Spin effects and electromagnetic properties of W and Z° — bosons in reactions γe+→W±V, Z°e±.

B K Kerimov,P G Buras

doi:10.1063/1.38272

B K Kerimov, P G Buras

https://doi.org/10.1063/1.38272

Copy DOI

Export

Save

Cite

Abstract
Full-Text
Similar Papers

Abstract

Listen

The processes of intermediate W± and Z° — bosons production are considered in polarized beams of photon‐electron collisions − γ+e±→ Z°+e± (a), γ+e±→W±+Ve (b). The influence of anomalous magnetic dipole (HW) and electric quadrupole (λW) moments of W — boson on the characteristics of reactions (b) is researched, and the CP‐violation effects in reaction (a) caused by the existence of possible anomalous magnetic dipole (Hz) and electric quadrupole (λz) moments of Z° — boson are exposed. It has been shown, in particular, that if the colliding electron (positron) and photon beams have the same helicity, then the cross‐section of process (a) is very sensitive to changes of electromagnetic parameters Hz and λz of vertex ZZγ when energy √S→mz. The measuring of right‐left asymmetry of reaction (b) cross‐sections by photon helicities near the production threshold of W — boson would allow us to evaluate the values of electro‐magnetic parameters HW and λW of vertex WWγ, when considerable deviation from standard electroweak model can be observed.The processes of intermediate W± and Z° — bosons production are considered in polarized beams of photon‐electron collisions − γ+e±→ Z°+e± (a), γ+e±→W±+Ve (b). The influence of anomalous magnetic dipole (HW) and electric quadrupole (λW) moments of W — boson on the characteristics of reactions (b) is researched, and the CP‐violation effects in reaction (a) caused by the existence of possible anomalous magnetic dipole (Hz) and electric quadrupole (λz) moments of Z° — boson are exposed. It has been shown, in particular, that if the colliding electron (positron) and photon beams have the same helicity, then the cross‐section of process (a) is very sensitive to changes of electromagnetic parameters Hz and λz of vertex ZZγ when energy √S→mz. The measuring of right‐left asymmetry of reaction (b) cross‐sections by photon helicities near the production threshold of W — boson would allow us to evaluate the values of electro‐magnetic parameters HW and λW of vertex WWγ, when considerable deviation from standard electr...

Full Text