Measurement of the $B$$^{-}$ $\rightarrow$ $D$$^{0}$$\ell$$^{-}$$\bar{\nu}$$_{\ell}$ Branching Fraction in 62.8 fb$^{-1}$ of Belle II data - Archive ouverte HAL Access content directly
Preprints, Working Papers, ... Year : 2022

Measurement of the $B$$^{-}$ $\rightarrow$ $D$$^{0}$$\ell$$^{-}$$\bar{\nu}$$_{\ell}$ Branching Fraction in 62.8 fb$^{-1}$ of Belle II data

F. Abudinén , I. Adachi , R. Adak , K. Adamczyk , L. Aggarwal , P. Ahlburg , H. Ahmed , J.K. Ahn , H. Aihara , N. Akopov , A. Aloisio , F. Ameli , L. Andricek , N. Anh Ky , D.M. Asner , H. Atmacan , V. Aulchenko , T. Aushev , V. Aushev , T. Aziz , V. Babu , S. Bacher , H. Bae , S. Baehr , S. Bahinipati , A.M. Bakich , P. Bambade (1) , Sw. Banerjee , S. Bansal , M. Barrett , G. Batignani , J. Baudot (2) , M. Bauer , A. Baur , A. Beaulieu , J. Becker , P.K. Behera , J.V. Bennett , E. Bernieri , F.U. Bernlochner , M. Bertemes , E. Bertholet , M. Bessner , S. Bettarini , V. Bhardwaj , B. Bhuyan , F. Bianchi , T. Bilka , S. Bilokin , D. Biswas , A. Bobrov , D. Bodrov , A. Bolz , A. Bondar , G. Bonvicini , A. Bozek , M. Bračko , P. Branchini , N. Braun , R.A. Briere , T.E. Browder , D.N. Brown , A. Budano , L. Burmistrov (1) , S. Bussino , M. Campajola , L. Cao , G. Caria , G. Casarosa , C. Cecchi , D. Červenkov , M.C. Chang , P. Chang , R. Cheaib , V. Chekelian , C. Chen , Y.Q. Chen , Y.T. Chen , B.G. Cheon , K. Chilikin , K. Chirapatpimol , H.E. Cho , K. Cho , S.J. Cho , S.K. Choi , S. Choudhury , D. Cinabro , L. Corona , L.M. Cremaldi , D. Cuesta (2) , S. Cunliffe , T. Czank , N. Dash , F. Dattola , E. De La Cruz-Burelo , G. de Marino (1) , G. De Nardo , M. de Nuccio , G. de Pietro , R. de Sangro , B. Deschamps , M. Destefanis , S. Dey , A. de Yta-Hernandez , A. Di Canto , F. Di Capua , S. Di Carlo (1) , J. Dingfelder , Z. Doležal , I. Domínguez Jiménez , T.V. Dong , M. Dorigo , K. Dort , D. Dossett , S. Dubey , S. Duell , G. Dujany (2) , S. Eidelman , M. Eliachevitch , D. Epifanov , J.E. Fast , T. Ferber , D. Ferlewicz , T. Fillinger (2) , G. Finocchiaro , S. Fiore , P. Fischer , A. Fodor , F. Forti , A. Frey , M. Friedl , B.G. Fulsom , M. Gabriel , A. Gabrielli , N. Gabyshev , E. Ganiev , M. Garcia-Hernandez , R. Garg , A. Garmash , V. Gaur , A. Gaz , U. Gebauer , A. Gellrich , J. Gemmler , T. Geßler , D. Getzkow , R. Giordano , A. Giri , A. Glazov , B. Gobbo , R. Godang , P. Goldenzweig , B. Golob , P. Gomis , G. Gong , P. Grace , W. Gradl , E. Graziani , D. Greenwald , T. Gu , Y. Guan , K. Gudkova , C. Hadjivasiliou , S. Halder , K. Hara , T. Hara , O. Hartbrich , K. Hayasaka , H. Hayashii , S. Hazra , C. Hearty , M.T. Hedges , I. Heredia de la Cruz , M. Hernández Villanueva , A. Hershenhorn , T. Higuchi , E.C. Hill , H. Hirata , M. Hoek , M. Hohmann , S. Hollitt , T. Hotta , C.L. Hsu , Y. Hu , K. Huang , T. Humair , T. Iijima , K. Inami , G. Inguglia , J. Irakkathil Jabbar , A. Ishikawa , R. Itoh , M. Iwasaki , Y. Iwasaki , S. Iwata , P. Jackson , W.W. Jacobs , I. Jaegle , D.E. Jaffe , E.J. Jang , M. Jeandron , H.B. Jeon , S. Jia , Y. Jin , C. Joo , K.K. Oo , H. Junkerkalefeld , I. Kadenko , J. Kahn , H. Kakuno , A.B. Kaliyar , J. Kandra , K.H. Kang , P. Kapusta , R. Karl , G. Karyan , Y. Kato , H. Kawai , T. Kawasaki , C. Ketter , H. Kichimi , C. Kiesling , B.H. Kim , C.H. Kim , D.Y. Kim , H.J. Kim , K.H. Kim , K. Kim , S.H. Kim , Y.K. Kim , Y. Kim , T.D. Kimmel , H. Kindo , K. Kinoshita , C. Kleinwort , B. Knysh (1) , P. Kodyšs , T. Koga , S. Kohani , I. Komarov , T. Konno , A. Korobov , S. Korpar , N. Kovalchuk , E. Kovalenko , R. Kowalewski , T.M.G. Kraetzschmar , F. Krinner , P. Križan , R. Kroeger , J.F. Krohn , P. Krokovny , H. Krüger , W. Kuehn , T. Kuhr , J. Kumar , M. Kumar , R. Kumar , K. Kumara , T. Kumita , T. Kunigo , M. Künzel , S. Kurz , A. Kuzmin , P. Kvasnička , Y.J. Kwon , S. Lacaprara , Y.T. Lai , C. La Licata , K. Lalwani , T. Lam , L. Lanceri , J.S. Lange , M. Laurenza , K. Lautenbach (3) , P.J. Laycock , F.R. Le Diberder (1) , I.S. Lee , S.C. Lee , P. Leitl , D. Levit , P.M. Lewis , C. Li , L.K. Li , S.X. Li , Y.B. Li , J. Libby , K. Lieret , J. Lin , Z. Liptak , Q.Y. Liu , Z.A. Liu , D. Liventsev , S. Longo , A. Loos , A. Lozar , P. Lu , T. Lueck , F. Luetticke , T. Luo , C. Lyu , C. Macqueen , Y. Maeda , M. Maggiora , S. Maity , R. Manfredi , E. Manoni , S. Marcello , C. Marinas , A. Martini , M. Masuda , T. Matsuda , K. Matsuoka , D. Matvienko , J.A. Mckenna , J. Mcneil , F. Meggendorfer , J.C. Mei , F. Meier , M. Merola , F. Metzner , M. Milesi , C. Miller , K. Miyabayashi , H. Miyake , H. Miyata , R. Mizuk , K. Azmi , G.B. Mohanty , H. Moon , T. Moon , J.A. Mora Grimaldo , T. Morii , H.G. Moser , M. Mrvar , F. Mueller , F.J. Müller , Th. Muller , G. Muroyama , C. Murphy , R. Mussa , I. Nakamura , K.R. Nakamura , E. Nakano , M. Nakao , H. Nakayama , H. Nakazawa , Z. Natkaniec , A. Natochii , M. Nayak , G. Nazaryan , D. Neverov , C. Niebuhr , M. Niiyama , J. Ninkovic , N.K. Nisar , S. Nishida , K. Nishimura , M. Nishimura , M.H.A. Nouxman , B. Oberhof , K. Ogawa , S. Ogawa , S.L. Olsen , Y. Onishchuk , H. Ono , Y. Onuki , P. Oskin , E.R. Oxford , H. Ozaki , P. Pakhlov , G. Pakhlova , A. Paladino , T. Pang , A. Panta , E. Paoloni , S. Pardi , H. Park , S.H. Park , B. Paschen , A. Passeri , A. Pathak , S. Patra , S. Paul , T.K. Pedlar , I. Peruzzi , R. Peschke , R. Pestotnik , F. Pham , M. Piccolo , L.E. Piilonen , G. Pinna Angioni , P.L.M. Podesta-Lerma , T. Podobnik , S. Pokharel , G. Polat (3) , V. Popov , C. Praz , S. Prell , E. Prencipe , M.T. Prim , M.V. Purohit , H. Purwar , N. Rad , P. Rados , S. Raiz , R. Rasheed (2) , M. Reif , S. Reiter , M. Remnev , P.K. Resmi , I. Ripp-Baudot (2) , M. Ritter , M. Ritzert , G. Rizzo , L.B. Rizzuto , S.H. Robertson , D. Rodríguez Pérez , J.M. Roney , C. Rosenfeld , A. Rostomyan , N. Rout , M. Rozanska , G. Russo , D. Sahoo , Y. Sakai , D.A. Sanders , S. Sandilya , A. Sangal , L. Santelj , P. Sartori , Y. Sato , V. Savinov , B. Scavino , M. Schram , H. Schreeck , J. Schueler , C. Schwanda , A.J. Schwartz , B. Schwenker , R.M. Seddon , Y. Seino , A. Selce , K. Senyo , I.S. Seong , J. Serrano (3) , M.E. Sevior , C. Sfienti , V. Shebalin , C.P. Shen , H. Shibuya , J.G. Shiu , B. Shwartz , A. Sibidanov , F. Simon , J.B. Singh , S. Skambraks , K. Smith , R.J. Sobie , A. Soffer , A. Sokolov , Y. Soloviev , E. Solovieva , S. Spataro , B. Spruck , M. Starič , S. Stefkova , Z.S. Stottler , R. Stroili , J. Strube , J. Stypula , R. Sugiura , M. Sumihama , K. Sumisawa , T. Sumiyoshi , D.J. Summers , W. Sutcliffe , K. Suzuki , S.Y. Suzuki , H. Svidras , M. Tabata , M. Takahashi , M. Takizawa , U. Tamponi , S. Tanaka , K. Tanida , H. Tanigawa , N. Taniguchi , Y. Tao , P. Taras , F. Tenchini , R. Tiwary , D. Tonelli , E. Torassa , N. Toutounji , K. Trabelsi (1) , T. Tsuboyama , N. Tsuzuki , M. Uchida , I. Ueda , S. Uehara , Y. Uematsu , T. Ueno , T. Uglov , K. Unger , Y. Unno , K. Uno , S. Uno , P. Urquijo , Y. Ushiroda , Y.V. Usov , S.E. Vahsen , R. van Tonder , G.S. Varner , K.E. Varvell , A. Vinokurova , L. Vitale , V. Vorobyev , A. Vossen , B. Wach , E. Waheed , H.M. Wakeling , K. Wan , W. Wan Abdullah , B. Wang , C.H. Wang , E. Wang , M.Z. Wang , X.L. Wang , A. Warburton , M. Watanabe , S. Watanuki , J. Webb , S. Wehle , M. Welsch , C. Wessel , J. Wiechczynski , P. Wieduwilt , H. Windel , E. Won , L.J. Wu , X.P. Xu , B.D. Yabsley , S. Yamada , W. Yan , S.B. Yang , H. Ye , J. Yelton , I. Yeo , J.H. Yin , M. Yonenaga , Y.M. Yook , K. Yoshihara , T. Yoshinobu , C.Z. Yuan , G. Yuan , Y. Yusa , L. Zani (3) , J.Z. Zhang , Y. Zhang , Z. Zhang , V. Zhilich , J. Zhou , Q.D. Zhou , X.Y. Zhou , V.I. Zhukova , V. Zhulanov
F. Abudinén
  • Function : Author
I. Adachi
  • Function : Author
R. Adak
  • Function : Author
K. Adamczyk
  • Function : Author
L. Aggarwal
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P. Ahlburg
  • Function : Author
H. Ahmed
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J.K. Ahn
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H. Aihara
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N. Akopov
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A. Aloisio
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F. Ameli
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L. Andricek
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N. Anh Ky
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D.M. Asner
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H. Atmacan
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V. Aulchenko
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T. Aushev
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V. Aushev
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T. Aziz
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V. Babu
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S. Bacher
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H. Bae
