EPJ

2024 Impact factor 4.8
EPJ C - Particles and Fields
Particles and Fields
Eur. Phys. J. C 32, 561-574 (2004)
DOI: 10.1140/epjc/s2003-01520-x

Neutralino pair production in a $\gamma \gamma $ collider

G.J. Gounaris1, J. Layssac2, P.I. Porfyriadis1 and F.M. Renard2

1  Department of Theoretical Physics, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
2  Physique Mathématique et Théorique, UMR 5825, Université Montpellier II, 34095 Montpellier Cedex 5, France

renard@LPM.univ-montp2.fr

(Received: 6 November 2003 / / Published online: 9 January 2004)

Abstract
We present a complete one-loop study of the process $\gamma \gamma \to \tilde \chi^0_i \tilde \chi^0_j$ and the predicted cross section in a $\gamma \gamma $ Linear Collider. A suitable numerical code, PLATONlc, valid for any set of real MSSM parameters, is released. This study and code are complementary to those suitable for dark matter detection through the inverse process $\tilde \chi^0_i \tilde \chi^0_j \to \gamma\gamma$ describing neutralino-neutralino annihilation at rest, which were presented previously. If SUSY is realized in nature, both codes should be very helpful in future astrophysical and collider studies of the neutralino sector.



© Società Italiana di Fisica, Springer-Verlag 2004

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