Transcript The Cosmic FronPier Josh Frieman DES Project Director Fermilab and University of Chicago Oddone Farewell Symposium, Fermilab, June 13, 2013

The Cosmic FronPier
Josh Frieman
DES Project Director
Fermilab and University of Chicago
Oddone Farewell Symposium, Fermilab, June 13, 2013
Cosmic Frontier at Fermilab
has blossomed under Pier
Dark Energy
31precise
staffsurveys
scientists,
~28 map
FTEs
Deep,
of the universe:
history of expansion and
growth of structure to probeMgmt
physics of cosmic acceleration:
SDSSDESDESI, LSST
Initiatives
Dark Matter
Holometer
Direct detection of WIMP dark matter particles:
CDMS, COUPP, Darkside, DAMIC
Cosmic Rays
Dark Energy
Highest Energy Cosmic Rays
Detailed study of rarest,
largest cosmic ray showers: Auger
Dark Matter
Quantum Geometry
Measure fidelity of space-time with Planck sensitivity: Holometer
Theoretical Astrophysics
Inner space/outer space, seeding new experiments
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B. Dilday
SDSS-II Supernova Survey
500 spectroscopically confirmed SNe Ia, >1000 with
host redshifts from SDSS-III
Dark Energy Survey
DECam on the Blanco 4m
telescope at Cerro Tololo
• Stage III Dark Energy project
• Two imaging surveys:
5000 deg2 galaxy survey
30 deg2 Supernova survey
• 570-megapixel camera
built at Fermilab
5-year Survey starts this
September
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www.darkenergysurvey.org
darkenergydetectives.org
DECam First Light
September 12, 2012
Covered in 258 publications in 36 countries, plus Jay Leno’s monologue
DECam image
of Orion
DECam
1x1 deg
grizY image
of SPT cluster
z=0.32
~50,000 galaxies
in this image
First DES Supernovae
Nov.15,
7, 2012
Dec.
Fermilab Dark Matter Program
• CDMS
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New results from CDMS II Silicon detectors, with 3 WIMP candidate events
Running 9 kg of advanced iZIP Ge detectors at Soudan
Proposing 200 kg payload for SNOLAB
Best demonstrated control of backgrounds for WIMP searches
• COUPP
– Running both 2.5 kg and 60 kg bubble chambers at SNOLAB
– Proposing 500 kg bubble chamber for next generation
– Leading the field in spin-dependent WIMP sensitivity
• DarkSide
– 50 kg Liquid Argon TPC just becoming operational at Gran Sasso
– Ton-scale experiment planned for next generation
– Excellent high-mass WIMP reach
• DAMIC
– CCDs as light WIMP detectors (1-10 GeV mass range)
– Prototype running at SNOLAB with path towards scaling up
The Fermilab Direct Detection Suite
CDMS (cryogenic Ge)
DarkSide (LAr TPC)
COUPP (Bubble Chamber)
DAMIC (CCDs)
The race to detect WIMPs
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DAMA
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NO
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The new frontier of low-mass
WIMPS; 3 candidate events from
CDMS (allowed contours in blue)
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DAMA
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N1
NO
XE
WIMP nucleon cross section cm2
CDMS is leapfrogging with Xenon for the lead
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in spin-independent interactions
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EDE
LWE
ISS
CD
LT
MS
II G
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WIMP Mass GeV c2
CRE
SST
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WIMP nucleon cross section pb
COUPP is leading for spin-dependent
Quantum Geometry
Laboratory experiments address new fundamental
physics far beyond the TeV scale
Fermilab Holometer will probe fidelity of space-time
with Planck sensitivity
Dual, correlated 40-meter Michelson interferometers
now under construction, first science results expected
next year
Future experiments may explore new interactions of
axion-like particles, dark sector photons, or other BSM
effects
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Ben Brubaker bolting the holometer vacuum system together
GammeV: Shining light through walls
 Novel re-use of Tevatron magnets and associated infrastructure
 World’s best laboratory limit on axion-photon coupling, PRL
2008
 Broadband limits on chameleon-photon coupling, PRL 2009, 2010
Fermilab Technical Division
Magnet Test Facility
PMT sees
regenerated
photons
Laser
Photon blocker
inside a spare
Tevatron magnet.
Only axions
can
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pass through.
Pier’s Cosmic Future?
• History shows that Fermilab Directorship is
excellent training for 2nd career on the
Cosmic Frontier:
– Michael Witherell: Dark Matter Detection
– John Peoples: Dark Energy (DES)
– Leon Lederman: Astrophysics groupie
Sonoma vineyard
21-cm radio telescope to measure BAO