Measurement of Differential Branching Fractions of Inclusive B →xuℓ+νℓ Decays

L. Cao; W. Sutcliffe; R. Van Tonder; F. U. Bernlochner; I. Adachi; H. Aihara; D. M. Asner; T. Aushev; R. Ayad; V. Babu; S. Bahinipati; P. Behera; K. Belous; J. Bennett; M. Bessner; T. Bilka; J. Biswal; A. Bobrov; M. Bračko; P. Branchini; T. E. Browder; A. Budano; M. Campajola; D. Červenkov; M. C. Chang; P. Chang; B. G. Cheon; K. Chilikin; H. E. Cho; K. Cho; S. J. Cho; Y. Choi; S. Choudhury; D. Cinabro; S. Cunliffe; T. Czank; N. Dash; G. De Pietro; R. Dhamija; F. Di Capua; J. Dingfelder; Z. DoleŽal; T. V. Dong; S. Dubey; D. Epifanov; T. Ferber; D. Ferlewicz; A. Frey; B. G. Fulsom; R. Garg; V. Gaur; N. Gabyshev; A. Garmash; A. Giri; P. Goldenzweig; T. Gu; K. Gudkova; S. Halder; T. Hara; O. Hartbrich; K. Hayasaka; M. Hernandez Villanueva; W. S. Hou; C. L. Hsu; K. Inami; A. Ishikawa; R. Itoh; M. Iwasaki; W. W. Jacobs; E. J. Jang; S. Jia; Y. Jin; K. K. Joo; J. Kahn; K. H. Kang; H. Kichimi; C. Kiesling; C. H. Kim; D. Y. Kim; S. H. Kim; Y. K. Kim; T. D. Kimmel; K. Kinoshita; P. Kodyš; T. Konno; A. Korobov; S. Korpar; E. Kovalenko; P. KriŽan; R. Kroeger; P. Krokovny; T. Kuhr; R. Kulasiri; M. Kumar; R. Kumar; K. Kumara; A. Kuzmin; Y. J. Kwon; S. C. Lee; C. H. Li; J. Li; L. K. Li; Y. B. Li; L. Li Gioi; J. Libby; K. Lieret; D. Liventsev; C. Macqueen; M. Masuda; M. Merola; F. Metzner; K. Miyabayashi; R. Mizuk; G. B. Mohanty; S. Mohanty; M. Mrvar; M. Nakao; A. Natochii; L. Nayak; M. Niiyama; N. K. Nisar; S. Nishida; K. Nishimura; S. Ogawa; H. Ono; Y. Onuki; P. Oskin; G. Pakhlova; S. Pardi; H. Park; S. H. Park; A. Passeri; S. Patra; S. Paul; T. K. Pedlar; L. E. Piilonen; T. Podobnik; V. Popov; E. Prencipe; M. T. Prim; M. Röhrken; A. Rostomyan; N. Rout; M. Rozanska; G. Russo; D. Sahoo; S. Sandilya; A. Sangal; L. Santelj; T. Sanuki; V. Savinov; G. Schnell; J. Schueler; C. Schwanda; A. J. Schwartz; Y. Seino; K. Senyo; M. E. Sevior; M. Shapkin; C. Sharma; C. P. Shen; J. G. Shiu; B. Shwartz; F. Simon; A. Sokolov; E. Solovieva; M. Starič; J. F. Strube; M. Sumihama; T. Sumiyoshi; M. Takizawa; U. Tamponi; K. Tanida; Y. Tao; F. Tenchini; K. Trabelsi; M. Uchida; T. Uglov; S. Uno; P. Urquijo; S. E. Vahsen; G. Varner; K. E. Varvell; E. Waheed; C. H. Wang; E. Wang; M. Z. Wang; P. Wang; X. L. Wang; M. Watanabe; S. Watanuki; O. Werbycka; E. Won; B. D. Yabsley; W. Yan; S. B. Yang; H. Ye; J. H. Yin; Z. P. Zhang; V. Zhilich; V. Zhukova