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S. Baehr
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S. Bahinipati
  • Function : Author
A.M. Bakich
  • Function : Author
Sw. Banerjee
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S. Bansal
  • Function : Author
M. Barrett
  • Function : Author
G. Batignani
  • Function : Author
M. Bauer
A. Baur
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A. Beaulieu
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J. Becker
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P.K. Behera
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J.V. Bennett
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E. Bernieri
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F.U. Bernlochner
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M. Bertemes
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E. Bertholet
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M. Bessner
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S. Bettarini
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V. Bhardwaj
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B. Bhuyan
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F. Bianchi
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T. Bilka
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S. Bilokin
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D. Biswas
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A. Bobrov
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D. Bodrov
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A. Bolz
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A. Bondar
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G. Bonvicini
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A. Bozek
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M. Bračko
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P. Branchini
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N. Braun
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R.A. Briere
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T.E. Browder
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D.N. Brown
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A. Budano
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S. Bussino
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M. Campajola
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L. Cao
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G. Caria
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G. Casarosa
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C. Cecchi
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D. Červenkov
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M.C. Chang
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P. Chang
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R. Cheaib
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V. Chekelian
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C. Chen
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Y.Q. Chen
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Y.T. Chen
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B.G. Cheon
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K. Chilikin
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K. Chirapatpimol
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H.E. Cho
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K. Cho
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S.J. Cho
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S.K. Choi
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S. Choudhury
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D. Cinabro
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L. Corona
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L.M. Cremaldi
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S. Cunliffe
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T. Czank
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N. Dash
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F. Dattola
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E. De La Cruz-Burelo
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G. De Nardo
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M. de Nuccio
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G. de Pietro
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R. de Sangro
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B. Deschamps
