Test of Lepton-Flavor Universality in ${B\to K^\ast\ell^+\ell^-}$ Decays at Belle - Archive ouverte HAL Access content directly
Journal Articles Physical Review Letters Year : 2021

Test of Lepton-Flavor Universality in ${B\to K^\ast\ell^+\ell^-}$ Decays at Belle

A. Abdesselam , J.K. Ahn , K. Arinstein , Y. Arita , T. Aziz , I. Badhrees , S. Bahinipati , A.M. Bakich , Y. Ban , V. Bansal , E. Barberio , M. Barrett , W. Bartel , C. Beleño , K. Belous , F. Bernlochner , D. Besson , B. Bhuyan , T. Bilka , T. Bloomfield , A. Bobrov , A. Bondar , G. Bonvicini , N. Braun , F. Breibeck , G. Caria , D. Červenkov , P. Chang , Y. Chao , R. Cheaib , V. Chekelian , K.-F. Chen , R. Chistov , H.E. Cho , V. Chobanova , S.-K. Choi , J. Crnkovic , T. Czank , M. Danilov , S. Di Carlo (1) , J. Dingfelder , Z. Doležal , T.V. Dong , D. Dossett , Z. Drásal , A. Drutskoy , D. Dutta , J.E. Fast , M. Feindt , A. Frey , O. Frost , M. Gelb , J. Gemmler , F. Giordano , B. Golob , M. Grosse Perdekamp , J. Grygier , O. Grzymkowska , E. Guido , H. Guo , P. Hamer , K. Hara , T. Hara , Y. Hasegawa , J. Hasenbusch , X.H. He , M. Heck , D. Heffernan , M. Heider , A. Heller , S. Hirose , T. Horiguchi , Y. Hoshi , K. Hoshina , Y.B. Hsiung , K. Huang , M. Huschle , Y. Igarashi , M. Imamura , S. Iwata , I. Jaegle , H.B. Jeon , M. Jones , C.W. Joo , T. Julius , H. Kakuno , J.H. Kang , K.H. Kang , P. Kapusta , S.U. Kataoka , E. Kato , Y. Kato , P. Katrenko , H. Kawai , T. Kawasaki , T. Keck , C. Kiesling , B.H. Kim , C.H. Kim , H.J. Kim , H.-J. Kim , J.B. Kim , S.K. Kim , Y.J. Kim , T. Kimmel , H. Kindo , C. Kleinwort , J. Klucar , N. Kobayashi , P. Kodyš , Y. Koga , T. Konno , R.T. Kouzes , P. Križan , J.-F. Krohn , B. Kronenbitter , T. Kumita , E. Kurihara , Y. Kuroki , P. Kvasnička , Y.-T. Lai , K. Lalwani , I.S. Lee , J.K. Lee , M. Leitgab , R. Leitner , D. Levit , P. Lewis , C.H. Li , H. Li , L.K. Li , Y. Li , L. Li Gioi , K. Lieret , A. Limosani , C. Liu , Y. Liu , A. Loos , R. Louvot , P.-C. Lu , M. Lubej , D. Matvienko , Y. Mikami , K. Miyabayashi , Y. Miyachi , H. Miyake , Y. Miyazaki , S. Mohanty , H.K. Moon , T. Mori , T. Morii , H.-G. Moser , M. Mrvar , T. Müller , N. Muramatsu , Y. Nagasaka , Y. Nakahama , I. Nakamura , E. Nakano , H. Nakano , T. Nakano , H. Nakayama , H. Nakazawa , T. Nanut , K.J. Nath , Z. Natkaniec , K. Neichi , C. Ng , K. Nishimura , O. Nitoh , A. Ogawa , T. Ohshima , S. Okuno , S.L. Olsen , Y. Ono , W. Ostrowicz , C. Oswald , B. Pal , E. Panzenböck , S. Pardi , C.-S. Park , C.W. Park , K.S. Park , S. Patra , S. Paul , I. Pavelkin , T. Peng , L. Pesántez , M. Peters , K. Prasanth , K. Prothmann , M.V. Purohit , A. Rabusov , J. Rauch , B. Reisert , E. Ribežl , J. Rorie , M. Rozanska , S. Rummel , H. Sahoo , T. Saito , M. Salehi , D. Santel , T. Sanuki , J. Sasaki , N. Sasao , Y. Sato , T. Schlüter , P. Schönmeier , M. Schram , B. Schwenker , R. Seidl , D. Semmler , O. Seon , I.S. Seong , L. Shang , V. Shebalin , C.P. Shen , T.-A. Shibata , H. Shibuya , S. Shinomiya , A. Sibidanov , F. Simon , J.B. Singh , R. Sinha , K. Smith , A. Sokolov , Y. Soloviev , S. Stanič , M. Steder , Z. Stottler , J. Stypula , S. Sugihara , A. Sugiyama , M. Sumihama , K. Sumisawa , K. Suzuki , K. Suzuki , S. Suzuki , S.Y. Suzuki , Z. Suzuki , H. Takeichi , M. Tanaka , S. Tanaka , N. Taniguchi , G.N. Taylor , Y. Teramoto , T. Tsuboyama , T. Uchida , I. Ueda , S. Uehara , P. Urquijo , Y. Usov , C. van Hulse , P. Vanhoefer , K. Vervink , A. Vinokurova , A. Vossen , M.N. Wagner , E. Waheed , B. Wang , M. Watanabe , Y. Watanabe , S. Watanuki , R. Wedd , S. Wehle , I. Adachi , K. Adamczyk , H. Aihara , D.M. Asner , H. Atmacan , V. Aulchenko , T. Aushev , R. Ayad , V. Babu , P. Behera , M. Berger , V. Bhardwaj , J. Biswal , A. Bozek , M. Bračko , T.E. Browder , M. Campajola , L. Cao , M.-C. Chang , A. Chen , B.G. Cheon , K. Chilikin , K. Cho , Y. Choi , S. Choudhury , D. Cinabro , S. Cunliffe , N. Dash , G. De Nardo , F. Di Capua , S. Dubey , S. Eidelman , D. Epifanov , T. Ferber , B.G. Fulsom , R. Garg , V. Gaur , N. Gabyshev , A. Garmash , A. Giri , P. Goldenzweig , D. Greenwald , Y. Guan , J. Haba , O. Hartbrich , K. Hayasaka , H. Hayashii , M.T. Hedges , T. Higuchi , W.-S. Hou , C.-L. Hsu , T. Iijima , K. Inami , G. Inguglia , A. Ishikawa , R. Itoh , M. Iwasaki , Y. Iwasaki , W.W. Jacobs , S. Jia , Y. Jin , D. Joffe , J. Kahn , A.B. Kaliyar , G. Karyan , H. Kichimi , D.Y. Kim , K.T. Kim , S.H. Kim , K. Kinoshita , I. Komarov , S. Korpar , D. Kotchetkov , R. Kroeger , P. Krokovny , T. Kuhr , R. Kulasiri , R. Kumar , K. Kumara , A. Kuzmin , Y.-J. Kwon , J.S. Lange , J.Y. Lee , S.C. Lee , Y.B. Li , J. Libby , Z. Liptak , D. Liventsev , T. Luo , J. Macnaughton , M. Masuda , T. Matsuda , J.T. Mcneil , M. Merola , F. Metzner , H. Miyata , R. Mizuk , G.B. Mohanty , T.J. Moon , R. Mussa , M. Nakao , A. Natochii , M. Nayak , C. Niebuhr , M. Niiyama , N.K. Nisar , S. Nishida , K. Ogawa , S. Ogawa , H. Ono , Y. Onuki , P. Pakhlov , G. Pakhlova , H. Park , S.