Erratum: Determination of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mo stretchy="false">|</mml:mo><mml:msub><mml:mi>V</mml:mi><mml:mrow><mml:mi>u</mml:mi><mml:mi>b</mml:mi></mml:mrow></mml:msub><mml:mo stretchy="false">|</mml:mo></mml:math>from Measurements of the Electron and Neutrino Momenta in Inclusive Semileptonic<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi></mml:math>decays [Phys. Rev. Lett.<b>95</b>, 111801 (2005)]

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S.; Kofler, R.; Koptchev, V. B.; Li, X.; Moore, T. B.; Saremi, S.; Staengle, H.; Willocq, S.; Cowan, R.; Koeneke, Karsten; Sciolla, G.; Sekula, S. J.; Spitznagel, M.; Taylor, F.; Yamamoto, R. K.; Kim, H.; Patel, P. M.; Robertson, S. H.; Lazzaro, A.; Lombardo, V.; Palombo, F.; Bauer, J. M.; Cremaldi, L.; Eschenburg, V.; Godang, R.; Kroeger, R.; Reidy, J.; Sanders, D. A.; Summers, D. J.; Zhao, H. W.; Brunet, S.; Côté, D.; Taras, P.; Viaud, B.; Nicholson, H.; Cavallo, N.; Nardo, G. De; Fabozzi, F.; Gatto, C.; Lista, L.; Monorchio, D.; Paolucci, P.; Piccolo, D.; Sciacca, C.; Baak, M. A.; Bulten, H.; Raven, G.; Snoek, H. L.; Wilden, L.; Jessop, C.; LoSecco, J. M.; Allmendinger, T.; Benelli, G.; Gan, K. K.; Honscheid, K.; Hufnagel, D.; Jackson, P.; Kagan, H.; Kass, R.; Pulliam, T.; Rahimi, A. M.; Ter-Antonyan, R.; Wong, Q. K.; Brau, J.; Frey, R.; Igonkina, O.; Lu, M.; Potter, C. T.; Sinev, N. 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R.; Chen, X.; Cheng, B.; Dasu, S.; Datta, M.; Eichenbaum, A. M.; Flood, K. T.; Graham, Michael F.; Hollar, J.; Johnson, J. R.; Kutter, P. E.; Li, H.; Liu, R.; Mellado, B.; Mihályi, A.; Pan, Y. B.; Prepost, R.; Tan, P.; Wimmersperg-Toeller, J. H. von; Wu, S. L.; Yu, Z.; Neal, H.

doi:10.1103/physrevlett.97.019903

Cited by 11 publications

(5 citation statements)

References 2 publications

Supporting

Mentioning

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“…This result updates the previous upper bounds [2] by the BELLE collaboration, while the upper bound from the BABAR collaboration (at 90% C.L.) [3]:…”

supporting

confidence: 89%

Implication of the B→(ρ,ω)γ branching ratios for the CKM phenomenology

2004

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We study the implication of the recent measurement by the BELLE collaboration of the averaged branching fractionB exp [B → (ρ, ω) γ] = (1.8 +0.6 −0.5 ± 0.1) × 10 −6 for the CKM phenomenology. Combined with the averaged branching fractionB exp (B → K * γ) = (4.06 ± 0.26) × 10 −5 measured earlier, this yieldsR exp [(ρ, ω) γ/K * γ] = (4.2 ± 1.3)% for the ratio of the two branching fractions. Updating earlier theoretical analysis of these decays based on the QCD factorization framework, and constraining the CKM-Wolfenstein parameters from the unitarity fits, our results yieldB th [B → (ρ, ω) γ] = (1.38 ± 0.42) × 10 −6 andR th [(ρ, ω) γ/K * γ] = (3.3 ± 1.0)%, in agreement with the BELLE data. Leaving instead the CKM-Wolfenstein parameters free, our analysis gives (at 68% C.L.) 0.16 ≤ |V td /V ts | ≤ 0.29, which is in agreement with but less precise than the indirect CKM-unitarity fit of the same, 0.18 ≤ |V td /V ts | ≤ 0.22. The isospin-violating ratio in the B → ργ decays and the SU(3)-violating ratio in the B 0 d → (ρ 0 , ω) γ decays are presented together with estimates of the direct and mixing-induced CP-asymmetries in the B → (ρ, ω) γ decays within the SM. Their measurements will overconstrain the angle α of the CKM-unitarity triangle.

show abstract

“…This result updates the previous upper bounds [2] by the BELLE collaboration, while the upper bound from the BABAR collaboration (at 90% C.L.) [3]:…”

supporting

confidence: 89%

Implication of the B→(ρ,ω)γ branching ratios for the CKM phenomenology

2004

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show abstract

“…whereas only upper bounds are available for the ω 0 γ, ρ 0 γ and ρ + γ modes (of order O(10 −6 ) at 90 % confidence level) [2]. Within the standard model these decays can give measurements of the V td and V ts elements of the CKM matrix.…”

Section: Introductionmentioning

confidence: 99%

Spectator interactions in B→Vγ decays and QCD factorisation

Descotes-Genon¹,

Sachrajda

2004

Nuclear Physics B

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We study the radiative decays B → V γ (where V = ρ, K * ) in the framework of QCD factorisation, and in particular the hard-spectator contributions to the decay amplitudes. For the phenomenologically significant chromomagnetic operator, we show by an explicit next-toleading-order computation that the spectator interactions factorise in the heavy-quark limit, i.e. that they can be written as the convolution of a hard-scattering kernel, computable in perturbation theory, and of the light-cone distribution amplitudes for the B and V mesons which contain the soft physics. The presence of an intermediate scale of O(M B Λ QCD ) leads to the presence of Sudakov logarithms. We indicate how the demonstration of factorisation can be extended to other (four-quark) operators.

show abstract

“…In the case of |V ub |, the exclusive determination benefits from lattice QCD computations for the vector form factors of the decay B → π ν [54][55][56], which can be combined with measurements of the differential decay rate [42,[57][58][59] in order to determine V ub . The inclusive determination [60][61][62][63][64] is more challenging. The full decay rate cannot be accessed, because a cut in the lepton energy must be performed to eliminate the huge b → c ν background.…”

Section: Ub | and |V Cb |mentioning

confidence: 99%

The CKM Parameters

Descotes-Genon

Koppenburg

2017

Annu. Rev. Nucl. Part. Sci.

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The Cabibbo-Kobayashi-Maskawa (CKM) matrix is a key element in describing flavour dynamics in the Standard Model. With only four parameters, this matrix is able to describe a large range of phenomena in the quark sector, such as CP violation and rare decays. It can thus be constrained by many different processes, which have to be measured experimentally with high accuracy and computed with good theoretical control. Recently, with the advent of the B factories and the LHCb experiment taking data, the precision has significantly improved. We review the most relevant experimental constraints and theoretical inputs and present fits to the CKM matrix for the Standard Model and for some topical model-independent studies of New Physics.

show abstract

Erratum: Determination of|Vub|from Measurements of the Electron and Neutrino Momenta in Inclusive SemileptonicBdecays [Phys. Rev. Lett.95, 111801 (2005)]

Cited by 11 publications

References 2 publications

Implication of the B→(ρ,ω)γ branching ratios for the CKM phenomenology

Implication of the B→(ρ,ω)γ branching ratios for the CKM phenomenology

Spectator interactions in B→Vγ decays and QCD factorisation

The CKM Parameters

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