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First Simultaneous Determination of Inclusive and Exclusive |V_{ub}|.

Publication ,  Journal Article
Cao, L; Bernlochner, F; Tackmann, K; Adachi, I; Aihara, H; Al Said, S; Asner, DM; Atmacan, H; Aushev, T; Ayad, R; Babu, V; Bahinipati, S ...
Published in: Physical review letters
November 2023

The first simultaneous determination of the absolute value of the Cabibbo-Kobayashi-Maskawa matrix element V_{ub} using inclusive and exclusive decays is performed with the full Belle data set at the ϒ(4S) resonance, corresponding to an integrated luminosity of 711  fb^{-1}. We analyze collision events in which one B meson is fully reconstructed in hadronic modes. This allows for the reconstruction of the hadronic X_{u} system of the semileptonic b→uℓν[over ¯]_{ℓ} decay. We separate exclusive B→πℓν[over ¯]_{ℓ} decays from other inclusive B→X_{u}ℓν[over ¯]_{ℓ} and backgrounds with a two-dimensional fit that utilizes the number of charged pions in the X_{u} system and the four-momentum transfer q^{2} between the B and X_{u} systems. Combining our measurement with information from lattice QCD and QCD calculations of the inclusive partial rate as well as external experimental information on the shape of the B→πℓν[over ¯]_{ℓ} form factor, we determine |V_{ub}^{excl}|=(3.78±0.23±0.16±0.14)×10^{-3} and |V_{ub}^{incl}|=(3.88±0.20±0.31±0.09)×10^{-3}, respectively, with the uncertainties being the statistical error, systematic errors, and theory errors. The ratio of |V_{ub}^{excl}|/|V_{ub}^{incl}|=0.97±0.12 is compatible with unity.

Duke Scholars

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

November 2023

Volume

131

Issue

21

Start / End Page

211801

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

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Cao, L., Bernlochner, F., Tackmann, K., Adachi, I., Aihara, H., Al Said, S., … Belle Collaboration. (2023). First Simultaneous Determination of Inclusive and Exclusive |V_{ub}|. Physical Review Letters, 131(21), 211801. https://doi.org/10.1103/physrevlett.131.211801
Cao, L., F. Bernlochner, K. Tackmann, I. Adachi, H. Aihara, S. Al Said, D. M. Asner, et al. “First Simultaneous Determination of Inclusive and Exclusive |V_{ub}|.Physical Review Letters 131, no. 21 (November 2023): 211801. https://doi.org/10.1103/physrevlett.131.211801.
Cao L, Bernlochner F, Tackmann K, Adachi I, Aihara H, Al Said S, et al. First Simultaneous Determination of Inclusive and Exclusive |V_{ub}|. Physical review letters. 2023 Nov;131(21):211801.
Cao, L., et al. “First Simultaneous Determination of Inclusive and Exclusive |V_{ub}|.Physical Review Letters, vol. 131, no. 21, Nov. 2023, p. 211801. Epmc, doi:10.1103/physrevlett.131.211801.
Cao L, Bernlochner F, Tackmann K, Adachi I, Aihara H, Al Said S, Asner DM, Atmacan H, Aushev T, Ayad R, Babu V, Bahinipati S, Banerjee S, Behera P, Belous K, Bennett J, Bessner M, Bhuyan B, Bilka T, Biswas D, Bobrov A, Bodrov D, Borah J, Bozek A, Bračko M, Branchini P, Browder TE, Budano A, Campajola M, Červenkov D, Chang M-C, Cheon BG, Chilikin K, Cho HE, Cho K, Cho S-J, Choi S-K, Choi Y, Choudhury S, Cinabro D, Cunliffe S, Das S, de Marino G, De Nardo G, De Pietro G, Dhamija R, Di Capua F, Dingfelder J, Doležal Z, Dong TV, Ferber T, Ferlewicz D, Frey A, Fulsom BG, Gaur V, Garmash A, Giri A, Goldenzweig P, Graziani E, Gu T, Guan Y, Gudkova K, Hadjivasiliou C, Halder S, Hara T, Hartbrich O, Hayasaka K, Hayashii H, Hedges MT, Herrmann D, Hou W-S, Hsu C-L, Iijima T, Inami K, Ipsita N, Ishikawa A, Itoh R, Iwasaki M, Jacobs WW, Jang E-J, Jia S, Jin Y, Joo KK, Kalita D, Kang KH, Kiesling C, Kim CH, Kim DY, Kim K-H, Kim Y-K, Kinoshita K, Kodyš P, Konno T, Korobov A, Korpar S, Kovalenko E, Križan P, Krokovny P, Kuhr T, Kumar R, Kumara K, Kuzmin A, Kwon Y-J, Lange JS, Laurenza M, Lee SC, Lewis P, Li J, Li LK, Li Y, Libby J, Lin Y-R, Liventsev D, Luo T, Ma Y, Martini A, Masuda M, Matsuda T, Matvienko D, Maurya SK, Meier F, Merola M, Metzner F, Miyabayashi K, Mizuk R, Mohanty GB, Mrvar M, Mussa R, Nakamura I, Nakao M, Natkaniec Z, Natochii A, Nayak L, Nayak M, Nisar NK, Nishida S, Ogawa K, Ogawa S, Ono H, Oskin P, Pakhlov P, Pakhlova G, Pang T, Pardi S, Park H, Park J, Park S-H, Passeri A, Patra S, Paul S, Pedlar TK, Pestotnik R, Piilonen LE, Podobnik T, Prencipe E, Prim MT, Rout N, Rozanska M, Russo G, Sandilya S, Sangal A, Santelj L, Savinov V, Schnell G, Schwanda C, Seino Y, Senyo K, Sevior ME, Shan W, Shapkin M, Sharma C, Shen CP, Shiu J-G, Shwartz B, Sokolov A, Solovieva E, Starič M, Stottler ZS, Sumihama M, Sutcliffe W, Takizawa M, Tamponi U, Tanida K, Tenchini F, Tiwary R, Trabelsi K, Uchida M, Uglov T, Unno Y, Uno K, Uno S, Ushiroda Y, Usov Y, Vahsen SE, Varner G, Varvell KE, Vossen A, Wang D, Wang E, Wang M-Z, Watanuki S, Werbycka O, Won E, Xu X, Yabsley BD, Yan W, Yang SB, Yin JH, Yook Y, Yusa Y, Zhang ZP, Zhilich V, Zhukova V, Belle Collaboration. First Simultaneous Determination of Inclusive and Exclusive |V_{ub}|. Physical review letters. 2023 Nov;131(21):211801.

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

November 2023

Volume

131

Issue

21

Start / End Page

211801

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences