کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8132810 1523344 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reconstruction of air shower muon densities using segmented counters with time resolution
ترجمه فارسی عنوان
بازسازی تراکم های میون آب دوش با استفاده از شمارنده های قطعه ای با تفکیک زمانی
کلمات کلیدی
پرتوهای کیهانی انرژی فوق العاده بالا، ترکیب جرم اولیه اشعه کیهانی، شمارنده ذرات، احتمال احتمال احتمال یکپارچه،
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم نجوم و فیزیک نجومی
چکیده انگلیسی
Despite the significant experimental effort made in the last decades, the origin of the ultra-high energy cosmic rays is still largely unknown. Key astrophysical information to identify where these energetic particles come from is provided by their chemical composition. It is well known that a very sensitive tracer of the primary particle type is the muon content of the showers generated by the interaction of the cosmic rays with air molecules. We introduce a likelihood function to reconstruct particle densities using segmented detectors with time resolution. As an example of this general method, we fit the muon distribution at ground level using an array of counters like AMIGA, one of the Pierre Auger Observatory detectors. For this particular case we compare the reconstruction performance against a previous method. With the new technique, more events can be reconstructed than before. In addition the statistical uncertainty of the measured number of muons is reduced, allowing for a better discrimination of the cosmic ray primary mass.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Astroparticle Physics - Volume 82, September 2016, Pages 108-116
نویسندگان
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