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Research @ KICP
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Research Highlight February 14, 2008 Dark Matter COUPP by Juan Collar ![]() In direct detection experiments in which an incoming WIMP bounces off of a nucleus in the detector, a WIMP can be characterized by its mass, its spin-independent couplings and its spin-dependent couplings. COUPP utilizes a superheated heavy liquid (CF<sub>3</sub>I) which is maximally sensitive to both spin-dependent and spin-independent interactions simultaneously. The current setup consists of a 2 kg prototype chamber, which is expected to produce improved limits on both couplings during 2008. A 20 kg chamber and 80 kg chamber are presently under construction. <a target='_blank' href=' http://collargroup.uchicago.edu'>KICP COUPP</a> members include Professor Juan Collar, KICP fellows Brian Odom and Andrew Sonnenschein; graduate students Dante Nakazawa and Matthew Szydagis; and undergraduate students William Bolte, Jason Hall, Kevin O'Sullivan, Aaron Plasek, Smriti Mishra, Julia Rasmussen, Aza Raskin, Hannes Schimmelpfennig, and Luke Goetzke. <i>Image: KICP graduate student Matthew Szydagis is standing in front of a camera array for a ''windowless'' COUPP bubble chamber, a new concept.</i> <b>COUPP article:</b> <a target='_blank' href='http://www.sciencemag.org/cgi/content/abstract/319/5865/933?maxtoshow=&HITS=10&hits=10&RESULTFORMAT=&fulltext=coupp&searchid=1&FIRSTINDEX=0&issue=5865&resourcetype=HWCIT'>Spin-Dependent WIMP Limits from a Bubble Chamber</a>, <i>E. Behnke, J. I. Collar, P. S. Cooper, K. Crum, M. Crisler, M. Hu, I. Levine, D. Nakazawa, H. Nguyen, B. Odom, E. Ramberg, J. Rasmussen, N. Riley, A. Sonnenschein, M. Szydagis, R. Tschirhart</i> , Science 15 February 2008, Vol. 319. no. 5865, pp. 933 - 936<br /><br /><a target='_blank' href='http://www.fnal.gov/pub/presspass/press_releases/COUPPdarkmattersearch.html'>Fermilab Press Release</a> <br /><a target='_blank' href='http://www-coupp.fnal.gov/'>COUPP Fermilab</a> Related Links: KICP Members: Juan I. Collar; Brian C. Odom; Andrew Sonnenschein KICP Students: William "Joe" Bolte; Luke Goetzke; Jason Hall; Smriti Mishra; Dante Nakazawa; Kevin O'Sullivan; Aza Raskin; Julia Rasmussen; Hannes Schimmelpfennig; Matthew Szydagis Scientific projects: COUPP/PICO |