کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1771040 1020720 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Systematic uncertainties in air shower measurements from high-energy hadronic interaction models
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم نجوم و فیزیک نجومی
پیش نمایش صفحه اول مقاله
Systematic uncertainties in air shower measurements from high-energy hadronic interaction models
چکیده انگلیسی
Hadronic interaction models at cosmic ray (CR) energies are inherently uncertain due to the lack of a fundamental theoretical description of soft hadronic and nuclear interactions and the large extrapolation required from collider energies to the range of the most energetic cosmic rays observed (>1020 eV). Model uncertainties are evaluated within the QGSJET-II model, by varying some of the crucial parameters in the limits allowed by collider data, and between QGSJET-II and other models commonly used in air shower simulations. The crucial parameters relate to hard processes, string fragmentation, diffraction and baryon production. Results on inelastic cross sections, on secondary particle production and on the properties of air showers measured by ground detectors from energies of 1012 to 1019 eV are presented.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Astroparticle Physics - Volume 34, Issue 11, June 2011, Pages 832-839
نویسندگان
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