https://plus.google.com/u/0/111245545391602992049/posts/HFZ26L3mf9w
但二者可都是125GeV的样子,巧合的可能性不大吧?
7.6日LHC宣布了Higgs的发现,今天有人来HKU做报告了,主要是介绍LHC,顺便介绍了Higgs粒子。原来我们人体的质量也只有约1%来自Higgs,更多的是结合能所对应的质量。
On the connection of Gamma-rays, Dark Matter and Higgs searches at LHC
(Submitted on 25 Jun 2012)
Motivated by the upcoming Higgs analyzes we investigate the importance of the complementarity of the Higgs boson chase on the low mass WIMP search in direct detection experiments and the gamma-ray emission from the Galactic Center measured by the Fermi-LAT telescope in the context of the $SU(3)_c\otimes SU(3)_L\otimes U(1)_N$. We obtain the relic abundance, thermal cross section, the WIMP-nucleon cross section in the low mass regime and network them with the branching ratios of the Higgs boson in the model. We conclude that the Higgs boson search has a profound connection to the dark matter problem in our model, in particular for the case that ($M_{WIMP} < 60$ GeV) the BR($H \rightarrow 2$ WIMPs) $\gtrsim 90%$. This scenario could explain this plateau of any mild excess regarding the Higgs search as well as explain the gamma-ray emission from the galactic center through the $b\bar{b}$ channel with a WIMP in the mass range of 25-45 GeV, while still being consistent with the current limits from XENON100 and CDMSII. However, if the recent modest excesses measured at LHC and TEVATRON are confirmed and consistent with a standard model Higgs boson this would imply that $ M_{WIMP} > 60 $ GeV, consequently ruling out any attempt to explain the Fermi-LAT observations.
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