First observation of B → D ¯ 1 (→ D ¯ π+π-) ℓ+ν ℓ and measurement of the B → D ¯ (∗)π ℓ+ν ℓ and B → D ¯ (∗)π+π- ℓ+ν ℓ branching fractions with hadronic tagging at Belle

F. Meier; A. Vossen; I. Adachi; K. Adamczyk; H. Aihara; S. Al Said; D. M. Asner; H. Atmacan; T. Aushev; R. Ayad; V. Babu; S. Bahinipati; Sw Banerjee; M. Bauer; P. Behera; K. Belous; J. Bennett; F. Bernlochner; M. Bessner; B. Bhuyan; T. Bilka; D. Biswas; A. Bobrov; D. Bodrov; G. Bonvicini; J. Borah; A. Bozek; M. Bračko; P. Branchini; T. E. Browder; A. Budano; M. Campajola; L. Cao; D. Červenkov; M. C. Chang; P. Chang; A. Chen; B. G. Cheon; K. Chilikin; K. Cho; S. J. Cho; S. K. Choi; Y. Choi; S. Choudhury; D. Cinabro; S. Das; G. De Nardo; G. De Pietro; R. Dhamija; F. Di Capua; J. Dingfelder; Z. DoleŽal; T. V. Dong; D. Epifanov; T. Ferber; D. Ferlewicz; B. G. Fulsom; R. Garg; V. Gaur; A. Giri; P. Goldenzweig; B. Golob; E. Graziani; K. Gudkova; C. Hadjivasiliou; S. Halder; T. Hara; K. Hayasaka; H. Hayashii; M. T. Hedges; W. S. Hou; C. L. Hsu; K. Inami; N. Ipsita; A. Ishikawa; R. Itoh; M. Iwasaki; W. W. Jacobs; E. J. Jang; Y. Jin; A. B. Kaliyar; K. H. Kang; T. Kawasaki; C. Kiesling; C. H. Kim; D. Y. Kim; K. H. Kim; Y. K. Kim; K. Kinoshita; P. Kodyš; A. Korobov; S. Korpar; E. Kovalenko; P. KriŽan; P. Krokovny; T. Kuhr; M. Kumar; R. Kumar; K. Kumara; Y. J. Kwon; T. Lam; J. S. Lange; S. C. Lee; P. Lewis; C. H. Li; L. K. Li; Y. Li; Y. B. Li; L. Li Gioi; J. Libby; K. Lieret; Y. R. Lin; D. Liventsev; T. Luo; M. Masuda; T. Matsuda; D. Matvienko; S. K. Maurya; M. Merola; F. Metzner; K. Miyabayashi; R. Mizuk; R. Mussa; I. Nakamura; M. Nakao; Z. Natkaniec; A. Natochii; L. Nayak; M. Nayak; N. K. Nisar; S. Nishida; S. Ogawa; H. Ono; P. Oskin; P. Pakhlov; G. Pakhlova; S. Pardi; H. Park; J. Park; A. Passeri; S. Patra; S. Paul; R. Pestotnik; L. E. Piilonen; T. Podobnik; E. Prencipe; M. T. Prim; A. Rostomyan; N. Rout; G. Russo; S. Sandilya; L. Santelj; V. Savinov; G. Schnell; C. Schwanda; A. J. Schwartz; Y. Seino; K. Senyo; M. E. Sevior; M. Shapkin; C. Sharma; C. P. Shen; J. G. Shiu; F. Simon; J. B. Singh; A. Soffer; E. Solovieva; M. Starič; Z. S. Stottler; J. F. Strube; M. Sumihama; T. Sumiyoshi; M. Takizawa; U. Tamponi; K. Tanida; F. Tenchini; K. Trabelsi; M. Uchida; T. Uglov; Y. Unno; K. Uno; S. Uno; P. Urquijo; S. E. Vahsen; R. Van Tonder; G. Varner; K. E. Varvell; A. Vinokurova; M. Z. Wang; M. Watanabe; S. Watanuki; J. Wiechczynski; E. Won; X. Xu; B. D. Yabsley; W. Yan; S. B. Yang; J. H. Yin; C. Z. Yuan; L. Yuan; Y. Yusa; Z. P. Zhang; V. Zhukova

doi:10.1103/PhysRevD.107.092003

First observation of B → D ¯ 1 (→ D ¯ π+π-) ℓ+ν ℓ and measurement of the B → D ¯ (∗)π ℓ+ν ℓ and B → D ¯ (∗)π+π- ℓ+ν ℓ branching fractions with hadronic tagging at Belle

