2026-06-28T20:22:43Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/447232023-08-26T09:21:37Zcom_20.500.14352_14col_20.500.14352_15

Measurement of the proton-air cross section at root s=57 TeV with the Pierre Auger Observatory Arganda, E. Arqueros Martínez, Fernando Blanco Ramos, Francisco García Pinto, Diego Ortiz Ramis, Montserrat Rosado Vélez, Jaime Vázquez Peñas, José Ramón We report a measurement of the proton-air cross section for particle production at the center-of-mass energy per nucleon of 57 TeV. This is derived from the distribution of the depths of shower maxima observed with the Pierre Auger Observatory: systematic uncertainties are studied in detail. Analyzing the tail of the distribution of the shower maxima, a proton-air cross section of [505 +/- 22(stat)(-36)(+28)(syst)] mb is found. 2023-06-20T03:57:27Z 2023-06-20T03:57:27Z 2023-06-20T03:57:27Z 2012-08-10 journal article https://hdl.handle.net/20.500.14352/44723 0031-9007 10.1103/PhysRevLett.109.062002 eng PIEF-GA-2008 (220240) AV0Z10100502 AV0Z10100522 KJB100100904 LA08016 LC527 1M06002 MEB111003 MSM0021620859 IN2P3/CNRS PNC-IN2P3/CNRS N N202 200239 N N202 207238 MEIF-CT-2005-025057 open access American Physical Society