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arXiv 0706.0108hep-ph
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在实验室实验中寻找高能宇宙轴子:测试PVLAS异常

Searching for energetic cosmic axions in a laboratory experiment: testing the PVLAS anomaly

M. Fairbairn, S. N. Gninenko, N. V. Krasnikov, V. A. Matveev, T. I. Rashba, A. Rubbia, Sergey Troitsky

摘要:

高能伽马射线的天体物理源为(伪)标量(类轴子)粒子和光子之间的最大混合提供了合适的条件,如果它们的耦合像PVLAS声称的那样强的话。这与轴子相互作用是否在所有能量下都是标准的或在恒星内部的极端条件下被抑制无关。这种粒子通过地球的通量可以使用一米长的特斯拉强度超导螺线管来观察,从而测试PVLAS异常的轴子解释。在CAST的事件率所造成的轴子从蟹状脉冲星的PVLAS有利的参数也估计。

英文摘要:

Astrophysical sources of energetic gamma rays provide the right conditions for maximal mixing between (pseudo)scalar (axion-like) particles and photons if their coupling is as strong as suggested by the PVLAS claim. This is independent of whether or not the axion interaction is standard at all energies or becomes supressed in the extreme conditions of the stellar interior. The flux of such particles through the Earth could be observed using a metre long, Tesla strength superconducting solenoid thus testing the axion interpretation of the PVLAS anomaly. The rate of events in CAST caused by axions from the Crab pulsar is also estimated for the PVLAS-favoured parameters.

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