F. Meier, A. Vossen, I. Adachi, K. Adamczyk, H. Aihara, S. Al Said, D. M. Asner, H. Atmacan, T. Aushev, R. Ayad, V. Babu, S. Bahinipati, Sw Banerjee, M. Bauer, P. Behera, K. Belous, J. Bennett, F. Bernlochner, M. Bessner, B. BhuyanT. Bilka, D. Biswas, A. Bobrov, D. Bodrov, G. Bonvicini, J. Borah, A. Bozek, M. Bračko, P. Branchini, T. E. Browder, A. Budano, M. Campajola, L. Cao, D. Červenkov, M. C. Chang, P. Chang, A. Chen, B. G. Cheon, K. Chilikin, K. Cho, S. J. Cho, S. K. Choi, Y. Choi, S. Choudhury, D. Cinabro, S. Das, G. De Nardo, G. De Pietro, R. Dhamija, F. Di Capua, J. Dingfelder, Z. DoleŽal, T. V. Dong, D. Epifanov, T. Ferber, D. Ferlewicz, B. G. Fulsom, R. Garg, V. Gaur, A. Giri, P. Goldenzweig, B. Golob, E. Graziani, K. Gudkova, C. Hadjivasiliou, S. Halder, T. Hara, K. Hayasaka, H. Hayashii, M. T. Hedges, W. S. Hou, C. L. Hsu, K. Inami, N. Ipsita, A. Ishikawa, R. Itoh, M. Iwasaki, W. W. Jacobs, E. J. Jang, Y. Jin, A. B. Kaliyar, K. H. Kang, T. Kawasaki, C. Kiesling, C. H. Kim, D. Y. Kim, K. H. Kim, Y. K. Kim, K. Kinoshita, P. Kodyš, A. Korobov, S. Korpar, E. Kovalenko, P. KriŽan, P. Krokovny, T. Kuhr, M. Kumar, R. Kumar, K. Kumara, Y. J. Kwon, T. Lam, J. S. Lange, S. C. Lee, P. Lewis, C. H. Li, L. K. Li, Y. Li, Y. B. Li, L. Li Gioi, J. Libby, K. Lieret, Y. R. Lin, D. Liventsev, T. Luo, M. Masuda, T. Matsuda, D. Matvienko, S. K. Maurya, M. Merola, F. Metzner, K. Miyabayashi, R. Mizuk, R. Mussa, I. Nakamura, M. Nakao, Z. Natkaniec, A. Natochii, L. Nayak, M. Nayak, N. K. Nisar, S. Nishida, S. Ogawa, H. Ono, P. Oskin, P. Pakhlov, G. Pakhlova, S. Pardi, H. Park, J. Park, A. Passeri, S. Patra, S. Paul, R. Pestotnik, L. E. Piilonen, T. Podobnik, E. Prencipe, M. T. Prim, A. Rostomyan, N. Rout, G. Russo, S. Sandilya, L. Santelj, V. Savinov, G. Schnell, C. Schwanda, A. J. Schwartz, Y. Seino, K. Senyo, M. E. Sevior, M. Shapkin, C. Sharma, C. P. Shen, J. G. Shiu, F. Simon, J. B. Singh, A. Soffer, E. Solovieva, M. Starič, Z. S. Stottler, J. F. Strube, M. Sumihama, T. Sumiyoshi, M. Takizawa, U. Tamponi, K. Tanida, F. Tenchini, K. Trabelsi, M. Uchida, T. Uglov, Y. Unno, K. Uno, S. Uno, P. Urquijo, S. E. Vahsen, R. Van Tonder, G. Varner, K. E. Varvell, A. Vinokurova, M. Z. Wang, M. Watanabe, S. Watanuki, J. Wiechczynski, E. Won, X. Xu, B. D. Yabsley, W. Yan, S. B. Yang, J. H. Yin, C. Z. Yuan, L. Yuan, Y. Yusa, Z. P. Zhang, V. Zhukova

School of Physics and Astronomy

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Abstract

We report measurements of the ratios of branching fractions for B→D¯(∗)πℓ+νℓ and B→D¯(∗)π+π-ℓ+νℓ relative to B→D¯∗ℓ+νℓ decays with ℓ=e, μ. These results are obtained from a data sample that contains 772×106BB¯ pairs collected near the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider. Fully reconstructing both B mesons in the event, we obtain B(B0→D¯0π-ℓ+νℓ)B(B0→D∗-ℓ+νℓ)=(7.23±0.36±0.14)%, B(B+→D-π+ℓ+νℓ)B(B+→D¯∗0ℓ+νℓ)=(6.78±0.24±0.18)%, B(B0→D¯∗0π-ℓ+νℓ)B(B0→D∗-ℓ+νℓ)=(11.10±0.48±0.23)%, B(B+→D∗-π+ℓ+νℓ)B(B+→D¯∗0ℓ+νℓ)=(9.50±0.33±0.34)%, B(B0→D-π+π-ℓ+νℓ)B(B0→D∗-ℓ+νℓ)=(2.91±0.37±0.26)%, B(B+→D¯0π+π-ℓ+νℓ)B(B+→D¯∗0ℓ+νℓ)=(3.10±0.26±0.22)%, B(B0→D∗-π+π-ℓ+νℓ)B(B0→D∗-ℓ+νℓ)=(0.99±0.43±0.20)%, B(B+→D¯∗0π+π-ℓ+νℓ)B(B+→D¯∗0ℓ+νℓ)=(1.25±0.27±0.15)%, where the uncertainties are statistical and systematic, respectively. These are the most precise measurements of these branching fraction ratios to date. The invariant mass spectra of the Dπ, D∗π, and Dππ systems are studied, and the branching fraction products B(B0→D2∗-ℓ+νℓ)×B(D2∗-→D¯0π-)=(0.157±0.015±0.005)%, B(B+→D¯0∗0ℓ+νℓ)×B(D¯0∗0→D-π+)=(0.054±0.022±0.005)%, B(B+→D¯2∗0ℓ+νℓ)×B(D¯2∗0→D-π+)=(0.163±0.011±0.008)%, B(B0→D1-ℓ+νℓ)×B(D1-→D¯∗0π-)=(0.306±0.050±0.029)%, B(B0→D1′-ℓ+νℓ)×B(D1′-→D¯∗0π-)=(0.206±0.068±0.025)%, B(B0→D2∗-ℓ+νℓ)×B(D2∗-→D¯∗0π-)=(0.051±0.040±0.010)%, B(B+→D¯10ℓ+νℓ)×B(D¯10→D∗-π+)=(0.249±0.023±0.015)%, B(B+→D¯1′0ℓ+νℓ)×B(D¯1′0→D∗-π+)=(0.138±0.036±0.009)%, B(B+→D¯2∗0ℓ+νℓ)×B(D¯2∗0→D∗-π+)=(0.137±0.026±0.009)%, B(B0→D1-ℓ+νℓ)×B(D1-→D-π+π-)=(0.102±0.013±0.009)%, B(B+→D¯10ℓ+νℓ)×B(D¯10→D¯0π+π-)=(0.105±0.011±0.009)%, are extracted. This is the first observation of the decays B→D¯1ℓ+νℓ with D1→Dπ+π-.

Original language	English
Article number	092003
Journal	Physical Review D
Volume	107
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.107.092003
State	Published - 1 May 2023

Funding

Funders	Funder number
Basque Foundation for Science, Spain
Excellence Cluster Universe
GLORIAD
Global Ring Network for Advanced Application Development
Key Research Program of Frontier Sciences
National Science Foundation
U.S. Department of Energy
Carl-Zeiss-Stiftung
University of Tabuk	S-1440-0321, S-0256-1438, S-0280-1439
University of Tabuk
Horizon 2020 Framework Programme	884719
Horizon 2020 Framework Programme
European Commission	947006
European Commission
Australian Research Council	DP170102204, DP180102629, DP150103061, DE220100462, DP170102389, FT130100303
Australian Research Council
Department of Science and Technology, Ministry of Science and Technology, India
Department of Atomic Energy, Government of India	RTI 4002
Department of Atomic Energy, Government of India
Deutsche Forschungsgemeinschaft
Volkswagen Foundation
Japan Society for the Promotion of Science
Ministry of Education, Culture, Sports, Science and Technology
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
United States-Israel Binational Science Foundation
National Natural Science Foundation of China	12175041, 12135005, 11975076, 12161141008, 11675166, 11705209
National Natural Science Foundation of China
Ministerstvo Školství, Mládeže a Tělovýchovy	LTT17020
Ministerstvo Školství, Mládeže a Tělovýchovy
Grantová Agentura České Republiky	22-18469S
Grantová Agentura České Republiky
Chinese Academy of Sciences	QYZDJ-SSW-SLH011
Chinese Academy of Sciences
Austrian Science Fund	P 31361-N36
Austrian Science Fund
Ministry of Education
Ministry of Education and Science of the Russian Federation
Korea Institute of Science and Technology Information
National Research Foundation of Korea	2022R1A2C1003993, 2016R1D1A1B02012900, 2018R1A2B3003643, RS202200197659, 2021R1A6A1A03043957, 2021R1F1A1064008, 2019R1I1A3A01058933, 2021R1F1A1060423, 2018R1A6A1A06024970
National Research Foundation of Korea
Israel Science Foundation
Instituto Nazionale di Fisica Nucleare
Narodowe Centrum Nauki
Javna Agencija za Raziskovalno Dejavnost RS	J1-9124, P1-0135
Javna Agencija za Raziskovalno Dejavnost RS
Ministerstwo Edukacji i Nauki
Ministry of Science and Technology, Taiwan
Nagoya University
National Research University Higher School of Economics
Bundesministerium für Bildung, Wissenschaft und Forschung
Korea Research Environment Open Network

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Meier, F., Vossen, A., Adachi, I., Adamczyk, K., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Banerjee, S., Bauer, M., Behera, P., Belous, K., Bennett, J., Bernlochner, F., Bessner, M., ... Zhukova, V. (2023). First observation of B → D ¯ 1 (→ D ¯ π+π-) ℓ+ν ℓ and measurement of the B → D ¯ (∗)π ℓ+ν ℓ and B → D ¯ (∗)π+π- ℓ+ν ℓ branching fractions with hadronic tagging at Belle. Physical Review D, 107(9), Article 092003. https://doi.org/10.1103/PhysRevD.107.092003

