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arXiv 2308.02808hep-phastro-ph.HE
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大气中及高能对撞机上瞬发中微子的前向产生

Forward production of prompt neutrinos in the atmosphere and at high-energy colliders

Yu Seon Jeong, Weidong Bai, Milind Diwan, Maria Vittoria Garzelli, Karan Kumar, Mary Hall Reno

AI总结:

本文研究由前向粲强子衰变主导的瞬发大气中微子通量,利用对撞机运动学变量刻画相关区域,并讨论LHC前向实验对理论预言的约束作用。

摘要:

极高能下的大气中微子通量由瞬发中微子主导,其主要贡献来自宇宙线与空气核相互作用在前向方向产生的粲强子衰变。瞬发大气中微子通量的理论预言存在很大不确定性,主要与粲强子产生有关。瞬发中微子也可以通过高能对撞机进行研究。特别是,LHC 上两个正在进行的前向实验以及拟议的前向物理设施(Forward Physics Facility)能够探测前向瞬发中微子。我们将用对撞机运动学变量、碰撞能量 $\sqrt{s}$ 和粲强子的质心快度 $y$ 来呈现与瞬发大气中微子通量相关的运动学区域,并讨论 LHC 上前向实验对瞬发大气中微子通量理论预言的影响。

英文摘要:

The atmospheric neutrino flux at very high energies is dominated by prompt neutrinos, mostly contributed by the decays of charmed hadrons produced in the forward direction by cosmic ray interactions with air nuclei. Theoretical predictions of the prompt atmospheric neutrino flux have large uncertainties mainly related to charm hadron production. Prompt neutrinos can also be studied through high-energy colliders. In particular, two ongoing forward experiments and the proposed Forward Physics Facility at the LHC can detect forward prompt neutrinos. We will present the kinematic regions relevant to the prompt atmospheric neutrino flux in terms of collider kinematic variables, the collision energy $\sqrt{s}$ and the center-of-mass rapidity of charm hadrons $y$, and discuss implications of the forward experiments at the LHC on the theoretical predictions of the prompt atmospheric neutrino flux.

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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