IceCube rules out last Standard Model explanation of ANITA’s anomalous neutrino events

IceCube isn’t the only neutrino experiment in Antarctica. There is also the ANITA (the ANtarctic Impulsive Transient Antenna) experiment, which flies a balloon over the continent and points radio antennae toward the ground in search of extremely high-energy neutrinos.

The IceCube Collaboration recently followed up on events detected by ANITA and presented their results in a paper submitted today to The Astrophysical Journal. The collaboration found that these neutrinos could not have come from an intense point source. Other explanations for the anomalous signals—possibly involving exotic physics—need to be considered. […]

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Week 49 at the Pole

Why are the winterovers playing chess out on the ice? The answer might just be a question itself—why not? Yes, it’s cold outside…but you just can’t let the weather get in your way. […]

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Get festive with these IceCube snowflake patterns

’Tis the season for snowflakes—made of ice or paper! Try one (or more) of our festive, IceCube-themed snowflake templates to decorate your space. Choose from a DOM, the IceCube Lab, penguins Rosie and Gibbs, or even our PI, Professor Francis Halzen. […]

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Week 48 at the Pole

Last week, long-awaited cargo arrived, and just as exciting, the South Pole traverse also showed up. The traverse travels overland to bring fuel to the Pole that would otherwise need to be flown in. […]

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Locally sourced neutrinos? IceCube takes a look

IceCube has not yet found neutrino sources within our galaxy, but there may be sources that are not too much farther out. To test this possibility, the IceCube Collaboration recently performed an analysis scouring the local universe for potential neutrino sources. They conducted two different searches that looked for correlations between neutrino emission and dense regions in a catalog of galaxies called the 2MASS Redshift Survey (2MRS). While they did not find significant sources, they were able to put constraints on neutrino emission from nearby galaxies, which they present in a paper recently submitted to the Journal of Cosmology and Astroparticle Physics. […]

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Week 46 at the Pole

Since it’s summer at the Pole, more people are arriving than leaving. However, last week two people departed who had been at the Pole for an extended time—yes, we’re talking about Benjamin Eberhardt and Kathrin Mallot, IceCube’s winterovers for the past year, shown here among the red parkas walking toward the plane above. […]

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