| dc.contributor |
Tayloe, Rex |
|
| dc.creator |
Zettlemoyer, Jacob C. |
|
| dc.date |
2020-05-12T16:11:55Z |
|
| dc.date |
2020-05-12T16:11:55Z |
|
| dc.date |
2020-05 |
|
| dc.date.accessioned |
2023-02-24T18:26:02Z |
|
| dc.date.available |
2023-02-24T18:26:02Z |
|
| dc.identifier |
http://hdl.handle.net/2022/25448 |
|
| dc.identifier |
10.5967/3wza-6w73 |
|
| dc.identifier.uri |
http://localhost:8080/xmlui/handle/CUHPOERS/260252 |
|
| dc.description |
Thesis (Ph.D.) - Indiana University, Department of Physics, 2020 |
|
| dc.description |
Coherent elastic neutrino-nucleus scattering (CEvNS) was first proposed in 1974 but eluded
detection for 40 years. The COHERENT collaboration made the first observation of CEvNS at the
Oak Ridge National Laboratory Spallation Neutron Source (SNS) with a 14.6 kg CsI[Na] detector.
One of the physics goals of the COHERENT experiment is to test the square of the neutron number
dependence of the CEvNS cross section predicted in the Standard Model by observing CEvNS in
multiple nuclei. To that end, the ~24 kg CENNS-10 liquid argon detector was deployed at the
low-background Neutrino Alley at the SNS in early 2017. The detector was upgraded to allow for
sensitivity to CEvNS in mid-2017. We analyzed 1.5 years of data taken after this upgrade to provide
the first detection of CEvNS on an argon nucleus at > 3$\sigma$ significance. The measured CEvNS cross
section of (2.3$\pm$0.7) x 10$^{39}$cm$^2$, averaged over the incident neutrino flux, is consistent with the
Standard Model prediction. This result represents a detection of CEvNS on the lightest nuclei
so far and improves bounds on beyond-the-standard-model physics in the form of non-standard
neutrino interactions. |
|
| dc.language |
en |
|
| dc.publisher |
[Bloomington, Ind.] : Indiana University |
|
| dc.subject |
neutrino physics |
|
| dc.subject |
CEvNS |
|
| dc.subject |
liquid argon |
|
| dc.subject |
COHERENT |
|
| dc.subject |
first detection |
|
| dc.subject |
coherent elastic neutrino-nucleus scattering |
|
| dc.title |
FIRST DETECTION OF COHERENT ELASTIC NEUTRINO-NUCLEUS SCATTERING ON AN ARGON TARGET |
|
| dc.type |
Doctoral Dissertation |
|