标题： 松散的弦宇宙学情景中径向子质量的界限 显示英文标题

标题： Relaxed Bounds on the Dilaton Mass in a String Cosmology Scenario

摘要： 我们讨论了由于稀释子背景的量子涨落的宇宙学放大而得出的稀释子质量的限制，在假设这些涨落相对于经典背景振荡占主导地位的前提下。 我们表明，如果涨落谱随着频率增长，则与更传统的平坦或下降谱的情况相比，这些限制会变得宽松。 因此，允许的质量范围可能与超对称破缺模型以及目前由稀释子暗物质遗迹背景主导的宇宙相兼容。 显示英文摘要

摘要： We discuss bounds on the dilaton mass, following from the cosmological amplification of the quantum fluctuations of the dilaton background, under the assumption that such fluctuations are dominant with respect to the classical background oscillations. We show that if the fluctuation spectrum grows with the frequency the bounds are relaxed with respect to the more conventional case of a flat or decreasing spectrum. As a consequence, the allowed range of masses may become compatible with models of supersymmetry breaking, and with a universe presently dominated by a relic background of dilaton dark matter.