CP Violation in Supersymmetric Theories: stop2 -> stop1 tau- tau+

Details CP Violation in Supersymmetric Theories: stop2 -> stop1 tau- tau+ CP Violation in Supersymmetric Theories: stop2 -> stop1 tau- tau+

2006-05-11

arxiv.org/abs/hep-ph/0605123v2

Phys.Rev. D74 (2006) 035004

Physics

High Energy Physics

High Energy Physics - Phenomenology

23 pages, revtex, 5 figures (included). Several pieces of text added w.r.t. constraints from electric dipole moments and repha

Scientific paper

10.1103/PhysRevD.74.035004

Supersymmetric (SUSY) theories include many new parameters, some of which are CP-violating. Assuming that SUSY is found at a future high-energy collider, we examine the decay stop2 -> stop1 tau- tau+ with an eye to obtaining information about the new CP phases. We show that there are two CP-violating asymmetries which can be large in some regions of the SUSY parameter space. These involve measuring one or both of the tau spins. These asymmetries are particularly sensitive to phi_At, the phase of the trilinear coupling A_t.

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