在近地小行星中寻找原始夸克块金
The search for Primordial Quark Nuggets among Near Earth Asteroids
摘要:
夸克-强子相变的残余物--原始夸克块,可能在超致密块中隐藏了大部分重子数,多年来一直从理论的角度进行讨论。虽然它们最初在中等宇宙温度下似乎很脆弱,但越来越清楚的是,由于各种影响其蒸发(表面和体积)速率的影响,它们可能会存活下来。对这些物体的研究从未试图阐明它们的存在。我们在这篇文章中讨论了如何在接近地球的小行星中直接寻找宇宙学化石金块。具有高可见光与红外线通量比、恒定光变曲线和缺乏光谱特征的“小行星”是实际可能的金块性质的信号。作为正在进行/即将进行的近地小行星观测方案的附带成果,可以对非常明确的原始夸克块金特征进行可行的搜索。
英文摘要:
Primordial Quark Nuggets,remnants of the quark-hadron phase transition, may be hiding most of the baryon number in superdense chunks have been discussed for years always from the theoretical point of view. While they seemed originally fragile at intermediate cosmological temperatures, it became increasingly clear that they may survive due to a variety of effects affecting their evaporation (surface and volume) rates. A search of these objects have never been attempted to elucidate their existence. We discuss in this note how to search directly for cosmological fossil nuggets among the small asteroids approaching the Earth. ``Asteroids'' with a high visible-to-infrared flux ratio, constant lightcurves and devoid of spectral features are signals of an actual possible nugget nature. A viable search of very definite primordial quark nugget features can be conducted as a spinoff of the ongoing/forthcoming NEAs observation programmes.
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。