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21 papers · 2 filters
Dimensionally Regulated One-Loop Integrals
Z. Bern, L. Dixon, D. A. Kosower
We describe methods for evaluating one-loop integrals in $4-2\e$ dimensions. We give a recursion relation that expresses the scalar -point integral as a cyclicly symmetric combi…
The Subleading Isgur-Wise Form Factor to Order in QCD Sum Rules
M. Neubert, Z. Ligeti, Y. Nir
We calculate the contributions arising at order in the QCD sum rule for the spin-symmetry violating universal function , which appears at order in the…
Relativistic Constituent Quark Model of Electroweak Properties of Baryons
Felix Schlumpf
We calculate the electroweak properties of nucleons and hyperons in a relativistic constituent quark model using the light-front formalism. The parameters of the model, namely the…
Hydrodynamic Stability Analysis of Burning Bubbles in Electroweak Theory and in QCD
P. Huet, K. Kajantie, R. G. Leigh +2
Assuming that the electroweak and QCD phase transitions are first order, upon supercooling, bubbles of the new phase appear. These bubbles grow to macroscopic sizes compared to the…
Two-loop corrections to the Isgur-Wise function in QCD sum rules
Matthias Neubert
We complete the QCD sum rule analysis of the Isgur Wise form factor at next-to-leading order in renormalization-group improved perturbation theory. To this end, the…
Analyticity and the Isgur-Wise Function
Adam F. Falk, Michael Luke, Mark B. Wise
We reconsider the recent derivation by de Rafael and Taron of bounds on the slope of the Isgur-Wise function. We argue that one must be careful to include cuts starting below the h…