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Bailey, Jon A.,Jang, Yong-Chull,Lee, Weonjong,Leem, Jaehoon,Della Morte, M.,Fritzsch, P.,Gá,miz Sá,nchez, E.,Pena Ruano, C. EDP Sciences 2018 The European Physical Journal Conferences Vol.175 No.-
<P>The CKM matrix element |<I>V</I><I>cb</I>| can be extracted by combining data from experiments with lattice QCD results for the semileptonic form factors for the <I>B̅</I> → <I>D(*)lv̅</I> decays. The Oktay-Kronfeld (OK) action was designed to reduce heavy-quark discretization errors to below 1%, or through O(λ<SUP>3</SUP>) in HQET power counting. Here we describe recent progress on bottom-to-charm currents improved to the same order in HQET as the OK action, and correct formerly reported results of our matching calculations, in which the operator basis was incomplete.</P>
Update on <i>ɛ</i><sub><i>K</i></sub> with lattice QCD inputs
Jang, Yong-Chull,Lee, Weonjong,Lee, Sunkyu,Leem, Jaehoon,Della Morte, M.,Fritzsch, P.,Gá,miz Sá,nchez, E.,Pena Ruano, C. EDP Sciences 2018 The European Physical Journal Conferences Vol.175 No.-
<P>We report updated results for <I>ɛ</I><I>K</I>, the indirect CP violation parameter in neutral kaons, which is evaluated directly from the standard model with lattice QCD inputs. We use lattice QCD inputs to fix [see formula in PDF], and <I>m</I><I>c</I>(<I>m</I><I>c</I>). Since Lattice 2016, the UTfit group has updated the Wolfenstein parameters in the angle-only-fit method, and the HFLAV group has also updated |<I>V</I><I>cb</I>|. Our results show that the evaluation of <I>ɛ</I><I>K</I> with exclusive |<I>V</I><I>cb</I>| (lattice QCD inputs) has 4.0σ tension with the experimental value, while that with inclusive |<I>V</I><I>cb</I>| (heavy quark expansion based on OPE and QCD sum rules) shows no tension.</P>
Bailey, Jon A.,Bhattacharya, Tanmoy,Gupta, Rajan,Jang, Yong-Chull,Lee, Weonjong,Leem, Jaehoon,Park, Sungwoo,Yoon, Boram,Della Morte, M.,Fritzsch, P.,Gá,miz Sá,nchez, E.,Pena Ruano, C. EDP Sciences 2018 The European Physical Journal Conferences Vol.175 No.-
<P>We present the first preliminary results for the semileptonic form factor <I>h</I><I>A</I>1 (<I>w</I> = 1)/<I>ρ</I><I>A</I><I>j</I> at zero recoil for the <I>B</I> → <I>D*l</I><I>v</I> decay using lattice QCD with four flavors of sea quarks. We use the HISQ staggered action for the light valence and sea quarks (the MILC HISQ configurations), and the Oktay-Kronfeld (OK) action for the heavy valence quarks.</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