[Mesa-users] Neutrino Interactions

[Francis Timmes]

hi liam,

currently, mesa does not have the necessary additional linkages between isotopes or 
the neutrino reaction rate expressions/tables to readily allow explorations of the nu-process.
this would be a new capability for the developers to consider adding in the future.

fxt




> On Jun 12, 2018, at 7:52 AM, Liam Kroll <liam.kroll at gmail.com> wrote:
> 
> Hi all,
> Josiah, thank you for the clarification.
> Sean, that's excellent, I will check it out.
> Francis, I did have nucleosynthesis in mind. I was hoping to play around with the rates of the previously mentioned reactions and see how that effects the nucleosynthesis in neutrino driven winds. I have made a core-collapse supernova using the mass cut and energy injection method based on the test_suite example and instrument papers.
> 
> Any ideas on if this is something that is feasible to implement myself or a fool's errand? 
> 
> Thanks again for all the input,
> Liam
> 
> On Mon, Jun 11, 2018 at 7:38 PM, Francis Timmes <fxt44 at mac.com> wrote:
> or, did you have something like neutrino nucleosynthesis in mind?
> the intended application of p + \bar{\nu} and n + \nu is not clear from your message ...
> 
> fxt
> 
> 
> 
> > On Jun 11, 2018, at 3:46 PM, Sean M. Couch via Mesa-users <mesa-users at lists.mesastar.org> wrote:
> > 
> > Hi Liam,
> > 
> > If its a 1D open-source code written in Fortran that can model neutrino-matter interactions you’re looking for, then let me recommend GR1D by Evan O’Connor: https://github.com/evanoconnor/GR1D. 
> > 
> > Cheers,
> > Sean
> > 
> > 
> > ----------------------------------------------------------------------------------------------------------
> > Sean M. Couch
> > Assistant Professor
> > Department of Physics and Astronomy
> > Department of Computational Mathematics, Science, and Engineering
> > National Superconducting Cyclotron Laboratory/Facility for Rare Isotope Beams
> > Michigan State University
> > 567 Wilson Rd, 3250 BPS
> > East Lansing, MI  48824
> > (517) 884-5035    ——    couch at pa.msu.edu    ——    www.pa.msu.edu/~couch
> 
> >> 
> >> On Jun 11, 2018, 5:59 PM -0400, Mesa-users <mesa-users at lists.mesastar.org>, wrote:
> >> Hi Liam,
> >> 
> >> MESA assumes neutrinos free-stream from the star.  It does not have the capabilities to model neutrino matter interactions.
> >> 
> >> Josiah
> >> 
> >> 
> >>> Hi MESA users,
> >>> 
> >>> I'm currently looking into doing some work on core-collapse supernovae. I am wondering if the current release of MESA (r10398) includes charged-current neutrino interactions, especially the reactions: p+mu-bar=>n+e^+ and n+mu=>p+e^-. I've looked at the reaction lists and given the instrument papers a quick skim but can't seem to find what I am looking for. Perhaps someone has done something like this in the past? Or better yet I am not seeing the reactions and it's just a matter of including them in my net. If none of the above, maybe someone could point me in the direction of documentation on how to create custom reactions. Any help would be greatly appreciated.
> >>> 
> >>> Thanks, Liam
>