Pair production of neutralinos via gluon-gluon collisions

Abstract

The production of a neutralino pair via gluon-gluon fusion is studied in the minimal supersymmetric model(MSSM) at proton-proton colliders. The numerical analysis of their production rates are carried out in the mSUGRA scenario. The results show that this cross section may reach about 80 femto barn for ${\tilde{\chi }}_1^0{\tilde{\chi }}_2^0$ pair production and 23 femto barn for ${\tilde{\chi }}_2^0{\tilde{\chi }}_2^0$ pair production with suitable input parameters at the future LHC collider. It shows that this loop mediated process can be competitive with the quark-antiquark annihilation process at the LHC.

Comments: LaTex file, l4 pages, 5 EPS figures