Diagonalization of the neutralino mass matrix and boson–neutralino interaction

V.A. Beylin; V.I. Kuksa; R.S. Pasechnik; G.M. Vereshkov

doi:10.1140/epjc/s10052-008-0660-0

EPJ

Diagonalization of the neutralino mass matrix and boson–neutralino interaction

V.A. Beylin¹, V.I. Kuksa¹, R.S. Pasechnik²^* and G.M. Vereshkov¹

¹ Institute of Physics, Southern Federal University (former Rostov State University), Rostov-on-Don, 344090, Russia
² Bogoliubov Laboratory of Theoretical Physics, JINR, 6 Joliot Curie St., Dubna, 141980, Moscow Region, Russia

Received: 5 November 2007
Revised: 2 May 2008
Published online: 17 July 2008

Abstract

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.

23rd International Summer School on Vacuum, Electron, and Ion Technologies (VEIT)
18-22 September 2023
Sozopol, Bulgaria

EPJ

Diagonalization of the neutralino mass matrix and boson–neutralino interaction

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