Events Calendar
A Dark Baryon Explanation of The Neutron Decay Anomaly
Friday September 3, 2021
| 3:30 pm
Tweet |
Presenter: | Benjamin Grinstein, UCSD |
|---|---|---|
| Series: | Physics and Astronomy Colloquium | |
| Abstract: | In this talk I will first review a long-standing discrepancy between the neutron lifetime as measured in beam and in bottle experiments. If this discrepancy is not due to a systematic error, it may be due to novel mechanisms for neutron transmutation into new, as yet unknown elementary particles. These particles would be electrically neutral, or "dark". We will explain several scenarios for the possibility of neutron transmutation into dark particles. For example, in one interesting scenario the products of the neutron transmutation include a monochromatic photon with energy in the range 0.782 MeV - 1.664 MeV and this is predicted to occur in 1% of all neutron decays. We will describe recent theoretical developments as well as ongoing and planned experiments looking directly to establish or rule out the "dark decay" hypothesis. | |
| Web Site: | https:/ / youtu.be/ P4ci-UGEwcw | |
| Host: | Kevin Cahill | |
| Location: | Zoom | |
If you need an auxiliary aid or service to attend any Department of Physics and Astronomy event, please contact the department (phone: 505 277-2616; email: