Selectron Studies at e-e- and e+e- Colliders

Details Selectron Studies at e-e- and e+e- Colliders Selectron Studies at e-e- and e+e- Colliders

2001-05-11

arxiv.org/abs/hep-ph/0105100v1

Phys.Rev. D64 (2001) 115002

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 11 figures

Scientific paper

10.1103/PhysRevD.64.115002

Selectrons may be studied in both e-e- and e+e- collisions at future linear colliders. Relative to e+e-, the e-e- mode benefits from negligible backgrounds and \beta threshold behavior for identical selectron pair production, but suffers from luminosity degradation and increased initial state radiation and beamstrahlung. We include all of these effects and compare the potential for selectron mass measurements in the two modes. The virtues of the e-e- collider far outweigh its disadvantages. In particular, the selectron mass may be measured to 100 MeV with a total integrated luminosity of 1 fb^-1, while more than 100 fb^-1 is required in e+e- collisions for similar precision.

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