2000/04/30 by Daisuke Nomura · 2 citations
Physics and Astronomy · #Astrophysics #Collider #Dark Matter and Cosmic Phenomena #Lepton #Luminosity #Mixing (physics) #Neutrino Physics Research #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Supersymmetry #hep-ph
paper · pdf · doi:10.1103/physrevd.64.075001
published as Phys.Rev. D64 (2001) 075001 · 27 pages, 6 figures. A new section added. Conclusion unchanged. To appear in Phys. Rev. D
arxiv created 2001/06/30 · openalex publication_date 2001/08/28 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
It has been argued in the literature that the search for the slepton oscillation phenomenon can be a powerful probe of intergenerational mixing between sleptons, once sleptons are found at future colliders. In this paper we estimate the possible reach of future lepton colliders in probing left-handed slepton flavor mixing, especially mixing between the first and third generations, on which constraints imposed by other processes such as \stackrel\ensuremath→\ensuremathτe\ensuremathγ are very weak. An e+e^\ensuremath- collider is suitable for this purpose, since it can produce, if kinematically allowed, sleptons of the first generation via the t channel, in addition to the s channel. Utilizing e+e^\ensuremath-\ensuremath→\ensuremathτe+4 jets+E/ signal at an e+e^\ensuremath- linear collider with an integrated luminosity L=50 fb^\ensuremath-1(500 fb^\ensuremath-1) it may be possible to reach a mixing angle of sin2\ensuremathθ_\stackrel\ifmmode \else \~\fi\ensuremathν\ensuremath\gtrsim0.06 (0.04) and a mass difference of \ensuremathΔm_\stackrel\ifmmode \else \~\fi\ensuremathν\ensuremath\gtrsim0.07 (0.04) GeV for sneutrinos in the first and third generations at the statistical significance of 5\ensuremathσ.