Details

Autor(en) / Beteiligte

• Gorham, P W
• Allison, P
• Barwick, S W
• Beatty, J J
• Besson, D Z
• Binns, W R
• Chen, C
• Chen, P
• Clem, J M
• Connolly, A
• Dowkontt, P F
• Duvernois, M A
• Field, R C
• Goldstein, D
• Goodhue, A
• Hast, C
• Hebert, C L
• Hoover, S
• Israel, M H
• Kowalski, J
• Learned, J G
• Liewer, K M
• Link, J T
• Lusczek, E
• Matsuno, S
• Mercurio, B C
• Miki, C
• Miocinović, P
• Nam, J
• Naudet, C J
• Ng, J
• Nichol, R J
• Palladino, K
• Reil, K
• Romero-Wolf, A
• Rosen, M
• Ruckman, L
• Saltzberg, D
• Seckel, D
• Varner, G S
• Walz, D
• Wang, Y
• Wu, F

Titel

New limits on the ultrahigh energy cosmic neutrino flux from the ANITA experiment

Ist Teil von

• Physical review letters, 2009-07, Vol.103 (5), p.051103-051103, Article 051103

Ort / Verlag

United States

Erscheinungsjahr

2009

Quelle

American Physical Society [PROLA]

Beschreibungen/Notizen

• We report initial results of the first flight of the Antarctic Impulsive Transient Antenna (ANITA-1) 2006-2007 Long Duration Balloon flight, which searched for evidence of a diffuse flux of cosmic neutrinos above energies of E(nu) approximately 3 x 10(18) eV. ANITA-1 flew for 35 days looking for radio impulses due to the Askaryan effect in neutrino-induced electromagnetic showers within the Antarctic ice sheets. We report here on our initial analysis, which was performed as a blind search of the data. No neutrino candidates are seen, with no detected physics background. We set model-independent limits based on this result. Upper limits derived from our analysis rule out the highest cosmogenic neutrino models. In a background horizontal-polarization channel, we also detect six events consistent with radio impulses from ultrahigh energy extensive air showers.