@article{67cddac0f4974d6796deb91746500832,

title = "First observation of B → D ¯ 1 (→ D ¯ π+π-) ℓ+ν ℓ and measurement of the B → D ¯ (∗)π ℓ+ν ℓ and B → D ¯ (∗)π+π- ℓ+ν ℓ branching fractions with hadronic tagging at Belle",

abstract = "We report measurements of the ratios of branching fractions for B→D¯(∗)πℓ+νℓ and B→D¯(∗)π+π-ℓ+νℓ relative to B→D¯∗ℓ+νℓ decays with ℓ=e, μ. These results are obtained from a data sample that contains 772×106BB¯ pairs collected near the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider. Fully reconstructing both B mesons in the event, we obtain B(B0→D¯0π-ℓ+νℓ)B(B0→D∗-ℓ+νℓ)=(7.23±0.36±0.14)%, B(B+→D-π+ℓ+νℓ)B(B+→D¯∗0ℓ+νℓ)=(6.78±0.24±0.18)%, B(B0→D¯∗0π-ℓ+νℓ)B(B0→D∗-ℓ+νℓ)=(11.10±0.48±0.23)%, B(B+→D∗-π+ℓ+νℓ)B(B+→D¯∗0ℓ+νℓ)=(9.50±0.33±0.34)%, B(B0→D-π+π-ℓ+νℓ)B(B0→D∗-ℓ+νℓ)=(2.91±0.37±0.26)%, B(B+→D¯0π+π-ℓ+νℓ)B(B+→D¯∗0ℓ+νℓ)=(3.10±0.26±0.22)%, B(B0→D∗-π+π-ℓ+νℓ)B(B0→D∗-ℓ+νℓ)=(0.99±0.43±0.20)%, B(B+→D¯∗0π+π-ℓ+νℓ)B(B+→D¯∗0ℓ+νℓ)=(1.25±0.27±0.15)%, where the uncertainties are statistical and systematic, respectively. These are the most precise measurements of these branching fraction ratios to date. The invariant mass spectra of the Dπ, D∗π, and Dππ systems are studied, and the branching fraction products B(B0→D2∗-ℓ+νℓ)×B(D2∗-→D¯0π-)=(0.157±0.015±0.005)%, B(B+→D¯0∗0ℓ+νℓ)×B(D¯0∗0→D-π+)=(0.054±0.022±0.005)%, B(B+→D¯2∗0ℓ+νℓ)×B(D¯2∗0→D-π+)=(0.163±0.011±0.008)%, B(B0→D1-ℓ+νℓ)×B(D1-→D¯∗0π-)=(0.306±0.050±0.029)%, B(B0→D1′-ℓ+νℓ)×B(D1′-→D¯∗0π-)=(0.206±0.068±0.025)%, B(B0→D2∗-ℓ+νℓ)×B(D2∗-→D¯∗0π-)=(0.051±0.040±0.010)%, B(B+→D¯10ℓ+νℓ)×B(D¯10→D∗-π+)=(0.249±0.023±0.015)%, B(B+→D¯1′0ℓ+νℓ)×B(D¯1′0→D∗-π+)=(0.138±0.036±0.009)%, B(B+→D¯2∗0ℓ+νℓ)×B(D¯2∗0→D∗-π+)=(0.137±0.026±0.009)%, B(B0→D1-ℓ+νℓ)×B(D1-→D-π+π-)=(0.102±0.013±0.009)%, B(B+→D¯10ℓ+νℓ)×B(D¯10→D¯0π+π-)=(0.105±0.011±0.009)%, are extracted. This is the first observation of the decays B→D¯1ℓ+νℓ with D1→Dπ+π-.",

