Filters: Date: "2009-01" Collection: ir_uspace
1 - 25 of 3
| Creator | Title | Description | Subject | Date | ||
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DeTar, Carleton | B̄→D*ℓν̄ form factor at zero recoil from three-flavor lattice QCD: a model independent determination of [Vcb] | We present the first lattice QCD calculation of the form factor for B→ D* lv with three flavors of sea quarks. We use an improved staggered action for the light valence and sea quarks (the MILC configurations), and the Fermilab action for the heavy quarks. The form factor is computed at zero recoi... | Staggered quarks | 2009-01 |
| 2 |
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Boehme, Christoph | Fast nuclear spin hyperpolarization of phosphorus in silicon | We experimentally demonstrate a method for obtaining nuclear spin hyperpolarization, that is, polarization significantly in excess of that expected at thermal equilibrium. By exploiting a nonequilibrium Overhauser process, driven by white light irradiation, we obtain more than 68% negative nuclear p... | Hyperpolarization; Spin coherence; Electrical readout | 2009-01 |
| 3 |
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Khan, Faisal Habib | Multiple-load-source integration in a multilevel modular capacitor-clamped DC-DC converter featuring fault tolerant capability | A multilevel modular capacitor-clamped dc-dc converter (MMCCC) will be presented in this paper with some of its advantageous features. By virtue of the modular nature of the converter, it is possible to integrate multiple loads and sources with the converter at the same time. The modular construct... | DC-DC power conversion; Power capacitors; Power conversion; Power MOSFETs; Capacitor-clamped converter | 2009-01 |
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