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Title: Measurement of the CKM matrix element | V c b | from B 0 D * - + ν at Belle

Abstract

We present a new measurement of the Cabibbo-Kobayashi-Maskawa matrix element | V c b | from B 0 D * + ν decays, reconstructed with the full Belle data set of 711 fb 1 integrated luminosity. Two form factor parametrizations, originally conceived by the Caprini-Lellouch-Neubert (CLN) and the Boyd, Grinstein and Lebed (BGL) groups, are used to extract the product F ( 1 ) η EW | V c b | and the decay form factors, where F ( 1 ) is the normalization factor and η EW is a small electroweak correction. In the CLN parametrization we find F ( 1 ) η EW | V c b | = ( 35.06 ± 0.15 ± 0.56 ) × 10 3 , ρ 2 = 1.106 ± 0.031 ± 0.007 , R 1 ( 1 ) = 1.229 ± 0.028 ± 0.009 , R 2 ( 1 ) = 0.852 ± 0.021 ± 0.006 . For the BGL parametrization we obtain F ( 1 ) η EW | V c b | = ( 34.93 ± 0.23 ± 0.59 ) × 10 3 , which is consistent with the world average when correcting for F ( 1 ) η EW . The branching fraction of B 0 D * + ν is measured to be B ( B 0 D * + ν ) = ( 4.90 ± 0.02 ± 0.16 ) % . We also present a new test of lepton flavor universality violation in semileptonic B decays, B ( B 0 D * e + ν ) B ( B 0 D * μ + ν ) = 1.01 ± 0.01 ± 0.03 . The errors quoted correspond to the statistical and systematic uncertainties, respectively. This is the most precise measurement of F ( 1 ) η EW | V c b | and form factors to date and the first experimental study of the BGL form factor parametrization in an experimental measurement.

Authors:
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Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); National Science Foundation (NSF); KEK - High Energy Accelerator Research Organization; Ministry of Education, Culture, Sports, Science and Technology
Contributing Org.:
Belle Collaboration
OSTI Identifier:
1561335
Alternate Identifier(s):
OSTI ID: 1569556
Report Number(s):
BNL-212157-2019-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ
Grant/Contract Number:  
SC0012704
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 100; Journal Issue: 5; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Waheed, E., Urquijo, P., Ferlewicz, D., Adachi, I., Adamczyk, K., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bansal, V., Behera, P., Beleño, C., Bernlochner, F., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Campajola, M., Červenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Di Carlo, S., Doležal, Z., Dong, T. V., Dossett, D., Eidelman, S., Epifanov, D., Fast, J. E., Fulsom, B. G., Garg, R., Gaur, V., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Grzymkowska, O., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hedges, M. T., Hou, W. -S., Hsu, C. -L., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jeon, H. B., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Kahn, J., Kaliyar, A. B., Karyan, G., Kawasaki, T., Kim, C. H., Kim, D. Y., Kim, K. T., Kim, S. H., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, J. Y., Lee, S. C., Li, C. H., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liventsev, D., Lu, P. -C., Luo, T., MacNaughton, J., Masuda, M., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mori, T., Mussa, R., Nakamura, I., Nakao, M., Nath, K. J., Natkaniec, Z., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Park, H., Park, S. -H., Paul, S., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Prim, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shebalin, V., Shen, C. P., Shiu, J. -G., Shwartz, B., Simon, F., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Stottler, Z. S., Strube, J. F., Sumiyoshi, T., Takizawa, M., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Usov, Y., Varner, G., Varvell, K. E., Vinokurova, A., Vossen, A., Wang, C. H., Wang, M. -Z., Wang, P., Won, E., Yang, S. B., Ye, H., Yusa, Y., Zhang, Z. P., Zhilich, V., and Zhukova, V. Measurement of the CKM matrix element |Vcb| from B0→D*-ℓ+νℓ at Belle. United States: N. p., 2019. Web. doi:10.1103/PhysRevD.100.052007.