author = "F. Meier and A. Vossen and I. Adachi and K. Adamczyk and H. Aihara and {Al Said}, S. and Asner, {D. M.} and H. Atmacan and T. Aushev and R. Ayad and V. Babu and S. Bahinipati and Sw Banerjee and M. Bauer and P. Behera and K. Belous and J. Bennett and F. Bernlochner and M. Bessner and B. Bhuyan and T. Bilka and D. Biswas and A. Bobrov and D. Bodrov and G. Bonvicini and J. Borah and A. Bozek and M. Bra{\v c}ko and P. Branchini and Browder, {T. E.} and A. Budano and M. Campajola and L. Cao and D. {\v C}ervenkov and Chang, {M. C.} and P. Chang and A. Chen and Cheon, {B. G.} and K. Chilikin and K. Cho and Cho, {S. J.} and Choi, {S. K.} and Y. Choi and S. Choudhury and D. Cinabro and S. Das and {De Nardo}, G. 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 D. Epifanov and T. Ferber and D. Ferlewicz and Fulsom, {B. G.} and R. Garg and V. Gaur and A. Giri and P. Goldenzweig and B. Golob and E. Graziani and K. Gudkova and C. Hadjivasiliou and S. Halder and T. Hara and K. Hayasaka and H. Hayashii and Hedges, {M. T.} and Hou, {W. S.} and Hsu, {C. L.} and K. Inami and N. Ipsita and A. Ishikawa and R. Itoh and M. Iwasaki and Jacobs, {W. W.} and Jang, {E. J.} and Y. Jin and Kaliyar, {A. B.} and Kang, {K. H.} and T. Kawasaki and C. Kiesling and Kim, {C. H.} and Kim, {D. Y.} and Kim, {K. H.} and Kim, {Y. K.} and K. Kinoshita and P. Kody{\v s} and A. Korobov and S. Korpar and E. Kovalenko and P. Kri{\v Z}an and P. Krokovny and T. Kuhr and M. Kumar and R. Kumar and K. Kumara and Kwon, {Y. J.} and T. Lam and Lange, {J. S.} and Lee, {S. C.} and P. Lewis and Li, {C. H.} and Li, {L. K.} and Y. Li and Li, {Y. B.} and {Li Gioi}, L. and J. Libby and K. Lieret and Lin, {Y. R.} and D. Liventsev and T. Luo and M. Masuda and T. Matsuda and D. Matvienko and Maurya, {S. K.} and M. Merola and F. Metzner and K. Miyabayashi and R. Mizuk and R. Mussa and I. Nakamura and M. Nakao and Z. Natkaniec and A. Natochii and L. Nayak and M. Nayak and Nisar, {N. K.} and S. Nishida and S. Ogawa and H. Ono and P. Oskin and P. Pakhlov and G. Pakhlova and S. Pardi and H. Park and J. Park and A. Passeri and S. Patra and S. Paul and R. Pestotnik and Piilonen, {L. E.} and T. Podobnik and E. Prencipe and Prim, {M. T.} and A. Rostomyan and N. Rout and G. Russo and S. Sandilya and L. Santelj and V. Savinov and G. Schnell 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 F. Simon and Singh, {J. B.} and A. Soffer and E. Solovieva and M. Stari{\v c} and Stottler, {Z. S.} and Strube, {J. F.} and M. Sumihama and T. Sumiyoshi and M. Takizawa and U. Tamponi and K. Tanida and F. Tenchini and K. Trabelsi and M. Uchida and T. Uglov and Y. Unno and K. Uno and S. Uno and P. Urquijo and Vahsen, {S. E.} and {Van Tonder}, R. and G. Varner and Varvell, {K. E.} and A. Vinokurova and Wang, {M. Z.} and M. Watanabe and S. Watanuki and J. Wiechczynski and E. Won and X. Xu and Yabsley, {B. D.} and W. Yan and Yang, {S. B.} and Yin, {J. H.} and Yuan, {C. Z.} and L. Yuan and Y. Yusa and Zhang, {Z. P.} and V. Zhukova",

note = "Publisher Copyright: {\textcopyright} 2023 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 = "2023",

month = may,

day = "1",

doi = "10.1103/PhysRevD.107.092003",

language = "אנגלית",

volume = "107",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "9",

}

Meier, F, Vossen, A, Adachi, I, Adamczyk, K, Aihara, H, Al Said, S, Asner, DM, Atmacan, H, Aushev, T, Ayad, R, Babu, V, Bahinipati, S, Banerjee, S, Bauer, M, Behera, P, Belous, K, Bennett, J, Bernlochner, F, Bessner, M, Bhuyan, B, Bilka, T, Biswas, D, Bobrov, A, Bodrov, D, Bonvicini, G, Borah, J, Bozek, A, Bračko, M, Branchini, P, Browder, TE, Budano, A, Campajola, M, Cao, L, Červenkov, D, Chang, MC, Chang, P, Chen, A, Cheon, BG, Chilikin, K, Cho, K, Cho, SJ, Choi, SK, Choi, Y, Choudhury, S, Cinabro, D, Das, S, De Nardo, G, De Pietro, G, Dhamija, R, Di Capua, F, Dingfelder, J, DoleŽal, Z, Dong, TV, Epifanov, D, Ferber, T, Ferlewicz, D, Fulsom, BG, Garg, R, Gaur, V, Giri, A, Goldenzweig, P, Golob, B, Graziani, E, Gudkova, K, Hadjivasiliou, C, Halder, S, Hara, T, Hayasaka, K, Hayashii, H, Hedges, MT, Hou, WS, Hsu, CL, Inami, K, Ipsita, N, Ishikawa, A, Itoh, R, Iwasaki, M, Jacobs, WW, Jang, EJ, Jin, Y, Kaliyar, AB, Kang, KH, Kawasaki, T, Kiesling, C, Kim, CH, Kim, DY, Kim, KH, Kim, YK, Kinoshita, K, Kodyš, P, Korobov, A, Korpar, S, Kovalenko, E, KriŽan, P, Krokovny, P, Kuhr, T, Kumar, M, Kumar, R, Kumara, K, Kwon, YJ, Lam, T, Lange, JS, Lee, SC, Lewis, P, Li, CH, Li, LK, Li, Y, Li, YB, Li Gioi, L, Libby, J, Lieret, K, Lin, YR, Liventsev, D, Luo, T, Masuda, M, Matsuda, T, Matvienko, D, Maurya, SK, Merola, M, Metzner, F, Miyabayashi, K, Mizuk, R, Mussa, R, Nakamura, I, Nakao, M, Natkaniec, Z, Natochii, A, Nayak, L, Nayak, M, Nisar, NK, Nishida, S, Ogawa, S, Ono, H, Oskin, P, Pakhlov, P, Pakhlova, G, Pardi, S, Park, H, Park, J, Passeri, A, Patra, S, Paul, S, Pestotnik, R, Piilonen, LE, Podobnik, T, Prencipe, E, Prim, MT, Rostomyan, A, Rout, N, Russo, G, Sandilya, S, Santelj, L, Savinov, V, Schnell, G, Schwanda, C, Schwartz, AJ, Seino, Y, Senyo, K, Sevior, ME, Shapkin, M, Sharma, C, Shen, CP, Shiu, JG, Simon, F, Singh, JB, Soffer, A, Solovieva, E, Starič, M, Stottler, ZS, Strube, JF, Sumihama, M, Sumiyoshi, T, Takizawa, M, Tamponi, U, Tanida, K, Tenchini, F, Trabelsi, K, Uchida, M, Uglov, T, Unno, Y, Uno, K, Uno, S, Urquijo, P, Vahsen, SE, Van Tonder, R, Varner, G, Varvell, KE, Vinokurova, A, Wang, MZ, Watanabe, M, Watanuki, S, Wiechczynski, J, Won, E, Xu, X, Yabsley, BD, Yan, W, Yang, SB, Yin, JH, Yuan, CZ, Yuan, L, Yusa, Y, Zhang, ZP & Zhukova, V 2023, 'First observation of B → D ¯ 1 (→ D ¯ π+π-) ℓ+ν ℓ and measurement of the B → D ¯ (∗)π ℓ+ν ℓ and B → D ¯ (∗)π+π- ℓ+ν ℓ branching fractions with hadronic tagging at Belle', Physical Review D, vol. 107, no. 9, 092003. https://doi.org/10.1103/PhysRevD.107.092003

