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Lee, S.E.,Chang, H.J.,Rizvi, A.,Hadamitzky, M.,Kim, Y.J.,Conte, E.,Andreini, D.,Pontone, G.,Volpato, V.,Budoff, M.J.,Gottlieb, I.,Lee, B.K.,Chun, E.J.,Cademartiri, F.,Maffei, E.,Marques, H.,Leipsic, J C. V. Mosby Co 2016 American Heart Journal Vol.182 No.-
<P>Background The natural history of coronary artery disease (CAD) in patients with low-to-intermediate risk is not well characterized. Although earlier invasive serial studies have documented the progression of atherosclerotic burden, most were focused on high-risk patients only. The PARADIGM registry is a large, prospective, multinational dynamic observational registry of patients undergoing serial coronary computed tomographic angiography (CCTA). The primary aim of PARADIGM is to characterize the natural history of CAD in relation to clinical and laboratory data. Design The PARADIGM registry (ClinicalTrials. gov NCT02803411) comprises >= 2,000 consecutive patients across 9 cluster sites in 7 countries. PARADIGM sites were chosen on the basis of adequate CCTA volume, site CCTA proficiency, local demographic characteristics, and medical facilities to ensure a broad-based sample of patients. Patients referred for clinically indicated CCTA will be followed up and enrolled if they had a second CCTA scan. Patients will also be followed up beyond serial CCTA performance to identify adverse CAD events that include cardiac and noncardiac death, myocardial infarction, unstable angina, target vessel revascularization, and CAD-related hospitalization. Summary The results derived from the PARADIGM registry are anticipated to add incremental insight into the changes in CCTA findings in accordance with the progression or regression of CAD that confer prognostic value beyond demographic and clinical characteristics.</P>
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