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B→Kl+l−decay form factors from three-flavor lattice QCD
Bailey, Jon A.,Bazavov, A.,Bernard, C.,Bouchard, C. M.,DeTar, C.,Du, Daping,El-Khadra, A. X.,Foley, J.,Freeland, E. D.,Gá,miz, E.,Gottlieb, Steven,Heller, U. M.,Jain, R. D.,Komijani, J.,Kronfeld American Physical Society 2016 Physical Review D Vol.93 No.2
<P>We compute the form factors for the B --> Kl(+)l(-) semileptonic decay process in lattice QCD using gauge-field ensembles with 2 + 1 flavors of sea quark, generated by the MILC Collaboration. The ensembles span lattice spacings from 0.12 to 0.045 fm and have multiple sea-quark masses to help control the chiral extrapolation. The asqtad improved staggered action is used for the light valence and sea quarks, and the clover action with the Fermilab interpretation is used for the heavy b quark. We present results for the form factors f(+)(q(2)), f(0)(q2), and f(T)(q2), where q(2) is the momentum transfer, together with a comprehensive examination of systematic errors. Lattice QCD determines the form factors for a limited range of q(2), and we use the model-independent z expansion to cover the whole kinematically allowed range. We present our final form-factor results as coefficients of the z expansion and the correlations between them, where the errors on the coefficients include statistical and all systematic uncertainties. We use this complete description of the form factors to test QCD predictions of the form factors at high and low q(2).</P>
Update of|Vcb|from theB¯→D*ℓν¯form factor at zero recoil with three-flavor lattice QCD
Bailey, Jon A.,Bazavov, A.,Bernard, C.,Bouchard, C. M.,DeTar, C.,Du, Daping,El-Khadra, A. X.,Foley, J.,Freeland, E. D.,Gá,miz, E.,Gottlieb, Steven,Heller, U. M.,Kronfeld, A. S.,Laiho, J.,Levkova American Physical Society 2014 PHYSICAL REVIEW D - Vol.89 No.11
B→Dℓνform factors at nonzero recoil and|Vcb|from2+1-flavor lattice QCD
Bailey, Jon A.,Bazavov, A.,Bernard, C.,Bouchard, C. M.,DeTar, C.,Du, Daping,El-Khadra, A. X.,Foley, J.,Freeland, E. D.,Gá,miz, E.,Gottlieb, Steven,Heller, U. M.,Komijani, J.,Kronfeld, A. S.,Laih American Physical Society 2015 PHYSICAL REVIEW D - Vol.92 No.3
B→πllForm Factors for New Physics Searches from Lattice QCD
Bailey, Jon A.,Bazavov, A.,Bernard, C.,Bouchard, C. M.,DeTar, C.,Du, Daping,El-Khadra, A. X.,Freeland, E. D.,Gá,miz, E.,Gottlieb, Steven,Heller, U. M.,Kronfeld, A. S.,Laiho, J.,Levkova, L.,Liu, American Physical Society 2015 Physical Review Letters Vol.115 No.15
|Vub|fromB→πℓνdecays and (2+1)-flavor lattice QCD
Bailey, Jon. A.,Bazavov, A.,Bernard, C.,Bouchard, C. M.,DeTar, C.,Du, D.,El-Khadra, A. X.,Foley, J.,Freeland, E. D.,Gá,miz, E.,Gottlieb, Steven,Heller, U. M.,Komijani, J.,Kronfeld, A. S.,Laiho, American Physical Society 2015 PHYSICAL REVIEW D - Vol.92 No.1