Measurement of (→Dℓ) and determination of |V|

Abe, K.; R, Abe; T, Abe; Adachi, I.; Ahn, Byoung Sup; Aihara, H.; Akatsu, M.; Asano, Y.; Aso, T.; Aulchenko, V.; Aushev, T.; Bakich, A. M.; Ban, Y.; Banaś, E.; Behari, S.; Behera, P. K.; Bondar, A.; Bożek, A.; Browder, T. E.; Casey, B. C.K.; Chang, P.; Chào, Y.; Cheon, B. G.; Chistov, R.; Choi, S. K.; Choi, Y.; Liu, Dong; Drutskoy, A.; Eidelman, S.; Eiges, V.; Everton, C.W.; Fang, F.; Fujii, Hirofumi; Fukunaga, C.; Fukushima, M.; Gabyshev, N.; Garmash, A.; Gershon, T.; Gordon, A.; Guo, R. S.; Haba, J.; Hamasaki, Hiroshi; Hanagaki, K.; Handa, F.; Hara, K.; Hara, T.; Hastings, N. C.; Hayashii, H.; Hazumi, M.; Heenan, E. M.; Higuchi, I.; Higuchi, T.; Hojo, T.; Hokuue, T.; Hoshi, Y.; Hoshina, K.; Hou, S.; Hou, W.-S.; Hsu, S.-C.; Huang, Hsuan-Cheng; Igarashi, Y.; Iijima, T.; Ikeda, H.; Inami, K.; Ishikawa, A.; Ishino, H.; Itoh, R.; Iwasaki, H.; Iwasaki, Y.; Jackson, D.; Jałocha, P.; Jang, H. K.; Kang, J. H.; Kang, J. S.; Kapusta, P.; Katayama, N.; Kawai, H.; Kawamura, N.; Kawasaki, T.; Kichimi, H.; Kim, D. W.; Kim, Heejong; Kim, H. J.; Kim, H. O.; Kim, Hyun Woo; Kim, S. K.; Kim, T. H.; Kinoshita, K.; Konishi, H.; Korpar, S.; Križan, P.; Krokovny, P.; Kulasiri, R.; Kumar, Suneel; Kuzmin, A.; Kwon, Y. J.; Lange, J. S.; Leder, G.; Lee, S. H.; Liventsev, D.; Lu, R.-S.; MacNaughton, J.; Matsubara, T.; Matsumoto, S.; Matsumoto, T.; Mikami, Y.; Miyabayashi, K.; Miyake, H.; Miyata, H.; Moloney, G. R.; Mori, Shigeki; Mori, T.; Murakami, Akira; Nagamine, T.; Nagasaka, Y.; Nagashima, Y.; Nakadaira, T.; Nakano, E.; Nakao, M.; Nam, J. W.; Natkaniec, Z.; Neichi, K.; Nishida, S.; Nitoh, O.; Noguchi, S.; Nozaki, T.; Ogawa, S.; Ohshima, T.; Okabe, T.; Okuno, S.; Olsen, S. L.; Ostrowicz, W.; Ozaki, H.; Pakhlov, P.; Pałka, H.; Park, C. S.; Park, C. W.; Park, H.; Park, K. S.; Peak, L. S.; Perroud, J. P.; Peters, M.; Piilonen, L. E.; Prebys, E.; Rodriguez, J. L.; Root, N.; Różańska, M.; Ryuko, J.; Sagawa, H.; Sakai, Y.; Sakamoto, H.; Satapathy, M.; Satpathy, A.; Schrenk, S.; Semenov, S.; Senyo, K.; Sevior, M. E.; Shibuya, H.; Shwartz, B.; Singh, J. B.; Stanič, S.; Sugiyama, A.; Sumisawa, K.; Sumiyoshi, T.; Suzuki, S.; Suzuki, S.; Swain, S. K.; Takahashi, T.; Takasaki, F.; Takita, M.; Tamai, K.; Tamura, N.; Tanaka, J.; Tanaka, M.; Tanaka, Y.; Taylor, G. N.; Teramoto, Y.; Tomoto, M.; Tomura, T.; Tovey, S. N.; Trabelsi, K.; Tsuboyama, T.; Tsukamoto, T.; Uehara, S.; Ueno, K.; Unno, Y.; Uno, S.; Ushiroda, Y.; Vahsen, S.; Varvell, K. E.; Wang, C. C.; Wang, C. H.; Wang, J. G.; Wang, M. Z.; Watanabe, Y.; Won, E.; Yabsley, B.; Yamada, Y.; Yamaga, M.; Yamaguchi, A.; Yamamoto, H.; Yamashita, Y.; Yamauchi, M.; Yanaka, S.; Yashima, J.; Yokoyama, M.; Yoshida, K.; Yuan, Y.; Yusa, Y.; Zhang, C. C.; Zhang, J.; Zhao, H. W.; Zheng, Y.; Zhilich, V.; Žontar, D.

doi:10.1016/s0370-2693(01)01483-6

Cited by 54 publications

(31 citation statements)

