CalcHEP

micromegas giving negative relic density

Asked by PARTHA KUMAR PAUL

I am getting -1 relic density and xf=0 in micromegas. I have tried changing the parameters, still I am getting the same error. It says , Step size too small in routine RKQC
problem in solving diff.equation
Xf=0.00e+00 Omega=-1.00e+00

How to solve this problem?

The model is showing no error in calchep.

Question information

Language:
English Edit question
Status:
Answered
For:
CalcHEP Edit question
Assignee:
No assignee Edit question
Last query:
Last reply:
Revision history for this message
Alexander Pukhov (pukhov) said : 		#1

Send  your model and data point to me

<email address hidden>

Best

   Alexander Pukhov

On 8/10/23 14:45, PARTHA KUMAR PAUL wrote:
> New question #707598 on CalcHEP:
> https://answers.launchpad.net/calchep/+question/707598
>
> I am getting -1 relic density and xf=0 in micromegas. I have tried changing the parameters, still I am getting the same error. It says , Step size too small in routine RKQC
> problem in solving diff.equation
> Xf=0.00e+00 Omega=-1.00e+00
>
> How to solve this problem?
>
> The model is showing no error in calchep.
>

Can you help with this problem?

Provide an answer of your own, or ask PARTHA KUMAR PAUL for more information if necessary.

To post a message you must log in.