Astronomy and Astrophysics – Astrophysics
Scientific paper
1999-07-31
Astronomy and Astrophysics
Astrophysics
16 pages, 9 figures. Corrected some typos
Scientific paper
10.1088/0954-3899/26/3/309
The influence of the geomagnetic field on the development of air showers is studied. The well known International Geomagnetic Reference Field was included in the AIRES air shower simulation program as an auxiliary tool to allow calculating very accurate estimations of the geomagnetic field given the geographic coordinates, altitude above sea level and date of a given event. Our simulations indicate that the geomagnetic deflections alter significantly some shower observables like, for example, the lateral distribution of muons in the case of events with large zenith angles (larger than 75 degrees). On the other hand, such alterations seem not to be important for smaller zenith angles. Global observables like total numbers of particles or longitudinal development parameters do not present appreciable dependences on the geomagnetic deflections for all the cases that were studied.
Cillis Analia
Sciutto Sergio J.
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