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| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 1 |
 | DeTar, Carleton | B→πlν semileptonic form factor from three-flavor lattice QCD: a model-independent determination of [Vub] | We calculate the form factor f+(q2) for B-meson semileptonic decay in unquenched lattice QCD with 2 + 1 flavors of light sea quarks. We use Asqtad-improved staggered light quarks and a Fermilab bottom quark on gauge configurations generated by the MILC Collaboration. We simulate with several light... | Semileptonic decay | 2009-03 |
| 2 |
 | DeTar, Carleton | Quark loop effects in semileptonic form factors for heavy-light mesons | We present preliminary results of a determination of the semileptonic form factor for the decay of pseudoscalar heavy-light mesons to pseudoscalar light-light mesons in full QCD. In this preliminary study we focus on the effects of dynamical quark loops. Accordingly, we compare results of simulati... | Semileptonic decay; Form factors; Quark loops; Wilson quarks | 2004-03 |
| 3 |
 | DeTar, Carleton | Semileptonic D → π/K and B → π/D decays in 2+1 flavor lattice QCD | We present results for form factors of semileptonic decays of D and B mesons in 2+1 flavor lattice QCD using the MILC gauge configurations. With an improved staggered action for light quarks, we successfully reduce the systematic error from the chiral extrapolation. The results for D decays are in a... | Semileptonic decay | 2005-03 |
| 4 |
 | DeTar, Carleton | Semileptonic decays of D mesons in three-flavor lattice QCD | We present the first three-flavor lattice QCD calculations for D→ rrlv and D→ Klv semileptonic decays. Simulations are carried out using ensembles of unquenched gauge fields generated by the MILC Collaboration. With an improved staggered action for light quarks, we are able to simulate at light ... | Semileptonic decay; Staggered quarks | 2005-01 |
| 5 |
 | DeTar, Carleton | Semileptonic decays of heavy mesons with the fat clover action | We are studying a variety of semileptonic decays of heavy-light mesons in an effort to improve the determination of the heavy-quark Standard-Model CKM matrix elements. Our fermion action is a novel, improved "fat" clover action that promises to reduce problems with exceptional configurations. Dynami... | Semileptonic decay; Decay constants; Staggered quarks; Fat-clover valence quarks | 2000-04 |
| 6 |
 | DeTar, Carleton | Visualization of semileptonic form factors from lattice QCD | Comparisons of lattice-QCD calculations of semileptonic form factors with experimental measurements often display two sets of points, one each for lattice QCD and experiment. Here we propose to display the output of a lattice-QCD analysis as a curve and error band. This is justified, because lattice... | Semileptonic decay | 2009-08 |
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