http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Heavy-quark meson spectrum tests of the Oktay–Kronfeld action
Bailey, Jon A.,DeTar, Carleton,Jang, Yong-Chull,Kronfeld, Andreas S.,Lee, Weonjong,Oktay, Mehmet B. Springer-Verlag 2017 European Physical Journal C Vol.77 No.11
<P>The Oktay-Kronfeld (OK) action extends the Fermilab improvement program for massive Wilson fermions to higher order in suitable power-counting schemes. It includes dimension-six and -seven operators necessary for matching to QCD through order O(A(QCD)(3)/m(Q)(3)) in HQET power counting, for applications to heavy-light systems, and O(upsilon(6)) in NRQCD power counting, for applications to quarkonia. In the Symanzik power counting of lattice gauge theory near the continuum limit, the OK action includes all O(a(2)) and some O(a(3)) terms. To assess whether the theoretical improvement is realized in practice, we study combinations of heavy-strange and quarkonia masses and mass splittings, designed to isolate heavy-quark discretization effects. We find that, with one exception, the results obtained with the tree-level-matched OK action are significantly closer to the continuum limit than those obtained with the Fermilab action. The exception is the hyperfine splitting of the bottom-strange system, for which our statistical errors are too large to draw a firm conclusion. These studies are carried out with data generated with the tadpole-improved Fermilab and OK actions on 500 gauge configurations from one of MILC's a approximate to 0.12 fm, N-f = 2 + 1-flavor, asqtad-staggered ensembles.</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
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>