doi:10.1103/PhysRevLett.127.261801

Measurement of Differential Branching Fractions of Inclusive B →xuℓ+νℓ Decays

L. Cao, W. Sutcliffe, R. Van Tonder, F. U. Bernlochner, I. Adachi, H. Aihara, D. M. Asner, T. Aushev, R. Ayad, V. Babu, S. Bahinipati, P. Behera, K. Belous, J. Bennett, M. Bessner, T. Bilka, J. Biswal, A. Bobrov, M. Bračko, P. BranchiniT. E. Browder, A. Budano, M. Campajola, D. Červenkov, M. C. Chang, P. Chang, B. G. Cheon, K. Chilikin, H. E. Cho, K. Cho, S. J. Cho, Y. Choi, S. Choudhury, D. Cinabro, S. Cunliffe, T. Czank, N. Dash, G. De Pietro, R. Dhamija, F. Di Capua, J. Dingfelder, Z. DoleŽal, T. V. Dong, S. Dubey, D. Epifanov, T. Ferber, D. Ferlewicz, A. Frey, B. G. Fulsom, R. Garg, V. Gaur, N. Gabyshev, A. Garmash, A. Giri, P. Goldenzweig, T. Gu, K. Gudkova, S. Halder, T. Hara, O. Hartbrich, K. Hayasaka, M. Hernandez Villanueva, W. S. Hou, C. L. Hsu, K. Inami, A. Ishikawa, R. Itoh, M. Iwasaki, W. W. Jacobs, E. J. Jang, S. Jia, Y. Jin, K. K. Joo, J. Kahn, K. H. Kang, H. Kichimi, C. Kiesling, C. H. Kim, D. Y. Kim, S. H. Kim, Y. K. Kim, T. D. Kimmel, K. Kinoshita, P. Kodyš, T. Konno, A. Korobov, S. Korpar, E. Kovalenko, P. KriŽan, R. Kroeger, P. Krokovny, T. Kuhr, R. Kulasiri, M. Kumar, R. Kumar, K. Kumara, A. Kuzmin, Y. J. Kwon, S. C. Lee, C. H. Li, J. Li, L. K. Li, Y. B. Li, L. Li Gioi, J. Libby, K. Lieret, D. Liventsev, C. Macqueen, M. Masuda, M. Merola, F. Metzner, K. Miyabayashi, R. Mizuk, G. B. Mohanty, S. Mohanty, M. Mrvar, M. Nakao, A. Natochii, L. Nayak, M. Niiyama, N. K. Nisar, S. Nishida, K. Nishimura, S. Ogawa, H. Ono, Y. Onuki, P. Oskin, G. Pakhlova, S. Pardi, H. Park, S. H. Park, A. Passeri, S. Patra, S. Paul, T. K. Pedlar, L. E. Piilonen, T. Podobnik, V. Popov, E. Prencipe, M. T. Prim, M. Röhrken, A. Rostomyan, N. Rout, M. Rozanska, G. Russo, D. Sahoo, S. Sandilya, A. Sangal, L. Santelj, T. Sanuki, V. Savinov, G. Schnell, J. Schueler, C. Schwanda, A. J. Schwartz, Y. Seino, K. Senyo, M. E. Sevior, M. Shapkin, C. Sharma, C. P. Shen, J. G. Shiu, B. Shwartz, F. Simon, A. Sokolov, E. Solovieva, M. Starič, J. F. Strube, M. Sumihama, T. Sumiyoshi, M. Takizawa, U. Tamponi, K. Tanida, Y. Tao, F. Tenchini, K. Trabelsi, M. Uchida, T. Uglov, S. Uno, P. Urquijo, S. E. Vahsen, G. Varner, K. E. Varvell, E. Waheed, C. H. Wang, E. Wang, M. Z. Wang, P. Wang, X. L. Wang, M. Watanabe, S. Watanuki, O. Werbycka, E. Won, B. D. Yabsley, W. Yan, S. B. Yang, H. Ye, J. H. Yin, Z. P. Zhang, V. Zhilich, V. Zhukova

Chair of Physics I

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

The first measurements of differential branching fractions of inclusive semileptonic B→Xuℓ+νℓ decays are performed using the full Belle data set of 711 fb-1 of integrated luminosity at the (4S) resonance and for ℓ=e, μ. With the availability of these measurements, new avenues for future shape-function model-independent determinations of the Cabibbo-Kobayashi-Maskawa matrix element |Vub| can be pursued to gain new insights in the existing tension with respect to exclusive determinations. The differential branching fractions are reported as a function of the lepton energy, the four-momentum-transfer squared, light-cone momenta, the hadronic mass, and the hadronic mass squared. They are obtained by subtracting the backgrounds from semileptonic B→Xcℓ+νℓ decays and other processes, and corrected for resolution and acceptance effects.

