BEGIN:VCALENDAR VERSION:2.0 PRODID:-//linuxsoftware.nz//NONSGML Joyous v1.4//EN BEGIN:VEVENT SUMMARY:Exploring the electromagnetic shower profile to enhance the Pierre Auger Observatory physics capabilities DTSTART:20251127T090000Z DTEND:20251127T110000Z DTSTAMP:20260903T075739Z UID:13e8d42d-5a5d-4b55-931a-8480b73d4be3 SEQUENCE:2 CREATED:20251124T090336Z DESCRIPTION:This work investigates two complementary strategies to enhance the physics capabilities of the Pierre Auger Observatory. The first exami nes the identification of vertical neutrino-induced air showers using the electromagnetic and muonic surface signals\, Sem and Sμ. Simulations of p roton and neutrino primaries using CORSIKA and the Auger Offline framework indicate that Xmax should not be directly included\, as its information i s largely encoded in Sem and Sμ. Additionally\, it was shown that muon ne utrino-induced showers can also be detected using the above Sem - Sμ meth odology\, offering a meaningful improvement in differential neutrino flux limits.In the second part of this thesis\, it is investigated the techniqu e of radio interferometry as a method for reconstructing the electromagnet ic longitudinal profile of extensive air showers. Using ZHAireS simulation s\, it was shown that there is a strong link between the EM profile shape and the one reconstructed from radio simulations. Significant differences in the longitudinal shape parameters\, R e L\, were observed between avera ged showers of different primary compositions\, demonstrating the techniqu e’s potential for primary composition studies at full duty-cycle.These r esults highlight the complementary impact of surface signal analysis and r adio interferometry\, while muon neutrinos can enhance neutrino detection limits\, RIT provides an independent\, high-precision method to access sho wer development\, offering a promising avenue for improving ultra-high-ene rgy cosmic-ray and neutrino observations. LAST-MODIFIED:20251124T090344Z LOCATION:Online URL:http://df.vps.tecnico.ulisboa.pt/pt/eventos/exploring-the-electromagne tic-shower-profile-to-enhance-the-pierre-auger-observatory-physics-capabil ities/ X-ALT-DESC;FMTTYPE=text/html:

This work investiga tes two complementary strategies to enhance the physics capabilities of th e Pierre Auger Observatory. The first examines the identification of verti cal neutrino-induced air showers using the electromagnetic and muonic surf ace signals\, Sem and Sμ. Simulations of proton and neutrin o primaries using CORSIKA and the Auger Offline framework indicate that Xmax should not be directly included\, as its information is largely encoded in Sem and Sμ. Additionally\, it was shown that muo n neutrino-induced showers can also be detected using the above Sem - Sμ methodology\, offering a meaningful improvement in different ial neutrino flux limits.

In the se cond part of this thesis\, it is investigated the technique of radio inter ferometry as a method for reconstructing the electromagnetic longitudinal profile of extensive air showers. Using ZHAireS simulations\, it was shown that there is a strong link between the EM profile shape and the one reco nstructed from radio simulations. Significant differences in the longitudi nal shape parameters\, R e L\, were observed between average d showers of different primary compositions\, demonstrating the technique ’s potential for primary composition studies at full duty-cycle.

These results highlight the complementary impact of surface signal analysis and radio interferometry\, while muon ne utrinos can enhance neutrino detection limits\, RIT provides an independen t\, high-precision method to access shower development\, offering a promis ing avenue for improving ultra-high-energy cosmic-ray and neutrino observa tions.

END:VEVENT END:VCALENDAR