Extracting the Bilinear Coupling

[AForster]

Hi All

I would like SPheno to print out the value of the bilinear coupling B_0 (that appears in the scalar potential) in the .spc output file at the input scale. I take it that B_0 must be known by SPheno internally as it is an important running parameter. I have looked through the various SPheno manuals but can’t find a way to achieve this.

Any help/ advise would be greatly appreciated!

Thanks,


Adam

[MDGoodsell]

Dear Adam,

SPheno doesn't store the value at the high scale. So you will have to hack the code. In SPheno itself (as opposed to SARAH-generated spheno), you need to add a line to store the value in a global variable in the routine boundaryHS2 in the file SugraRuns. For SARAH-SPheno, you need boundaryHS in the Boundaries_<model name>.f90 file.

In both cases, to then write the value to your .spc file you need to add a corresponding line in InputOutput.f90

[AForster]

[quote="MDGoodsell"] you need to add a line to store the value in a global variable in the routine boundaryHS2 in the file SugraRuns.

Hi MDGoodsell

Thanks so much for your reply!

Do you have any idea what the line I should add should be. My Fortran skills are pretty non-existent!

Thanks


Adam