2011/09/30 by Randy Lewis, Claudio Pica, Francesco Sannino · 1 citation
Physics and Astronomy · #hep-ph #hep-lat
paper · pdf · doi:10.1103/physrevd.85.014504
published as Phys.Rev.D85:014504,2012 · 22 pages, 8 figures, published version
arxiv created 2012/01/13 · arxiv updated 2013/05/29
The SU(2) gauge theory with two massless Dirac flavors constitutes the building block of several models of Technicolor. Furthermore it has also been used as a template for the construction of a natural light asymmetric, or mixed type, dark matter candidate. We use explicit lattice simulations to confirm the pattern of chiral symmetry breaking by determining the Goldstone spectrum and therefore show that the dark matter candidate can, de facto, be constituted by a complex Goldstone boson. We also determine the phenomenologically relevant spin-one and spin-zero isovector spectrum and demonstrate that it is well separated from the Goldstone spectrum.