| Monday 13 January 2025 | |
| Events for day: Monday 13 September 2021 |
| 11:00 - 12:00 Journal Club: Experiment & Phenomenology - google meet Effect on Cosmic Microwave Background Polarization of Coupling of Quintessence to Pseudoscalar Formed from the Electromagnetic Field and its Dual School PARTICLES AND ACCELERATORS Abstract: We present the full set of power spectra of cosmic microwave background (CMB) temperature and polarization anisotropies due to the coupling between quintessence and pseudoscalar of electromagnetism. This coupling induces a rotation of the polarization plane of the CMB, thus resulting in a nonvanishing B mode and parity-violating TB and EB modes. Using the BOOMERANG data from the flight of 2003, we derive the most stringent constraint on the coupling strength. We find that in some cases the rotation induced B mode can confuse the hunting for the gravitational lensing-induced B mode. Based on http://dx.doi.org/10. ... |