The LHC diphoton resonance and dark matter
By Y. Mambrini, G. Arcadi, Abdelhak Djouadi. 2015
144 citations recorded by the source corpus.
Abstract A resonance with a mass of approximately 750 GeV has recently been “observed” at the LHC in its diphoton decay. If this state is not simply a statistical fluctuation which will disappear with more data, it could have important implications not only for particle physics but also for cosmology. In this note, we analyze the implications of such a resonance for the dark matter (DM). Assuming a spin- 1 2 DM particle, we first verify that indeed the correct relic density can be obtained for a wide range of the particle mass and weak scale coupling, that are compatible with present data. We then show that the combination of near future direct and indirect detection experiments will allow to probe the CP-nature of the mediator resonance, i.e. discriminate whether it is a scalar or a pseudoscalar like particle.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/2e60774852710f94ddbd1d05d3c942e54149d96c
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Astronomy and Astrophysics
In Nuclear and High Energy Physics
- M. Raidal
- G. Arcadi
- Lian-tao Wang
- M. Low
- Abdelhak Djouadi
- Andrea Tesi
- Cms Collaboration
- Alessandro Strumia
Citations in the corpus
- Dark Matter through the Higgs portal (2019, background): “The Higgs effective Lagrangian will be then LH = gHWWHW+µ W−µ + gHZZHZµZµ − ∑ f gHffHf̄LfR+h.c. .”
- A pseudoscalar decaying to photon pairs in the early LHC Run 2 data (2015, background): “These studies have looked at the effective theory for a spin-0 resonance [3–5], the effective theory including an additional field for dark matter [6, 7], adding vector-like quarks to enhance the interactions of the resonance with photons and gluons [8, 9], adding a confining sector that is vector-l”