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SCET Sum Rules for B to P and B to V Transition Form Factors

Description: We investigate sum rules for heavy-to-light transition form factors at large recoil derived from correlation functions with interpolating currents for light pseudoscalar or vector fields in soft-collinear effective theory (SCET). We consider both, factorizable and nonfactorizable contributions at leading power in the {Lambda}/m{sub b} expansion and to first order in the strong coupling constant {alpha}{sub s}, neglecting contributions from 3-particle distribution amplitudes in the B-meson. We p… more
Date: December 18, 2007
Creator: De Fazio, Fulvia; /INFN, Bari; Feldmann, Thorsten; U., /Siegen; Hurth, Tobias & /SLAC, /CERN
Partner: UNT Libraries Government Documents Department
open access

Exact Attractive Non-BPS STU Black Holes

Description: We develop some properties of the non-BPS attractive STU black hole. Our principle result is the construction of exact solutions for the moduli, the metric and the vectors in terms of appropriate harmonic functions. In addition, we find a spherically-symmetric attractor carrying p{sup 0} (D6 brane) and q{sub a} (D2 brane) charges by solving the non-BPS attractor equation (which we present in a particularly compact form) and by minimizing an effective black hole potential. Finally, we make an ar… more
Date: July 18, 2006
Creator: Kallosh, Renata; /Stanford U., Phys. Dept.; Sivanandam, Navin; Soroush, Masoud & /Stanford U., Phys. Dept. /SLAC
Partner: UNT Libraries Government Documents Department
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