-H. Park , T.K. Pedlar , R. Pestotnik , L.E. Piilonen , T. Podobnik , V. Popov , E. Prencipe , M.T. Prim , P.K. Resmi , M. Ritter , A. Rostomyan , N. Rout , G. Russo , D. Sahoo , Y. Sakai , S. Sandilya , S. Al Said , L. Santelj , V. Savinov , O. Schneider , G. Schnell , J. Schueler , C. Schwanda , A.J. Schwartz , Y. Seino , K. Senyo , M.E. Sevior , M. Shapkin , J.-G. Shiu , B. Shwartz , E. Solovieva , M. Starič , J.F. Strube , T. Sumiyoshi , W. Sutcliffe , M. Takizawa , U. Tamponi , K. Tanida , Y. Tao , F. Tenchini , K. Trabelsi (1) , M. Uchida , T. Uglov , Y. Unno , S. Uno , Y. Ushiroda , S.E. Vahsen , R. van Tonder , G. Varner , K.E. Varvell , V. Vorobyev , C.H. Wang , M.-Z. Wang , P. Wang , X.L. Wang , E. Widmann , J. Wiechczynski , K.M. Williams , E. Won , X. Xu , B.D. Yabsley , S. Yamada , H. Yamamoto , Y. Yamashita , S.B. Yang , S. Yashchenko , H. Ye , J. Yelton , J.H. Yin , Y. Yook , C.Z. Yuan , Y. Yusa , S. Zakharov , C.C. Zhang , J. Zhang , L.M. Zhang , Z.P. Zhang , L. Zhao , V. Zhilich , V. Zhukova , V. Zhulanov , T. Zivko , A. Zupanc , N. Zwahlen
A. Abdesselam
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J.K. Ahn
  • Function : Author
K. Arinstein
  • Function : Author
Y. Arita
  • Function : Author
T. Aziz
  • Function : Author
I. Badhrees
  • Function : Author
S. Bahinipati
  • Function : Author
A.M. Bakich
  • Function : Author
Y. Ban
  • Function : Author
V. Bansal
  • Function : Author
E. Barberio
  • Function : Author
M. Barrett
  • Function : Author
W. Bartel
  • Function : Author
C. Beleño
  • Function : Author
K. Belous
  • Function : Author
F. Bernlochner
  • Function : Author
D. Besson
  • Function : Author
B. Bhuyan
  • Function : Author
T. Bilka
  • Function : Author
T. Bloomfield
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A. Bobrov
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A. Bondar
  • Function : Author
G. Bonvicini
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N. Braun
  • Function : Author
F. Breibeck
  • Function : Author
G. Caria
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D. Červenkov
  • Function : Author
P. Chang
  • Function : Author
Y. Chao
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R. Cheaib
  • Function : Author
V. Chekelian
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K.-F. Chen
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R. Chistov
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H.E. Cho
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V. Chobanova
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S.-K. Choi
  • Function : Author
J. Crnkovic
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T. Czank
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M. Danilov
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J. Dingfelder
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Z. Doležal
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T.V. Dong
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D. Dossett
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Z. Drásal
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A. Drutskoy
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D. Dutta
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J.E. Fast
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M. Feindt
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A. Frey
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O. Frost
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M. Gelb
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J. Gemmler
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F. Giordano
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B. Golob
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M. Grosse Perdekamp
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J. Grygier
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O. Grzymkowska
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E. Guido
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H. Guo
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P. Hamer
K. Hara
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T. Hara
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Y. Hasegawa
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J. Hasenbusch
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X.H. He
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M. Heck
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D. Heffernan
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M. Heider
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A. Heller
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S. Hirose
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T. Horiguchi
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Y. Hoshi
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K. Hoshina
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Y.B. Hsiung
