Phys. Rev. Lett. 103, 191301 (2009) [4 pages]

Improved Flux Limits for Neutrinos with Energies above 10²² eV from Observations with the Westerbork Synthesis Radio Telescope

Abstract

References

Citing Articles (15)

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O. Scholten¹, S. Buitink^2,3, J. Bacelar⁴, R. Braun⁵, A. G. de Bruyn^6,7, H. Falcke², K. Singh¹, B. Stappers⁸, R. G. Strom^7,9, and R. al Yahyaoui¹
¹Kernfysisch Versneller Instituut, University of Groningen, 9747 AA, Groningen, The Netherlands
²Department of Astrophysics, IMAPP, Radboud University, 6500 GL Nijmegen, The Netherlands
³Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
⁴ASML Netherlands BV, P.O. Box 324, 5500 AH Veldhoven, The Netherlands
⁵CSIRO-ATNF, P.O. Box 76, Epping NSW 1710, Australia
⁶Kapteyn Institute, University of Groningen, 9747 AA, Groningen, The Netherlands
⁷ASTRON, 7990 AA Dwingeloo, The Netherlands
⁸Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, United Kingdom
⁹Astronomical Institute “A. Pannekoek,” University of Amsterdam, 1098 SJ Amsterdam, The Netherlands

Received 4 July 2009; revised 25 October 2009; published 6 November 2009

Particle cascades initiated by ultrahigh energy neutrinos in the lunar regolith will emit an electromagnetic pulse with a time duration of the order of nanoseconds through a process known as the Askaryan effect. It has been shown that in an observing window around 150 MHz there is a maximum chance for detecting this radiation with radio telescopes commonly used in astronomy. In 50 h of observation time with the Westerbork Synthesis Radio Telescope array we have set a new limit on the flux of neutrinos, summed over all flavors, with energies in excess of 4×10²² eV.

URL:

http://link.aps.org/doi/10.1103/PhysRevLett.103.191301

DOI:

10.1103/PhysRevLett.103.191301

PACS:

95.35.+d, 95.85.Bh, 98.70.Sa

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Phys. Rev. Lett. 103, 191301 (2009) [4 pages]

Improved Flux Limits for Neutrinos with Energies above 1022 eV from Observations with the Westerbork Synthesis Radio Telescope

Improved Flux Limits for Neutrinos with Energies above 10²² eV from Observations with the Westerbork Synthesis Radio Telescope