Cargando…
Progress on the BL2 beam measurement of the neutron lifetime
A precise value of the neutron lifetime is important in several areas of physics, including determinations of the quark-mixing matrix element │V(ud)│, related tests of the Standard Model, and predictions of light element abundances in Big Bang Nucleosynthesis models. We report the progress on a new...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
2019
|
| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9706643/ https://www.ncbi.nlm.nih.gov/pubmed/36452450 http://dx.doi.org/10.1051/epjconf/201921903002 |
| _version_ | 1784840549787762688 |
|---|---|
| author | Hoogerheide, Shannon F. Caylor, Jimmy Adamek, Evan R. Anderson, Eamon S. Biswas, Ripan Chavali, Sai Meghasena Crawford, Bret DeAngelis, Christina Dewey, Maynard S. Fomin, Nadia Gilliam, David M. Grammer, Kyle B. Greene, Geoffrey L. Haun, Robert W. Ivanov, Juliet A. Li, Fangchen Mulholland, Jonathan Mumm, H. Pieter Nico, Jeffrey S. Snow, William M. Valete, Daniel Wietfeldt, Fred E. Yue, Andrew T. |
| author_facet | Hoogerheide, Shannon F. Caylor, Jimmy Adamek, Evan R. Anderson, Eamon S. Biswas, Ripan Chavali, Sai Meghasena Crawford, Bret DeAngelis, Christina Dewey, Maynard S. Fomin, Nadia Gilliam, David M. Grammer, Kyle B. Greene, Geoffrey L. Haun, Robert W. Ivanov, Juliet A. Li, Fangchen Mulholland, Jonathan Mumm, H. Pieter Nico, Jeffrey S. Snow, William M. Valete, Daniel Wietfeldt, Fred E. Yue, Andrew T. |
| author_sort | Hoogerheide, Shannon F. |
| collection | PubMed |
| description | A precise value of the neutron lifetime is important in several areas of physics, including determinations of the quark-mixing matrix element │V(ud)│, related tests of the Standard Model, and predictions of light element abundances in Big Bang Nucleosynthesis models. We report the progress on a new measurement of the neutron lifetime utilizing the cold neutron beam technique. Several experimental improvements in both neutron and proton counting that have been developed over the last decade are presented. This new effort should yield a final uncertainty on the lifetime of 1 s with an improved understanding of the systematic effects. |
| format | Online Article Text |
| id | pubmed-9706643 |
| institution | National Center for Biotechnology Information |
| language | English |
| publishDate | 2019 |
| record_format | MEDLINE/PubMed |
| spelling | pubmed-97066432022-11-29 Progress on the BL2 beam measurement of the neutron lifetime Hoogerheide, Shannon F. Caylor, Jimmy Adamek, Evan R. Anderson, Eamon S. Biswas, Ripan Chavali, Sai Meghasena Crawford, Bret DeAngelis, Christina Dewey, Maynard S. Fomin, Nadia Gilliam, David M. Grammer, Kyle B. Greene, Geoffrey L. Haun, Robert W. Ivanov, Juliet A. Li, Fangchen Mulholland, Jonathan Mumm, H. Pieter Nico, Jeffrey S. Snow, William M. Valete, Daniel Wietfeldt, Fred E. Yue, Andrew T. EPJ Web Conf Article A precise value of the neutron lifetime is important in several areas of physics, including determinations of the quark-mixing matrix element │V(ud)│, related tests of the Standard Model, and predictions of light element abundances in Big Bang Nucleosynthesis models. We report the progress on a new measurement of the neutron lifetime utilizing the cold neutron beam technique. Several experimental improvements in both neutron and proton counting that have been developed over the last decade are presented. This new effort should yield a final uncertainty on the lifetime of 1 s with an improved understanding of the systematic effects. 2019 /pmc/articles/PMC9706643/ /pubmed/36452450 http://dx.doi.org/10.1051/epjconf/201921903002 Text en https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) ). |
| spellingShingle | Article Hoogerheide, Shannon F. Caylor, Jimmy Adamek, Evan R. Anderson, Eamon S. Biswas, Ripan Chavali, Sai Meghasena Crawford, Bret DeAngelis, Christina Dewey, Maynard S. Fomin, Nadia Gilliam, David M. Grammer, Kyle B. Greene, Geoffrey L. Haun, Robert W. Ivanov, Juliet A. Li, Fangchen Mulholland, Jonathan Mumm, H. Pieter Nico, Jeffrey S. Snow, William M. Valete, Daniel Wietfeldt, Fred E. Yue, Andrew T. Progress on the BL2 beam measurement of the neutron lifetime |
| title | Progress on the BL2 beam measurement of the neutron lifetime |
| title_full | Progress on the BL2 beam measurement of the neutron lifetime |
| title_fullStr | Progress on the BL2 beam measurement of the neutron lifetime |
| title_full_unstemmed | Progress on the BL2 beam measurement of the neutron lifetime |
| title_short | Progress on the BL2 beam measurement of the neutron lifetime |
| title_sort | progress on the bl2 beam measurement of the neutron lifetime |
| topic | Article |
| url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9706643/ https://www.ncbi.nlm.nih.gov/pubmed/36452450 http://dx.doi.org/10.1051/epjconf/201921903002 |
| work_keys_str_mv | AT hoogerheideshannonf progressonthebl2beammeasurementoftheneutronlifetime AT caylorjimmy progressonthebl2beammeasurementoftheneutronlifetime AT adamekevanr progressonthebl2beammeasurementoftheneutronlifetime AT andersoneamons progressonthebl2beammeasurementoftheneutronlifetime AT biswasripan progressonthebl2beammeasurementoftheneutronlifetime AT chavalisaimeghasena progressonthebl2beammeasurementoftheneutronlifetime AT crawfordbret progressonthebl2beammeasurementoftheneutronlifetime AT deangelischristina progressonthebl2beammeasurementoftheneutronlifetime AT deweymaynards progressonthebl2beammeasurementoftheneutronlifetime AT fominnadia progressonthebl2beammeasurementoftheneutronlifetime AT gilliamdavidm progressonthebl2beammeasurementoftheneutronlifetime AT grammerkyleb progressonthebl2beammeasurementoftheneutronlifetime AT greenegeoffreyl progressonthebl2beammeasurementoftheneutronlifetime AT haunrobertw progressonthebl2beammeasurementoftheneutronlifetime AT ivanovjulieta progressonthebl2beammeasurementoftheneutronlifetime AT lifangchen progressonthebl2beammeasurementoftheneutronlifetime AT mulhollandjonathan progressonthebl2beammeasurementoftheneutronlifetime AT mummhpieter progressonthebl2beammeasurementoftheneutronlifetime AT nicojeffreys progressonthebl2beammeasurementoftheneutronlifetime AT snowwilliamm progressonthebl2beammeasurementoftheneutronlifetime AT valetedaniel progressonthebl2beammeasurementoftheneutronlifetime AT wietfeldtfrede progressonthebl2beammeasurementoftheneutronlifetime AT yueandrewt progressonthebl2beammeasurementoftheneutronlifetime |