Katsushi Arisaka UCLA 1 University of California Los Angeles Department of Physics and Astronomy arisakaphysicsuclaedu Dark Matter Programs at UCLA Katsushi Arisaka UCLA Dark Matter Programs ID: 443834
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Slide1
4/21/2011
Katsushi Arisaka, UCLA
1
University of California, Los AngelesDepartment of Physics and Astronomyarisaka@physics.ucla.edu
Dark Matter Programsat UCLA
Katsushi ArisakaSlide2
UCLA Dark Matter ProgramsDirect SearchDavid Cline, Katsushi Arisaka, Hanguo Wang Xe : ZEPLIN-II
XENON100 XENON 1Ton Ar : DarkSide50 DarkSide
5Ton G3 : MAX, XAXIndirect SearchRene Ong VERITAS GAPS
Vladimir Vassiliev VERITAS CTADavid Saltzberg
ANITATheoryGraciela Gelmini
DAMA/
CoGeNTAlex
Kusenko
Sterile Neutrino
4/21/2011
Katsushi Arisaka, UCLA
2Slide3
XENON100 Detector
4/21/2011Katsushi Arisaka, UCLA
3162 kg
(48 kg)Slide4
90% CL Limits of SI Cross Section4/21/2011Katsushi Arisaka, UCLA4100 days, 48 kg, 3 eventsSlide5
Photo Cathode
(-6 kV)
APD
(0 V)
Quartz
Quartz
Al coating
APD
(0 V)
Photo Cathode
(-6 kV)
QUPID
(
QU
artz
P
hoton
I
ntensifying
D
etector)
4/21/2011
5
Katsushi Arisaka, UCLA
Katsushi Arisaka,
Hanguo
WangSlide6
XENON1T4/21/2011Katsushi Arisaka, UCLA6Katsushi Arisaka, Hanguo WangSlide7
DarkSide 50 kg 5 Ton4/21/2011Katsushi Arisaka, UCLA7CTF Water Tank
LiquidScintillator3” QUPID(19 top + 19 bottom)Depleted Ar
(50 kg)Hanguo WangSlide8
90% CL Limits of SI Cross Section4/21/2011Katsushi Arisaka, UCLA8
G2
G3
G1Slide9
Indirect WIMP Detectionc
c?W+/Z/H/q
W-/Z/h/qWIMP Annihilation(e.g. GC)
g
VERITAS, HESS, Fermi …n
IceCube
Telescopes
e
-
ATIC, Fermi …
Cosmic Ray
Exptsp
e+HEAT, Pamela,AMSdGAPS
Pamela,
AMS
decreasing
background
Rene
Ong
, Vladimir
Vassiliev
4/21/2011
Katsushi Arisaka, UCLA
9Slide10
VERITAS12m reflector, f1.0 optics
350 Mirror Facets500 pixel Camera
Rene Ong, Vladimir Vassiliev 4/21/2011Slide11
Cherenkov Telescope ArrayVladimir Vassiliev 4/21/2011Katsushi Arisaka, UCLA11Slide12
GAPS ConceptGAPS consists of two detectors (acceptance ~2.7 m2sr):
Si(Li) Detector (target and tracker):Si(Li) tracker:13 layers of Si(Li) wafersrelatively low Z material
good X-ray resolution circular modules segmented into 8 strips 3D particle tracking270 per layer (total: ~3500)
timing: ~50 nsdual channel electronics5-200 keV: X-rays (resolution:~2
keV)0.1-200 MeV: charged particle
Time of flight and anticoincidence shield:
plastic
scintillator
with PMTs surrounds tracker
track charged particles,
dE
/dXvelocity measurementanticoincidence for charged particles
TOF
tracker
~3m
~4m
~4m
LD Balloon flight in 2015 ?
Rene
Ong
4/21/2011Slide13
Sterile Neutrinos4/21/2011Katsushi Arisaka, UCLA13Alex KusenkoSlide14
DAMA/LIBRA vs. XENON1004/21/2011Katsushi Arisaka, UCLA14Graciela GelminiSlide15
UCLA Dark Matter ProgramsDirect SearchDavid Cline, Katsushi Arisaka, Hanguo Wang Xe : ZEPLIN-II
XENON100 XENON 1Ton Ar : DarkSide50 DarkSide
5Ton G3 : MAX, XAXIndirect SearchRene Ong VERITAS GAPS
Vladimir Vassiliev VERITAS CTADavid Saltzberg
ANITATheoryGraciela Gelmini
DAMA/
CoGeNTAlex
Kusenko
Sterile Neutrino
4/21/2011
Katsushi Arisaka, UCLA
15