Bounds on anomalous gammagammaH and ZgammaH couplings at future egamma linear colliders
Abstract
We study the bounds on the anomalous contributions to the gammagammaH and ZgammaH vertices that can be obtained via the process egamma>e H. We consider the representative case of an intermediate Higgs mass production of MH=120 GeV and for a center of mass energy of Sqrt{S}=500 GeV and Sqrt{S}=1500 GeV. We use a model independent analysis based on SU(2)xU(1) invariant operators of dimension 6 added to the Standard Model lagrangian. We find that this process provides an excelent way to put strong constraints both in the sector of CPeven and CPodd anomalous couplings contribution to the gammagammaH and ZgammaH vertices.
 Publication:

arXiv eprints
 Pub Date:
 July 1999
 arXiv:
 arXiv:hepph/9907574
 Bibcode:
 1999hep.ph....7574G
 Keywords:

 High Energy Physics  Phenomenology
 EPrint:
 LaTeX, 6 pages, To appear in the proceedings of the International Workshop on Linear Colliders, Sitges, Barcellona, Spain, April 28  May 5, (1999)