New physics from ultrahigh energy cosmic rays
Observations of cosmic rays with energies above ~ 4 x 10^{10} GeV have inspired several speculative suggestions concerning their origin. The crucial question is whether or not the spectrum exhibits the expected `GZK cutoff' at this energy -- concerning which there are presently contradictory re...
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| Format: | Journal article |
| Language: | English |
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2003
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| _version_ | 1797052689209622528 |
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| author | Sarkar, S |
| author_facet | Sarkar, S |
| author_sort | Sarkar, S |
| collection | OXFORD |
| description | Observations of cosmic rays with energies above ~ 4 x 10^{10} GeV have inspired several speculative suggestions concerning their origin. The crucial question is whether or not the spectrum exhibits the expected `GZK cutoff' at this energy -- concerning which there are presently contradictory results. If there is indeed a cutoff, then the sources are cosmologically distant and rather exotic in nature. If there is no cutoff then new physics is required. |
| first_indexed | 2024-03-06T18:34:38Z |
| format | Journal article |
| id | oxford-uuid:0acd81c5-ff10-46d7-b94c-613be931f6c9 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:34:38Z |
| publishDate | 2003 |
| record_format | dspace |
| spelling | oxford-uuid:0acd81c5-ff10-46d7-b94c-613be931f6c92022-03-26T09:25:57ZNew physics from ultrahigh energy cosmic raysJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:0acd81c5-ff10-46d7-b94c-613be931f6c9EnglishSymplectic Elements at Oxford2003Sarkar, SObservations of cosmic rays with energies above ~ 4 x 10^{10} GeV have inspired several speculative suggestions concerning their origin. The crucial question is whether or not the spectrum exhibits the expected `GZK cutoff' at this energy -- concerning which there are presently contradictory results. If there is indeed a cutoff, then the sources are cosmologically distant and rather exotic in nature. If there is no cutoff then new physics is required. |
| spellingShingle | Sarkar, S New physics from ultrahigh energy cosmic rays |
| title | New physics from ultrahigh energy cosmic rays |
| title_full | New physics from ultrahigh energy cosmic rays |
| title_fullStr | New physics from ultrahigh energy cosmic rays |
| title_full_unstemmed | New physics from ultrahigh energy cosmic rays |
| title_short | New physics from ultrahigh energy cosmic rays |
| title_sort | new physics from ultrahigh energy cosmic rays |
| work_keys_str_mv | AT sarkars newphysicsfromultrahighenergycosmicrays |