标题： 宇宙学在双重耦合的无质量引力中：来自超新星、BAO和CMB的约束 显示英文标题

标题： Cosmology in doubly coupled massive gravity: constraints from SNIa, BAO and CMB

摘要： 大质量引力在通过有效复合度规与双耦合物质场共存的情况下，会导致宇宙的加速膨胀。 最近已经证明，该模型允许稳定的德西特吸引子解，并可用作暗能量模型。 在这项工作中，我们对SNIa、BAO和CMB数据对该有效复合度规的大质量引力模型施加的约束进行了首次分析，并表明所有背景观测在1倍标准差水平上与该模型相互兼容。 显示英文摘要

摘要： Massive gravity in the presence of doubly coupled matter field via en effective composite metric yields an accelerated expansion of the universe. It has been recently shown that the model admits stable de Sitter attractor solutions and could be used as a dark energy model. In this work, we perform a first analysis of the constraints imposed by the SNIa, BAO and CMB data on the massive gravity model with the effective composite metric and show that all the background observations are mutually compatible at the one sigma level with the model.