منابع مشابه
Enhancement of Loop-induced H±w∓z0 Vertex
We discuss the non-decoupling effects on the loop-induced H±W∓Z0 vertex in the general two Higgs-doublet model. The decay process H± → W±Z0 is analyzed at one-loop level and possible enhancement of the decay width is explored. We find that a novel enhancement can be realized by the Higgs non-decoupling effects with large mass difference between charged and CP-odd Higgs bosons. The branching rat...
متن کاملOn e + e − → W + W − → 4f(+γ) at LEP2 ∗
The results on ee → WW → 4f(+γ) obtained by different groups are compared with each other. Differences in the results for the total cross section of up to about 0.6 % are traced back to different ways of implementing the double-pole approximation. Suppported by the BMFT, Bonn, Germany, Contract 05 HT9PBA2
متن کامل→ W + W − γ at LEP 2 and NLC
We present sensitivity limits on the coefficients of a dimension–6 effective Lagrangian that parametrizes the possible effects of new physics beyond the Standard Model. Our results are based on the study of the process e + e − → W + W − γ at LEP2 and NLC energies. In our calculations, we include all the new anomalous interactions, involving vector and Higgs bosons, and take into account the Sta...
متن کاملEnhancement of Loop Induced H±W∓Z0 Vertex in Two Higgs-doublet Model
The non-decoupling effects of heavy Higgs bosons as well as fermions on the loop-induced H±W∓Z0 vertex are discussed in the general two Higgs doublet model. The decay width of the process H± → W∓Z0 is calculated at one-loop level and the possibility of its enhancement is explored both analytically and numerically. We find that the novel enhancement of the decay width can be realized by the Higg...
متن کاملF/W e+e- INTERACTIONS*
INTRODUCTION The field of e+e-interactions has provided a great deal of excitement in the past few years. 1-9 Primarily, interest has centered around the reaction +-ee-hadrons. This reaction is particularly attractive because we believe in electromagnetic perturbation theory, which implies that the cross section for hadron production is dominated by one photon annihilation of the electron and p...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 1988
ISSN: 0550-3213
DOI: 10.1016/0550-3213(88)90463-4