Waheed, E., Urquijo, P., Ferlewicz, D., Adachi, I., Adamczyk, K., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bansal, V., Behera, P., Beleño, C., Bernlochner, F., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Campajola, M., Červenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Di Carlo, S., Doležal, Z., Dong, T. V., Dossett, D., Eidelman, S., Epifanov, D., Fast, J. E., Fulsom, B. G., Garg, R., Gaur, V., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Grzymkowska, O., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hedges, M. T., Hou, W. -S., Hsu, C. -L., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jeon, H. B., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Kahn, J., Kaliyar, A. B., Karyan, G., Kawasaki, T., Kim, C. H., Kim, D. Y., Kim, K. T., Kim, S. H., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, J. Y., Lee, S. C., Li, C. H., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liventsev, D., Lu, P. -C., Luo, T., MacNaughton, J., Masuda, M., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mori, T., Mussa, R., Nakamura, I., Nakao, M., Nath, K. J., Natkaniec, Z., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Park, H., Park, S. -H., Paul, S., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Prim, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shebalin, V., Shen, C. P., Shiu, J. -G., Shwartz, B., Simon, F., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Stottler, Z. S., Strube, J. F., Sumiyoshi, T., Takizawa, M., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Usov, Y., Varner, G., Varvell, K. E., Vinokurova, A., Vossen, A., Wang, C. H., Wang, M. -Z., Wang, P., Won, E., Yang, S. B., Ye, H., Yusa, Y., Zhang, Z. P., Zhilich, V., & Zhukova, V. Measurement of the CKM matrix element |Vcb| from B0→D*-ℓ+νℓ at Belle. United States. doi:10.1103/PhysRevD.100.052007.
Waheed, E., Urquijo, P., Ferlewicz, D., Adachi, I., Adamczyk, K., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bansal, V., Behera, P., Beleño, C., Bernlochner, F., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Campajola, M., Červenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Di Carlo, S., Doležal, Z., Dong, T. V., Dossett, D., Eidelman, S., Epifanov, D., Fast, J. E., Fulsom, B. G., Garg, R., Gaur, V., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Grzymkowska, O., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hedges, M. T., Hou, W. -S., Hsu, C. -L., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jeon, H. B., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Kahn, J., Kaliyar, A. B., Karyan, G., Kawasaki, T., Kim, C. H., Kim, D. Y., Kim, K. T., Kim, S. H., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, J. Y., Lee, S. C., Li, C. H., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liventsev, D., Lu, P. -C., Luo, T., MacNaughton, J., Masuda, M., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mori, T., Mussa, R., Nakamura, I., Nakao, M., Nath, K. J., Natkaniec, Z., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Park, H., Park, S. -H., Paul, S., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Prim, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shebalin, V., Shen, C. P., Shiu, J. -G., Shwartz, B., Simon, F., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Stottler, Z. S., Strube, J. F., Sumiyoshi, T., Takizawa, M., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Usov, Y., Varner, G., Varvell, K. E., Vinokurova, A., Vossen, A., Wang, C. H., Wang, M. -Z., Wang, P., Won, E., Yang, S. B., Ye, H., Yusa, Y., Zhang, Z. P., Zhilich, V., and Zhukova, V. Wed . "Measurement of the CKM matrix element |Vcb| from B0→D*-ℓ+νℓ at Belle". United States. doi:10.1103/PhysRevD.100.052007.
@article{osti_1561335,
title = {Measurement of the CKM matrix element |Vcb| from B0→D*-ℓ+νℓ at Belle},
