Excited leptonic states in polarizede−γ ande+e−collisions

Citations Over TimeTop 11% of 1996 papers

Abstract

We analyze the capability of the next generation of linear electron-positron colliders to unravel the spin and couplings of excited leptons predicted by composite models. Assuming that these machines will be able to operate both in the ${\mathit{e}}^{+}$${\mathit{e}}^{\mathrm{\ensuremath{-}}}$ and ${\mathit{e}}^{\mathrm{\ensuremath{-}}}$\ensuremath{\gamma} modes, we study the effects of the excited electrons of spin 1/2 and 3/2 in the reactions ${\mathit{e}}^{\mathrm{\ensuremath{-}}}$\ensuremath{\gamma}\ensuremath{\rightarrow}${\mathit{e}}^{\mathrm{\ensuremath{-}}}$\ensuremath{\gamma} and ${\mathit{e}}^{+}$${\mathit{e}}^{\mathrm{\ensuremath{-}}}$\ensuremath{\rightarrow}\ensuremath{\gamma}\ensuremath{\gamma}. We show how the use of polarized beams is able not only to increase the reach of these machines, but also to determine the spin and couplings of the excited states. \textcopyright{} 1996 The American Physical Society.

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