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The matter particles The ‘ Standard Model ’ The fundamental interactions Gravitationelectromagnetism weak nuclear force strong nuclear force = Cosmic.

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Presentation on theme: "The matter particles The ‘ Standard Model ’ The fundamental interactions Gravitationelectromagnetism weak nuclear force strong nuclear force = Cosmic."— Presentation transcript:

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3 The matter particles The ‘ Standard Model ’ The fundamental interactions Gravitationelectromagnetism weak nuclear force strong nuclear force = Cosmic DNA

4 Some particles have mass, some do not +10-1 W + Z 0 W - Mass 80.419 91.188 80.419 0 photon Mass 0 Wheredothemasses come from? Newton: Weight proportional to Mass Einstein: Energy related to Mass Neither explained origin of Mass Are masses due to Higgs boson? (yet another particle)

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14 Noise Sources in LIGO Ground motion couples into motion of mirrors Counting statistics of photons at photodiode Thermal excitations of mirror suspensions

15 10 -24 10 -23 10 -22 10 -21 10 -20 10 -19 10 -18 110100100010 4 h (Hz -1/2 ) Virgo LIGO Resonant antennas Hz GEO Core Collapse @ 10 Mpc BH-BH Merger Oscillations @ 100 Mpc Pulsars h max – 1 yr integration BH-BH Inspiral, z = 0.4 BH-BH Inspiral, 100 Mpc QNM from BH Collisions, 1000 - 100 Msun, z=1 NS,  =10 -6, 10 kpc QNM from BH Collisions, 100 - 10 Msun, 150 Mpc NS-NS Inspiral, 300 Mpc NS-NS Merger Oscillations @ 100 Mpc Credit: P.Rapagnani Design sensitivity

16 Measured sensitivity C7 NS/NS maximum distance ~ 1.5 Mpc (7 W) (0.7 W) Design NS/NS maximum distance ~ 30 Mpc

17 WMAP satellite At t = 400 000 yrs, the Universe becomes transparent: photons no longer interact with matter BIG BANG Cosmological background T = 3 K = - 270 °C Looking back to the primordial Universe

18 When do graviton decouple? Interaction rate  ~ G N 2 T 5 ~ ---- T5T5 M Pl 4 Expansion rateH ~ ---- ---- ~ ---- T2T2 T3T3 M Pl M Pl 3  H Gravitons decouple at the Planck era : fossile radiation (radiation dominated era)

19 Update Scores LCDM TeVeS- MOND Solar System ? ? Tides/vertical force Rot. curves HSB/LSB Lensing by Ellip/Clusters Hubble Expansion/CMB ???? Stay Tuned!

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22 OG 2.7: New Experiments Cherenkov Telescopes 4. HESS-II [Vincent] New 28m telescope. 2048 pixel camera. Lower energy 40-50 GeV. 5. MAGIC-II [Teshima] New 17m telescope. Possible high-QE camera. 2007 schedule. MAGIC-I MAGIC-II 85m

23 Future Concepts Large Cherenkov Tel. Arrays HE-ASTRO: 217 Telescopes (ø10m), 80m separation. 1.1 km 2 collection area & 15 o FOV ! Field of view [π sr] Field of view [deg] Collecting Area [km 2 ] Also, detailed work in Europe and Japan. Cherenkov Telescope Array (CTA) concept well underway.

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27 How to go deeper A future mission should: –Achieve BLIP –Observe longer (~2) ~2 for satellites John will discuss ground- based –Use many more pixels To go much deeper, we must use arrays.

28 The South Pole NSF

29 Natural WIMP candidate: SUSY LSP neutralino  Stable if SUSY exists and R- parity is conserved Direct detection: –WIMP scattering off nuclei gaugino fraction: PMTs PEEK Supports Cathode Grids Waveshifter/Reflector

30 Moore’s sensitivity law ? Rapid evolution of sensitivity of discriminating experiments (CDMS, EDELWEISS, CRESST, WARP, XENON…) But goals are still ≈3 orders of magnitude beyond present best performances (After Gaitskell)

31 Full Macho Halo:  LMC  0.45 10 -6  SMC  0.65 10 -6 Self lensing:  LMC-LMC  0.005 - 0.05 10 -6  SMC-SMC  0.04 10 -6 Lensing LMC-Galactic stars:  LMC-gal  0.01 10 -6 Lensing Galactic-Galactic stars:  gal-gal  2.0 10 -6 Events rate comparison : (  MACHO  0.12 10 -6 )

32 _3% at 10 -2 M  Final EROS combined limit (1990-2003) _7% at 0.4 M  _10% at 1 M  LMC data set / No event LMC + SMC data set with 1 SMC halo candidate Domain excluded from all EROS data ZOOM

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