Hinting at primary composition using asymmetries in time distributions
Evidence of azimuthal asymmetries in the time structure and signal size have been found in non-vertical showers at the Pierre Auger Observatory. It has been previously shown that the asymmetry in time distributions offers a new possibility for the determination of the mass composition. New studies h...
Guardado en:
| Autores principales: | , , , , |
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| Formato: | Objeto de conferencia |
| Lenguaje: | Inglés |
| Publicado: |
2005
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/81579 http://www.icrr.u-tokyo.ac.jp/can/icrc2005/Proceedings/Vol-17/17005-arg-dova-MT-abs1-he14-oral.pdf |
| Aporte de: |
| Sumario: | Evidence of azimuthal asymmetries in the time structure and signal size have been found in non-vertical showers at the Pierre Auger Observatory. It has been previously shown that the asymmetry in time distributions offers a new possibility for the determination of the mass composition. New studies have demonstrated that the dependence of the asymmetry parameter in the rise-time and fall-time distributions with <sub>sec</sub>θ shows a clear peak. Both, the position of the peak, X<sub>asymax</sub>, and the size of the asymmetry at X<sub>asymax</sub> are sensitive to primary mass composition and have a small dependence on energy. In this paper a study of the discriminating power of the new observables to separate primary species is presented. |
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