D-term inflation, cosmic strings, and consistency with cosmic microwave background measurements.

D-term inflation, cosmic strings, and consistency with cosmic microwave background measurements.
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D 项膨胀、宇宙弦以及与宇宙微波背景测量的一致性。

DOI:
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发表时间:
2004
影响因子:
8.6
通讯作者:
M. Sakellariadou
M. Sakellariadou
中科院分区:
物理与天体物理1区
文献类型:
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作者:
J. Rocher;M. Sakellariadou

文献摘要

被引文献

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在超重力的框架下研究了标准d项暴胀。d项暴胀产生宇宙弦;然而,它仍然可以与宇宙微波背景(CMB)测量兼容,而无需调用任何新的物理学。宇宙弦对CMB数据的贡献不是恒定的,也不是主要的,这与之前的一些结果相反。利用目前的CMB测量,d项暴胀的自由参数(规范和超势耦合,以及Fayet-Iliopoulos项)受到了约束。
Standard D-term inflation is studied in the framework of supergravity. D-term inflation produces cosmic strings; however, it can still be compatible with cosmic microwave background (CMB) measurements without invoking any new physics. The cosmic strings contribution to the CMB data is not constant, nor dominant, contrary to some previous results. Using current CMB measurements, the free parameters (gauge and superpotential couplings, as well as the Fayet-Iliopoulos term) of D-term inflation are constrained.