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Measurement of the form factors of the decay B-0 -> D*(-) l(+) v(l) and determination of the CKM matrix element vertical bar V-cb vertical bar
- Authors
- Dungel, W.; Schwanda, C.; Adachi, I.; Aihara, H.; Aushev, T.; Aziz, T.; Bakich, A. M.; Balagura, V.; Barberio, E.; Bischofberger, M.; Bozek, A.; Bracko, M.; Browder, T. E.; Chang, P.; Chao, Y.; Chen, A.; Chen, P.; Cheon, B. G.; Chistov, R.; Cho, I. -S.; Cho, K.; Choi, K. -S.; Choi, Y.; Dalseno, J.; Drutskoy, A.; Eidelman, S.; Ha, H.; Haba, J.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hou, W. -S.; Iijima, T.; Inami, K.; Iwabuchi, M.; Iwasaki, Y.; Joshi, N. J.; Julius, T.; Kang, J. H.; Kawasaki, T.; Kim, H. J.; Kim, H. O.; Kim, J. H.; Kim, M. J.; Kim, Y. J.; Kinoshita, K.; Ko, B. R.; Krizan, P.; Krokovny, P.; Kuhr, T.; Kumita, T.; Kuzmin, A.; Kwon, Y. -J.; Kyeong, S. -H.; Lee, M. J.; Lee, S. -H.; Li, J.; Limosani, A.; Liu, C.; Liu, Y.; Liventsev, D.; Louvot, R.; Matyja, A.; McOnie, S.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Mori, T.; Nakano, E.; Nakao, M.; Natkaniec, Z.; Neubauer, S.; Nishida, S.; Nitoh, O.; Nozaki, T.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Pakhlova, G.; Park, C. W.; Park, H.; Park, H. K.; Petric, M.; Piilonen, L. E.; Prim, M.; Roehrken, M.; Rozanska, M.; Ryu, S.; Sahoo, H.; Sakai, K.; Sakai, Y.; Schneider, O.; Schwartz, A. J.; Senyo, K.; Sevior, M. E.; Shiu, J. -G.; Singh, J. B.; Smerkol, P.; Sokolov, A.; Stanic, S.; Staric, M.; Sumiyoshi, T.; Suzuki, S.; Tanaka, S.; Taylor, G. N.; Teramoto, Y.; Trabelsi, K.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Varner, G.; Varvell, K. E.; Vervink, K.; Wang, C. H.; Wang, P.; Watanabe, M.; Watanabe, Y.; Wedd, R.; Williams, K. M.; Won, E.; Yamashita, Y.; Zander, D.; Zhang, Z. P.; Zhou, P.; Zhulanov, V.; Zivko, T.
- Issue Date
- 30-12월-2010
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW D, v.82, no.11
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW D
- Volume
- 82
- Number
- 11
- ISSN
- 1550-7998
- Abstract
- This article describes a determination of the Cabibbo-Kobayashi-Maskawa matrix element vertical bar V-cb vertical bar from the decay B-0 -> D*(-) l(+) v(l) using 711 fb(-1) of Belle data collected near the Y(4S) resonance. We simultaneously measure the product of the form factor normalization F(1) and the matrix element vertical bar V-cb vertical bar as well as the three parameters rho(2), R-1(1) and R-2(1), which determine the form factors of this decay in the framework of the heavy quark effective theory. The results, based on about 120 000 reconstructed B-0 -> D*(-) l(+) v(l) decays, are rho(2) = 1.214 +/- 0.034 +/- 0.009, R-1(1) = 1.401 +/- 0.034 +/- 0.018, R-2(1) = 0.864 +/- 0.024 +/- 0.008 and F(1)vertical bar V-cb vertical bar = (34.6 +/- 0.2 +/- 1.0) x 10(-3). The branching fraction of B-0 -> D*(-) l(+) v(l) is measured at the same time; we obtain a value of B-0 -> D*(-) l(+) v(l) = (4.58 +/- 0.03 +/- 0.26)%. The errors correspond to the statistical and systematic uncertainties. These results give the most precise determination of the form factor parameters and F(1)vertical bar V-cb vertical bar to date. In addition, a direct, model-independent determination of the form factor shapes has been carried out.
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