Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1994-05-16
Phys.Lett.B334:378-390,1994
Physics
High Energy Physics
High Energy Physics - Phenomenology
LateX 21 pages,with 4 figures - figs.3&4 sent upon request-, UA/NPPS-15/1994 In this revised version we correct numerical erro
Scientific paper
10.1016/0370-2693(94)90703-X
We systematically analyze the anomalous dipole $\Delta k_{\gamma}$ and quadrupole $\Delta Q_{\gamma}$ moments of the W gauge bosons in the context of the minimal supersymmetric standard model as functions of the soft SUSY breaking parameters $A_0,m_0,M_{1/2}$ and the top quark mass. The severe constraints imposed by the radiative breaking mechanism of the electroweak symmetry\,$ SU(2)\times U(1)$\, are duly taken into account. The supesymmetric values of $\Delta k_{\gamma}$ and $\Delta Q_{\gamma}$ can be largely different, in some cases, from the standard model predictions but of the same order of magnitude for values of \quad $A_0,m_0,M_{1/2} \leq {\cal O}(1 TeV) $. Therefore possible supersymmetric structure can be probed provided the accuracy of measurements for $\Delta k_{\gamma}$, $\Delta Q_{\gamma}$ reaches $10^{-2}-10^{-3}$ and hence hard to be detected at LEP2. If deviations from the standard model predictions are observed at LEP2, most likely these are not due to an underlying supersymmetric structure. In cases where $M_{1/2} \ll A_0,m_0 $, the charginos and neutralinos may give substantial contributions saturating the LEP2 sensitivity limits. This occurs when their masses $m_{\tilde C},m_{\tilde Z}$ turn out to be both light satisfying $m_{\tilde C}+m_{\tilde Z} \simeq M_W $. However these extreme cases are perturbatively untrustworthy and besides unnatural for they occupy a small region in the parameter space. }
Lahanas A. B.
Spanos Vassilis C.
No associations
LandOfFree
Static Quantities of the W-Boson in the MSSM does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Static Quantities of the W-Boson in the MSSM, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Static Quantities of the W-Boson in the MSSM will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-660151