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M. Destefanis
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S. Dey
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A. de Yta-Hernandez
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A. Di Canto
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F. Di Capua
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J. Dingfelder
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Z. Doležal
  • Function : Author
I. Domínguez Jiménez
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T.V. Dong
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M. Dorigo
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K. Dort
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D. Dossett
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S. Dubey
  • Function : Author
S. Duell
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S. Eidelman
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M. Eliachevitch
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D. Epifanov
  • Function : Author
J.E. Fast
  • Function : Author
T. Ferber
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D. Ferlewicz
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G. Finocchiaro
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S. Fiore
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P. Fischer
  • Function : Author
A. Fodor
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F. Forti
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A. Frey
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M. Friedl
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B.G. Fulsom
  • Function : Author
M. Gabriel
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A. Gabrielli
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N. Gabyshev
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E. Ganiev
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M. Garcia-Hernandez
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R. Garg
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A. Garmash
  • Function : Author
V. Gaur
  • Function : Author
A. Gaz
  • Function : Author
U. Gebauer
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A. Gellrich
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J. Gemmler
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T. Geßler
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D. Getzkow
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R. Giordano
  • Function : Author
A. Giri
  • Function : Author
A. Glazov
  • Function : Author
B. Gobbo
  • Function : Author
R. Godang
  • Function : Author
P. Goldenzweig
  • Function : Author
B. Golob
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P. Gomis
  • Function : Author
G. Gong
  • Function : Author
P. Grace
  • Function : Author
W. Gradl
  • Function : Author
E. Graziani
  • Function : Author
D. Greenwald
  • Function : Author
T. Gu
  • Function : Author
Y. Guan
  • Function : Author
K. Gudkova
  • Function : Author
C. Hadjivasiliou
  • Function : Author
S. Halder
  • Function : Author
K. Hara
  • Function : Author
T. Hara
  • Function : Author
O. Hartbrich
  • Function : Author
K. Hayasaka
  • Function : Author
H. Hayashii
  • Function : Author
S. Hazra
  • Function : Author
C. Hearty
  • Function : Author
M.T. Hedges
  • Function : Author
I. Heredia de la Cruz
  • Function : Author
M. Hernández Villanueva
  • Function : Author
A. Hershenhorn
  • Function : Author
T. Higuchi
  • Function : Author
E.C. Hill
  • Function : Author
H. Hirata
  • Function : Author
M. Hoek
  • Function : Author
M. Hohmann
  • Function : Author
S. Hollitt
  • Function : Author
T. Hotta
  • Function : Author
C.L. Hsu
  • Function : Author
Y. Hu
  • Function : Author
K. Huang
  • Function : Author
T. Humair
  • Function : Author
T. Iijima
  • Function : Author
K. Inami
  • Function : Author
G. Inguglia
  • Function : Author
J. Irakkathil Jabbar
  • Function : Author
A. Ishikawa
  • Function : Author
R. Itoh
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M. Iwasaki
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Y. Iwasaki
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S. Iwata
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P. Jackson
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W.W. Jacobs
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I. Jaegle
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D.E. Jaffe
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E.J. Jang
