Physicists get closer than ever to measuring the elusive neutrino

  • 📰 SPACEdotcom
  • ⏱ Reading Time:
  • 62 sec. here
  • 3 min. at publisher
  • 📊 Quality Score:
  • News: 28%
  • Publisher: 67%

Education Education Headlines News

Education Education Latest News,Education Education Headlines

Paul M. Sutter is an astrophysicist at SUNY Stony Brook and the Flatiron Institute in New York City. Paul received his PhD in Physics from the University of Illinois at Urbana-Champaign in 2011, and spent three years at the Paris Institute of Astrophysics, followed by a research fellowship in Trieste, Italy, His research focuses on many diverse topics, from the emptiest regions of the universe to the earliest moments of the Big Bang to the hunt for the first stars. As an 'Agent to the Stars,' Paul has passionately engaged the public in science outreach for several years. He is the host of the popular 'Ask a Spaceman!' podcast, author of 'Your Place in the Universe' and 'How to Die in Space' and he frequently appears on TV — including on The Weather Channel, for which he serves as Official Space Specialist.

Neutrinos are perhaps the most troublesome of all the known particles in physics. In the Standard Model of particle physics, the gold-standard explanation for how nature works at a fundamental level, neutrinos shouldn't have any mass at all. That's because of the particle's introverted attitude toward the rest of its quantum realm. Other particles, like electrons, get their masses through interaction with a quantum field created by the Higgs boson particle.

In order to oscillate between flavors, neutrinos need mass. And it turns out that, like flavors, there are three different neutrino masses. For the oscillation to work the three masses must be greater than zero, and all different. That way, the three masses travel at different speeds, and the flavors oscillate depending on the quantum state of the three masses. If the masses were all zero, neutrinos would travel at the speed of light and wouldn't have a chance to oscillate.

To date, physicists do not know the masses of the three neutrinos. They only have limits provided by various experiments on the total combined neutrino mass and some of the differences in masses between different ones.Nailing down the mass of any of the neutrino species would be a big help in particle physics, because we don't know how they have mass. There are lots of theoretical models out there, but we don't know which is correct. A known mass could help this effort.

In Germany, the Karlsruhe Institute of Technology's KATRIN device is designed to do exactly that. The device features an absurdly large amount of tritium and a gigantic, 200-ton spectrometer, which measures the energy of electrons.

 

Thank you for your comment. Your comment will be published after being reviewed.
Please try again later.

Hope oneday I can measure neutrinos that go through my body in thousands every minute, just to see what they do to me :)

😍😍

Ow One went right through me

I think neutrinos can't be measured in experiments without knowing how they get there. They have a strong electromagnetic field with more than one variable and different properties. One of my ideas is to measure their kinetic energy, which can vary from very high to very low.

We have summarized this news so that you can read it quickly. If you are interested in the news, you can read the full text here. Read more:

 /  🏆 92. in EDUCATİON

Education Education Latest News, Education Education Headlines