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K. Huang
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M. Huschle
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Y. Igarashi
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M. Imamura
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S. Iwata
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I. Jaegle
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H.B. Jeon
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M. Jones
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C.W. Joo
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T. Julius
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H. Kakuno
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J.H. Kang
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K.H. Kang
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P. Kapusta
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S.U. Kataoka
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E. Kato
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Y. Kato
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P. Katrenko
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H. Kawai
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T. Kawasaki
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T. Keck
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C. Kiesling
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B.H. Kim
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C.H. Kim
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H.J. Kim
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H.-J. Kim
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J.B. Kim
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S.K. Kim
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Y.J. Kim
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T. Kimmel
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H. Kindo
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C. Kleinwort
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J. Klucar
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N. Kobayashi
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P. Kodyš
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Y. Koga
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T. Konno
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R.T. Kouzes
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P. Križan
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J.-F. Krohn
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B. Kronenbitter
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T. Kumita
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E. Kurihara
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Y. Kuroki
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P. Kvasnička
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Y.-T. Lai
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K. Lalwani
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I.S. Lee
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J.K. Lee
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M. Leitgab
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R. Leitner
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D. Levit
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P. Lewis
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C.H. Li
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H. Li
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L.K. Li
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Y. Li
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L. Li Gioi
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K. Lieret
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A. Limosani
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C. Liu
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Y. Liu
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A. Loos
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R. Louvot
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P.-C. Lu
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M. Lubej
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D. Matvienko
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Y. Mikami
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K. Miyabayashi
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Y. Miyachi
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H. Miyake
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Y. Miyazaki
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S. Mohanty
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H.K. Moon
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T. Mori
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M. Mrvar
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N. Muramatsu
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Y. Nagasaka
