%0 Journal Article
%T Study of Exclusive B->X_u l nu Decays and Extraction of |V_{ub}| using Full Reconstruction Tagging at the Belle Experiment
%A Belle Collaboration
%A A. Sibidanov
%A K. E. Varvell
%A I. Adachi
%A H. Aihara
%A D. M. Asner
%A V. Aulchenko
%A T. Aushev
%A A. M. Bakich
%A A. Bala
%A A. Bozek
%A M. Bra£¿ko
%A T. E. Browder
%A V. Chekelian
%A P. Chen
%A B. G. Cheon
%A K. Chilikin
%A R. Chistov
%A I. -S. Cho
%A K. Cho
%A V. Chobanova
%A Y. Choi
%A D. Cinabro
%A J. Dalseno
%A M. Danilov
%A J. Dingfelder
%A Z. Dole£¿al
%A Z. Dr¨¢sal
%A A. Drutskoy
%A D. Dutta
%A S. Eidelman
%A D. Epifanov
%A H. Farhat
%A J. E. Fast
%A T. Ferber
%A A. Frey
%A V. Gaur
%A S. Ganguly
%A R. Gillard
%A Y. M. Goh
%A B. Golob
%A J. Haba
%A H. Hayashii
%A Y. Hoshi
%A W. -S. Hou
%A H. J. Hyun
%A T. Iijima
%A A. Ishikawa
%A R. Itoh
%A Y. Iwasaki
%A T. Julius
%A D. H. Kah
%A J. H. Kang
%A T. Kawasaki
%A C. Kiesling
%A D. Y. Kim
%A H. J. Kim
%A J. B. Kim
%A J. H. Kim
%A K. T. Kim
%A Y. J. Kim
%A J. Klucar
%A B. R. Ko
%A P. Kody£¿
%A S. Korpar
%A P. Kri£¿an
%A P. Krokovny
%A B. Kronenbitter
%A T. Kuhr
%A A. Kuzmin
%A Y. -J. Kwon
%A S. -H. Lee
%A J. Li
%A Y. Li
%A J. Libby
%A Y. Liu
%A D. Liventsev
%A P. Lukin
%A D. Matvienko
%A K. Miyabayashi
%A H. Miyata
%A G. B. Mohanty
%A A. Moll
%A R. Mussa
%A Y. Nagasaka
%A E. Nakano
%A M. Nakao
%A Z. Natkaniec
%A M. Nayak
%A E. Nedelkovska
%A C. Ng
%A N. K. Nisar
%A S. Nishida
%A O. Nitoh
%A T. Nozaki
%A S. Ogawa
%A S. Okuno
%A S. L. Olsen
%A C. Oswald
%A H. Park
%A H. K. Park
%A T. K. Pedlar
%A R. Pestotnik
%A M. Petri£¿
%A L. E. Piilonen
%A M. Ritter
%A M. R£¿hrken
%A A. Rostomyan
%A S. Ryu
%A H. Sahoo
%A T. Saito
%A Y. Sakai
%A S. Sandilya
%A L. Santelj
%A T. Sanuki
%A Y. Sato
%A V. Savinov
%A O. Schneider
%A G. Schnell
%A C. Schwanda
%A K. Senyo
%A O. Seon
%A M. E. Sevior
%A M. Shapkin
%A V. Shebalin
%A C. P. Shen
%A T. -A. Shibata
%A J. -G. Shiu
%A F. Simon
%A P. Smerkol
%A Y. -S. Sohn
%A E. Solovieva
%A S. Stani£¿
%A M. Stari£¿
%A M. Steder
%A M. Sumihama
%A K. Sumisawa
%A T. Sumiyoshi
%A G. Tatishvili
%J Physics
%D 2013
%I arXiv
%R 10.1103/PhysRevD.88.032005
%X We report the results of a study of the exclusive semileptonic decays B->pi0lnu, B->pi+lnu, B->rho0lnu, B->rho+lnu and B->omegalnu, where l represents an electron or a muon. The events are tagged by fully reconstructing a second B meson in the event in a hadronic decay mode. The measured branching fractions are Br(B->pi0lnu) = (0.80 +- 0.08 +- 0.04)x10^-4, Br(B->pi+lnu) = (1.49 +- 0.09 +- 0.07)x10^-4, Br(B->rho0lnu) = (1.83 +- 0.10 +- 0.10)x10^-4, Br(B->rho+lnu) = (3.22 +- 0.27 +- 0.24)x10^-4, and Br(B->omegalnu) =(1.07 +- 0.16 +- 0.07)x10^-4, where the first error is statistical and the second one is systematic. The obtained branching fractions are inclusive of soft photon emission. We also determine the branching fractions as a function of the 4-momentum transfer squared to the leptonic system q^2=(p_l+p_nu)^2, where p_l and p_nu are the lepton and neutrino 4-momenta, respectively. Using the pion modes, a recent LCSR calculation, lattice QCD results and a model-independent description of the hadronic form factor, a value of the CKM matrix element |V_{ub}| = (3.52 +- 0.29)x10^-3 is extracted. For the first time, a charmless state with invariant mass greater than 1 GeV/c^2, which might be dominated by the decay B->f2lnu, is observed. These results are obtained from a 711 1/fb data sample that contains 772 millions BB pairs, collected near the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^+ e^- collider.
%U http://arxiv.org/abs/1306.2781v1