"cosmic rays; models of hadron-hadron interactions; cosmic rays composition"@en . . "Studium parametr\u016F atmosf\u00E9rick\u00FDch spr\u0161ek citliv\u00FDch na slo\u017Een\u00ED kosmick\u00E9ho z\u00E1\u0159en\u00ED"@cs . . . "30"^^ . "30"^^ . "Behavior of cosmic ray showers is dependent on the type of extremely energetic primary particle. The aim is to study shower parameters sensitive to cosmic ray composition. Position of shower maximum is one of such parameters and it can be directly measured by fluorescence detectors. Another parameter so called risetime is measurable by surface detector systems. Measured shower characteristics are compared with predictions of models describing shower development and high energy hadron-hadron interactions. The aim is to define the influence of the uncertainties in hadron-hadron interaction models at high energies on the process of determination of cosmic ray composition and to use the results to understand data from Pierre Auger Observatory."@en . "2009-01-01+01:00"^^ . . . "0"^^ . "1"^^ . "\"Vlastnosti spr\u0161ek kosmick\u00E9ho z\u00E1\u0159en\u00ED jsou z\u00E1visl\u00E9 na typu prim\u00E1rn\u00ED \u010D\u00E1stice. C\u00EDlem je studovat m\u011B\u0159iteln\u00E9 parametry spr\u0161ek, ze kter\u00FDch se d\u00E1 usuzovat na slo\u017Een\u00ED prim\u00E1rn\u00EDho kosmick\u00E9ho z\u00E1\u0159en\u00ED o extr\u00E9mn\u00EDch energi\u00EDch. Mezi takov\u00E9 charakteristiky pat\u0159\u00ED nap\u0159. m\u00EDsto maxima spr\u0161ky m\u011B\u0159iteln\u00E9 ve fluorescen\u010Dn\u00EDch detektorech pop\u0159\u00EDpad\u011B tzv. parametr \"\"risetime\"\", kter\u00FD se d\u00E1 ur\u010Dit v detektorech pozemn\u00EDch. M\u011B\u0159en\u00E9 parametry se porovn\u00E1vaj\u00ED s p\u0159edpov\u011B\u010Fmi model\u016F popisuj\u00EDc\u00EDch spr\u0161ku i interakci hadron\u016F b\u011Bhem jej\u00EDho v\u00FDvoje. Snahou bude stanovit vliv nejistot uvnit\u0159 model\u016F j\u00E1dro jadern\u00FDch interakc\u00ED na proces stanoven\u00ED slo\u017Een\u00ED kosmick\u00E9ho z\u00E1\u0159en\u00ED a aplikovat v\u00FDsledky studie na data z observato\u0159e Pierra Augera.\""@cs . "2011-12-31+01:00"^^ . "1452"^^ . "1452"^^ . "Study of parameters of atmospheric showers sensitive to mass composition of cosmic rays"@en . . . . . . "0"^^ .