1. Directional Detection Rates of Dark Matter (WIMPs)
Debasish Majumdar‏
Saha Institute of Nuclear Physics
Kolkata

2. Rotation of galactic disc through the halo of Dark Matter causes the earth to experience an apparent wind of Dark Matter

3. Because of the earth’s annual revolution around the sun the WIMP flux encountered by the earth continually changes over the period of the year.

4. Variation due to diurnal rotation of earth

17. Detectors Chosen CF4 Detector NEWAGE at Kamioka Micro-TPC
CS2 Detector DRIFT Detector at Boulby mine Time Projection Chamber Able to reconstruct 3D track (Directionality of the track) 54 deg 33 min North 0 deg 49 min west
CF4 Detector
NEWAGE at Kamioka
Micro-TPC
CF4 with 152 Torr.
36 deg 25 min North
137 deg 18 min East

18. Daily (and annual) variations of rates

24. Ratio of rates in two directions

27. Thank you

28. Back ups