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arXiv 0905.4146astro-ph.COastro-ph.HEhep-phhep-th
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超缓子和某些可能的暗物质特征

Superbradyons and some possible dark matter signatures

Luis Gonzalez-Mestres

摘要:

超光速前子(superbradyon)在真空中的临界速度远大于光速,如果它们存在的话,将作为物理真空和标准理论中考虑的常规粒子的组成部分发挥重要作用。那么,标准的洛仑兹对称性和量子力学就不会是时空和物质的终极基本性质。如果超慢子在我们的宇宙中以自由粒子的形式存在,它们预计会非常弱地耦合到“普通”物质,但它们可以通过发射标准粒子自发衰变,直到它们达到等于或接近光速的速度。然后,它们将形成一个宇宙学的海洋,在那里惯性质量和引力质量之间的关系将不同于传统的物理学。超缓子可能是宇宙学和天体物理学现象的起源,通常与暗物质、暗能量和暴胀有关。它们也可以是所有能量的常规宇宙射线的来源。在这种情况下,超慢子自发衰变和类似的相互作用将是候选人来解释电子和正电子丰度的数据(PAMELA,ATIC,费米LAT,HESS,PPB-BETS)被认为是可能的暗物质签名。发出这种辐射的超缓子甚至可能具有相对较小的惯性质量,并且动能与衰变事件的动能相差不远。但在大多数情况下,这种“轻”的超缓子在加速器实验中是找不到的。我们评论几个基本的物理和现象学问题与超慢子假说。

英文摘要:

Superluminal preons (superbradyons) with a critical speed in vacuum much larger than the speed of light would, if they exist, play a fundamental role as constituents of the physical vacuum and of the conventional particles considered in standard theories. Then, standard Lorentz symmetry and quantum mechanics would not be ultimate fundamental properties of space-time and matter. If superbradyons are present as free particles in our Universe, they are expected to couple very weakly to "ordinary" matter, but they can spontaneously decay by emitting standard particles until they reach a speed equal or close to that of light. They would then form a cosmological sea where the relation between inertial and gravitational masses would differ from conventional Physics. Superbradyons may be at the origin of cosmological and astrophysical phenomena usually associated to dark matter, dark energy and inflation. They can also be a source of conventional cosmic rays of all energies. In such a scenario, superbradyon spontaneous decays and similar interactions would be candidates to explain data on electron and positron abundances (PAMELA, ATIC, Fermi LAT, HESS, PPB-BETS) considered as possible dark matter signatures. Superbradyons emitting this radiation may even have comparatively small inertial masses, and kinetic energies not far away from those of the decay events. But in most cases, such "light" superbradyons could not be found at accelerator experiments. We comment on several basic physics and phenomenological issues in connection with the superbradyon hypothesis.

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。

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