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M. Jeandron
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H.B. Jeon
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S. Jia
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Y. Jin
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C. Joo
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K.K. Oo
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H. Junkerkalefeld
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I. Kadenko
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J. Kahn
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H. Kakuno
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A.B. Kaliyar
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J. Kandra
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K.H. Kang
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P. Kapusta
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R. Karl
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G. Karyan
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Y. Kato
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H. Kawai
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T. Kawasaki
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C. Ketter
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H. Kichimi
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C. Kiesling
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B.H. Kim
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C.H. Kim
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D.Y. Kim
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H.J. Kim
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K.H. Kim
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K. Kim
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S.H. Kim
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Y.K. Kim
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Y. Kim
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T.D. Kimmel
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H. Kindo
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K. Kinoshita
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C. Kleinwort
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P. Kodyšs
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T. Koga
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S. Kohani
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I. Komarov
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T. Konno
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A. Korobov
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S. Korpar
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N. Kovalchuk
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E. Kovalenko
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R. Kowalewski
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T.M.G. Kraetzschmar
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F. Krinner
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P. Križan
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R. Kroeger
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J.F. Krohn
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P. Krokovny
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H. Krüger
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W. Kuehn
  • Function : Author
T. Kuhr
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J. Kumar
  • Function : Author
M. Kumar
  • Function : Author
R. Kumar
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K. Kumara
  • Function : Author
T. Kumita
  • Function : Author
T. Kunigo
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M. Künzel
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S. Kurz
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A. Kuzmin
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P. Kvasnička
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Y.J. Kwon
  • Function : Author
S. Lacaprara
  • Function : Author
Y.T. Lai
  • Function : Author
C. La Licata
  • Function : Author
K. Lalwani
  • Function : Author
T. Lam
  • Function : Author
L. Lanceri
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J.S. Lange
  • Function : Author
M. Laurenza
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P.J. Laycock
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I.S. Lee
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S.C. Lee
