论文标题
RHIC和LHC的扰动魅力产生和迅速的大气中微子通量
Perturbative Charm Production and the Prompt Atmospheric Neutrino Flux in light of RHIC and LHC
论文作者
论文摘要
由于宇宙射线和大气核相互作用在大气中产生的诱人的介体的衰减引起的迅速中微子可能是超高能量中微子搜索在10 TEV以上的超高能量中微子搜索的重要来源。我们使用基于QCD参数，魅力夸克质量的更新的魅力生产横截面重新评估了这种通量，以及在RHIC和LHC上提供固定目标实验的该数据的最佳描述的分解和重新归一化量表的范围。我们发现，根据能量的不同，文献中先前的结果迅速中微通量减少了两到八。我们讨论结果对当前ICECUBE数据的含义。
Prompt neutrinos due to the decay of charmed mesons produced in the atmosphere from cosmic-ray and atmospheric nuclei interactions may be a significant source of background to ultra-high energy neutrino searches above 10 TeV. We re-evaluate this flux using updated charm production cross-sections based on QCD parameters, the charm quark mass, and the range for the factorization and renormalization scales that provide the best description of this data at fixed target experiments, at RHIC, and at LHC. We find that the prompt neutrino flux is reduced from previous results in the literature by a factor between two and eight, depending on the energy. We discuss the implications of our results for current IceCube data.