Original language	English
Article number	A87
Journal	Physical Review Letters
Volume	127
Issue number	26
DOIs	https://doi.org/10.1103/PhysRevLett.127.261801
State	Published - 24 Dec 2021

Access to Document

10.1103/PhysRevLett.127.261801

Cite this

Cao, L., Sutcliffe, W., Van Tonder, R., Bernlochner, F. U., Adachi, I., Aihara, H., Asner, D. M., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Behera, P., Belous, K., Bennett, J., Bessner, M., Bilka, T., Biswal, J., Bobrov, A., Bračko, M., ... Zhukova, V. (2021). Measurement of Differential Branching Fractions of Inclusive B →xuℓ+νℓ Decays. Physical Review Letters, 127(26), Article A87. https://doi.org/10.1103/PhysRevLett.127.261801

@article{b4d3cd629c8f4c099a187c3154a5cd0d,

title = "Measurement of Differential Branching Fractions of Inclusive B →xuℓ+νℓ Decays",

abstract = "The first measurements of differential branching fractions of inclusive semileptonic B→Xuℓ+νℓ decays are performed using the full Belle data set of 711 fb-1 of integrated luminosity at the (4S) resonance and for ℓ=e, μ. With the availability of these measurements, new avenues for future shape-function model-independent determinations of the Cabibbo-Kobayashi-Maskawa matrix element |Vub| can be pursued to gain new insights in the existing tension with respect to exclusive determinations. The differential branching fractions are reported as a function of the lepton energy, the four-momentum-transfer squared, light-cone momenta, the hadronic mass, and the hadronic mass squared. They are obtained by subtracting the backgrounds from semileptonic B→Xcℓ+νℓ decays and other processes, and corrected for resolution and acceptance effects.",

author = "L. Cao and W. Sutcliffe and {Van Tonder}, R. and Bernlochner, {F. U.} and I. Adachi and H. Aihara and Asner, {D. M.} and T. Aushev and R. Ayad and V. Babu and S. Bahinipati and P. Behera and K. Belous and J. Bennett and M. Bessner and T. Bilka and J. Biswal and A. Bobrov and M. Bra{\v c}ko and P. Branchini and Browder, {T. E.} and A. Budano and M. Campajola and D. {\v C}ervenkov and Chang, {M. C.} and P. Chang and Cheon, {B. G.} and K. Chilikin and Cho, {H. E.} and K. Cho and Cho, {S. J.} and Y. Choi and S. Choudhury and D. Cinabro and S. Cunliffe and T. Czank and N. Dash and {De Pietro}, G. and R. Dhamija and {Di Capua}, F. and J. Dingfelder and Z. Dole{\v Z}al and Dong, {T. V.} and S. Dubey and D. Epifanov and T. Ferber and D. Ferlewicz and A. Frey and Fulsom, {B. G.} and R. Garg and V. Gaur and N. Gabyshev and A. Garmash and A. Giri and P. Goldenzweig and T. Gu and K. Gudkova and S. Halder and T. Hara and O. Hartbrich and K. Hayasaka and {Hernandez Villanueva}, M. and Hou, {W. S.} and Hsu, {C. L.} and K. Inami and A. Ishikawa and R. Itoh and M. Iwasaki and Jacobs, {W. W.} and Jang, {E. J.} and S. Jia and Y. Jin and Joo, {K. K.} and J. Kahn and Kang, {K. H.} and H. Kichimi and C. Kiesling and Kim, {C. H.} and Kim, {D. Y.} and Kim, {S. H.} and Kim, {Y. K.} and Kimmel, {T. D.} and K. Kinoshita and P. Kody{\v s} and T. Konno and A. Korobov and S. Korpar and E. Kovalenko and P. Kri{\v Z}an and R. Kroeger and P. Krokovny and T. Kuhr and R. Kulasiri and M. Kumar and R. Kumar and K. Kumara and A. Kuzmin and Kwon, {Y. J.} and Lee, {S. C.} and Li, {C. H.} and J. Li and Li, {L. K.} and Li, {Y. B.} and {Li Gioi}, L. and J. Libby and K. Lieret and D. Liventsev and C. Macqueen and M. Masuda and M. Merola and F. Metzner and K. Miyabayashi and R. Mizuk and Mohanty, {G. B.} and S. Mohanty and M. Mrvar and M. Nakao and A. Natochii and L. Nayak and M. Niiyama and Nisar, {N. K.} and S. Nishida and K. Nishimura and S. Ogawa and H. Ono and Y. Onuki and P. Oskin and G. Pakhlova and S. Pardi and H. Park and Park, {S. H.} and A. Passeri and S. Patra and S. Paul and Pedlar, {T. K.} and Piilonen, {L. E.} and T. Podobnik and V. Popov and E. Prencipe and Prim, {M. T.} and M. R{\"o}hrken and A. Rostomyan and N. Rout and M. Rozanska and G. Russo and D. Sahoo and S. Sandilya and A. Sangal and L. Santelj and T. Sanuki and V. Savinov and G. Schnell and J. Schueler and C. Schwanda and Schwartz, {A. J.} and Y. Seino and K. Senyo and Sevior, {M. E.} and M. Shapkin and C. Sharma and Shen, {C. P.} and Shiu, {J. G.} and B. Shwartz and F. Simon and A. Sokolov and E. Solovieva and M. Stari{\v c} and Strube, {J. F.} and M. Sumihama and T. Sumiyoshi and M. Takizawa and U. Tamponi and K. Tanida and Y. Tao and F. Tenchini and K. Trabelsi and M. Uchida and T. Uglov and S. Uno and P. Urquijo and Vahsen, {S. E.} and G. Varner and Varvell, {K. E.} and E. Waheed and Wang, {C. H.} and E. Wang and Wang, {M. Z.} and P. Wang and Wang, {X. L.} and M. Watanabe and S. Watanuki and O. Werbycka and E. Won and Yabsley, {B. D.} and W. Yan and Yang, {S. B.} and H. Ye and Yin, {J. H.} and Zhang, {Z. P.} and V. Zhilich and V. Zhukova",