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Y. Nakahama
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I. Nakamura
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E. Nakano
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H. Nakano
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T. Nakano
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H. Nakayama
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H. Nakazawa
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T. Nanut
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K.J. Nath
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Z. Natkaniec
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K. Neichi
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C. Ng
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K. Nishimura
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O. Nitoh
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A. Ogawa
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T. Ohshima
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S. Okuno
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S.L. Olsen
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Y. Ono
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W. Ostrowicz
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C. Oswald
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B. Pal
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E. Panzenböck
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S. Pardi
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C.-S. Park
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C.W. Park
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K.S. Park
  • Function : Author
S. Patra
  • Function : Author
S. Paul
  • Function : Author
I. Pavelkin
  • Function : Author
T. Peng
  • Function : Author
L. Pesántez
  • Function : Author
M. Peters
  • Function : Author
K. Prasanth
  • Function : Author
K. Prothmann
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M.V. Purohit
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A. Rabusov
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J. Rauch
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B. Reisert
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E. Ribežl
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J. Rorie
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M. Rozanska
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S. Rummel
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H. Sahoo
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T. Saito
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M. Salehi
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D. Santel
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T. Sanuki
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J. Sasaki
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N. Sasao
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Y. Sato
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T. Schlüter
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P. Schönmeier
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M. Schram
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B. Schwenker
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R. Seidl
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D. Semmler
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O. Seon
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I.S. Seong
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L. Shang
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V. Shebalin
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C.P. Shen
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T.-A. Shibata
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H. Shibuya
S. Shinomiya
A. Sibidanov
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F. Simon
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J.B. Singh
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R. Sinha
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K. Smith
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A. Sokolov
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Y. Soloviev
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S. Stanič
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M. Steder
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Z. Stottler
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J. Stypula
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S. Sugihara
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A. Sugiyama
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M. Sumihama
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K. Sumisawa
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K. Suzuki
  • Function : Author
K. Suzuki
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S. Suzuki
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S.Y. Suzuki
