Magnetic Moment of Weak Bosons Produced inppandpp¯Collisions

摘要: We suggest that the reactions $\mathrm{pp}\ensuremath{\rightarrow}{W}^{\ifmmode\pm\else\textpm\fi{}}\ensuremath{\gamma}X$ and $p\overline{p}\ensuremath{\rightarrow}{W}^{\ifmmode\pm\else\textpm\fi{}}\ensuremath{\gamma}X$ are good candidates for measuring magnetic moment parameter $\ensuremath{\kappa}$ in ${\ensuremath{\mu}}_{W}=(\frac{e}{2{M}_{W}})(1+\ensuremath{\kappa})$. The angular distribution of $W$ bosons is particularly sensitive to this parameter. For gauge-theory value $\ensuremath{\kappa}=1$, we have found a peculiar zero $\frac{d\ensuremath{\sigma}(d\overline{u}\ensuremath{\rightarrow}{W}^{\ensuremath{-}}\ensuremath{\gamma})}{d}cos\ensuremath{\theta}$ at $cos\ensuremath{\theta}=\ensuremath{-}\frac{1}{3}$, location depending on quark charge through $cos\ensuremath{\theta}=\ensuremath{-}(1+2{Q}_{d})$. A similar occurs $\frac{d\ensuremath{\sigma}(u\overline{d}\ensuremath{\rightarrow}{W}^{+}\ensuremath{\gamma})}{d}cos\ensuremath{\theta}$. can offer no explanation behavior.