Neutrinos from primordial black holes in theories with extra dimensions

IF 5.3 2区物理与天体物理 Q1 Physics and Astronomy

Physical Review D Pub Date : 2025-10-16 DOI:10.1103/5kt2-5pvj

Luis A. Anchordoqui, Francis Halzen, Dieter Lüst

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Abstract

The quantum gravity scale within the dark dimension scenario (M*∼109GeV) roughly coincides with the energy scale of the KM3-230213A neutrino (Eν∼108 GeV). We propose an interpretation for this intriguing coincidence in terms of Hawking evaporation of five-dimensional (5D) primordial black holes (PBHs). 5D PBHs are bigger, colder, and longer-lived than 4D PBHs of the same mass. For brane observers, PBHs residing in the higher-dimensional bulk decay essentially invisibly (only through gravitationally and sterile coupled modes). As a consequence, constraints on the density of PBHs relative to that of dark matter from null searches of Hawking evaporation can be avoided. We demonstrate that Hawking evaporation of 5D bulk PBHs can explain the KM3-230213A neutrino, evade constraints from upper limits on the gamma-ray flux, and remain consistent with IceCube upper limits on the partial decay width of superheavy dark matter particles into neutrinos.

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来自原始黑洞的中微子存在于额外维度理论中

暗维场景中的量子引力尺度（M* ~ 109GeV）大致与KM3-230213A中微子（Eν ~ 108 GeV）的能量尺度一致。我们根据五维（5D）原始黑洞（PBHs）的霍金蒸发（Hawking蒸发）对这一有趣的巧合提出了一种解释。5D pbh比相同质量的4D pbh更大、更冷、寿命更长。对于膜观察者来说，存在于高维体中的pbh基本上是不可见的衰变（仅通过引力和无菌耦合模式）。因此，可以避免由霍金蒸发的零搜索对pbh相对于暗物质的密度的限制。我们证明了5D体pbh的霍金蒸发可以解释KM3-230213A中微子，避开了伽玛射线通量上限的限制，并且与冰立方关于超重暗物质粒子部分衰变宽度的上限保持一致。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physical Review D 物理-天文与天体物理

CiteScore

9.20

自引率

36.00%

发文量

审稿时长

2 months

期刊介绍： Physical Review D (PRD) is a leading journal in elementary particle physics, field theory, gravitation, and cosmology and is one of the top-cited journals in high-energy physics. PRD covers experimental and theoretical results in all aspects of particle physics, field theory, gravitation and cosmology, including: Particle physics experiments, Electroweak interactions, Strong interactions, Lattice field theories, lattice QCD, Beyond the standard model physics, Phenomenological aspects of field theory, general methods, Gravity, cosmology, cosmic rays, Astrophysics and astroparticle physics, General relativity, Formal aspects of field theory, field theory in curved space, String theory, quantum gravity, gauge/gravity duality.