The Fluorescence Detector (FD) of the Pierre Auger Observatory has a large exposure to search for upward-going showers. Constraints have been recently obtained by using 14 years of FD data searching for upward-going showers in the zenith angle range [110◦, 180◦]. In this work, we translate these bounds to upper limits of a possible flux of ultra high energy tau-leptons escaping from the Earth into the atmosphere. Such a mechanism could explain the observation of "anomalous pulses" made by ANITA, that indicated the existence of upward-going air showers with energies above 1017 eV. As tau neutrinos would be absorbed within the Earth at the deduced angles and energies, a flux of upward-going taus could only be resulted from an unknown type of ultra high energy Beyond Standard Model particle penetrating the Earth with little attenuation, and then creating tau-leptons through interactions within a maximum depth of about 50 km before exiting. We test classes of such models in a generic way and determine upper flux limits of ultra high energy BSM particles as a function of their unknown cross section with matter.

Constraints on BSM particles from the absence of upward-going air showers in the Pierre Auger Observatory / Yue, B., Abdul Halim, A., Abreu, P., Aglietta, M., Allekotte, I., Almeida Cheminant, K., Almela, A., Aloisio, R., Alvarez-Muniz, J., Ammerman Yebra, J., Anastasi, G.A., Anchordoqui, L., Andrada, B., Andringa, S., Aramo, C., Araujo Ferreira, P.R., Arnone, E., Arteaga Velazquez, J.C., Asorey, H., Assis, P., et al.. - In: POS PROCEEDINGS OF SCIENCE. - ISSN 1824-8039. - 444:(2024), pp. 1-13. (38th International cosmic ray conference, ICRC 2023 Nagoya, Japan ) [10.22323/1.444.1095].

Constraints on BSM particles from the absence of upward-going air showers in the Pierre Auger Observatory

Mastrodicasa M.;
2024

Abstract

The Fluorescence Detector (FD) of the Pierre Auger Observatory has a large exposure to search for upward-going showers. Constraints have been recently obtained by using 14 years of FD data searching for upward-going showers in the zenith angle range [110◦, 180◦]. In this work, we translate these bounds to upper limits of a possible flux of ultra high energy tau-leptons escaping from the Earth into the atmosphere. Such a mechanism could explain the observation of "anomalous pulses" made by ANITA, that indicated the existence of upward-going air showers with energies above 1017 eV. As tau neutrinos would be absorbed within the Earth at the deduced angles and energies, a flux of upward-going taus could only be resulted from an unknown type of ultra high energy Beyond Standard Model particle penetrating the Earth with little attenuation, and then creating tau-leptons through interactions within a maximum depth of about 50 km before exiting. We test classes of such models in a generic way and determine upper flux limits of ultra high energy BSM particles as a function of their unknown cross section with matter.
2024
38th International cosmic ray conference, ICRC 2023
pierre auger observatory; upward-going showers; bsm
04 Pubblicazione in atti di convegno::04c Atto di convegno in rivista
Constraints on BSM particles from the absence of upward-going air showers in the Pierre Auger Observatory / Yue, B., Abdul Halim, A., Abreu, P., Aglietta, M., Allekotte, I., Almeida Cheminant, K., Almela, A., Aloisio, R., Alvarez-Muniz, J., Ammerman Yebra, J., Anastasi, G.A., Anchordoqui, L., Andrada, B., Andringa, S., Aramo, C., Araujo Ferreira, P.R., Arnone, E., Arteaga Velazquez, J.C., Asorey, H., Assis, P., et al.. - In: POS PROCEEDINGS OF SCIENCE. - ISSN 1824-8039. - 444:(2024), pp. 1-13. (38th International cosmic ray conference, ICRC 2023 Nagoya, Japan ) [10.22323/1.444.1095].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1752618
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