INVESTIGADORES
MARIAZZI Analisa Gabriela
artículos
Título:
Testing Hadronic Interactions at Ultrahigh Energies with Air Showers Measured by the Pierre Auger Observatory
Autor/es:
AAB, A.; ABREU, P.; AGLIETTA, M.; AHN, E.J.; AL SAMARAI, I.; ALBUQUERQUE, I.F.M.; ALLEKOTTE, I.; ALLEN, J.D.; ALLISON, P.; ALMELA, A.; ALVAREZ CASTILLO, J.; ALVAREZ-MUÑIZ, J.; AMBROSIO, M.; ANASTASI, G.A.; ANCHORDOQUI, L.; ANDRADA, B.; ANDRINGA, S.; ARAMO, C.; ARQUEROS, F.; ARSENE, N.; ASOREY, H.; ASSIS, P.; AUBLIN, J.; AVILA, G.; BADESCU, A.M.; BAUS, C.; BEATTY, J.J.; BECKER, K.H.; BELLIDO, J.A.; BERAT, C.; BERTAINA, M.E.; BERTOU, X.; BIERMANN, P.L.; BILLOIR, P.; BITEAU, J.; BLAESS, S.G.; BLANCO, A.; BLAZEK, J.; BLEVE, C.; BLÜMER, H.; BOHÁ?OVÁ, M.; BONCIOLI, D.; BONIFAZI, C.; BORODAI, N.; BOTTI, A.M.; BRACK, J.; BRANCUS, I.; BRETZ, T.; BRIDGEMAN, A.; BRIECHLE, F.L.; BUCHHOLZ, P.; BUENO, A.; BUITINK, S.; BUSCEMI, M.; CABALLERO-MORA, K.S.; CACCIANIGA, B.; CACCIANIGA, L.; CANCIO, A.; CANFORA, F.; CARAMETE, L.; CARUSO, R.; CASTELLINA, A.; CATALDI, G.; CAZON, L.; CESTER, R.; CHAVEZ, A.G.; CHIAVASSA, A.; CHINELLATO, J.A.; CHIRINOS DIAZ, J.C.; CHUDOBA, J.; CLAY, R.W.; COLALILLO, R.; COLEMAN, A.; COLLICA, L.; COLUCC
Revista:
PHYSICAL REVIEW LETTERS
Editorial:
AMER PHYSICAL SOC
Referencias:
Lugar: New York; Año: 2016 vol. 117
ISSN:
0031-9007
Resumen:
Ultrahigh energy cosmic ray air showers probe particle physics at energies beyond the reach of accelerators. Here we introduce a new method to test hadronic interaction models without relying on the absolute energy calibration, and apply it to events with primary energy 6-16 EeV (ECM=110-170 TeV), whose longitudinal development and lateral distribution were simultaneously measured by the Pierre Auger Observatory. The average hadronic shower is 1.33±0.16 (1.61±0.21) times larger than predicted using the leading LHC-tuned models EPOS-LHC (QGSJetII-04), with a corresponding excess of muons.