Measurement of the depth of maximum of extensive air showers above 1018eV
We describe the measurement of the depth of maximum, Xmax, of the longitudinal development of air showers induced by cosmic rays. Almost 4000 events above 1018eV observed by the fluorescence detector of the Pierre Auger Observatory in coincidence with at least one surface detector station are select...
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2010
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v104_n9_p_Multitudinario http://hdl.handle.net/20.500.12110/paper_00319007_v104_n9_p_Multitudinario |
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paper:paper_00319007_v104_n9_p_Multitudinario2023-06-08T14:57:53Z Measurement of the depth of maximum of extensive air showers above 1018eV Cosmic ray measurement Cosmology Fluorescence Air showers Extensive air showers Fluorescence detector Mass composition Pierre Auger observatory Surface detectors Cosmic rays We describe the measurement of the depth of maximum, Xmax, of the longitudinal development of air showers induced by cosmic rays. Almost 4000 events above 1018eV observed by the fluorescence detector of the Pierre Auger Observatory in coincidence with at least one surface detector station are selected for the analysis. The average shower maximum was found to evolve with energy at a rate of (106-21+35)g/cm2/decade below 1018.24 ± 0. 05eV, and (24±3)g/cm2/decade above this energy. The measured shower-to-shower fluctuations decrease from about 55 to 26g/cm2. The interpretation of these results in terms of the cosmic ray mass composition is briefly discussed. © 2010 The American Physical Society. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v104_n9_p_Multitudinario http://hdl.handle.net/20.500.12110/paper_00319007_v104_n9_p_Multitudinario |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Cosmic ray measurement Cosmology Fluorescence Air showers Extensive air showers Fluorescence detector Mass composition Pierre Auger observatory Surface detectors Cosmic rays |
| spellingShingle |
Cosmic ray measurement Cosmology Fluorescence Air showers Extensive air showers Fluorescence detector Mass composition Pierre Auger observatory Surface detectors Cosmic rays Measurement of the depth of maximum of extensive air showers above 1018eV |
| topic_facet |
Cosmic ray measurement Cosmology Fluorescence Air showers Extensive air showers Fluorescence detector Mass composition Pierre Auger observatory Surface detectors Cosmic rays |
| description |
We describe the measurement of the depth of maximum, Xmax, of the longitudinal development of air showers induced by cosmic rays. Almost 4000 events above 1018eV observed by the fluorescence detector of the Pierre Auger Observatory in coincidence with at least one surface detector station are selected for the analysis. The average shower maximum was found to evolve with energy at a rate of (106-21+35)g/cm2/decade below 1018.24 ± 0. 05eV, and (24±3)g/cm2/decade above this energy. The measured shower-to-shower fluctuations decrease from about 55 to 26g/cm2. The interpretation of these results in terms of the cosmic ray mass composition is briefly discussed. © 2010 The American Physical Society. |
| title |
Measurement of the depth of maximum of extensive air showers above 1018eV |
| title_short |
Measurement of the depth of maximum of extensive air showers above 1018eV |
| title_full |
Measurement of the depth of maximum of extensive air showers above 1018eV |
| title_fullStr |
Measurement of the depth of maximum of extensive air showers above 1018eV |
| title_full_unstemmed |
Measurement of the depth of maximum of extensive air showers above 1018eV |
| title_sort |
measurement of the depth of maximum of extensive air showers above 1018ev |
| publishDate |
2010 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v104_n9_p_Multitudinario http://hdl.handle.net/20.500.12110/paper_00319007_v104_n9_p_Multitudinario |
| _version_ |
1768543981582417920 |