کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5486724 1523336 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Final results of the PICASSO dark matter search experiment
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم نجوم و فیزیک نجومی
پیش نمایش صفحه اول مقاله
Final results of the PICASSO dark matter search experiment
چکیده انگلیسی
The PICASSO dark matter search experiment operated an array of 32 superheated droplet detectors containing 3.0  kg of C4F10 and collected an exposure of 231.4 kgd at SNOLAB between March 2012 and January 2014. We report on the final results of this experiment which includes for the first time the complete data set and improved analysis techniques including acoustic localization to allow fiducialization and removal of higher activity regions within the detectors. No signal consistent with dark matter was observed. We set limits for spin-dependent interactions on protons of σpSD = 1.32 ×  10−2 pb (90% C.L.) at a WIMP mass of 20  GeV/c2. In the spin-independent sector we exclude cross sections larger than σpSI = 4.86 ×  10−5 pb (90% C.L.) in the region around 7  GeV/c2. The pioneering efforts of the PICASSO experiment have paved the way forward for a next generation detector incorporating much of this technology and experience into larger mass bubble chambers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Astroparticle Physics - Volume 90, April 2017, Pages 85-92
نویسندگان
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