Phenomenology 2016 Symposium

Session

Dark Matter III

S22

10 May 2016, 16:30

G28 (Benedum Hall)

173. Searches for New Physics with the ATLAS Detector using Jets

Karol Krizka (University of Chicago (US))

10/05/2016, 16:30

parallel talk

The Dark Matter (DM) nature remains one of the great puzzles of particle
physics; while we know that about 27% of the universe is in the form of
DM, little is known about its properties. If produced at the LHC, it should couple to the standard model though some mediator. The mediator can decay into dark
matter particles that escape the detector, leaving a large missing transverse
momentum...

103. Dark Matter Searches at CMS

Yutaro Iiyama (Massachusetts Inst. of Technology (US))

10/05/2016, 16:45

parallel talk

CMS Mono-X (X=jet, V, photon, heavy flavors, etc.) searches will be discussed mainly.

30. Simplified DM models with the full SM gauge symmetry

Alexander Natale (Korea Institute for Advanced Study)

10/05/2016, 17:00

parallel talk

The general strategy for dark matter (DM) searches at colliders currently relies on simplified models, which typically have a limited number of free parameters. In the case of $t$-channel colored mediators, these simplified models often have assumptions on the chirality of the DM-SM interactions with quarks, though generically a UV-complete model with such colored mediators would lead to the...

183. Perturbative Unitarity and Bound States in the Dark Sector

William Shepherd (University of Copenhagen)

10/05/2016, 17:15

parallel talk

See above

31. Towards the Final Word on Neutralino Dark Matter

Nishita Dattatray Desai (ITP, Heidelberg University)

10/05/2016, 17:30

parallel talk

We present a complete phenomenological prospectus for thermal relic neutralinos. Including Sommerfeld enhancements to relic abundance and halo annihilation calculations, we obtain direct, indirect, and collider discovery prospects for all neutralinos with mass parameters M1, M2, |μ|<4  TeV, which freeze out to the observed dark matter abundance, with scalar superpartners decoupled. Much of the...

114. MSSM4G: Reviving Bino Dark Matter with Vector-like 4th Generation Particles

Mohammad Abdullah (University of California , Irvine)

10/05/2016, 17:45

parallel talk

We supplement the minimal supersymmetric standard model (MSSM) with vector-like copies of standard model particles. Such 4th generation fields can simultaneously increase the Bino mass without overclosing the universe, achieve the right Higgs mass with more natural superpartner masses and preserve gauge coupling unification. We verify that the model is safe from current bounds and discuss...

40. $Z^\prime_{BL}$ portal dark matter and LHC Run-2 results

Ms Satomi Okada (Yamagata University)

10/05/2016, 18:00

parallel talk

We consider a concise dark matter scenario in the minimal gauged $B-L$ extension of the Standard Model (SM), where the global $B-L$ (baryon number minus lepton number) symmetry in the SM is gauged,
and three generations of right-handed neutrinos and a $B-L$ Higgs field are introduced.
Associated with the $B-L$ gauge symmetry breaking by a VEV of the $B-L$ Higgs field,
the seesaw...

23. Constraints on Light Dark Matter from Single-Photon Decays of Heavy Quarkonium

Patrick Stengel (University of Hawaii)

10/05/2016, 18:15

parallel talk

We investigate constraints on the interactions of light dark matter with Standard Model quarks in a framework with effective contact operators mediating the decay of heavy flavor bound state quarkonium to dark matter and a photon. When considered in combination with decays to purely invisible final states, constraints from heavy quarkonium decays at high intensity electron-positron colliders...