Physics panel to feds: Beam us up some neutrinos
by Seth Borenstein, AP Science Writer
May 22, 2014 02:20 PM | 350 views | 0 0 comments | 4 4 recommendations | email to a friend | print
This undated handout graphic provided by Fermilab in Chicago shows a proposed particle physics project that would shoot an invisible beam of neutrinos from Fermilab in Chicago to an old mine in South Dakota where a detector would look for it. The U.S. should build a billion-dollar project to beam ghostlike neutrinos 800 miles underground from Chicago to South Dakota in the hopes of understanding the plentiful but enigmatic fundamental particle that zips right through us and changes its nature at will, a panel of experts told the federal government. (AP Photo/Fermilab)
This undated handout graphic provided by Fermilab in Chicago shows a proposed particle physics project that would shoot an invisible beam of neutrinos from Fermilab in Chicago to an old mine in South Dakota where a detector would look for it. The U.S. should build a billion-dollar project to beam ghostlike neutrinos 800 miles underground from Chicago to South Dakota in the hopes of understanding the plentiful but enigmatic fundamental particle that zips right through us and changes its nature at will, a panel of experts told the federal government. (AP Photo/Fermilab)
slideshow
WASHINGTON (AP) — The U.S. should build a billion-dollar project to beam ghostlike subatomic particles 800 miles underground from Chicago to South Dakota, a committee of experts told the federal government Thursday.

That would help scientists learn about these puzzling particles, called neutrinos, which zip right through us.

The proposed invisible neutrino beam would be the biggest U.S. particle physics projects in many years, said panel chairman Steven Ritz of the University of California, Santa Cruz. Still, it would be much smaller than Europe's Large Hadron Collider, which found the critical Higgs boson.

The neutrino beam was one of the top big-money projects the scientific panel suggested in a list of priorities for federal particle physics research. Other big projects included improvement of the European collider and the creation of a Japanese subatomic particle smasher.

If approved and funded, the neutrino beam would take about 10 years to build and could run for another 20 years, experts said.

"What CERN (the European collider operator) did for the Higgs boson, we want to do with the neutrino," said Joe Lykken, a particle theorist at Fermi National Accelerator Lab in Chicago. That lab would create the beam and aim it at an old mine in Lead, South Dakota. There, scientists hope a 50,000-ton detector would be able to spot an incredibly minute fraction of the particles.

Tiny and nearly mass-less, neutrinos are everywhere. About 100 trillion zip through us harmlessly each second. They were created by the Big Bang. They also form in the sun and our own bodies, but they are so fast and small that scientists have barely detected them for study.

"Of the known particles, the neutrinos as a group are the most oddball," Ritz said.

Neutrinos are a group because they come in three types, or "flavors," and they can shift from one type to another. Scientists don't quite know why, Lykken said.

If a neutrino is eventually beamed from Chicago, "it starts out as a chocolate milkshake, but it's partly strawberry by the time it gets to South Dakota," Lykken said.

He added, "You study the oddball in order to get insights into everything else."

Neutrinos could give scientists clues about the mysterious "dark matter" of outer space and other "weird astrophysical phenomena," said California Institute of Technology physicist Sean Carroll, who wasn't part of the scientific panel.

___

Online

The physics panel report: http://usparticlephysics.org/p5/

Fermi National Acceleratory Lab: http://www.fnal.gov/

___

Seth Borenstein can be followed at http://twitter.com/borenbears



Copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.



Comments
(0)
Comments-icon Post a Comment
No Comments Yet
*We welcome your comments on the stories and issues of the day and seek to provide a forum for the community to voice opinions. All comments are subject to moderator approval before being made visible on the website but are not edited. The use of profanity, obscene and vulgar language, hate speech, and racial slurs is strictly prohibited. Advertisements, promotions, spam, and links to outside websites will also be rejected. Please read our terms of service for full guides