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arXiv 1402.0418hep-phastro-ph.HEhep-ex
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超高能Cosmic Ray相互作用中的重夸克产生

Heavy Quark Production in Ultra High Energy Cosmic Ray Interactions

V. P. Goncalves, D. R. Gratieri

摘要:

本文对大气中超高能宇宙线相互作用中的重夸克产生进行了全面的研究,考虑到初级宇宙线可以是光子、中微子或质子。分析是使用一个统一的框架-偶极子形式主义--和饱和效应,与部分子重组的物理过程,考虑到。我们表明,宇宙射线相互作用的重夸克的贡献一般是不可忽略的,可以是主要的过程中考虑的依赖。此外,我们的研究结果表明,新的动力学机制,应包括为了获得可靠的预测在超高宇宙线能量的$pp$碰撞的重夸克的生产。

英文摘要:

In this paper we present a comprehensive study of the heavy quark production in ultra high energy cosmic ray interactions in the atmosphere considering that the primary cosmic ray can be either a photon, neutrino or a proton. The analysis is performed using a unified framework -- the dipole formalism --- and the saturation effects, associated to the physical process of parton recombination, are taken into account. We demonstrate that the contribution of heavy quarks for cosmic ray interactions is in general non-negligible and can be dominant depending of the process considered. Moreover, our results indicate that new dynamical mechanisms should be included in order to obtain reliable predictions for the heavy quark production in $pp$ collisions at ultra high cosmic ray energies.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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