20.500.12556/RUL-164667 Improving composition of ultrahigh energy cosmic rays with ground detector data We show that the maximum shower depth (X$_{max}$) distributions of ultrahigh energy cosmic rays (UHECRs), as measured by fluorescence telescopes, can be augmented by building a mapping to observables collected by surface detectors. The resulting statistical improvement of such an augmented dataset depends in a universal way on the strength of the correlation exhibited by the mapping. Building upon the publicly available data on “golden hybrid” events from the Pierre Auger Observatory, we project possible improvements in the inferred composition of UHECRs for a range of possible mappings with varying correlation strengths. ultrahigh energy cosmic rays fluorescence telescopes surface detectors cosmic ray composition cosmic ray spectra data analysis statistical physics thermodynamics gravitation cosmology astrophysics kozmični žarki energija korelacije true false true Angleški jezik Slovenski jezik Članek v reviji 2024-11-06 16:23:30 2024-11-06 16:23:33 2024-11-22 14:55:17 0000-00-00 00:00:00 2024 0 0 7 str. iss. 4, art. 043023 Vol. 109 Feb. 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 53 2470-0029 10.1103/PhysRevD.109.043023 185647619 PhysRevD.109.043023_(1).pdf PhysRevD.109.043023_(1).pdf 1 F87354587EC0DBE1CCB232A5358B0D4E 7674e8adc7701e97385df82f4584a988f8bd123f8a930420285d592d61f7c7d9 1981c862-9c53-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=195271 https://journals.aps.org/prd/abstract/10.1103/PhysRevD.109.043023 1 bf7f7ed3-9c52-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=195270 Fakulteta za matematiko in fiziko 0 0 0