First observation of B → D ¯ 1 (→ D ¯ π+π-) ℓ+ν ℓ and measurement of the B → D ¯ (∗)π ℓ+ν ℓ and B → D ¯ (∗)π+π- ℓ+ν ℓ branching fractions with hadronic tagging at Belle. / Meier, F.; Vossen, A.; Adachi, I. et al.
In: Physical Review D, Vol. 107, No. 9, 092003, 01.05.2023.

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

TY - JOUR

T1 - First observation of B → D ¯ 1 (→ D ¯ π+π-) ℓ+ν ℓ and measurement of the B → D ¯ (∗)π ℓ+ν ℓ and B → D ¯ (∗)π+π- ℓ+ν ℓ branching fractions with hadronic tagging at Belle

AU - Meier, F.

AU - Vossen, A.

AU - Adachi, I.

AU - Adamczyk, K.

AU - Aihara, H.

AU - Al Said, S.

AU - Asner, D. M.

AU - Atmacan, H.

AU - Aushev, T.

AU - Ayad, R.

AU - Babu, V.

AU - Bahinipati, S.

AU - Banerjee, Sw

AU - Bauer, M.

AU - Behera, P.

AU - Belous, K.

AU - Bennett, J.

AU - Bernlochner, F.

AU - Bessner, M.

AU - Bhuyan, B.

AU - Bilka, T.

AU - Biswas, D.

AU - Bobrov, A.

AU - Bodrov, D.

AU - Bonvicini, G.

AU - Borah, J.

AU - Bozek, A.

AU - Bračko, M.

AU - Branchini, P.

AU - Browder, T. E.

AU - Budano, A.

AU - Campajola, M.

AU - Cao, L.

AU - Červenkov, D.

AU - Chang, M. C.

AU - Chang, P.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Cho, K.

AU - Cho, S. J.

AU - Choi, S. K.

AU - Choi, Y.

AU - Choudhury, S.

AU - Cinabro, D.

AU - Das, S.

AU - De Nardo, G.

AU - De Pietro, G.

AU - Dhamija, R.

AU - Di Capua, F.

AU - Dingfelder, J.

AU - DoleŽal, Z.

AU - Dong, T. V.

AU - Epifanov, D.

AU - Ferber, T.

AU - Ferlewicz, D.

AU - Fulsom, B. G.

AU - Garg, R.

AU - Gaur, V.

AU - Giri, A.

AU - Goldenzweig, P.

AU - Golob, B.

AU - Graziani, E.

AU - Gudkova, K.

AU - Hadjivasiliou, C.

AU - Halder, S.

AU - Hara, T.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hedges, M. T.

AU - Hou, W. S.

AU - Hsu, C. L.

AU - Inami, K.

AU - Ipsita, N.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwasaki, M.

AU - Jacobs, W. W.

AU - Jang, E. J.

AU - Jin, Y.

AU - Kaliyar, A. B.

AU - Kang, K. H.

AU - Kawasaki, T.

AU - Kiesling, C.

AU - Kim, C. H.

AU - Kim, D. Y.

AU - Kim, K. H.

AU - Kim, Y. K.

AU - Kinoshita, K.

AU - Kodyš, P.

AU - Korobov, A.

AU - Korpar, S.

AU - Kovalenko, E.

