If dark matter is a wimp, it potentially can not only be discovered but also studied in detail in highenergy collider experiments. The relic abundance of the axino dark matter from thermal production is mostly determined by decays of the heavier axinos in the normal mass ordering. Surface brightness profiles from dark matter annihilation for various components of the pha1 simulation of a rich galaxy cluster. Determining supersymmetric parameters with dark matter. There is almost universal agreement among astronomers that most of the mass in the universe and most of the mass in the galactic halo is dark. The search for neutralino dark matter with high energy neutrinos minimal supersymmetric model minimal supergravity model msugra msugra with nonuniversal higgs masses ii. In this article, we explore the ability of direct and indirect dark matter experiments to not only detect neutralino dark matter, but to constrain and measure the parameters of supersymmetry. Motivations for expecting supersymmetry to appear at energies. In many supersymmetric standard models there is a heavy stable particle such as neutralino which could serve as a weakly interacting massive particle wimp dark matter candidate.
Models for the dark matter particle span a huge range of masses, from 1 millionth of an. Our group had made substantial contributions to the theoretical study of supersymmetry. Icecube, deepcore, pingu and the indirect search for. Pdf supersymmetric dark matter in light of wmap yudi.
Prospects for detecting supersymmetric dark matter in the. Dark matter models in nonsupersymmetric so10 unification. First of all, supersymmetry can provide a particle that is a dark matter candidate. Supersymmetric dark matter 3 experimental evidence for the existence of dark matter is overwhelming.
A comparison of the significance for the signal plus background hypothesis vertical axis of a chosen. The most convincing observational evidence for the existence of dark matter involves galactic dynamics. Dark matter is the dominant form of matter in the universe, but its nature is unknown. The dark matter puzzle and a supersymmetric solution andrew box uh physics. Dark matter really exists, and we are observing the effects of its gravitational attraction.
It was bruno zumino, together with julius wess, who discovered the possibility of supersymmetry in fourdimensional spacetime back in 1973. The stability of the dark matter is guaranteed by a remnant z 2 symmetry embedded naturally in so10. Although alternative explanations in terms of modi. Implications of dark matter in supersymmetric models. Rotation curve spiral galaxies rotate for object on stable circular orbit. Is the lightest supersymmetric partner the dark matter. Related content earthly probes of the smallest dark matter halos jonathan m. Supersymmetry can also help to unify the fundamental forces of nature. Supersymmetry implies that stable nontopological solitons, qballs, could form in the early universe and could make up all or part of dark matter. In supersymmetric models, two higgs doublets are required to give mass to all fermions. Of the many wimp candidates, perhaps the best motivated and certainly the most theoretically developed is the neutralino, the lightest superpartner in many supersymmetric theories.
Paul bergeron and stefano profumo jcap012014026 view the article online for updates and enhancements. Oct 06, 2015 the models that give the correct dark matter relic density have supersymmetric mass spectra that are exceptional in some way. Histo rically, dark matter was proposed in order to explain a number of anomalous astrophysical obse rvations in which the effects of gravity could not be accounted for by the measured mass of luminous matter. The evidence for nonbaryonic dark matter is compelling at all observed astrophysical scales 1, 2. The existence of a supersymmetric dark matter candidate is related closely to rparity. The search program for dark matter at the atlas and cms experiments at the large hadron collider is comprehensive, and includes both supersymmetric dark matter candidates and other alternatives. Supersymmetric dark matter how light can the lsp be. Something is wrong with our understanding of gravity, causing us to mistakenly infer the existence of dark matter. Oct 06, 2015 if dark matter is a wimp, then studies of dark matter in astrophysical settings tie into studies of possible new physics at the 100gev to tev energy scale. Pdf the extra particles provided by supersymmetry susy appear as natural candidates for exotica such as the missing dark matter of the universe. Many supersymmetric models predict the existence of a new stable, invisible.
This exponentially enhances the thermal yield compared to the conventional axino. There are a number of indications that the supersymmetry theory is right. We build models base on various dark matter production mechanism, including the nonequilibrium thermal dark matter scenario, the weakly. Still, if the lightest neutralino is the dark matter, our universe is based on one of these exceptional cases. Where will supersymmetric dark matter first be seen. Cornell and stefano profumoclosing in on supersymmetric electroweak baryogenesis with dark matter searches. Indeed, it is hypothesized that several natural qforges exist in neutron stars that have captured relic qballs, which are naturally formed during the supersymmetric phase transitions that occurred. Supersymmetric dark matter supersymmetric dark matter jungman, gerard. I am definitely not one hundred percent convinced that supersymmetry exists we do not know. Aug 01, 2000 supersymmetric dark matter supersymmetric dark matter griest, kim. Thus some recent studies have included a variety of effects in the. Implications of dark matter in supersymmetric models, university of helsinki, 2015, 77 pages, helsinki institute of physics, internal report series, hip201404, isbn 9789521081200, issn 14550563.
It is plausibly an elementary particle, perhaps the lightest supersymmetric partner of known particle species. Direct, indirect and collider searches howard baer university of oklahoma outline. Many lines of reasoning suggest that the dark matter consists of some new, as yet undiscovered, weakly interacting massive particle wimp. Surface brightness is given in units of annihilation photons cm. The link between supersymmetry and dark matter is exemplary. The earliest, and perhaps still most convincing, evidence.
Such structures have the ability to create antimatter from matter or matter from antimatter for as long as a suitable supply can be maintained. Many lines of reasoning suggest that the dark matter consists of some new, as yet undiscovered, weaklyinteracting massive particle wimp. Pdf supersymmetric dark matter how light can the lsp be. Supersymmetric dark matter in the harsh light of the large. Implications of new cmb data for neutralino dark matter. Finally, the potential implications of a higgs boson. One of the most complete theoretical frameworks that includes a dark matter candidate is supersymmetry. Atlas experiment sets strong constraints on supersymmetric. In particular, we explore the relationship between the phenomenological quantities relevant to dark matter experiments, such as the neutralino annihilation and elastic scattering cross sections, and the. Neutralino dark matter could be observed experimentally in nature either indirectly or directly.
Supersymmetric clockwork axionmodel and axino darkmatter. We show that the relic qballs passing through earth can produce a detectable neutrino flux. Then we must understand the physical implications of that choice. Pdf using a very minimal set of theoretical assumptions we derive a lower limit on the lsp mass in the mssm. On recent developments in theoretical and experimental general relativity, gravitation and relativistic field theories vol. Neutrinos from the terrestrial passage of supersymmetric dark. For indirect observation, gamma ray and neutrino telescopes look for evidence of neutralino annihilation in regions of high dark matter density such as the galactic or solar centre. The dark matter puzzle and a supersymmetric solution.
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