Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-12-21
Phys.Rev.D75:075022,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
23 pages, 6 figures, version accepted for publication in Physical Review D
Scientific paper
10.1103/PhysRevD.75.075022
We investigate the possibility of measuring the H^\pm W^\mp Z^0 vertex from the single $H^\pm$ production process via WZ fusion at the CERN Large Hadron Collider (LHC). This vertex strongly depends on the structure of the Higgs sector in various new physics scenarios, so that its measurement can be useful to distinguish the models. A signal and background simulation under the expected detector performance at the LHC is done for the processes of pp \to W^\pm Z^0 X \to H^\pm X \to tbX and pp \to W^\pm Z^0 X \to H^\pm X \to W^\pm Z^0 X, and the required magnitudes of the H^\pm W^\mp Z^0 vertex for observation are evaluated. It is found that although the loop induced H^\pm W^\pm Z^0 vertex in multi-Higgs doublet models cannot be measurable, the latter process can be useful to test the model with a real and a complex triplets.
Asakawa Eri
Kanemura Shinya
Kanzaki Jun-ichi
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