宇宙监督对矢量非粒子物理的限制
Constraints on vector unparticle physics from cosmic censorship
摘要：
矢量非粒子与标准模型场的耦合产生了对引力的排斥修正。从广义相对论的角度来看，这导致了一个有效的类Reissner-Nordström度规，其"电荷"是非粒子耦合常数$λ$的函数，因此可以允许裸奇点。要求系统遵守宇宙审查提供了一种约束$λ$值的新方法。这些限制对于恒星质量的黑洞来说是非常宽松的，但与原始黑洞的现有界限相当。在理论上的低质量黑洞的情况下，对$λ$的边界是严格得多，从天体物理学和加速器现象学。对$λ$下限的附加约束用于估计在非粒子框架中可以形成的最小可能黑洞$\Mbh^{\rm min}$的质量，作为非粒子参数（$Λ_\unp,M_\unp,\du,\dbz$）的函数。
英文摘要：
Vector unparticle couplings to standard model fields produce repulsive corrections to gravity. From a general relativistic perspective, this leads to an effective Reissner-Nordström-like metric whose "charge" is a function of the unparticle coupling constant $λ$, and therefore can admit naked singularities. Requiring the system to respect cosmic censorship provides a new method of constraining the value of $λ$. These limits are extremely loose for stellar-mass black holes, but commensurate with existing bounds for primordial black holes. In the case of theoretical low-mass black holes, the bounds on $λ$ are much stricter than those derived from astrophysical and accelerator phenomenology. Additional constraints on the lower limit of $λ$ are used to estimate the mass of the smallest possible black hole $\Mbh^{\rm min}$ that can be formed in the unparticle framework, as a function of the unparticle parameters ($Λ_\unp,M_\unp,\du,\dbz$).
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