arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1502.04490hep-phastro-ph.IMphysics.ins-det
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太阳隐藏光子搜索(SHIPS)

Results from the Solar Hidden Photon Search (SHIPS)

Matthias Schwarz, Ernst-Axel Knabbe, Axel Lindner, Javier Redondo, Andreas Ringwald, Magnus Schneide, Jaroslaw Susol, Günter Wiedemann

摘要:

我们提出的搜索结果的横向偏振隐藏的光子(HP)与$\sim 3$ eV的能量从太阳发出的。这些假想的粒子,也被称为准光子或暗区光子,在理论上是很好的动机,例如由弦论启发的标准模型的扩展。亚电子伏特质量的太阳HP可以转换成相同能量的光子(光子$\leftrightarrow$ HP振荡类似于中微子味振荡)。在SHIPS,这将发生在一个长的、不透光的高真空管内,它跟踪太阳。然后,产生的光子将被聚焦到管远端的低噪声光电倍增管中。我们对330 h的数据(和{330 h}的背景表征)的分析表明,没有来自太阳隐藏光子转换的光子信号。我们估计,在95 $%$ C. L下,由于这种转换而产生的新光子的速率小于25 mHz/m $^2$。使用这个和最近的太阳HP排放模型,我们设置严格的限制$χ$,HP和光子之间的耦合常数,作为HP质量的函数。

英文摘要:

We present the results of a search for transversely polarised hidden photons (HPs) with $\sim 3$ eV energies emitted from the Sun. These hypothetical particles, known also as paraphotons or dark sector photons, are theoretically well motivated for example by string theory inspired extensions of the Standard Model. Solar HPs of sub-eV mass can convert into photons of the same energy (photon$\leftrightarrow$HP oscillations are similar to neutrino flavour oscillations). At SHIPS this would take place inside a long light-tight high-vacuum tube, which tracks the Sun. The generated photons would then be focused into a low-noise photomultiplier at the far end of the tube. Our analysis of 330 h of data (and {330 h} of background characterisation) reveals no signal of photons from solar hidden photon conversion. We estimate the rate of newly generated photons due to this conversion to be smaller than 25 mHz/m$^2$ at the 95$%$ C.L. Using this and a recent model of solar HP emission, we set stringent constraints on $χ$, the coupling constant between HPs and photons, as a function of the HP mass.

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