AU - KriŽan, P.

AU - Krokovny, P.

AU - Kuhr, T.

AU - Kumar, M.

AU - Kumar, R.

AU - Kumara, K.

AU - Kwon, Y. J.

AU - Lam, T.

AU - Lange, J. S.

AU - Lee, S. C.

AU - Lewis, P.

AU - Li, C. H.

AU - Li, L. K.

AU - Li, Y.

AU - Li, Y. B.

AU - Li Gioi, L.

AU - Libby, J.

AU - Lieret, K.

AU - Lin, Y. R.

AU - Liventsev, D.

AU - Luo, T.

AU - Masuda, M.

AU - Matsuda, T.

AU - Matvienko, D.

AU - Maurya, S. K.

AU - Merola, M.

AU - Metzner, F.

AU - Miyabayashi, K.

AU - Mizuk, R.

AU - Mussa, R.

AU - Nakamura, I.

AU - Nakao, M.

AU - Natkaniec, Z.

AU - Natochii, A.

AU - Nayak, L.

AU - Nayak, M.

AU - Nisar, N. K.

AU - Nishida, S.

AU - Ogawa, S.

AU - Ono, H.

AU - Oskin, P.

AU - Pakhlov, P.

AU - Pakhlova, G.

AU - Pardi, S.

AU - Park, H.

AU - Park, J.

AU - Passeri, A.

AU - Patra, S.

AU - Paul, S.

AU - Pestotnik, R.

AU - Piilonen, L. E.

AU - Podobnik, T.

AU - Prencipe, E.

AU - Prim, M. T.

AU - Rostomyan, A.

AU - Rout, N.

AU - Russo, G.

AU - Sandilya, S.

AU - Santelj, L.

AU - Savinov, V.

AU - Schnell, G.

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 - Simon, F.

AU - Singh, J. B.

AU - Soffer, A.

AU - Solovieva, E.

AU - Starič, M.

AU - Stottler, Z. S.

AU - Strube, J. F.

AU - Sumihama, M.

AU - Sumiyoshi, T.

AU - Takizawa, M.

AU - Tamponi, U.

AU - Tanida, K.

AU - Tenchini, F.

AU - Trabelsi, K.

AU - Uchida, M.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, K.

AU - Uno, S.

AU - Urquijo, P.

AU - Vahsen, S. E.

AU - Van Tonder, R.

AU - Varner, G.

AU - Varvell, K. E.

AU - Vinokurova, A.

AU - Wang, M. Z.

AU - Watanabe, M.

AU - Watanuki, S.

AU - Wiechczynski, J.

AU - Won, E.

AU - Xu, X.

AU - Yabsley, B. D.

AU - Yan, W.

AU - Yang, S. B.

AU - Yin, J. H.

AU - Yuan, C. Z.

AU - Yuan, L.

AU - Yusa, Y.

AU - Zhang, Z. P.

AU - Zhukova, V.

N1 - Publisher Copyright: © 2023 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 - 2023/5/1

Y1 - 2023/5/1

N2 - We report measurements of the ratios of branching fractions for B→D¯(∗)πℓ+νℓ and B→D¯(∗)π+π-ℓ+νℓ relative to B→D¯∗ℓ+νℓ decays with ℓ=e, μ. These results are obtained from a data sample that contains 772×106BB¯ pairs collected near the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider. Fully reconstructing both B mesons in the event, we obtain B(B0→D¯0π-ℓ+νℓ)B(B0→D∗-ℓ+νℓ)=(7.23±0.36±0.14)%, B(B+→D-π+ℓ+νℓ)B(B+→D¯∗0ℓ+νℓ)=(6.78±0.24±0.18)%, B(B0→D¯∗0π-ℓ+νℓ)B(B0→D∗-ℓ+νℓ)=(11.10±0.48±0.23)%, B(B+→D∗-π+ℓ+νℓ)B(B+→D¯∗0ℓ+νℓ)=(9.50±0.33±0.34)%, B(B0→D-π+π-ℓ+νℓ)B(B0→D∗-ℓ+νℓ)=(2.91±0.37±0.26)%, B(B+→D¯0π+π-ℓ+νℓ)B(B+→D¯∗0ℓ+νℓ)=(3.10±0.26±0.22)%, B(B0→D∗-π+π-ℓ+νℓ)B(B0→D∗-ℓ+νℓ)=(0.99±0.43±0.20)%, B(B+→D¯∗0π+π-ℓ+νℓ)B(B+→D¯∗0ℓ+νℓ)=(1.25±0.27±0.15)%, where the uncertainties are statistical and systematic, respectively. These are the most precise measurements of these branching fraction ratios to date. The invariant mass spectra of the Dπ, D∗π, and Dππ systems are studied, and the branching fraction products B(B0→D2∗-ℓ+νℓ)×B(D2∗-→D¯0π-)=(0.157±0.015±0.005)%, B(B+→D¯0∗0ℓ+νℓ)×B(D¯0∗0→D-π+)=(0.054±0.022±0.005)%, B(B+→D¯2∗0ℓ+νℓ)×B(D¯2∗0→D-π+)=(0.163±0.011±0.008)%, B(B0→D1-ℓ+νℓ)×B(D1-→D¯∗0π-)=(0.306±0.050±0.029)%, B(B0→D1′-ℓ+νℓ)×B(D1′-→D¯∗0π-)=(0.206±0.068±0.025)%, B(B0→D2∗-ℓ+νℓ)×B(D2∗-→D¯∗0π-)=(0.051±0.040±0.010)%, B(B+→D¯10ℓ+νℓ)×B(D¯10→D∗-π+)=(0.249±0.023±0.015)%, B(B+→D¯1′0ℓ+νℓ)×B(D¯1′0→D∗-π+)=(0.138±0.036±0.009)%, B(B+→D¯2∗0ℓ+νℓ)×B(D¯2∗0→D∗-π+)=(0.137±0.026±0.009)%, B(B0→D1-ℓ+νℓ)×B(D1-→D-π+π-)=(0.102±0.013±0.009)%, B(B+→D¯10ℓ+νℓ)×B(D¯10→D¯0π+π-)=(0.105±0.011±0.009)%, are extracted. This is the first observation of the decays B→D¯1ℓ+νℓ with D1→Dπ+π-.

