%0 Journal Article
%T Spin discrimination in three-body decays
%A Edelhauser, L.
%A Porod, W.
%A Singh, R. K.
%J Journal of High Energy Physics
%D 2010
%V 08
%N 8
%I Springer
%@ 1126-6708
%G English
%F Edelhauser_etal2010
%O ISI:000282368500014
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=355), last updated on Wed, 23 Feb 2011 19:22:51 +0000
%X The identification of the correct model for physics beyond the Standard Model requires the determination of the spin of new particles. We investigate to which extent the spin of a new particle X can be identified in scenarios where it decays dominantly in three-body decays X -> f (f) over barY. Here we assume that Y is a candidate for dark matter and escapes direct detection at a high energy collider such as the LHC. We show that in the case that all intermediate particles are heavy, one can get information on the spins of X and Y at the LHC by exploiting the invariant mass distribution of the two standard model fermions. We develop a model-independent strategy to determine the spins without prior knowledge of the unknown couplings and test it in a series of Monte Carlo studies.
%K Beyond Standard Model
%K Supersymmetric Standard Model
%R 10.1007/JHEP08(2010)053
%U http://arxiv.org/abs/1005.3720
%U https://doi.org/10.1007/JHEP08(2010)053
%P 053-31pp