Measurement of the CKM matrix element vertical bar V-cb vertical bar from B-0 -> D*(-)l(+)nu(l) at Belle

Measurement of the CKM matrix element |Vcb | from B0 →d∗-ℓ+νℓ at Belle
  • Waheed, E.
  • Urquijo, P.
  • Ferlewicz, D.
  • Adachi, I.
  • Adamczyk, K.
  • ... Cheon, B. G.
  • 외 182명
Citations

WEB OF SCIENCE

58
Citations

SCOPUS

129

초록

We present a new measurement of the Cabibbo-Kobayashi-Maskawa matrix element vertical bar V-cb vertical bar from B-0 -> D*(-)l(+)nu(l) decays, reconstructed with the full Belle data set of 711 fb(-1) integrated luminosity. Two form factor parametrizations, originally conceived by the Caprivi-Lellouch-Neubert (CLN) and the Boyd, Grinstein and Lebed (BGL) groups, are used to extract the product F(1)eta(EW)vertical bar V-cb vertical bar and the decay form factors, where F(1) is the normalization factor and eta(EW) is a small electroweak correction. In the CLN parametrization we find F(1)eta(EW)vertical bar V-cb vertical bar = (35.06 +/- 0.15 +/- 0.56) x 10(-3), rho(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)eta(EW)vertical bar V-cb vertical bar = (34.93 +/- 0.23 +/- 0.59) x 10(-3), which is consistent with the world average when correcting for F(1)eta(EW). The branching fraction of B-0 -> D*(-)l(+)nu(l )is measured to be B(B-0 -> D*(-)l(+)nu(l))= (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(+)nu)/B(B-0 -> D*(-)mu(+)nu) = 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)eta(EW)vertical bar V-cb vertical bar and form factors to date and the first experimental study of the BGL form factor parametrization in an experimental measurement.

키워드

DISPERSIVE BOUNDSIDENTIFICATION
제목
Measurement of the CKM matrix element vertical bar V-cb vertical bar from B-0 -> D*(-)l(+)nu(l) at Belle
제목 (타언어)
Measurement of the CKM matrix element |Vcb | from B0 →d∗-ℓ+νℓ at Belle
저자
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.Beleno, C.Bernlochner, F.Bhuyan, B.Bilka, T.Biswal, J.Bobrov, A.Bonvicini, G.Bozek, A.Bracko, M.Browder, T. E.Campajola, M.Cervenkov, 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.Dolezal, 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.Kodys, P.Korpar, S.Kotchetkov, D.Krizan, 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.Gioi, L. LiLibby, 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.Stanic, S.Staric, 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.
DOI
10.1103/PhysRevD.100.052007
발행일
2019-09
유형
Article
저널명
Physical Review d
100
5
페이지
1 ~ 32

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