Sentences with phrase «wimp mass»

The example given above is a WIMP mass of 33 GeV / c2.

Even with just a few detection events — «maybe five,» Sadoulet suggests — CDMS should be able to make a lower limit estimate of WIMP mass and get an idea of the interaction rate, giving us a first glimpse at the properties of the cosmic dark stuff.

Abazajian and his team looked at 18 different ways WIMPs could annihilate and calculated the expected spectrum of photons for a range of possible WIMP masses and rates of annihilation.

As Fermi collects more data, «more and more chunks will be taken out [of the landscape of possible WIMP masses and annihilation rates] or the discovery is going to be made,» Abazajian said.

Not exact matches

In mass cultures, a «wimp faith» also may evoke a militantly postured confidence — which we sometimes call «fundamentalism.»

The conventional view is that dark matter is monolithic, made of one type of WIMP with a mass of 100 GeV.

But it is nonetheless intriguing because the mass of the WIMPs — if that's what triggered the signal — is 8.6 gigaelectronvolts, which fits with a tentative measurement made by CoGeNT in 2011.

The results back up intriguing models which say dark matter could be akin to normal matter in that it could be made of many kinds of particle, with low - mass WIMPs only one component.

If that was the case, each WIMP would have to be less than half the mass of the Higgs.

On one hand, their new constraints on the plausible masses and interactions of WIMPs are priming plans for next - generation detectors that could offer better chances of success.

Because of uncertainties over the exact mass and interaction strength of these elusive particles, the WIMP search space spans eight orders of magnitude.

For axions to explain dark matter, they would need to occupy a relatively narrow range of masses and be far lighter than WIMPs, potentially making them even harder to detect.

This effect can shift the date of the maximum number of collisions by anything from a few days up to several months, depending on the WIMPs» mass and speed (Physical Review Letters, DOI: 10.1103 / PhysRevLett.112.011301).

Physicists expect WIMPs to have a mass somewhere between 1 and 200 giga - electron volts (GeV)-- roughly between 1 and 200 times the mass of a proton — although in principle the mass could be higher.

Those initial results were confirmed: There were no low - mass WIMP events in the first run.

To calibrate the LUX for low - mass WIMPS, the LUX team fired low - mass neutrons directly into the detector and used the detector's instruments precisely measure the characteristics of the neutron recoil.

Along with the low - mass wimps, the first 90 - day run of LUX ruled out a wide swath of possibilities for what dark matter could be made of.

For axions to explain dark matter, they would need to occupy a relatively narrow range of masses and be far lighter than WIMPs.

The key is how well LUX researchers have calibrated their detector and whether they can show that it's truly sensitive to low - mass WIMPs, says Juan Collar, a physicist at the University of Chicago in Illinois and leader of the CoGeNT team.

The published results of these studies have set stringent limits on the mass ranges and interaction rates for many proposed WIMPs, even eliminating some models.

They homed in on the weakly interacting massive particle, or WIMP, a sluggish entity with a mass of around 100 gigaelectronvolts (GeV), or 100 times that of a proton.

Far from being heavyweight couch potatoes, WIMPs are turning out to be lively flyweights with a mass of 10 GeV — just a tenth of that expected.

And Hooper says that the results do not rule out low - mass WIMPs similar to those that may have been seen in the underground experiments.

Such particles would have no more than one - thousandth the mass of WIMPs.

WIMPs are candidate particles for dark matter, which is invisible material of unknown composition that accounts for 85 percent of the mass of the universe.

The putative mass of the WIMP particles that CoGeNT possibly has detected ranges from six to 10 billion electron volts, or approximately seven times the mass of a proton.

With an expected mass of 50 - 1,000 billion electron volts (GeV)-- the mass of a proton is 1 GeV — and weak interaction with everyday matter, the neutralino is a prime candidate for being a WIMP.

Therefore, most detectors have been built to detect particles the size of WIMPs, thought to weigh more than 100 times the mass of a proton.

They are known as WIMPs (for weakly interacting massive particles), and if they exist, these particles have masses tens or hundreds of times greater than that of a proton but interact so weakly with ordinary matter that they're difficult to detect.

Derenzo and his colleague wrote that despite overwhelming evidence for dark matter, recent large - scale experiments designed to detect nuclear recoils from dark matter particles with masses of WIMPs have not yet seen a definitive signal.