arXiv subjects

A. A. Pankov

Publications and source records attributed to A. A. Pankov.

56 records · Page 4Linked to original sources

arXiv1994

Model independent constraints on anomalous gauge boson self-couplings from $e^+e^-$ colliders with longitudinally polarized beams

We explore the possibility of deriving model independent limits on the anomalous trilinear electroweak gauge boson couplings from high energy $e^+e^-\to W^+W^-$, by combining the cross sections for the different initial and final states polarizations integrated with suitable kinematical cuts. In the case of the CP conserving couplings the limits can be disentangled, and are given by simple mathematical expressions. Numerical results show the advantages of this approach, in particular the important role of polarization in improving the bounds.

hep-ph↗

arXiv1993

Probing Three-Boson Anomalous Couplings in $e^+e^-\to W^+W^-$ at Future Linear $e^+e^-$ Colliders with Polarized Beams

We study the potential of the next-generation $e^+ e^-$ linear colliders with longitudinally polarized beams, to restrict the values of the anomalous trilinear couplings $WWγ$ and $WWZ$ from the measurement of the process $e^+ e^-\to W^+ W^-$. Along with initial $e^+e^-$ polarization, we account also for the possibilities offered by cross sections for polarized final $W$, in order to disentangle the constraints on the various constants. The results show the essential role of the initial beams polarization in improving the bounds obtained from the unpolarized case.

hep-ph↗