author = {Waheed, E. and Urquijo, P. and Ferlewicz, D. and Adachi, I. and Adamczyk, K. and Aihara, H. and Al Said, S. and Asner, D. M. and Atmacan, H. and Aushev, T. and Ayad, R. and Babu, V. and Badhrees, I. and Bansal, V. and Behera, P. and Beleño, C. and Bernlochner, F. and Bhuyan, B. and Bilka, T. and Biswal, J. and Bobrov, A. and Bonvicini, G. and Bozek, A. and Bračko, M. and Browder, T. E. and Campajola, M. and Červenkov, D. and Chang, P. and Chekelian, V. and Chen, A. and Cheon, B. G. and Chilikin, K. and Cho, H. E. and Cho, K. and Choi, S. -K. and Choi, Y. and Choudhury, S. and Cinabro, D. and Cunliffe, S. and Di Carlo, S. and Doležal, Z. and Dong, T. V. and Dossett, D. and Eidelman, S. and Epifanov, D. and Fast, J. E. and Fulsom, B. G. and Garg, R. and Gaur, V. and Garmash, A. and Giri, A. and Goldenzweig, P. and Golob, B. and Grzymkowska, O. and Haba, J. and Hara, T. and Hayasaka, K. and Hayashii, H. and Hedges, M. T. and Hou, W. -S. and Hsu, C. -L. and Iijima, T. and Inami, K. and Inguglia, G. and Ishikawa, A. and Iwasaki, M. and Iwasaki, Y. and Jacobs, W. W. and Jeon, H. B. and Jia, S. and Jin, Y. and Joffe, D. and Joo, K. K. and Kahn, J. and Kaliyar, A. B. and Karyan, G. and Kawasaki, T. and Kim, C. H. and Kim, D. Y. and Kim, K. T. and Kim, S. H. and Kinoshita, K. and Kodyš, P. and Korpar, S. and Kotchetkov, D. and Križan, P. and Kroeger, R. and Krokovny, P. and Kuhr, T. and Kulasiri, R. and Kuzmin, A. and Kwon, Y. -J. and Lange, J. S. and Lee, J. Y. and Lee, S. C. and Li, C. H. and Li, L. K. and Li, Y. B. and Li Gioi, L. and Libby, J. and Lieret, K. and Liventsev, D. and Lu, P. -C. and Luo, T. and MacNaughton, J. and Masuda, M. and Matvienko, D. and Merola, M. and Metzner, F. and Miyabayashi, K. and Miyata, H. and Mizuk, R. and Mohanty, G. B. and Mori, T. and Mussa, R. and Nakamura, I. and Nakao, M. and Nath, K. J. and Natkaniec, Z. and Nayak, M. and Niiyama, M. and Nisar, N. K. and Nishida, S. and Nishimura, K. and Ogawa, S. and Ono, H. and Pakhlov, P. and Pakhlova, G. and Pal, B. and Pardi, S. and Park, H. and Park, S. -H. and Paul, S. and Pestotnik, R. and Piilonen, L. E. and Popov, V. and Prencipe, E. and Prim, M. and Rostomyan, A. and Russo, G. and Sakai, Y. and Salehi, M. and Sandilya, S. and Sanuki, T. and Savinov, V. and Schneider, O. and Schnell, G. and Schueler, J. and Schwanda, C. and Seino, Y. and Senyo, K. and Seon, O. and Sevior, M. E. and Shebalin, V. and Shen, C. P. and Shiu, J. -G. and Shwartz, B. and Simon, F. and Sokolov, A. and Solovieva, E. and Stanič, S. and Starič, M. and Stottler, Z. S. and Strube, J. F. and Sumiyoshi, T. and Takizawa, M. and Tanida, K. and Tenchini, F. and Trabelsi, K. and Uchida, M. and Uglov, T. and Unno, Y. and Uno, S. and Usov, Y. and Varner, G. and Varvell, K. E. and Vinokurova, A. and Vossen, A. and Wang, C. H. and Wang, M. -Z. and Wang, P. and Won, E. and Yang, S. B. and Ye, H. and Yusa, Y. and Zhang, Z. P. and Zhilich, V. and Zhukova, V.},
abstractNote = {We present a new measurement of the Cabibbo-Kobayashi-Maskawa matrix element |Vcb| from B0→D*−ℓ+νℓ decays, reconstructed with the full Belle data set of 711  fb−1 integrated luminosity. Two form factor parametrizations, originally conceived by the Caprini-Lellouch-Neubert (CLN) and the Boyd, Grinstein and Lebed (BGL) groups, are used to extract the product F(1)ηEW|Vcb| and the decay form factors, where F(1) is the normalization factor and ηEW is a small electroweak correction. In the CLN parametrization we find F(1)ηEW|Vcb|=(35.06±0.15±0.56)×10−3, ρ2=1.106±0.031±0.007, R1(1)=1.229±0.028±0.009, R2(1)=0.852±0.021±0.006. For the BGL parametrization we obtain F(1)ηEW|Vcb|=(34.93±0.23±0.59)×10−3, which is consistent with the world average when correcting for F(1)ηEW. The branching fraction of B0→D*−ℓ+νℓ is measured to be B(B0→D*−ℓ+νℓ)=(4.90±0.02±0.16)%. We also present a new test of lepton flavor universality violation in semileptonic B decays, B(B0→D*−e+ν)B(B0→D*−μ+ν)=1.01±0.01±0.03. The errors quoted correspond to the statistical and systematic uncertainties, respectively. This is the most precise measurement of F(1)ηEW|Vcb| and form factors to date and the first experimental study of the BGL form factor parametrization in an experimental measurement.},
doi = {10.1103/PhysRevD.100.052007},
journal = {Physical Review D},
number = 5,
volume = 100,
place = {United States},
year = {2019},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
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DOI: 10.1103/PhysRevD.100.052007

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