Global constraints on effective dark matter interactions: relic density, direct detection, indirect detection, and collider

Abstract

An effective interaction approach is used to describe the interactions between the spin 0 or spin 1/2 dark matter particle and the degrees of freedom of the standard model. This approach is applicable to those models in which the dark matter particles do not experience the standardmodel interactions, e.g., hidden-sector models. We explore the effects of these effective interaction operators on (i) dark matter relic density, (ii) spin-independent and spin-dependent dark matternucleon scattering cross sections, (iii) cosmic antiproton and gamma ray fluxes from the galactic halo due to dark matter annihilation, and (iv) monojet and monophoton production plus missing energy at the Tevatron and the Large Hadron Collider (LHC). We combine the experimental data of relic density from WMAP7, spin-independent cross section from XENON100, spin-dependent cross section from XENON10, ZEPLIN-III, and SIMPLE, cosmic antiproton flux from PAMELA, cosmic gamma-ray flux from Fermi -LAT, and the monojet and monophoton data from the Tevatron and the LHC, to put the most comprehensive limits on each effective operator.

Composite scalar dark matter

“…This is however not the case for our composite singlet for three reasons. First, the reach of monojet searches is reduced for a light scalar DM than it is for a fermionic DM [45,46]. Furthermore, in our scenario, the effective coupling of η to gluons depends on the momentum of the process (at the momenta involved in DM direct detection experiments, η couples more strongly to gluons than at collider energies), contrary to ref.…”

Simplified models of dark matter with a long-lived co-annihilation partner

“…The first is based on exploiting effective operators describing the low energy interactions between the DM and the SM particles [17][18][19][20][21][22][23][24][25][26][27][28][29][30]. This EFT approach manifestly does not depend on the UV structure of the (unknown) microscopic dark sector theory and works well when applied to the low energy experiments, such as the direct detection.…”

Classification of effective operators for interactions between the Standard Model and dark matter

“…Dim-6 effective operators for interactions between the Standard Model and DM have been already present in various contexts in the literature [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28]. However the goal of this paper is to construct a basis of operators [29] that then could be consistently adopted to describe different aspects of DM physics.…”