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P. Leitl
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D. Levit
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P.M. Lewis
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C. Li
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L.K. Li
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S.X. Li
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Y.B. Li
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J. Libby
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K. Lieret
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J. Lin
  • Function : Author
Z. Liptak
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Q.Y. Liu
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Z.A. Liu
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D. Liventsev
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S. Longo
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A. Loos
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A. Lozar
  • Function : Author
P. Lu
  • Function : Author
T. Lueck
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F. Luetticke
  • Function : Author
T. Luo
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C. Lyu
  • Function : Author
C. Macqueen
  • Function : Author
Y. Maeda
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M. Maggiora
  • Function : Author
S. Maity
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R. Manfredi
  • Function : Author
E. Manoni
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S. Marcello
  • Function : Author
C. Marinas
  • Function : Author
A. Martini
  • Function : Author
M. Masuda
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T. Matsuda
  • Function : Author
K. Matsuoka
  • Function : Author
D. Matvienko
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J.A. Mckenna
  • Function : Author
J. Mcneil
  • Function : Author
F. Meggendorfer
  • Function : Author
J.C. Mei
  • Function : Author
F. Meier
  • Function : Author
M. Merola
  • Function : Author
F. Metzner
  • Function : Author
M. Milesi
  • Function : Author
C. Miller
  • Function : Author
K. Miyabayashi
  • Function : Author
H. Miyake
  • Function : Author
H. Miyata
  • Function : Author
R. Mizuk
  • Function : Author
K. Azmi
  • Function : Author
G.B. Mohanty
  • Function : Author
H. Moon
  • Function : Author
T. Moon
  • Function : Author
J.A. Mora Grimaldo
  • Function : Author
T. Morii
  • Function : Author
H.G. Moser
  • Function : Author
M. Mrvar
  • Function : Author
F. Mueller
  • Function : Author
F.J. Müller
  • Function : Author
Th. Muller
  • Function : Author
G. Muroyama
  • Function : Author
C. Murphy
  • Function : Author
R. Mussa
  • Function : Author
I. Nakamura
  • Function : Author
K.R. Nakamura
  • Function : Author
E. Nakano
  • Function : Author
M. Nakao
  • Function : Author
H. Nakayama
  • Function : Author
H. Nakazawa
  • Function : Author
Z. Natkaniec
  • Function : Author
A. Natochii
  • Function : Author
M. Nayak
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G. Nazaryan
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Abstract

We report a measurement of the branching fraction of the semileptonic decay $B$$^{-}$ $\rightarrow$ $D$$^{0}$$\ell$$^{-}$$\bar{\nu}$$_{\ell}$ (and its charge conjugate) using 62.8 fb$^{-1}$ of $\Upsilon$(4$S$) $\rightarrow$ $B$$\bar{B}$ data recorded by the Belle II experiment at the SuperKEKB asymmetric-energy $e$$^{+}$ $e$$^{-}$ collider. The neutral charm meson is searched for in the decay mode $D$$^{0}$ $\rightarrow$ $K$$^{-}$ $\pi$$^{+}$ and combined with a properly charged identified lepton (electron or muon) to reconstruct this decay. No reconstruction of the second $B$ meson in the $\Upsilon$(4$S$) event is performed. We obtain $B$($D$$^{0}$$\ell$$^{-}$$\bar{\nu}$$_{\ell}$) = (2.29 $\pm$ 0.05 $_{stat}$ $\pm$ 0.08$_{syst}$, in agreement with the world average of this decay. We also determine the ratio of the electron to muon branching fractions to be $R$($e$/$\mu$) = 1.04 $\pm$ 0.05$_{stat}$ $\pm$ 0.03$_{syst}$ and observe no deviation from lepton universality.

Dates and versions

hal-03735743 , version 1 (21-07-2022)

Identifiers

Cite

F. Abudinén, I. Adachi, R. Adak, K. Adamczyk, L. Aggarwal, et al.. Measurement of the $B$$^{-}$ $\rightarrow$ $D$$^{0}$$\ell$$^{-}$$\bar{\nu}$$_{\ell}$ Branching Fraction in 62.8 fb$^{-1}$ of Belle II data. 2022. ⟨hal-03735743⟩
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