Bounds on anomalous gamma-gamma-H and Z-gamma-H couplings at future e-gamma linear colliders
Abstract
We study the bounds on the anomalous contributions to the gamma-gamma-H and Z-gamma-H vertices that can be obtained via the process e-gamma-->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 CP-even and CP-odd anomalous couplings contribution to the gamma-gamma-H and Z-gamma-H vertices.
- Publication:
-
arXiv e-prints
- Pub Date:
- July 1999
- DOI:
- 10.48550/arXiv.hep-ph/9907574
- arXiv:
- arXiv:hep-ph/9907574
- Bibcode:
- 1999hep.ph....7574G
- Keywords:
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- High Energy Physics - Phenomenology
- E-Print:
- LaTeX, 6 pages, To appear in the proceedings of the International Workshop on Linear Colliders, Sitges, Barcellona, Spain, April 28 - May 5, (1999)