Sentences with phrase «by dark matter annihilations»

It is able to look for even higher - energy electrons and positrons, numbers of which should suddenly drop off if they are caused by dark matter annihilations, but not if caused by pulsars.

Not exact matches

The instruments that search for these products of dark matter annihilation were conceived as telescopes or detectors to look at particles and photons emitted by galaxies and the exotic objects that lie within them.

The absence of dark matter annihilation signals outside the Milky Way could be a crucial hint towards this richer theory of dark matter, which will be tested by future observations.

One of the most exciting ideas proposed by Freese is that the universe's first stars were powered not by nuclear fusion, but by the annihilation of dark matter particles.

A popular theory holds that there are three different mechanisms by which dark matter annihilation can produce these gamma rays, two of which have been observed previously.

At that time, an obscuring fog of neutral hydrogen atoms was being burned off by radiation from the first stars and galaxies, and possibly also from the annihilation of dark matter particles.

«Dark matter in this mass range can be probed by direct detection and by the Large Hadron Collider (LHC), so if this is dark matter, we're already learning about its interactions from the lack of detection so far,» said co-author Tracy Slatyer, a theoretical physicist at MIT in Cambridge, Mass. «This is a very exciting signal, and while the case is not yet closed, in the future we might well look back and say this was where we saw dark matter annihilation for the first time.&raDark matter in this mass range can be probed by direct detection and by the Large Hadron Collider (LHC), so if this is dark matter, we're already learning about its interactions from the lack of detection so far,» said co-author Tracy Slatyer, a theoretical physicist at MIT in Cambridge, Mass. «This is a very exciting signal, and while the case is not yet closed, in the future we might well look back and say this was where we saw dark matter annihilation for the first time.&radark matter, we're already learning about its interactions from the lack of detection so far,» said co-author Tracy Slatyer, a theoretical physicist at MIT in Cambridge, Mass. «This is a very exciting signal, and while the case is not yet closed, in the future we might well look back and say this was where we saw dark matter annihilation for the first time.&radark matter annihilation for the first time.»