Scalar Interaction Limits from the $\beta-\nu$ Correlation of Trapped Radioactive Atoms
| Pub type: | Article |
| Citation: | gorelov:PRL94-2005 |
| Status: | Published |
| Journal: | Phys. Rev. Lett. |
| Volume: | 94 |
| Year: | 2005 |
| Month: | Apr |
| Pages: | 142501 |
| Publisher: | American Physical Society |
| URL: | http://link.aps.org/doi/10.110... |
| DOI: | 10.1103/physrevlett.94.142501 |
| Abstract: | We have set limits on contributions of scalar interactions to nuclear β decay. A magneto-optical trap provides a localized source of atoms suspended in space, so the low-energy recoiling nuclei can freely escape and be detected in coincidence with the β. This allows reconstruction of the neutrino momentum, and the measurement of the β−ν correlation, in a more direct fashion than previously possible. The β−ν correlation parameter of the 0+→0+ pure Fermi decay of Km38 is a˜=0.9981±0.0030+0.0032−0.0037, consistent with the standard model prediction a˜=1. |
| Month_val: | 4 |
| Userfields: | issue={14}, numpages={4}, collaboration = {TRINAT} |
| Authors: | |
| Added by: | [DGM] |
| Total mark: | 0 |
| | |
|
Notes
|
|
|
|
|
|
Topics
|
|
|
|
