论文标题
从大气中和高能量山脉中的魅力中迅速产生迅速中微子
Forward production of prompt neutrinos from charm in the atmosphere and at high energy colliders
论文作者
论文摘要
高能量大气中微子通量由中微子从与空气核的宇宙射线相互作用在向前方向产生的诱人的黑龙的衰减所支配。我们评估了对大气中微子通量迅速中微子通量的魅力贡献，这是质量中心能量$ \ sqrt {s} $的HADRONIC碰撞和质量中心快速性$ y $ y $ y $ y $ y $的函数。与Parton分配功能相关的不确定性也被评估为$ Y $的函数。我们发现，LHCB的$ y $覆盖范围用于前向重风味生产，并在LHC的当前和未来前向中微子实验的角度覆盖中得到了补充，这是迅速大气中性粉丝磁中intinino flux的最有趣的$ y $区域。在$ \ sqrt {s} = 14 $ tev预见到HL-LHC阶段，空气中的Nucleon Collisisions在迅速中微子通量中促进了低于$e_ν\ sim 10^7 $ 〜Gev的及时中微子通量。在强子碰撞中产生的前向魅力和/或前向中微子的测量值最高$ \ sqrt {s} = 100 $ tev，可能在FCC上可能会变得可能会变得可能是可能的，它与迅速的大气中微子通量最高可达$e_ν= 10^8 $ GEV及以后。
The high-energy atmospheric neutrino flux is dominated by neutrinos from the decays of charmed hadrons produced in the forward direction by cosmic ray interactions with air nuclei. We evaluate the charm contributions to the prompt atmospheric neutrino flux as a function of the center-of-mass energy $\sqrt{s}$ of the hadronic collision and of the center-of-mass rapidity $y$ of the produced charm hadron. Uncertainties associated with parton distribution functions are also evaluated as a function of $y$. We find that the $y$ coverage of LHCb for forward heavy-flavour production, complemented by the angular coverage of present and future forward neutrino experiments at the LHC, bracket the most interesting $y$ regions for the prompt atmospheric neutrino flux. At $\sqrt{s}=14$ TeV foreseen for the HL-LHC phase, nucleon collisions in air contribute to the prompt neutrino flux prominently below $E_ν\sim 10^7$~GeV. Measurements of forward charm and/or forward neutrinos produced in hadron collisions up to $\sqrt{s}=100$ TeV, which might become possible at the FCC, are relevant for the prompt atmospheric neutrino flux up to $E_ν=10^8$ GeV and beyond.
