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DTSTART;TZID=America/Los_Angeles:20170519T120000
DTEND;TZID=America/Los_Angeles:20170519T130000
DTSTAMP:20260527T224347
CREATED:20170303T221941Z
LAST-MODIFIED:20170512T203955Z
UID:182-1495195200-1495198800@inpa.lbl.gov
SUMMARY:Jon Ouellet (MIT) - ABRACADABRA: A New Approach to the Search for Axion Dark Matter
DESCRIPTION:The evidence for the existence of Dark Matter is well supported by\nmany cosmological observations. But we have not yet been able to\ndetermine how this new type of matter fits into our understanding of\nthe Universe on the smallest scales. Separately\, long standing\nproblems within the Standard Model point to new weakly interacting\nparticles to help explain away unnatural fine-tunings. The axion was\noriginally proposed to explain the Strong-CP problem\, but was\nsubsequently shown to be a strong candidate for explaining the Dark\nMatter abundance of the Universe.  ABRACADABRA is a proposed\nexperiment to search for ultralight axion Dark Matter\, with a focus on\nthe mass range $10^{-14} \lesssim m_a \lesssim 10^{-6}$\\,eV. We search\nfor these axions and other axion like particles (ALPs) through a\nmodification to Maxwell’s equations\, which cause strong magnetic\nfields to source weak oscillating electrical currents parallel to the\nfield. These weak currents can be detected through the magnetic fields\nthat they generate. To see these\, ABRACADABRA will use highly\nsensitive SQUID magnetometers in a very low noise environment. At\nMIT\, we are building a 10\\,cm scale prototype that will quickly be\nsensitive to untested regions of parameter space. In the long term\, we\nhope to scale ABRACADABRA to a 1\\,m$^3$ scale detector\, which could be\nsensitive enough to probe the QCD axion scale.
URL:https://inpa.lbl.gov/event/jon-ouellet-mit-abracadabra/
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