AB - We report measurements of the ratios of branching fractions for B→D¯(∗)πℓ+νℓ and B→D¯(∗)π+π-ℓ+νℓ relative to B→D¯∗ℓ+νℓ decays with ℓ=e, μ. These results are obtained from a data sample that contains 772×106BB¯ pairs collected near the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider. Fully reconstructing both B mesons in the event, we obtain B(B0→D¯0π-ℓ+νℓ)B(B0→D∗-ℓ+νℓ)=(7.23±0.36±0.14)%, B(B+→D-π+ℓ+νℓ)B(B+→D¯∗0ℓ+νℓ)=(6.78±0.24±0.18)%, B(B0→D¯∗0π-ℓ+νℓ)B(B0→D∗-ℓ+νℓ)=(11.10±0.48±0.23)%, B(B+→D∗-π+ℓ+νℓ)B(B+→D¯∗0ℓ+νℓ)=(9.50±0.33±0.34)%, B(B0→D-π+π-ℓ+νℓ)B(B0→D∗-ℓ+νℓ)=(2.91±0.37±0.26)%, B(B+→D¯0π+π-ℓ+νℓ)B(B+→D¯∗0ℓ+νℓ)=(3.10±0.26±0.22)%, B(B0→D∗-π+π-ℓ+νℓ)B(B0→D∗-ℓ+νℓ)=(0.99±0.43±0.20)%, B(B+→D¯∗0π+π-ℓ+νℓ)B(B+→D¯∗0ℓ+νℓ)=(1.25±0.27±0.15)%, where the uncertainties are statistical and systematic, respectively. These are the most precise measurements of these branching fraction ratios to date. The invariant mass spectra of the Dπ, D∗π, and Dππ systems are studied, and the branching fraction products B(B0→D2∗-ℓ+νℓ)×B(D2∗-→D¯0π-)=(0.157±0.015±0.005)%, B(B+→D¯0∗0ℓ+νℓ)×B(D¯0∗0→D-π+)=(0.054±0.022±0.005)%, B(B+→D¯2∗0ℓ+νℓ)×B(D¯2∗0→D-π+)=(0.163±0.011±0.008)%, B(B0→D1-ℓ+νℓ)×B(D1-→D¯∗0π-)=(0.306±0.050±0.029)%, B(B0→D1′-ℓ+νℓ)×B(D1′-→D¯∗0π-)=(0.206±0.068±0.025)%, B(B0→D2∗-ℓ+νℓ)×B(D2∗-→D¯∗0π-)=(0.051±0.040±0.010)%, B(B+→D¯10ℓ+νℓ)×B(D¯10→D∗-π+)=(0.249±0.023±0.015)%, B(B+→D¯1′0ℓ+νℓ)×B(D¯1′0→D∗-π+)=(0.138±0.036±0.009)%, B(B+→D¯2∗0ℓ+νℓ)×B(D¯2∗0→D∗-π+)=(0.137±0.026±0.009)%, B(B0→D1-ℓ+νℓ)×B(D1-→D-π+π-)=(0.102±0.013±0.009)%, B(B+→D¯10ℓ+νℓ)×B(D¯10→D¯0π+π-)=(0.105±0.011±0.009)%, are extracted. This is the first observation of the decays B→D¯1ℓ+νℓ with D1→Dπ+π-.

UR - http://www.scopus.com/inward/record.url?scp=85159662434&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.107.092003

DO - 10.1103/PhysRevD.107.092003

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:85159662434

SN - 2470-0010

VL - 107

JO - Physical Review D

JF - Physical Review D

IS - 9

M1 - 092003

ER -

First observation of B → D ¯ 1 (→ D ¯ π+π-) ℓ+ν ℓ and measurement of the B → D ¯ (∗)π ℓ+ν ℓ and B → D ¯ (∗)π+π- ℓ+ν ℓ branching fractions with hadronic tagging at Belle

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