Study of Rare B Meson Decays at Belle

Iijima, T.

doi:10.1142/9789812811219_0011

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…and b References to experimental groups are: BaBar Ba1 [44], Ba2 [45], Ba3 [46], Ba4 [47], Ba5 [4], Belle Be1 [48], Be2 [49], Be3 [50], CLEO Cl1 [51] and Cl2 [52].…”

Section: Table 6 Factorization Matrix Elements Qimentioning

confidence: 99%

Factorization and hadronicBdecays in the heavy quark limit

Cottingham

Whittingham

Groot

et al. 2002

J. Phys. G: Nucl. Part. Phys.

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Abstract. Recent theoretical investigations (M. Beneke et al 1999 Phys. Rev. Lett. 83 1914 of two-body hadronic B decays have provided justification, at least to order α s , for the use of the factorization ansatz to evaluate the B decay matrix elements provided the decay meson containing the spectator quark is not heavy. Although data is now available on many charmless two-body B decay channels, it is so far not very precise with systematic and statistical errors in total of the order of 25% or greater. We take an overview of these channels and of other channels containing vector mesons. Because factorization involves many poorly known soft QCD parameters, and because of the imprecision of current data, we present simplified formulae for a wide range of B decays into the lowest mass pseudoscalar and vector mesons. These formulae, valid in the heavy quark limit, involve a reduced set of soft QCD parameters and, although resulting in some loss of accuracy, should still provide an adequate and transparent tool with which to confront data for some time to come. Finally we confront these formulae with data on nineteen channels. We find a plausible set of soft QCD parameters that, apart from three pseudoscalar vector channels, fit the branching ratios and the recently measured value of sin(2β) quite well.

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“…and b References to experimental groups are: BaBar Ba1 [44], Ba2 [45], Ba3 [46], Ba4 [47], Ba5 [4], Belle Be1 [48], Be2 [49], Be3 [50], CLEO Cl1 [51] and Cl2 [52].…”

Section: Table 6 Factorization Matrix Elements Qimentioning

confidence: 99%

Factorization and hadronicBdecays in the heavy quark limit

Cottingham

Whittingham

Groot

et al. 2002

J. Phys. G: Nucl. Part. Phys.

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“…The FWMs have been applied in the context of the ATLAS and CMS experiments [1][2][3] but are not widely used. In contrast, the B-factories, such as Belle and BaBar, use the FWMs extensively to partition phase space [4,5]. In particular, the FWMs are used in the algorithms to suppress the continuum background [6].…”

Section: Introductionmentioning

confidence: 99%

Modification of Fox-Wolfram moments for hadron colliders

Spiller

2016

J. High Energ. Phys.

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Collisions of composite particles impose an arbitrary boost in the longitudinal direction on a given event. This implies that the centre-of-mass frame at hadron colliders is undetermined for processes with missing energy in the final state. This motivates the modification of the Fox-Wolfram moments such that the moments for a given event are identical when viewed in the lab or centre-of-mass frame of the beam. The resulting moments are invariant under rotations in the plane transverse to the beam and boosts parallel to the beam. These moments are then used to demonstrate improved signal separation in the channel where the Higgs decays to two b-quarks while being produced in association with a vector boson.

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QCD factorization in B→πK, ππ decays and extraction of Wolfenstein parameters

et al. 2001

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We examine some consequences of the QCD factorization approach to non-leptonic B decays into πK and ππ final states, including a set of enhanced power corrections. Among the robust predictions of the approach we find small strong-interaction phases (with one notable exception) and a pattern of CP-averaged branching fractions, which in some cases differ significantly from the current central values reported by the CLEO Collaboration.

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Study of Rare B Meson Decays at Belle

Cited by 3 publications

References 9 publications

Factorization and hadronicBdecays in the heavy quark limit

Factorization and hadronicBdecays in the heavy quark limit

Modification of Fox-Wolfram moments for hadron colliders

QCD factorization in B→πK, ππ decays and extraction of Wolfenstein parameters

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