由格林-施瓦茨机制产生的清晰的暗物质gamma ray线
A clear Dark Matter gamma ray line generated by the Green-Schwarz mechanism
摘要：
我们研究了标准模型的$U_X(1)$扩展的唯象，其中SM粒子在新的阿贝尔群下不带电。Green-Schwarz机制保证了模型是无异常的。过去看不见的暗规范场$X$，即使在大型强子对撞机上很难产生，但在伽马射线望远镜上有一个清晰的信号。我们调查什么BSM规模（这可以被解释为一个低能量的字符串规模）将达到FERMI/GLAST望远镜运行5年后，表明2 TeV规模可以测试，这是非常有竞争力的LHC。
英文摘要：
We study the phenomenology of a $U_X(1)$ extension of the Standard Model where the SM particles are not charged under the new abelian group. The Green-Schwarz mechanism insures that the model is anomaly free. The erstwhile invisible dark gauge field $X$, even if produced with difficulty at the LHC has however a clear signature in gamma-ray telescopes. We investigate what BSM scale (which can be interpreted as a low-energy string scale) would be reachable by the FERMI/GLAST telescope after 5 years of running and show that a 2 TeV scale can be testable, which is highly competitive with the LHC.
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