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Z. Suzuki
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H. Takeichi
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M. Tanaka
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S. Tanaka
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N. Taniguchi
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G.N. Taylor
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Y. Teramoto
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T. Tsuboyama
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T. Uchida
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I. Ueda
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S. Uehara
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P. Urquijo
  • Function : Author
Y. Usov
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C. van Hulse
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P. Vanhoefer
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K. Vervink
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A. Vinokurova
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A. Vossen
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M.N. Wagner
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E. Waheed
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B. Wang
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M. Watanabe
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Y. Watanabe
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S. Watanuki
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R. Wedd
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S. Wehle
  • Function : Author
I. Adachi
  • Function : Author
K. Adamczyk
H. Aihara
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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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R. Ayad
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V. Babu
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P. Behera
M. Berger
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V. Bhardwaj
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J. Biswal
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A. Bozek
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M. Bračko
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T.E. Browder
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M. Campajola
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L. Cao
  • Function : Author
M.-C. Chang
  • Function : Author
A. Chen
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B.G. Cheon
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K. Chilikin
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K. Cho
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Y. Choi
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S. Choudhury
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D. Cinabro
  • Function : Author
S. Cunliffe
  • Function : Author
N. Dash
  • Function : Author
G. De Nardo
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F. Di Capua
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S. Dubey
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S. Eidelman
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D. Epifanov
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T. Ferber
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B.G. Fulsom
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R. Garg
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V. Gaur
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N. Gabyshev
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A. Garmash
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A. Giri
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P. Goldenzweig
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D. Greenwald
  • Function : Author
Y. Guan
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J. Haba
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O. Hartbrich
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K. Hayasaka
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H. Hayashii
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M.T. Hedges
  • Function : Author
T. Higuchi
  • Function : Author
W.-S. Hou
  • Function : Author
C.-L. Hsu
  • Function : Author
T. Iijima
  • Function : Author
K. Inami
  • Function : Author
G. Inguglia
  • Function : Author
A. Ishikawa
  • Function : Author
R. Itoh
  • Function : Author
M. Iwasaki
  • Function : Author
Y. Iwasaki
W.W. Jacobs
  • Function : Author
S. Jia
  • Function : Author
Y. Jin
  • Function : Author
D. Joffe
  • Function : Author
J. Kahn
  • Function : Author
A.B. Kaliyar
  • Function : Author
G. Karyan
  • Function : Author
H. Kichimi
  • Function : Author
D.Y. Kim
K.T. Kim
  • Function : Author
S.H. Kim
  • Function : Author
K. Kinoshita
  • Function : Author
I. Komarov
  • Function : Author
S. Korpar
  • Function : Author
D. Kotchetkov
  • Function : Author
R. Kroeger