note = "Publisher Copyright: {\textcopyright} 2021 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.",

year = "2021",

month = dec,

day = "24",

doi = "10.1103/PhysRevLett.127.261801",

language = "English",

volume = "127",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "26",

}

Cao, L, Sutcliffe, W, Van Tonder, R, Bernlochner, FU, Adachi, I, Aihara, H, Asner, DM, Aushev, T, Ayad, R, Babu, V, Bahinipati, S, Behera, P, Belous, K, Bennett, J, Bessner, M, Bilka, T, Biswal, J, Bobrov, A, Bračko, M, Branchini, P, Browder, TE, Budano, A, Campajola, M, Červenkov, D, Chang, MC, Chang, P, Cheon, BG, Chilikin, K, Cho, HE, Cho, K, Cho, SJ, Choi, Y, Choudhury, S, Cinabro, D, Cunliffe, S, Czank, T, Dash, N, De Pietro, G, Dhamija, R, Di Capua, F, Dingfelder, J, DoleŽal, Z, Dong, TV, Dubey, S, Epifanov, D, Ferber, T, Ferlewicz, D, Frey, A, Fulsom, BG, Garg, R, Gaur, V, Gabyshev, N, Garmash, A, Giri, A, Goldenzweig, P, Gu, T, Gudkova, K, Halder, S, Hara, T, Hartbrich, O, Hayasaka, K, Hernandez Villanueva, M, Hou, WS, Hsu, CL, Inami, K, Ishikawa, A, Itoh, R, Iwasaki, M, Jacobs, WW, Jang, EJ, Jia, S, Jin, Y, Joo, KK, Kahn, J, Kang, KH, Kichimi, H, Kiesling, C, Kim, CH, Kim, DY, Kim, SH, Kim, YK, Kimmel, TD, Kinoshita, K, Kodyš, P, Konno, T, Korobov, A, Korpar, S, Kovalenko, E, KriŽan, P, Kroeger, R, Krokovny, P, Kuhr, T, Kulasiri, R, Kumar, M, Kumar, R, Kumara, K, Kuzmin, A, Kwon, YJ, Lee, SC, Li, CH, Li, J, Li, LK, Li, YB, Li Gioi, L, Libby, J, Lieret, K, Liventsev, D, Macqueen, C, Masuda, M, Merola, M, Metzner, F, Miyabayashi, K, Mizuk, R, Mohanty, GB, Mohanty, S, Mrvar, M, Nakao, M, Natochii, A, Nayak, L, Niiyama, M, Nisar, NK, Nishida, S, Nishimura, K, Ogawa, S, Ono, H, Onuki, Y, Oskin, P, Pakhlova, G, Pardi, S, Park, H, Park, SH, Passeri, A, Patra, S, Paul, S, Pedlar, TK, Piilonen, LE, Podobnik, T, Popov, V, Prencipe, E, Prim, MT, Röhrken, M, Rostomyan, A, Rout, N, Rozanska, M, Russo, G, Sahoo, D, Sandilya, S, Sangal, A, Santelj, L, Sanuki, T, Savinov, V, Schnell, G, Schueler, J, Schwanda, C, Schwartz, AJ, Seino, Y, Senyo, K, Sevior, ME, Shapkin, M, Sharma, C, Shen, CP, Shiu, JG, Shwartz, B, Simon, F, Sokolov, A, Solovieva, E, Starič, M, Strube, JF, Sumihama, M, Sumiyoshi, T, Takizawa, M, Tamponi, U, Tanida, K, Tao, Y, Tenchini, F, Trabelsi, K, Uchida, M, Uglov, T, Uno, S, Urquijo, P, Vahsen, SE, Varner, G, Varvell, KE, Waheed, E, Wang, CH, Wang, E, Wang, MZ, Wang, P, Wang, XL, Watanabe, M, Watanuki, S, Werbycka, O, Won, E, Yabsley, BD, Yan, W, Yang, SB, Ye, H, Yin, JH, Zhang, ZP, Zhilich, V & Zhukova, V 2021, 'Measurement of Differential Branching Fractions of Inclusive B →xuℓ+νℓ Decays', Physical Review Letters, vol. 127, no. 26, A87. https://doi.org/10.1103/PhysRevLett.127.261801

