Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

The rumor mill is running again, this time it's about the AMS experiment (Alpha Magnetic Spectrometer) that's going to make a major announcement soon.

I suppose they are looking for peaks in gamma and antiproton spectra due to dark matter annihilation. To get a better idea of what kind of results (positive or negative) we can expect, I'm wondering what kind of models they can probe and what their current reach is.

For example, assuming neutralino dark matter, can they strictly exclude $\tilde\chi^0_1$ masses up to $x$ GeV (like LEP)? Or only under such-and-such conditions (e.g. $\tan \beta > \ldots)$? What parameter regions of cMSSM-like SUSY models are within reach, which axion masses, etc.?

share|cite|improve this question
see also – Christoph Apr 3 '13 at 20:54

The paper containing the first results from AMS can be found here

As I understand, AMS can make measurements about and above the electroweak symmetry breaking scale ($\mathcal{O}(100\,\text{GeV})$), so it's well placed to make measurements of a number of dark matter candidates.

share|cite|improve this answer
Welcome to Physics SE! It would be kind of you to provide al link, the day it is officially announced. – Stefan Bischof Mar 21 '13 at 12:18
@StefanBischof It looks like there is going to be an announcement today by NASA at 1:30 ET. For more information go here – OSE Apr 3 '13 at 15:38

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.