About
Axions were invented to solve the strong CP-problem and are one of the leading dark matter particle candidates. Axions could be copiously produced in the Sun. In magnetic fields they can oscillate to photons and vice versa. The axion helioscope CAST uses an LHC magnet to convert solar axions to X-rays. Also, in the solar atmosphere the large scale magnetic fields reach occasionally several kGauss. Assuming the CAST working principle occurring there much more efficiently, it could explain the unexpected appearance of X-rays (from axions) or disappearance of light (into axions). Such processes can be behind persisting solar mysteries, suggesting the participation of a) solar magnetic fields, and b) radiatively decaying massive particles. Enigmatic behaviour leading to solar X-ray emission, coronal heating, flares, sunspots, etc. is considered as evidence of overlooked signature of axions or other particles with similar properties. New solar axion searches in the lab and with space X-ray telescopes, have been motivated and are in progress..
0:00:00 Slide 1
0:03:15 Slide 2
0:06:30 Slide 3
0:13:00 Slide 4
0:19:30 Slide 5
0:26:00 Slide 6
0:32:30 Slide 7
0:39:00 Slide 8
0:45:30 Slide 9
0:52:00 Slide 10
0:58:30 Slide 11
The talk
Credits and licence
- Institution
- CERN
- Department
- TH Theoretical Seminar
- Speaker
- K. (University of Patras) Zioutas
- Year
- 2006
- Language
- English
- Source
- CERN
- Licence
- CERN, as CERN states it. CERN's terms
- Attribution
- © CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
- Who can watch
- CERN gives no rating. Invisible Network shows it to Teens profiles and older, judged from what the source says about it. How courses are placed