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Elusives-InvisiblesPlus Outreach

  • 16/05/2018
    The observed antineutrino flux from nuclear reactors is consistently lower than predicted. This anomaly could hint at oscillations of active neutrinos into a new sterile neutrino species, or it could simply be a reflection of underestimated systematic uncertainties in the theoretical flux prediction. We review the status of both hypothesis in view of recent developments. In particular, we scrutinize recent Daya Bay results, which aim to determine whether the deficit depends on the isotope from which neutrinos are produced (as would be likely if the problem is with the flux prediction), or is independent thereof (as would be expected if the sterile neutrino hypothesis is true). We also comment on new short-baseline data, and we discuss reactor data in the context of a global fit. Please see document attached.
  • 20/04/2018
    Rachel Houtz recently wrote an article for El País. She explains for the general public how a recent precision measurement of the fine-structure constant restricts dark photon parameters space. The article appeared on the El País website on April 18, 2018.
  • 19/04/2018
    The ESRs spoke at Hamamatsu Photonics on April 18, 2018

Paper of the month

  • New observations of the ultra-diffuse galaxy NGC1052-DF2, published in Nature by van Dokkum et al., seem to show that it contains an unusually low amount of dark matter, perhaps barely any at all. This conclusion was reached after independently...
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Do you think we are close to discovering dark matter?
Yes, the hints from four experiments clearly point to dark matter.
7%
No, not with all the inconsistent results of dark matter experiments.
36%
Maybe, in 10-20 years from now with more data.
57%
Total votes: 14
  • Did you know the majority of particles also have a corresponding antiparticle?

    Many concepts in the world come with their opposite: good and bad, black and white, up and down, etc. This is true fo...