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A new integrable gravitational billiard
We discuss gravitational billiards, i.e. the two-dimensional motion of a paint mass inside a hard boundary curve under the influence of a constant (e.g. gravitational) field. A parabolic boundary is… Expand
Electroweak chiral Lagrangian for a hypercharge-universal topcolor model
Abstract Electroweak chiral Lagrangian for a hypercharge-universal topcolor model is investigated. We find that the assignments of universal hypercharge improve the results obtained previously from… Expand
Electroweak chiral Lagrangian from a natural topcolor-assisted technicolor model
Based on previous studies on computing coefficients of the electroweak chiral Lagrangian from C. T. Hill's schematic topcolor-assisted technicolor model, we generalize the calculation to K. Lane's… Expand