Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-09-06
Phys.Rev. D70 (2004) 095007
Physics
High Energy Physics
High Energy Physics - Phenomenology
26 pages, 5 figures; misprints corrected; reference added
Scientific paper
10.1103/PhysRevD.70.095007
We propose several T-odd asymmetries in the decay chains of the top squarks $\tilde t_m \to t \tilde \chi^0_k$ and $t\to bW^+\to bl\nu$ and $\tilde\chi^0_k \to l^\pm\tilde l_n^\mp \to l^\pm l^\mp\tilde\chi^0_1$, for $l =e,\mu,\tau$. We calculate the asymmetries within the Minimal Supersymmetric Standard Model with complex parameters $M_1$, $\mu$ and $A_t$. We give the analytic formulae for the decay distributions. We present numerical results for the asymmetries and estimate the event rates necessary to observe them. The largest T-odd asymmetry can be as large as 40%.
Bartl Alfred
Christova Ekaterina
Hohenwarter-Sodek Karl
Kernreiter Thomas
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