Automating Symmetry-Breaking Calculations

Guidance for isospin-symmetry-breaking calculations

K. G. Leach,1,* P. E. Garrett,1,2 I. S. Towner,3 G. C. Ball,4 V. Bildstein,1 B. A. Brown,5,6 G. A. Demand,1 T. Faestermann,7 P. Finlay,1,† K. L. Green,1 R. Hertenberger,8 R. Krücken,4,7 A. A. Phillips,1 E. T. Rand,1 C. S. Sumithrarachchi,1,‡ C. E. Svensson,1 S. Triambak,1,§ H.-F. Wirth,8 and J. Wong1 1Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada 2Excellence Clust...

Symmetry Breaking

Symmetry occurs in many problems in aritifical intelligence. For example, in the n-queens problem, the chessboard can be rotated 90◦. As a second example, several machines in a factory might have the same capacity. In a production schedule, we might therefore be able to swap the jobs on machines with the same capacity. As a third example, two people within a company might have the same skills. ...

Symmetry Breaking

Symmetry, Symmetry Breaking and Topology

The ground state of a system with symmetry can be described by a group G. This symmetry groupG can be discrete or continuous. Thus for a crystalG is a finite group while for the vacuum state of a grand unified theory G is a continuous Lie group. The ground state symmetry described by G can change spontaneously from G to one of its subgroups H as the external parameters of the system are modifie...

" Electroweak Symmetry Breaking through Supersymmetry Breaking "

The connection between the scales of SU(2) × U(1) gauge symmetry breaking and supersymmetry breaking is didactically displayed in the framework of a T.O.Y. (Theory Overestimating Yukawas) model, a version of the (M + 1)SSM (supersymmetric extension of the standard model with a gauge singlet) in which the relevant parameters are determined in the fixed point regime. Some conspicuous features of ...