Quantcast
  • Register
PhysicsOverflow is a next-generation academic platform for physicists and astronomers, including a community peer review system and a postgraduate-level discussion forum analogous to MathOverflow.

Welcome to PhysicsOverflow! PhysicsOverflow is an open platform for community peer review and graduate-level Physics discussion.

Please help promote PhysicsOverflow ads elsewhere if you like it.

News

New features!

Please do help out in categorising submissions. Submit a paper to PhysicsOverflow!

... see more

Tools for paper authors

Submit paper
Claim Paper Authorship

Tools for SE users

Search User
Reclaim SE Account
Request Account Merger
Nativise imported posts
Claim post (deleted users)
Import SE post

Users whose questions have been imported from Physics Stack Exchange, Theoretical Physics Stack Exchange, or any other Stack Exchange site are kindly requested to reclaim their account and not to register as a new user.

Public \(\beta\) tools

Report a bug with a feature
Request a new functionality
404 page design
Send feedback

Attributions

(propose a free ad)

Site Statistics

122 submissions , 103 unreviewed
3,497 questions , 1,172 unanswered
4,548 answers , 19,352 comments
1,470 users with positive rep
409 active unimported users
More ...

What exactly are super WIMPs?

+ 1 like - 0 dislike
9 views

I recently got confused (and slightly annoyed by the lack of technical details) when reading a popular article (authored by Jonathan Feng and Mark Trodden) introducing the concept of super WIMPs.

The article characterized super WIMPs (without giving more detailed explanations) as follows:

  • WIMPs could probably decay to so-called super WIMPs, which would only gravitationally interact with visible matter

  • different kinds of super WIMP particles could interact via additional newly postulated weak "dark forces" ( = gauge bosons ?) with each other

  • this kind of dark matter particles can probably interact with dark energy ( how? What is dark energy in this particular scenarios suposed to be? )

  • the authors vaguely stated the super WIMP models are some kind of extensions of supersymmetric models that lead to the "ordinary" WIMPs

From this characterization I really dont get what super WIMPs are suposed to be so my question is:

What are the underlying theoretical ideas behind these phenomenological models? Are they derived in some "top down" approach from high energy theories or is some "buttom up" extension of something like the MSSM for example applied ?

And I would appreciate a technically more accurate description of the super WIMP particles and their interactions.

asked Jun 23, 2012 in Theoretical Physics by Dilaton (4,175 points) [ revision history ]
It would help if you linked to the article or paper.

This post imported from StackExchange Physics at 2014-03-17 03:20 (UCT), posted by SE-user Mitchell Porter
@MitchellPorter Ok, I`ve added the link and the names ot the authors, but unfortunately it is in German and behind a paywall. I own only a "hard copy" of the corresponding Spektrum der Wissenschaft Dossier I`ve bought ... :-/

This post imported from StackExchange Physics at 2014-03-17 03:20 (UCT), posted by SE-user Dilaton
They are usually not top down or bottom up, but wild guesses.

This post imported from StackExchange Physics at 2014-03-17 03:20 (UCT), posted by SE-user Ron Maimon
Possibly the (assumed) supersymetric partners of the (assumed) WIMPy content of the dark matter? In all seriousness just offering up a name gives your audience nothing to get much traction from.

This post imported from StackExchange Physics at 2014-03-17 03:20 (UCT), posted by SE-user dmckee
@dmckee Yes, that in the article was not much more than the name and a very vague descripten is exactly what annoyed me too ... As I understood it the super WIMPs they are talking about should be something else than the "usual" supersymmetric WIMPs.

This post imported from StackExchange Physics at 2014-03-17 03:20 (UCT), posted by SE-user Dilaton
The English-language version is scientificamerican.com/article.cfm?id=dark-worlds

This post imported from StackExchange Physics at 2014-03-17 03:20 (UCT), posted by SE-user Mitchell Porter

1 Answer

+ 1 like - 0 dislike

I think you're being a bit hard on Scientific American. It is a popular (if slightly geeky) magazine so you wouldn't expect its articles to have all the gory details.

The best way to find info about areas like this is to search arxiv.org. For example googling for "super wimp site:arxiv.org/abs" finds http://arxiv.org/abs/0812.0432 and this looks like a good place to start.

There have been various suggestions for particles that only interact by the gravitational force. One example is the sterile neutrino.

This post imported from StackExchange Physics at 2014-03-17 03:20 (UCT), posted by SE-user John Rennie
answered Jun 24, 2012 by John Rennie (470 points) [ no revision ]

Your answer

Please use answers only to (at least partly) answer questions. To comment, discuss, or ask for clarification, leave a comment instead.
To mask links under text, please type your text, highlight it, and click the "link" button. You can then enter your link URL.
Please consult the FAQ for as to how to format your post.
This is the answer box; if you want to write a comment instead, please use the 'add comment' button.
Live preview (may slow down editor)   Preview
Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
If you are a human please identify the position of the character covered by the symbol $\varnothing$ in the following word:
p$\hbar$ysicsOv$\varnothing$rflow
Then drag the red bullet below over the corresponding character of our banner. When you drop it there, the bullet changes to green (on slow internet connections after a few seconds).
To avoid this verification in future, please log in or register.




user contributions licensed under cc by-sa 3.0 with attribution required

Your rights
...