Lattice QCD calculation of form factors describing the rare decays B → K[superscript *]ℓ[superscript +]ℓ[superscript -] and B[subscript s] → φℓ[superscript +]ℓ[superscript -]
Name
PhysRevD.89.094501.pdf
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1.65 MB
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Checksum (MD5)
3009e76a73ad0136fa1016e56e62022d
Author(s)
Horgan, Ronald R.
Liu, Zhaofeng
Meinel, Stefan
Wingate, Matthew
Date Issued
May 2014
Journal
Physical Review D
Publisher
American Physical Society
Citation
Horgan, Ronald R., Zhaofeng Liu, Stefan Meinel, and Matthew Wingate. “Lattice QCD Calculation of Form Factors Describing the Rare Decays B → K[superscript *]ℓ[superscript +]ℓ[superscript -] and B[subscript s] → φℓ[superscript +]ℓ[superscript -].” Phys. Rev. D 89, no. 9 (May 2014). © 2014 American Physical Society
Version
Final published version
Abstract
The rare decays B[superscript 0] → K[superscript *0]μ[superscript +]μ[superscript −] and B[subscript s] → ϕμ[superscript +]μ[superscript −] are now being observed with enough precision to test Standard Model predictions. A full understanding of these decays requires accurate determinations of the corresponding hadronic form factors. Here we present results of lattice QCD calculations of the B → K[superscript *] and B[subscript s] → ϕ form factors. We also determine the form factors relevant for the decays B[subscript s] → K[superscript *]ℓν and B[subscript s] → [bar over K][superscript *0]ℓ[superscript +]ℓ[superscript −]. We use full-QCD configurations including 2+1 flavors of sea quarks using an improved staggered action, and we employ lattice nonrelativistic QCD to describe the bottom quark.
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.89.094501