  • Function : Author
P. Krokovny
  • Function : Author
T. Kuhr
  • Function : Author
R. Kulasiri
  • Function : Author
R. Kumar
  • Function : Author
K. Kumara
  • Function : Author
A. Kuzmin
  • Function : Author
Y.-J. Kwon
  • Function : Author
J.S. Lange
  • Function : Author
J.Y. Lee
  • Function : Author
S.C. Lee
  • Function : Author
Y.B. Li
  • Function : Author
J. Libby
  • Function : Author
Z. Liptak
  • Function : Author
D. Liventsev
  • Function : Author
T. Luo
  • Function : Author
J. Macnaughton
  • Function : Author
M. Masuda
  • Function : Author
T. Matsuda
  • Function : Author
J.T. Mcneil
  • Function : Author
M. Merola
  • Function : Author
F. Metzner
  • Function : Author
H. Miyata
  • Function : Author
R. Mizuk
  • Function : Author
G.B. Mohanty
  • Function : Author
T.J. Moon
  • Function : Author
R. Mussa
  • Function : Author
M. Nakao
  • Function : Author
A. Natochii
  • Function : Author
M. Nayak
  • Function : Author
C. Niebuhr
  • Function : Author
M. Niiyama
  • Function : Author
N.K. Nisar
  • Function : Author
S. Nishida
  • Function : Author
K. Ogawa
  • Function : Author
S. Ogawa
  • Function : Author
H. Ono
  • Function : Author
Y. Onuki
  • Function : Author
P. Pakhlov
  • Function : Author
G. Pakhlova
  • Function : Author
H. Park
  • Function : Author
S.-H. Park
  • Function : Author
T.K. Pedlar
  • Function : Author
R. Pestotnik
  • Function : Author
L.E. Piilonen
  • Function : Author
T. Podobnik
  • Function : Author
V. Popov
  • Function : Author
E. Prencipe
  • Function : Author
M.T. Prim
  • Function : Author
P.K. Resmi
  • Function : Author
M. Ritter
  • Function : Author
A. Rostomyan
  • Function : Author
N. Rout
  • Function : Author
G. Russo
  • Function : Author
D. Sahoo
  • Function : Author
Y. Sakai
  • Function : Author
S. Sandilya
  • Function : Author
S. Al Said
L. Santelj
  • Function : Author
V. Savinov
  • Function : Author
O. Schneider
  • Function : Author
G. Schnell
  • Function : Author
J. Schueler
  • Function : Author
C. Schwanda
  • Function : Author
A.J. Schwartz
  • Function : Author
Y. Seino
  • Function : Author
K. Senyo
  • Function : Author
M.E. Sevior
  • Function : Author
M. Shapkin
  • Function : Author
J.-G. Shiu
  • Function : Author
B. Shwartz
  • Function : Author
E. Solovieva
  • Function : Author
M. Starič
  • Function : Author
J.F. Strube
  • Function : Author
T. Sumiyoshi
  • Function : Author
W. Sutcliffe
  • Function : Author
M. Takizawa
  • Function : Author
U. Tamponi
  • Function : Author
K. Tanida
  • Function : Author
Y. Tao
  • Function : Author
F. Tenchini
  • Function : Author
M. Uchida
  • Function : Author
T. Uglov
  • Function : Author
Y. Unno
  • Function : Author
S. Uno
  • Function : Author
Y. Ushiroda
  • Function : Author
S.E. Vahsen
  • Function : Author
R. van Tonder
  • Function : Author
G. Varner
  • Function : Author
K.E. Varvell
  • Function : Author
V. Vorobyev
  • Function : Author
C.H. Wang
  • Function : Author
M.-Z. Wang
  • Function : Author
P. Wang
  • Function : Author
X.L. Wang
  • Function : Author
E. Widmann
  • Function : Author
J. Wiechczynski
  • Function : Author
K.M. Williams
  • Function : Author
E. Won
  • Function : Author
X. Xu
  • Function : Author
B.D. Yabsley
  • Function : Author
S. Yamada
  • Function : Author
H. Yamamoto
  • Function : Author
Y. Yamashita
  • Function : Author
S.B. Yang
  • Function : Author
S. Yashchenko
  • Function : Author
H. Ye
  • Function : Author
J. Yelton
  • Function : Author
J.H. Yin
  • Function : Author
Y. Yook
  • Function : Author
C.Z. Yuan
  • Function : Author
Y. Yusa
  • Function : Author
S. Zakharov
  • Function : Author
C.C. Zhang
  • Function : Author
J. Zhang
  • Function : Author
L.M. Zhang
  • Function : Author
Z.P. Zhang
  • Function : Author
L. Zhao
  • Function : Author
V. Zhilich
  • Function : Author
V. Zhukova
  • Function : Author
V. Zhulanov
  • Function : Author
T. Zivko
  • Function : Author
A. Zupanc
  • Function : Author
N. Zwahlen
  • Function : Author

Abstract

We present a measurement of RK*, the branching fraction ratio B(B→K*μ+μ-)/B(B→K*e+e-), for both charged and neutral B mesons. The ratio for the charged case RK*+ is the first measurement ever performed. In addition, we report absolute branching fractions for the individual modes in bins of the squared dilepton invariant mass q2. The analysis is based on a data sample of 711  fb-1, containing 772×106  BB¯ events, recorded at the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. The obtained results are consistent with standard model expectations.

Dates and versions

hal-02116555 , version 1 (01-05-2019)

Identifiers

Cite

A. Abdesselam, J.K. Ahn, K. Arinstein, Y. Arita, T. Aziz, et al.. Test of Lepton-Flavor Universality in ${B\to K^\ast\ell^+\ell^-}$ Decays at Belle. Physical Review Letters, 2021, 126 (16), pp.161801. ⟨10.1103/PhysRevLett.126.161801⟩. ⟨hal-02116555⟩
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