Conveners
Dark Matter II
- Joel Wesley Walker (Texas A & M University (US))
James Bourbeau
(University of Wisconsin)
5/4/15, 4:30 PM
parallel talk
We study collider signatures of a class of dark matter models with a GeV-scale dark
Z'. At hadron colliders, the production of dark matter particles naturally leads to associated production of the Z', which can appear as a narrow jet after it decays hadronically. Contrary to the usual mono-jet signal from initial state radiation, the final state radiation of dark matter can generate the...
Mr
Tathagata Ghosh
(Texas A&M University)
5/4/15, 4:45 PM
parallel talk
We study the muon $(g-2)_{\mu}$ anomaly in light of neutralino dark matter and the LHC. We scan the MSSM parameters relevant to $(g-2)_{\mu}$ and focus on three different cases with different neutralino compositions. For $\tan\beta=10$, we find that the 2$\sigma$ range of $(g-2)_{\mu}$ requires the smuon ($\tilde{\mu}_1$) to be lighter than $\sim$ 500 GeV. The neutralinos,...
Christopher Redino
(SUNY at Buffalo)
5/4/15, 5:00 PM
parallel talk
SUSY models with a modified dark sector require constraints to be reinterpreted, which may allow for scenarios with low tuning. A modified dark sector can also change the phenomenology greatly. The addition of the QCD axion to the MSSM solves the strong CP problem and also modifies the dark sector with new dark matter candidates. This talk describes scenarios where the axion's superpartner,...
Hou Keong Lou
(Princeton University)
5/4/15, 5:15 PM
parallel talk
The dark matter may be a remnant of strong dynamics that is accessible via a weakly coupled
portal. If the hidden-sector states are produced at the Large Hadron Collider (LHC), they would
undergo a QCD-like shower yielding a spray of stable invisible dark matter along with unstable
states that decay back to the Standard Model. Such “semi-visible” jets arise, for example, when
their...
Prof.
Brooks Thomas
(Reed College)
5/4/15, 5:30 PM
parallel talk
Distinguishing between traditional dark-matter models and models with non-minimal dark sectors at hadron colliders is an endeavor which typically requires a detailed analysis of the distributions of relevant kinematic variables rather than simply an identification of an excess in event count. Distribution-based searches of this sort are particularly subtle because cuts imposed on one collider...
Terry Pilkington
(Carleton University)
5/4/15, 5:45 PM
parallel talk
Models with a single additional large electroweak scalar multiplet provide a simple extension to the Standard Model. Such models may also provide a natural dark matter candidate. It is then of great interest to determine what constraints, if any, are to be placed on these models. In this talk, we examine two different classes of models: those with an accidental $U(1)$ symmetry, and those with...
Gopolang Mohlabeng
(University of Kansas)
5/4/15, 6:00 PM
Dark Matter
parallel talk
We explore detection prospects of a non-standard dark sector in the context of boosted dark
matter, which could be detected as visible Cherenkov light in large volume neutrino detectors. In models with multiple candidates, self-interaction of dark matter particles is naturally utilized in the assisted freeze-out mechanism and is corroborated by various cosmological studies such as N-body...