TY - JOUR

T1 - Measurement of Differential Branching Fractions of Inclusive B →xuℓ+νℓ Decays

AU - Cao, L.

AU - Sutcliffe, W.

AU - Van Tonder, R.

AU - Bernlochner, F. U.

AU - Adachi, I.

AU - Aihara, H.

AU - Asner, D. M.

AU - Aushev, T.

AU - Ayad, R.

AU - Babu, V.

AU - Bahinipati, S.

AU - Behera, P.

AU - Belous, K.

AU - Bennett, J.

AU - Bessner, M.

AU - Bilka, T.

AU - Biswal, J.

AU - Bobrov, A.

AU - Bračko, M.

AU - Branchini, P.

AU - Browder, T. E.

AU - Budano, A.

AU - Campajola, M.

AU - Červenkov, D.

AU - Chang, M. C.

AU - Chang, P.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Cho, H. E.

AU - Cho, K.

AU - Cho, S. J.

AU - Choi, Y.

AU - Choudhury, S.

AU - Cinabro, D.

AU - Cunliffe, S.

AU - Czank, T.

AU - Dash, N.

AU - De Pietro, G.

AU - Dhamija, R.

AU - Di Capua, F.

AU - Dingfelder, J.

AU - DoleŽal, Z.

AU - Dong, T. V.

AU - Dubey, S.

AU - Epifanov, D.

AU - Ferber, T.

AU - Ferlewicz, D.

AU - Frey, A.

AU - Fulsom, B. G.

AU - Garg, R.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Giri, A.

AU - Goldenzweig, P.

AU - Gu, T.

AU - Gudkova, K.

AU - Halder, S.

AU - Hara, T.

AU - Hartbrich, O.

AU - Hayasaka, K.

AU - Hernandez Villanueva, M.

AU - Hou, W. S.

AU - Hsu, C. L.

AU - Inami, K.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwasaki, M.

AU - Jacobs, W. W.

AU - Jang, E. J.

AU - Jia, S.

AU - Jin, Y.

AU - Joo, K. K.

AU - Kahn, J.

AU - Kang, K. H.

AU - Kichimi, H.

AU - Kiesling, C.

AU - Kim, C. H.

AU - Kim, D. Y.

AU - Kim, S. H.

AU - Kim, Y. K.

AU - Kimmel, T. D.

AU - Kinoshita, K.

AU - Kodyš, P.

AU - Konno, T.

AU - Korobov, A.

AU - Korpar, S.

AU - Kovalenko, E.

AU - KriŽan, P.

AU - Kroeger, R.

AU - Krokovny, P.

AU - Kuhr, T.

AU - Kulasiri, R.

AU - Kumar, M.

AU - Kumar, R.

AU - Kumara, K.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Lee, S. C.

AU - Li, C. H.

AU - Li, J.

AU - Li, L. K.

AU - Li, Y. B.

AU - Li Gioi, L.

AU - Libby, J.

AU - Lieret, K.

AU - Liventsev, D.

AU - Macqueen, C.

AU - Masuda, M.

AU - Merola, M.

AU - Metzner, F.

AU - Miyabayashi, K.

AU - Mizuk, R.

AU - Mohanty, G. B.

