B0(s)-B0(s)mixing andbhadron lifetimes from lattice QCD

Flynn, Jonathan M.; Lin, C.-J. David

doi:10.1088/0954-3899/27/6/322

Cited by 7 publications

(3 citation statements)

References 47 publications

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“…The other B parameter B S , which is relevant to the B s meson width difference, has also been calculated in the quenched approximation (42,100,(102)(103)(104)(105)(106). The physical result for s / s including next-to-leading-order QCD corrections is 0.074 ± 0.024 (107), which can be compared to the current experimental average 0.07 +0.09 −0.07 (80).…”

Section: B 0 -B 0 Mixing: Quenched Lattice Resultsmentioning

confidence: 89%

Heavy Quarks on the Lattice

Hashimoto

Onogi

2004

Annu. Rev. Nucl. Part. Sci.

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Key Words lattice QCD, quarkonium, B meson ■ Abstract Lattice quantum chromodynamics provides first-principles calculations for hadrons containing heavy quarks-charm and bottom quarks. Their mass spectra, decay rates, and some hadronic matrix elements can be calculated on the lattice in a model-independent manner. In this review, we introduce the effective theories that treat heavy quarks on the lattice. We summarize results on the heavy quarkonium spectrum, which verify the validity of the effective theory approach. We then discuss applications to B physics, which is the main target of the lattice theory of heavy quarks. We review progress in lattice calculations of the B meson decay constant, the B parameter, semileptonic decay form factors, and other important quantities.

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Section: B 0 -B 0 Mixing: Quenched Lattice Resultsmentioning

confidence: 89%

Heavy Quarks on the Lattice

Hashimoto

Onogi

2004

Annu. Rev. Nucl. Part. Sci.

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“…⊛ Until this year, there was only one lattice study of the matrix elements (2.1), and that one was made in the static limit of HQET [30] (see also ref. [31]). This year, the first lattice QCD computation of ∆B = 0 operators has been performed [32], the main features of which will be explained in the next subsection.…”

Section: Ratios Of the B-meson Lifetimesmentioning

confidence: 99%

Theoretical progress in describing the B-meson lifetimes

Bečirević¹

2001

Proceedings of International Europhysics Conference on High Energy Physics — PoS(hep2001)

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The present status of the theoretical estimates of the difference between the widths of the neutral B s -mesons and of the B-meson lifetime ratios is reviewed. In particular, the lattice results for the matrix elements of the relevant ∆B = 2 operators are updated and the first lattice QCD results for the matrix elements of ∆B = 0 operators are presented. In both cases, the NLO perturbative QCD corrections in the coefficient functions have been included. The theoretically updated results are: (∆Γ/Γ) Bs = 7±4 %, τ (B + )/τ (B d ) = 1.07(3) and τ (B s )/τ (B d ) = 1.00(2). * SV (Shifman-Voloshin limit) is the limit in which ΛQCD ≪ m b − 2mc ≪ m b [5]. † For recent reviews on the computation of (∆Γ/Γ)B s , see also refs. [6,7].

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“…Some selected reviews in the long history of lattice calculations for the B mixing system can be found in Refs [23,24,25,26,27,28,29,30,31]…”

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Heavy meson chiral perturbation theory in finite volume

Arndt

Lin

2004

Phys. Rev. D

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We present the first step towards the estimation of finite volume effects in heavy-light meson systems using heavy meson chiral perturbation theory. We demonstrate that these effects can be amplified in both light-quark and heavy-quark mass extrapolations (interpolations) in lattice calculations. As an explicit example, we perform a one-loop calculation for the neutral B meson mixing system and show that finite volume effects, which can be comparable with currently quoted errors, are not negligible in both quenched and partially quenched QCD.

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B⁰_(s)-B⁰_(s)mixing andbhadron lifetimes from lattice QCD

Cited by 7 publications

References 47 publications

Heavy Quarks on the Lattice

Heavy Quarks on the Lattice

Theoretical progress in describing the B-meson lifetimes

Heavy meson chiral perturbation theory in finite volume

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