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Differential Geometrical Formulation of Gauge Theory of Gravity
Differential geometric formulation of quantum gauge theory of gravity is
studied in this paper. The quantum gauge theory of gravity which is proposed in
the references hep-th/0109145 and hep-th/0112062 is formulated completely in
the framework of traditional quantum field theory. In order to study the
relationship between quantum gauge theory of gravity and traditional quantum
gravity which is formulated in curved space, it is important to find the
differential geometric formulation of quantum gauge theory of gravity. We first
give out the correspondence between quantum gauge theory of gravity and
differential geometry. Then we give out differential geometric formulation of
quantum gauge theory of gravity.Comment: 10 pages, no figur
Chiral Perturbation Theory and the Strong Interaction
We have calculated the potentials of the heavy (charmed or bottomed)
pseudoscalar mesons up to with the heavy meson chiral
perturbation theory. We take into account the contributions from the football,
triangle, box, and crossed diagrams with the 2 exchange and one-loop
corrections to the contact terms. We notice that the total 2-exchange
potential alone is attractive in the small momentum region in the channel
, , or , while repulsive in the channel .
Hopefully the analytical chiral structures of the potentials may be useful in
the extrapolation of the heavy meson interaction from lattice QCD simulation.Comment: 14 pages, 8 figures, 4 tables; discussion extended, references added,
version published in Phys. Rev.
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