References 21 publications

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“…This value of |V cb | is consistent with previous values obtained from D * ℓν decays [44,45,46,47], but is somewhat higher. However, we note our ability to reconstruct cos θ B−D * ℓ makes our analysis approximately four times less sensitive to the poorly known D * Xℓν background, and furthermore allows us to constrain it with the data.…”

Section: Discussionsupporting

confidence: 92%

Determination of theB¯→Dlν¯
Adam¹,
Alexander²,
Bebek³
et al. 2003
Phys. Rev. D*
40
3
25
0
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In the Standard Model, the charged current of the weak interaction is governed by a unitary quark mixing matrix that also leads to CP violation. Measurement of the Cabibbo-Kobayashi-Maskawa (CKM) matrix elements is essential to searches for new physics, either through the structure of the CKM matrix, or a departure from unitarity. We determine the CKM matrix element |V cb | using a sample of 3 × 10 6 BB events in the CLEO detector at the Cornell Electron Storage Ring. We determine the yield of reconstructedB 0 → D * + ℓν and B − → D * 0 ℓν decays as a function of w, the boost of the D * in the B rest frame, and from this we obtain the differential decay rate dΓ/dw. By extrapolating dΓ/dw to w = 1, the kinematic end point at which the D * is at rest relative to the B, we extract the product |V cb |F(1), where F(1) is the form factor at w = 1. We find |V cb |F(1) = 0.0431 ± 0.0013(stat.) ± 0.0018(syst.). We combine |V cb |F(1) with theoretical results for F(1) to determine |V cb | = 0.0469 ± 0.0014(stat.) ± 0.0020(syst.) ± 0.0018(theo.). We also integrate the differential decay rate over w to obtain B(B 0 → D * + ℓν) = (6.09 ± 0.19 ± 0.40)% and B(B − → D * 0 ℓν) = (6.50 ± 0.20 ± 0.43)%.2

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Section: Discussionsupporting

confidence: 92%

Determination of theB¯→Dlν¯
Adam¹,
Alexander²,
Bebek³
et al. 2003
Phys. Rev. D*
40
3
25
0
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“…Using Eq. (1) and an experimental result for |V cb |F(1) [14], we obtain |V cb | as given in Fig. 1.…”

Section: B → Dsupporting

confidence: 53%

Semileptonic and decays in flavor lattice QCD

Okamoto

Aubin

Bérnard

et al. 2005

Nuclear Physics B - Proceedings Supplements

133

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We present results for form factors of semileptonic decays of D and B mesons in 2 + 1 flavor lattice QCD using the MILC gauge configurations. With an improved staggered action for light quarks, we successfully reduce the systematic error from the chiral extrapolation. The results for D decays are in agreement with experimental ones. The results for B decays are preliminary. Combining our results with experimental branching ratios, we then obtain the CKM matrix elements |V cd |, |Vcs|, |V cb | and |V ub |. We also check CKM unitarity, for the first time, using only lattice QCD as the theoretical input.

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“….86 ± 0.24 ± 0.11 ± 0.06% [30], which is consistent, within experimental uncertainties, with the SM, and with Belle [31]. Note also that the inclusive b → cτν branching ratio was determined at the LEP experiments [32].…”

Section: Charged Higgs At B-factoriessupporting

confidence: 79%

Constraining the Couplings of a Charged Higgs to Heavy Quarks

Cornell¹

2012

Particle Physics

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Measurement of (→Dℓ) and determination of |V|

Cited by 54 publications

References 21 publications

Determination of theB¯→Dlν¯
Adam¹,
Alexander²,
Bebek³
et al. 2003
Phys. Rev. D*
40
3
25
0
View full text Add to dashboard Cite

Determination of theB¯→Dlν¯
Adam¹,
Alexander²,
Bebek³
et al. 2003
Phys. Rev. D*
40
3
25
0
View full text Add to dashboard Cite

Semileptonic and decays in flavor lattice QCD

Constraining the Couplings of a Charged Higgs to Heavy Quarks

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Measurement of (→Dℓ) and determination of |V|

Cited by 54 publications

References 21 publications

Determination of theB¯→D*lν¯Adam1, Alexander2, Bebek3 et al. 2003Phys. Rev. D403250View full textAdd to dashboardCite

Determination of theB¯→D*lν¯Adam1, Alexander2, Bebek3 et al. 2003Phys. Rev. D403250View full textAdd to dashboardCite

Semileptonic and decays in flavor lattice QCD

Constraining the Couplings of a Charged Higgs to Heavy Quarks

Contact Info

Product

Resources

About

Determination of theB¯→Dlν¯
Adam¹,
Alexander²,
Bebek³
et al. 2003
Phys. Rev. D*
40
3
25
0
View full text Add to dashboard Cite

Determination of theB¯→Dlν¯
Adam¹,
Alexander²,
Bebek³
et al. 2003
Phys. Rev. D*
40
3
25
0
View full text Add to dashboard Cite