| dc.contributor.advisor | Samuel C.C. Ting. | en_US |
| dc.contributor.author | Krafczyk, Matthew Scott | en_US |
| dc.contributor.other | Massachusetts Institute of Technology. Department of Physics. | en_US |
| dc.date.accessioned | 2017-02-22T19:00:50Z | |
| dc.date.available | 2017-02-22T19:00:50Z | |
| dc.date.copyright | 2016 | en_US |
| dc.date.issued | 2016 | en_US |
| dc.identifier.uri | http://hdl.handle.net/1721.1/107043 | |
| dc.description | Thesis: Ph. D., Massachusetts Institute of Technology, Department of Physics, 2016. | en_US |
| dc.description | Cataloged from PDF version of thesis. | en_US |
| dc.description | Includes bibliographical references (pages 118-128). | en_US |
| dc.description.abstract | AMS-02 is a precision particle physics experiment in space aiming to study dark matter, antimatter, and properties of cosmic rays to the TeV energy scale. This thesis presents a study of the cosmic ray positron fraction in AMS-02 data covering an energy range of 0.5 GeV to 500 GeV, and identifies 10.3 x 106 electron and 650 x 101 positron events. The results show that the positron fraction increases with energy and reaches a maximum at 275 ± 32 GeV. | en_US |
| dc.description.statementofresponsibility | by Matthew Scott Krafczyk. | en_US |
| dc.format.extent | 128 pages | en_US |
| dc.language.iso | eng | en_US |
| dc.publisher | Massachusetts Institute of Technology | en_US |
| dc.rights | MIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission. | en_US |
| dc.rights.uri | http://dspace.mit.edu/handle/1721.1/7582 | en_US |
| dc.subject | Physics. | en_US |
| dc.title | A precision measurement of the cosmic ray positron fraction on the International Space Station | en_US |
| dc.type | Thesis | en_US |
| dc.description.degree | Ph. D. | en_US |
| dc.contributor.department | Massachusetts Institute of Technology. Department of Physics | |
| dc.identifier.oclc | 970813142 | en_US |
