未来地面CMB试验设计指南
A Guide to Designing Future Ground-based CMB Experiments
摘要：
在2013年高能物理社区夏季研究（HEP CSS 2013，a.k.a. Snowmass），我们探索未来的第四阶段宇宙微波背景偏振实验（CMB-S4）的科学能力，在探测器数量，分辨率和天空覆盖范围的各种假设下。我们使用Fisher矩阵技术来计算$νΛ$ CDM中宇宙学参数的预期不确定性，这些参数与基本相互作用的物理学特别相关，包括中微子质量、相对论物质的有效数、暗能量状态方程、暗物质湮灭和暴胀参数。为了进一步绘制未来宇宙学探测器的景观，我们包括预测结果的重子声振荡（BAO）信号测量DESI约束参数，将受益于低红移信息。我们发现以下最佳1-sigma约束：$σ$约束：$σ(M_ν)= 15$ meV，$σ(N_{\rm eff})= 0.0156$，暗能量品质因数= 303，$σ(p_{ann})= 0.00588\times3\times10^{-26}$ cm $^3$ /s/GeV，$σ(Ω_K)= 0.00074$，$σ(n_s)= 0.00110$，$σ(α_s)= 0.00145$和$σ(r)= 0.00009$。我们还详细说明了探测器数量，分辨率和天空覆盖的参数约束的依赖关系。
英文摘要：
In this follow-up work to the High Energy Physics Community Summer Study 2013 (HEP CSS 2013, a.k.a. Snowmass), we explore the scientific capabilities of a future Stage-IV Cosmic Microwave Background polarization experiment (CMB-S4) under various assumptions on detector count, resolution, and sky coverage. We use the Fisher matrix technique to calculate the expected uncertainties in cosmological parameters in $νΛ$CDM that are especially relevant to the physics of fundamental interactions, including neutrino masses, effective number of relativistic species, dark-energy equation of state, dark-matter annihilation, and inflationary parameters. To further chart the landscape of future cosmology probes, we include forecasted results from the Baryon Acoustic Oscillation (BAO) signal as measured by DESI to constrain parameters that would benefit from low redshift information. We find the following best 1-sigma constraints: $σ$ constraints: $σ(M_ν)= 15$ meV, $σ(N_{\rm eff})= 0.0156$, Dark energy Figure of Merit = 303, $σ(p_{ann})= 0.00588\times3\times10^{-26}$ cm$^3$/s/GeV, $σ(Ω_K)= 0.00074$, $σ(n_s)= 0.00110$, $σ(α_s)= 0.00145$, and $σ(r)= 0.00009$. We also detail the dependences of the parameter constraints on detector count, resolution, and sky coverage.
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。
