Diagonalization of the neutralino mass matrix and boson—neutralino interaction

Beylin, V.A.; Kuksa, V.I.; Pasechnik, R.S.; Vereshkov, G.M.
August 2008
European Physical Journal C -- Particles & Fields;Aug2008, Vol. 56 Issue 3, p395
Academic Journal
We analyze a connection between the neutralino mass sign, parity and structure of the neutralino–boson interaction. Correct calculation of spin-dependent and spin-independent contributions to neutralino–nuclear scattering should consider this connection. A convenient diagonalization procedure, based on the exponential parametrization of unitary matrix, is suggested.


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