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1.
Measurements of Xmax above 10[sup]17 eV with the fluorescence detector of the Pierre Auger Observatory
Marko Zavrtanik, Danilo Zavrtanik, Lili Yang, Serguei Vorobiov, Darko Veberič, Marta Trini, Samo Stanič, Ahmed Saleh, Gašper Kukec Mezek, Andrej Filipčič, Alessio Porcelli, 2015, objavljeni znanstveni prispevek na konferenci

Opis: For the first time the Pierre Auger Collaboration presents〈Xmax〉and σ(Xmax) measurements covering nearly three decades of energy. In this analysis we include new Xmax data obtained with the High Elevation Auger Telescopes (HEAT) enhancement. The HEAT telescopes cover a field of view ranging from 30◦ to 60◦ of elevation and are located next to one of the standard fluorescence detector sites (Coihueco). The combination of the HEAT and Coihueco telescopes covers a field of view from ∼2◦ up to ∼60◦ of elevation. Thus, the combination can sample the longitudinal profile of nearby lower energy showers, allowing us to extend the energy range down to 10[sup]17 eV.
Najdeno v: ključnih besedah
Povzetek najdenega: ...elevation. Thus, the combination can sample the longitudinal profile of nearby lower energy showers, allowing... ...extensive atmospheric showers, longitudinal shower profile, depth of the shower maximum, Pierre Auger...
Ključne besede: extensive atmospheric showers, longitudinal shower profile, depth of the shower maximum, Pierre Auger Observatory
Objavljeno: 03.03.2016; Ogledov: 1790; Prenosov: 123
.pdf Polno besedilo (718,30 KB)

2.
Measurement of the average electromagnetic longitudinal shower profile at the Pierre Auger Observatory
Marko Zavrtanik, Danilo Zavrtanik, Lili Yang, Serguei Vorobiov, Darko Veberič, Marta Trini, Samo Stanič, Ahmed Saleh, Gašper Kukec Mezek, Andrej Filipčič, Francisco Diogo, 2015, objavljeni znanstveni prispevek na konferenci

Opis: In addition to the standard Xmax and energy, the longitudinal profiles of extensive air showers contain some more interesting information. For energies above 10[sup]17.8 eV, we present the average profiles as a function of atmospheric depth measured for the first time at the Pierre Auger Observatory. The profile shapes for different energy ranges are all well reproduced by a Gaisser-Hillas function within the range studied. A detailed analysis of the systematic uncertainties is performed using data and a full detector simulation, and the results are compared with predictions of hadronic interaction models for different primaries.
Najdeno v: ključnih besedah
Ključne besede: Pierre Auger Observatory, extensive air showers, longitudinal shower profile, Gaisser-Hillas finction
Objavljeno: 03.03.2016; Ogledov: 1225; Prenosov: 85
.pdf Polno besedilo (684,20 KB)

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