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arXiv 1107.0741hep-phastro-ph.CO
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没有天体物理学不确定性的DAMA和CoGeNT

DAMA and CoGeNT without astrophysical uncertainties

Christopher McCabe

摘要:

CoGeNT合作报告了前15个月数据中年度调制的证据。在这里,我们比较了这个信号的振幅和相位的调制所观察到的DAMA合作,假设两者都出现由于弹性散射暗物质(DM)。我们直接将CoGeNT信号映射到DAMA探测器,而不指定任何天体物理参数,并将其与DAMA测量的信号进行比较。我们还比较了来自CDMS II和XENON 10的约束。我们发现,DM的质量5-14 GeV,平等地耦合到质子和中子是强烈不利的。违反同位旋的DM票价更好,但需要提高调制分数。

英文摘要:

The CoGeNT collaboration has reported evidence of an annual modulation in its first fifteen months of data. Here we compare the amplitude and phase of this signal to the modulation observed by the DAMA collaboration, assuming that both arise due to elastically scattering dark matter (DM). We directly map the CoGeNT signal to the DAMA detector without specifying any astrophysical parameters and compare this with the signal measured by DAMA. We also compare with constraints from CDMS II and XENON10. We find that DM of mass 5-14 GeV that couples equally to protons and neutrons is strongly disfavoured. Isospin-violating DM fares better but requires a boosted modulation fraction.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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