Dark Matter day is just around the corner

Categories: Cosmic Frontier
Published on: October 29, 2019
Check out the Dark Matter Day website for an event near you on Oct. 31.

Fermilab is celebrating Dark Matter Day with a Facebook Live event — underground! On Thursday, Oct. 31, at 10 a.m. CT, visit Fermilab’s Facebook page to hear our scientists chat about their exciting dark matter investigations from one of Fermilab’s underground experimental halls.

By the Interactions collaboration. You can read this press release at the Fermilab News site.

Our gothic universe

Categories: Physics in a Nutshell
Published on: January 29, 2017

An introduction to the concept of “dark energy.”

http://news.fnal.gov/2012/02/our-gothic-universe/, by Don Lincoln.

Dark matter: Are you serious?

Categories: Physics in a Nutshell
Published on: January 8, 2017

An introduction to why we believe that Dark Matter is a good solution to observations of galactic rotations.

http://news.fnal.gov/2012/01/dark-matter-are-you-serious/, Don Lincoln.

Dark matter search with bubble chambers

Categories: Cosmic Frontier
Published on: July 17, 2016

This is an electronic image of a typical microscopic quartz particulate found during the investigation of the active mass of the PICO-2L detector after its first run. The image was taken using an EDS-SEM (scanning electron microscopy with X-ray microanalysis). Such particulate contamination was thought to be the cause for the anomalous background, and a profound effort went into its elimination (and suppression of its production) for the follow up PICO-2L WIMP-search run.

Presented here is a description of the PICO experiment, which has achieved one of the world’s best exclusions for the detection of Weakly-Interacting Massive Particles (WIMPs): the leading candidate for the Dark Matter particle.

This podcast is a little longer than usual: 8 minutes, 45 seconds.

http://news.fnal.gov/2016/07/dark-matter-search-bubble-chambers/, by Chanpreet Amole: a Ph.D. candidate at Queen’s University in Canada.

Bringing dark matter to Earth

Categories: CMS/LHC, Energy Frontier
Published on: May 25, 2016

CMS scientists have defined a new set of variables, called “razor variables,” that are being used to search for dark matter in data recorded using the Large Hadron Collider.

http://news.fnal.gov/2016/04/bringing-dark-matter-earth/, by Don Lincoln.

The lightness of dark matter

Categories: Cosmic Frontier
Published on: October 4, 2015

The new CDMSlite result (black solid line with salmon-shaded band), compared with some other recent results on low-mass dark matter.

No WIMP signal is yet visible in the data from CDMS (Cold Dark Matter Survey, at Fermilab). But the experiment has considerably narrowed the region where light WIMPS might be hiding.

http://www.fnal.gov/pub/today/archive/archive_2015/today15-09-22.html, by Dan Bauer.

The hunt for dark matter turns to subhalos

Published on: July 16, 2015

Can we detect dark mater from cosmic gamma rays? Experiemnters in the Fermi Gamma-Ray Space Telescope collaboration think, “Maybe so!”

http://www.fnal.gov/pub/today/archive/archive_2015/today15-06-12.html, by Dan Hooper.

Reticulum II: Welcome to the neighborhood

Published on: April 20, 2015

We have a new galactic neighbor: Reticulum II. It has an unusually high amount of dark matter in it, according to Fermilab’s Dark Energy Survey (DES) and the Dark Energy Camera (DECam).

http://www.fnal.gov/pub/today/archive/archive_2015/today15-04-17.html, by Alex Drlica-Wagner

Seeing dark matter

Tags: ,
Published on: April 11, 2015

Seeing dark matter in old-fashioned bubble chambers. The PICO collaboration, of which Fermilab is a member (formed from the merger of PICASSO and COUPP).

http://www.fnal.gov/pub/today/archive/archive_2015/today15-04-03.html, by Alan Robinson, University of Chicago.

The Dark Energy Survey looks at massive galaxy clusters – and finds filaments

Published on: June 11, 2014

In the first paper based upon Dark Energy Survey data, scientists demonstrated that the new camera and revamped telescope worked together as expected.

http://www.fnal.gov/pub/today/archive/archive_2014/today14-05-30.html, by Peter Melchior, Ohio State University.

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