| arXiv | Name | Symbol | Parsed | Bound |
|---|---|---|---|---|
| 0801.3928 🔍 (source) | contribution to the effective number of relativistic neutrino species | N ^ { eff } | 3.058 +1.971-1.178 |
|
| 0804.2971 🔍 (source) | mean value of the effective number of relativistic neutrino species | N _ { eff } | 3.256 +0.607-0.641 |
|
| 0807.0039 🔍 (source) | number of relativistic neutrino species | N _ { rel } | 4.1 +0.4-0.9 (^ +1.1 _ -1.5) |