 x 10;{6} BB[over ] events collected by the BABAR experiment, we measure sums of seven exclusive final states B-->X_{d(s)}gamma, where X_{d}(X_{s}) is a nonstrange (strange) charmless hadronic system in the mass range 0.6-1.8 GeV/c;{2}. After correcting for unmeasured decay modes in this mass range, we obtain a branching fraction for b-->dgamma of (7.2+/-2.7(stat)+/-2.3(syst))x10;{-6}. Taking the ratio of X_{d} to X_{s} we find Gamma(b-->dgamma)/Gamma(b-->sgamma)=0.033+/-0… CONTINUE READING
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