The only way to detect a sterile neutrino is to catch it in the act of transforming into one of the other types. “Sterile means it doesn’t interact with matter itself, although it can dramatically interfere with the way conventional neutrinos do.” “If you throw in a fourth neutrino, it changes everything,” explains Francis Halzen, a University of Wisconsin-Madison professor of physics and principal investigator for the IceCube Neutrino Observatory, a massive detector embedded deep in the ice beneath the South Pole. Known as the “sterile neutrino,” the hypothesized particle would not interact at all with matter except, possibly, through gravity.ĭiscovering the sterile neutrino would also throw a wrench into the Standard Model, which allows for only the three known types of neutrino. Hints of a possible fourth type of neutrino have come from several experiments. There are three known types of neutrinos: muon, electron and tau. Trillions of neutrinos will course through your body in the time it takes to read this sentence. Neutrinos are ghostly particles with almost no mass and only rarely interact with matter. Ultimately, such a particle could also help resolve the mystery of the origin of dark matter and the matter/antimatter asymmetry in the universe. If discovered, the sterile neutrino would have added to the neutrino family portrait and helped explain a number of puzzles that suggest the existence of more than the three known flavors of neutrinos. It does not store any personal data.If sterile neutrinos exist, IceCube would measure a disappearance of atmospheric neutrinos that would otherwise reach the detector on a trajectory through the Earth’s core. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. British Columbia, Canada) praised the excellent results of ANTARESįor the search of WIMPS in the direction of the Galactic Center, which show that ANTARES has the best sensitivity for Which triggered the discovery of a X-ray source by Swift). Franckowiack (DESY, Germany) on Multi-MessengerĪstronomy, the same day, insisted on several ANTARES analyses (for example, the ANTARES neutrino ANT150109A, The final sensitivity presented is very close to the cosmic flux measured by IceCube.ĪNTARES results on diffuse fluxes were presented in the rapporteur’s talk on the “experimental outlook” by M. Kouchner presented the unblinded results of the search for diffuseįluxes of cosmic neutrinos with data up to December 2015, both in the track and cascade channels (see figure below). Results from the ANTARES neutrino telescope and highlighted the capabilities of the KM3NeT/ARCAĭetector for neutrino astronomy. On Monday, July 4th, in the session about neutrino astronomy, Antoine Kouchner (AstroParticle &Ĭosmology Laboratory, Paris, France) presented the latest Physicists at the 27th International Conference on Neutrino Physics and Astrophysics, Neutrino Last week, from July 4th to July 9th, ANTARES physicists have participated in the biannual get together of neutrino
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