Muon puzzle in cosmic ray experiments and its possible solution

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• 作者：A.A. Petrukhin ^{AAPetrukhin@mephi.ru" class="auth_mail}
• 关键词：Cosmic rays ; High energies ; Extensive air showers ; Muon bundles ; Muon energy spectrum ; Quark-gluon matter
• 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
• 出版年：1 April, 2014
• 年：2014
• 卷：742
• 期：Complete
• 页码：228-231
• 全文大小：1048 K

文摘

The term 鈥渕uon puzzle鈥?was formulated at International Symposium on Future Directions in UHECR Physics in CERN 13-16 February 2012. In this paper, various aspects of muon puzzle are considered. Obtained experimental data can be divided into two types: muon bundle excess compared to simulations which is increasing with the increase of primary particle energy, and the excess of very-high-energy muons () in the muon energy spectrum. One of the possible (and realistic) solutions of the muon puzzle is the hypothesis about production of blobs of quark-gluon matter with large orbital momentum in nucleus-nucleus interactions at energies more than several PeV. Possibilities of the check of this hypothesis are discussed.