case western reserve university



Detecting Dark Matter in the Milky Way

March 12-14, 2009

The workshop will focus on the dark matter problem locally -- its spatial and kinematic distribution in the Milky Way, and observational and experimental efforts (current and future) to detect it. We are assembling a small group of observers, theorists, and experimentalists to meet and discuss the outstanding problems in the field.

The structure of the workshop will be informal and geared towards interaction and collaboration rather than formal presentations. We are planning several half-day sessions focusing on different aspects of the dark matter problem which will consist of several short contributions of research highlights or outstanding problems to be solved, followed by open discussion of the issues involved.

This workshop is sponsored by CWRU's Center for Education and Research in Cosmology and Astrophysics (CERCA) and its Institute for the Science of Origins (ISO), as well as by the CWRU Departments of Astronomy and Physics.

Scientific Topics

(1) Distribution of dark matter on galactic scales (spatial & kinematic)
-- The distribution of DM at the galactic center
-- DM substructure
-- The phase space properties of the DM near the solar circle

McGaugh: The baryonic and dark matter distribution of the Milky Way
Morrison: Measuring the Mass of the Milky Way with SEGUE data
Helmi: Phase space structure of DM near the solar circle
Johnson: Detection of Dark Matter with SDSS-III/APOGEE
Kuhlen: Non-maxwellian velocity distribution of DM halo
Frenk: The phase-space properties of DM at the solar circle
Johnston: Constraining the Potential with Phase-Space Lumps

(2) Constraints on dark matter from dwarf galaxies
-- cusps vs cores
-- dwarf galaxy masses
-- dwarf galaxies as indirect emitters

Strigari: Dark matter constraints
Helmi: A common mass scale for MW satellites
Simon: Stellar Kinematics of the Faintest Dwarfs
McGaugh: The cusp-core problem

(3) Indirect/astronomical detection methods: gamma rays, X-rays, etc
-- GLAST searches
-- keV X-rays from DM annihilation
-- positrons (Pamela)
-- the WMAP (and Planck) haze

Siegal-Gaskins: Identifying a dark matter signal using the angular
        power spectrum of diffuse gamma-ray emission
(quicktime version)
Kuhlen: Indirect detection of DM annihilation in subhalos with Sommerfeld
Bertone: New data on positrons
Buckley: Gamma-ray searches for dark matter, experimental prospects
Hooper: Indirect detection
Cumberbatch: The WMAP haze

(4) Direct detection methods: what new information is coming?
-- brief report on current status of conventional searches
-- new work on model-independent and low thresholds
-- scope of measurables for the decade+ plus program

Collar: Results using ultra-low noise germanium detectors
Sciolla: Directional direct detection of Dark Matter
Hall: Searching for Low Mass WIMPS with the CDMS Detectors
Copi: Measurables
Shutt: Decadal view of Liquid Nobles
Akerib: Current status of conventional searches
Strigari: Neutrino backgrounds for DM detectors

(5) Physics "outside the box"
-- guidelines for non-conventional searches
-- new avenues for R&D
-- Sommerfeld enhancements
-- light dark matter:
       keV DM (sterile neutrinos)
       MeV DM

Boyanovsky: Clustering properties of a sterile neutrino

(6) The LHC as a dark matter factory
-- current view of possible candidates --
      WIMPS: the LSP
             everything else -- KK dark matter, other exotic WIMPS
-- mid-course corrections/extensions to direct detection?

Preliminary Schedule

(All Sessions to be held in the Inamori Center in Crawford.)

Thursday March 12

 9:00 -  9:30: Overview (Dan Hooper)

 9:30 - 10:15: Distribution of Dark Matter I
10:15 - 10:45: Coffee
10:45 - 12:00: Distrib of Dark Matter II

12:00 -  1:30: Lunch

 1:30 - 2:30: Direct Detection I
 2:30 - 3:00: Coffee
 3:00 - 4:00: Indirect methods I
 4:15 - 5:30: Frenk colloquium (Rock 301)

Friday March 13

 9:00 - 10:15: Physics outside the box / LHC as a dark matter factory
10:15 - 10:45: Coffee
10:45 - 12:00: Constraints from Dwarf Galaxies

12:00 -  1:30: Lunch

 1:30 -  3:00: Indirect Methods II
 3:00 -  3:30: Coffee
 3:30 -  5:00: Open discussion

Saturday March 14

 9:00 - 10:15: Direct Detection II
10:15 - 10:45: Coffee
10:45 - 12:00: Final Discussion

Visiting Participants

Gianfranco Bertone (IAP)
Dan Boyanovsky (Pittsburgh)
James Buckley (Wash U)
Juan Collar (Chicago)
Carlos Frenk (Durham)
Jeter Hall (Fermilab)
Amina Helmi (Groningen)
Dan Hooper (Fermilab)
Jennifer Johnson (OSU)
Kathryn Johnston (Columbia)
Michael Kuhlen (IAS)
Stacy McGaugh (Maryland)
Harry Nelson (UCSB)
Gabriella Sciolla (MIT)
Jennifer Siegal-Gaskins (OSU)
Josh Simon (OCIW)
Louis Strigari (Stanford)
Neil Weiner (NYU)