1. XinMin Zhang, Charling Tao: conveners
FCPPL14 – Cosmology
XinMin Zhang, Charling Tao: conveners
FCPPL sino-french projects 2014 in cosmology
- SNFactory: SNIa diversity
- Qubic: CMB B polarization (cf JC Hamilton, Li Hong and Zhao GB’s talks)
Underground physics : DM detection
Does not cover all sino-french projects in cosmology!

2. AST3 projects in Dome A/Dome C?
1st AST3 in Dome A
1st step of KDUST (2/4/…m) ambitious cosmology programme (WL, Transients, etc…)
2nd AST3 now under test in North China (Mohe). Could be installed in Dome C (Italo French station)
Qubic in Dome C

3. Ф500mm AST3 Telescope by Nanjing NIAOT

4. Qubic- China People and institutes (student names not yet included)
- IHEP: Xia JQ (lead), Li Hong, Zhang XM
(theory, data analysis)
- NIAOT: Wang GM + ? (Mount design and construction)
- Tsinghua: Sun Lei ) + CT(?)
(simulations, survey strategy, data analysis
- USTC: Zhao W. (Analysis)
- ITP: Huang QG, Guo ZW +? (Theory)
Total mount cost = 1 M US Dollars
to be shared by 5-6 institutes (funding requests in 2014)

5. QUBIC mount preliminary requirements
(from Jean-Christophe Hamilton)
Size: outside dimension
1770mm,left height
1320mm,right height
2140mm width
Instrument: cylinder
weight ~1t, diameter m
height m

6. Driving system considering for QUBIC mount
Similar to AST3 telescope
Dual-motor gear drive system with backlash remove control.
AC servo permanent magnetic synchronization motor will be used to drive the axes.
Multi-pole resolver to feedback the axis position.
Electronics device will be heated above - 10℃ with active heating unit.

7. Why QUBIC? Bicep2 result: Large (or small field) inflation?
Planck result
tensor/scalar
r < 0.1
Eg, Xia JQ and Zhang XM, Physics Letters B 660 (2008) 287–292

8. Qubic and inflation models

9. 2 s Tension BICEP2/Planck
Already many papers on arxiv
Nice talk from Li Hong
extensions of the power-law LCDM (primordial power spectrum ) by extra parameters, such as w, N_eff, M_nu, alpha_s, n_t, Omegak
can alleviate tension
Global fitting analysis on Cosmological models after BICEP2

10. Tension with Planck upper limitvs
BICEP2 collaboration
Planck collaboration
Li, Xia & Zhang
Both data fitting are performed
with power-law LCDM,
What happens beyond LCDM ??

11. Global analysis with BICEP2 + Planck + SN +BAO

12. Multi-probe global analysis 
One of the first sino-french/ FCPPL collaborations in cosmology CPPM-IHEP
(2005-…)
World recognition for global fitting

13. Dark Matter - Gilles Gerbier: personal DM roadmap
GG/I. Giomataris: Sphere for DM/n/neutrino
Yang Litao: CDEX Ge detector in CJPL
Yue Qian: CJPL status and extension
Daniel Santos: MIMAC directional Wimp detection
Jose Busto: Radon removal
underground labs
gaseous detectors

32. MIMAC

40. Measurement of quenching factor!!

43. Conclusions Many activities in cosmology
2 axis for FCPPL cooperation in next years
 CMB B Polarization: Qubic at Dome C
 DM underground detection
==> Sphere: neutron/DM/neutrino
==> Directional DM detector MIMAC ?
Near future?

44. QUBIC mount preliminary requirements
(from Jean-Christophe Hamilton)
Azimith axis: rotation range +/-180°
~20°scans at a constant elevation at 20°/s in a few minutes
Elevation axis: observing range 45°- 65° (min 30°for calibration)
Optical axis: rotation angle +/-30°
Absolute pointing accuracy: 20″RMS
Working temperature: -85℃
Power consumption: less than 1kw

45. Structure considering
for QUBIC mount
Pipe structure will be used to decrease the weight which will be helpful for transportation to the South Pole site.
Structure will be analysed using FEM method to ensure its stiffness to support the ~1 metric ton instrument stably.
Thermal factor will be considered carefully to ensure the structure have a perfect performance in the Antarctic low temperature, especially the bearing base.
Bearing, gear, motor, reducer, resolver, and other important items will be developed and tested specially.