A method to reconstruct the muon lateral distribution with an array of segmented counters with time resolution
Despite the significant experimental effort made in the last decades, the origin of the ultra high energy cosmic rays is still unknown. The chemical composition of these energetic particles car- ries key astrophysical information to identify where they come from. It is well known that the muon conte...
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| Formato: | CONF |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_18248039_v30-July-2015_n_p_Ravignani |
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todo:paper_18248039_v30-July-2015_n_p_Ravignani2023-10-03T16:33:07Z A method to reconstruct the muon lateral distribution with an array of segmented counters with time resolution Ravignani, D. Supanitsky, A.D. Melo, D. Wundheiler, B. Despite the significant experimental effort made in the last decades, the origin of the ultra high energy cosmic rays is still unknown. The chemical composition of these energetic particles car- ries key astrophysical information to identify where they come from. It is well known that the muon content of the showers generated by the interaction of the cosmic rays with air molecules, is very sensitive to the primary particle type. Therefore, the measurement of the number of muons at ground level is an essential tool to infer the cosmic ray mass composition. We introduce a novel method to reconstruct the lateral distribution of muons with an array of counters buried under- ground like AMIGA, one of the Pierre Auger Observatory detector systems. The reconstruction builds on a previous method we recently presented by considering the detector time resolution. With the new method more events can be reconstructed than with the previous one. In addition the statistical uncertainty of the measured number of muons is reduced, allowing for a better primary mass discrimination. CONF info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_18248039_v30-July-2015_n_p_Ravignani |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
Despite the significant experimental effort made in the last decades, the origin of the ultra high energy cosmic rays is still unknown. The chemical composition of these energetic particles car- ries key astrophysical information to identify where they come from. It is well known that the muon content of the showers generated by the interaction of the cosmic rays with air molecules, is very sensitive to the primary particle type. Therefore, the measurement of the number of muons at ground level is an essential tool to infer the cosmic ray mass composition. We introduce a novel method to reconstruct the lateral distribution of muons with an array of counters buried under- ground like AMIGA, one of the Pierre Auger Observatory detector systems. The reconstruction builds on a previous method we recently presented by considering the detector time resolution. With the new method more events can be reconstructed than with the previous one. In addition the statistical uncertainty of the measured number of muons is reduced, allowing for a better primary mass discrimination. |
| format |
CONF |
| author |
Ravignani, D. Supanitsky, A.D. Melo, D. Wundheiler, B. |
| spellingShingle |
Ravignani, D. Supanitsky, A.D. Melo, D. Wundheiler, B. A method to reconstruct the muon lateral distribution with an array of segmented counters with time resolution |
| author_facet |
Ravignani, D. Supanitsky, A.D. Melo, D. Wundheiler, B. |
| author_sort |
Ravignani, D. |
| title |
A method to reconstruct the muon lateral distribution with an array of segmented counters with time resolution |
| title_short |
A method to reconstruct the muon lateral distribution with an array of segmented counters with time resolution |
| title_full |
A method to reconstruct the muon lateral distribution with an array of segmented counters with time resolution |
| title_fullStr |
A method to reconstruct the muon lateral distribution with an array of segmented counters with time resolution |
| title_full_unstemmed |
A method to reconstruct the muon lateral distribution with an array of segmented counters with time resolution |
| title_sort |
method to reconstruct the muon lateral distribution with an array of segmented counters with time resolution |
| url |
http://hdl.handle.net/20.500.12110/paper_18248039_v30-July-2015_n_p_Ravignani |
| work_keys_str_mv |
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