We measure the energy emitted by extensive air showers in the form of radio emission in the frequency range from 30 to 80 MHz. Exploiting the accurate energy scale of the Pierre Auger Observatory, we obtain a radiation energy of 15.8 +/- 0.7 (stat) +/- 6.7 (syst) MeV for cosmic rays with an energy of 1 EeV arriving perpendicularly to a geomagnetic field of 0.24 G, scaling quadratically with the cosmic-ray energy. A comparison with predictions from state-of-the-art first-principles calculations shows agreement with our measurement. The radiation energy provides direct access to the calorimetric energy in the

Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy / Aab, A., Abreu, P., Aglietta, M., Ahn, E.J., Al Samarai, I., Albuquerque, I.F.M., Allekotte, I., Allison, P., Almela, A., Alvarez Castillo, J., Alvarez Muñiz, J., Alves Batista, R., Ambrosio, M., Aminaei, A., Anastasi, G.A., Anchordoqui, L., Andringa, S., Aramo, C., Arqueros, F., Arsene, N., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 116:24(2016), p. 241101. [10.1103/PhysRevLett.116.241101]

Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy

COLALILLO, ROBERTA;GUARINO, FAUSTO;VALORE, LAURA;
2016

Abstract

We measure the energy emitted by extensive air showers in the form of radio emission in the frequency range from 30 to 80 MHz. Exploiting the accurate energy scale of the Pierre Auger Observatory, we obtain a radiation energy of 15.8 +/- 0.7 (stat) +/- 6.7 (syst) MeV for cosmic rays with an energy of 1 EeV arriving perpendicularly to a geomagnetic field of 0.24 G, scaling quadratically with the cosmic-ray energy. A comparison with predictions from state-of-the-art first-principles calculations shows agreement with our measurement. The radiation energy provides direct access to the calorimetric energy in the
2016
Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy / Aab, A., Abreu, P., Aglietta, M., Ahn, E.J., Al Samarai, I., Albuquerque, I.F.M., Allekotte, I., Allison, P., Almela, A., Alvarez Castillo, J., Alvarez Muñiz, J., Alves Batista, R., Ambrosio, M., Aminaei, A., Anastasi, G.A., Anchordoqui, L., Andringa, S., Aramo, C., Arqueros, F., Arsene, N., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 116:24(2016), p. 241101. [10.1103/PhysRevLett.116.241101]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/656150
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