论文标题

在电离时期对电子与普罗替子质量比变化的限制

Constraints on the electron-to-proton mass ratio variation at the epoch of reionization

论文作者

Levshakov, S. A., Kozlov, M. G., Agafonova, I. I.

论文摘要

CI和CII的远红外结构跃迁以及CO的旋转跃迁用于探测电子与原质子质量比MU = m_e/m_p的假设变化(z> 6)。对Delta Mu/Mu =(MU_OBS-MU_LAB)/MU_LAB =(0.7 +/- 1.2)X10^-5(1sigma)的约束,在<z> = 6.31处获得的是最严格的最新限制,以使MU的变化在如此高的送射处的MU变化。对于z = 0和z = 1100之间的Delta Mu/Mu范围的所有可用估计, - 重新组合时期, - 回归曲线delta mu/mu = k_mu(1 +z)^p,k_mu =(1.6 +/- 0.3)+/- 0.3)x10^-8 and p = 2.00 +//--03,deptused。如果得到证实,这将意味着暗物质/暗能量的动态性质。

Far infrared fine-structure transitions of CI and CII and rotational transitions of CO are used to probe hypothetical variations of the electron-to-proton mass ratio mu = m_e/m_p at the epoch of reionization (z > 6). A constraint on Delta mu/mu = (mu_obs - mu_lab)/mu_lab = (0.7 +/- 1.2)x10^-5 (1sigma) obtained at <z> = 6.31 is the most stringent up-to-date limit on the variation of mu at such high redshift. For all available estimates of Delta mu/mu ranging between z = 0 and z = 1100, - the epoch of recombination, - a regression curve Delta mu/mu = k_mu (1+z)^p, with k_mu = (1.6 +/- 0.3) x10^-8 and p = 2.00 +/- 0.03, is deduced. If confirmed, this would imply a dynamical nature of dark matter/dark energy.

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