Constraints on the ultra-high energy cosmic neutrino flux from the fourth flight of ANITA
| العنوان: | Constraints on the ultra-high energy cosmic neutrino flux from the fourth flight of ANITA |
|---|---|
| المؤلفون: | J. J. Beatty, A. Romero-Wolf, Berkeley Hill, J. M. Clem, R. Hupe, P. Cao, J. W. H. Gordon, J. W. Russell, K. M. Liewer, C. Hast, Jiwoo Nam, J. J. Huang, B. Dailey, K. Hughes, W. R. Binns, S. Y. Hsu, Eric Oberla, S. Prohira, G. S. Varner, N. Wang, S. Matsuno, D. Z. Besson, Andrew Ludwig, J. Roberts, O. Banerjee, J. Stockham, Harm Schoorlemmer, Abigail G. Vieregg, R. J. Nichol, Tsung-Che Liu, D. Seckel, B. Rotter, Chun Hsiung Chen, Charles J. Naudet, David Saltzberg, Cosmin Deaconu, L. Batten, M. S. Sutherland, Luca Macchiarulo, P. F. Dowkontt, C. Miki, J. Shiao, Brian Rauch, S. H. Wang, Amy Connolly, Pisin Chen, Stephanie Wissel, Patrick Allison, B. D. Fox, M. Stockham, Jakub Ripa, K. McBride, Peter Gorham, Yang-Fang Chen, Konstantin Belov, Katharine Mulrey, V. Bugaev, Alexander Novikov, S. Stafford, M. H. Israel, L. Cremonesi, B. Strutt |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Physics, High Energy Astrophysical Phenomena (astro-ph.HE), COSMIC cancer database, 010308 nuclear & particles physics, Flux, FOS: Physical sciences, Astrophysics, 01 natural sciences, 13. Climate action, 0103 physical sciences, Polar, Ultrahigh energy, Neutrino, Antenna (radio), 010306 general physics, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, Event (particle physics), Instrumentation and Methods for Astrophysics (astro-ph.IM), Radio wave |
| الوصف: | The ANtarctic Impulsive Transient Antenna (ANITA) NASA long-duration balloon payload completed its fourth flight in December 2016, after 28 days of flight time. ANITA is sensitive to impulsive broadband radio emission from interactions of ultra-high-energy neutrinos in polar ice (Askaryan emission). We present the results of two separate blind analyses searching for signals from Askaryan emission in the data from the fourth flight of ANITA. The more sensitive analysis, with a better expected limit, has a background estimate of $0.64^{+0.69}_{-0.45}$ and an analysis efficiency of $82\pm2\%$. The second analysis has a background estimate of $0.34^{+0.66}_{-0.16}$ and an analysis efficiency of $71\pm6\%$. Each analysis found one event in the signal region, consistent with the background estimate for each analysis. The resulting limit further tightens the constraints on the diffuse flux of ultra-high-energy neutrinos at energies above $10^{19.5}$ eV. 11 pages, 7 figures |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1c029013d38b7b08196e73f4ffa12ff http://arxiv.org/abs/1902.04005 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....c1c029013d38b7b08196e73f4ffa12ff |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |