The road to no-scale supergravity
The road to no-scale supergravity
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DOI：
10.1016/0370-1573(87)90034-2
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发表时间：
1987
期刊：
影响因子：
--
通讯作者：
A. Lahanas;D. Nanopoulos
中科院分区：
文献类型：
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作者：
A. Lahanas;D. Nanopoulos
无标度超引力是描述普朗克标度（mp = 1019GeV）以下能量自然的有效理论的主要候选者。它的优点，如一个自动消失的宇宙学常数（至少在经典水平上），动力学确定的所有质量尺度的基本一个（mp）和可接受的低能现象，使无标度超引力独特。此外，它可能提供了有效低能理论和基本万有理论（TOE）之间缺失的一环，因为它可能被推导为超弦的低能极限，我们最好的候选者为TOE。在本报告中，我们不仅讨论了无标度模型的结构、物理性质和含义，而且还相当详细地研究了在其结构中起作用的所有基本成分，如超对称性和超引力。超对称和最小超引力模型进行了讨论，包括他们的弱点，最终导致我们的无标度模型。最后，我们还介绍了超弦理论的一些最新进展，以及这些进展如何与我们的无标度结构相联系。
No-scale supergravity is a leading candidate for an effective theory that describes nature at energies below the Planck scale (mp≌1019GeV). Its virtues, such as an automatically vanishing cosmological constant (at least at the classical level), dynamical determination of all mass scales in terms of a fundamental one (mp) and acceptable low-energy phenomenology makes no-scale supergravity unique. Furthermore, it may provide the missing link between an effective low-energy theory and the fundamental Theory Of Everything (TOE), as it may be derived as the low-energy limit of the superstring, our best candidate for the TOE. In this report not only do we discuss the structure, physical properties, and implications of no-scale models but we also study in considerable detail all the basic ingredients that come to play in their structure, such as supersymmetry and supergravity. Supersymmetry and minimal supergravity models are discussed, including their weak points that eventually lead us to no-scale models. At the end, we also cover some recent developments in superstring theories and how these are connected with our no-scale structure.