AU - Mohanty, S.

AU - Mrvar, M.

AU - Nakao, M.

AU - Natochii, A.

AU - Nayak, L.

AU - Niiyama, M.

AU - Nisar, N. K.

AU - Nishida, S.

AU - Nishimura, K.

AU - Ogawa, S.

AU - Ono, H.

AU - Onuki, Y.

AU - Oskin, P.

AU - Pakhlova, G.

AU - Pardi, S.

AU - Park, H.

AU - Park, S. H.

AU - Passeri, A.

AU - Patra, S.

AU - Paul, S.

AU - Pedlar, T. K.

AU - Piilonen, L. E.

AU - Podobnik, T.

AU - Popov, V.

AU - Prencipe, E.

AU - Prim, M. T.

AU - Röhrken, M.

AU - Rostomyan, A.

AU - Rout, N.

AU - Rozanska, M.

AU - Russo, G.

AU - Sahoo, D.

AU - Sandilya, S.

AU - Sangal, A.

AU - Santelj, L.

AU - Sanuki, T.

AU - Savinov, V.

AU - Schnell, G.

AU - Schueler, J.

AU - Schwanda, C.

AU - Schwartz, A. J.

AU - Seino, Y.

AU - Senyo, K.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Sharma, C.

AU - Shen, C. P.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Simon, F.

AU - Sokolov, A.

AU - Solovieva, E.

AU - Starič, M.

AU - Strube, J. F.

AU - Sumihama, M.

AU - Sumiyoshi, T.

AU - Takizawa, M.

AU - Tamponi, U.

AU - Tanida, K.

AU - Tao, Y.

AU - Tenchini, F.

AU - Trabelsi, K.

AU - Uchida, M.

AU - Uglov, T.

AU - Uno, S.

AU - Urquijo, P.

AU - Vahsen, S. E.

AU - Varner, G.

AU - Varvell, K. E.

AU - Waheed, E.

AU - Wang, C. H.

AU - Wang, E.

AU - Wang, M. Z.

AU - Wang, P.

AU - Wang, X. L.

AU - Watanabe, M.

AU - Watanuki, S.

AU - Werbycka, O.

AU - Won, E.

AU - Yabsley, B. D.

AU - Yan, W.

AU - Yang, S. B.

AU - Ye, H.

AU - Yin, J. H.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhukova, V.

N1 - Publisher Copyright: © 2021 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

PY - 2021/12/24

Y1 - 2021/12/24

N2 - The first measurements of differential branching fractions of inclusive semileptonic B→Xuℓ+νℓ decays are performed using the full Belle data set of 711 fb-1 of integrated luminosity at the (4S) resonance and for ℓ=e, μ. With the availability of these measurements, new avenues for future shape-function model-independent determinations of the Cabibbo-Kobayashi-Maskawa matrix element |Vub| can be pursued to gain new insights in the existing tension with respect to exclusive determinations. The differential branching fractions are reported as a function of the lepton energy, the four-momentum-transfer squared, light-cone momenta, the hadronic mass, and the hadronic mass squared. They are obtained by subtracting the backgrounds from semileptonic B→Xcℓ+νℓ decays and other processes, and corrected for resolution and acceptance effects.

AB - The first measurements of differential branching fractions of inclusive semileptonic B→Xuℓ+νℓ decays are performed using the full Belle data set of 711 fb-1 of integrated luminosity at the (4S) resonance and for ℓ=e, μ. With the availability of these measurements, new avenues for future shape-function model-independent determinations of the Cabibbo-Kobayashi-Maskawa matrix element |Vub| can be pursued to gain new insights in the existing tension with respect to exclusive determinations. The differential branching fractions are reported as a function of the lepton energy, the four-momentum-transfer squared, light-cone momenta, the hadronic mass, and the hadronic mass squared. They are obtained by subtracting the backgrounds from semileptonic B→Xcℓ+νℓ decays and other processes, and corrected for resolution and acceptance effects.

UR - http://www.scopus.com/inward/record.url?scp=85123362235&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.127.261801

DO - 10.1103/PhysRevLett.127.261801

M3 - Article

C2 - 35029480

AN - SCOPUS:85123362235

SN - 0031-9007

VL - 127

JO - Physical Review Letters

JF - Physical Review Letters

IS - 26

M1 - A87

ER -

Measurement of Differential Branching Fractions of Inclusive B →xuℓ+νℓ Decays

Abstract

Access to Document

Other files and links

Fingerprint

Cite this