Pukhov Minicourse on Dark Matter Physics with MicrOMEGAs

October 15-17, 2019

ICTP-SAIFR, São Paulo, Brazil

Lecturer: Alexander Pukhov (Lomonosov Moscow State University, Russia)

Title: Dark Matter Physics with MicrOMEGAs

Location: São Paulo, Brazil


Dates and Times:

  • October 15, 2019 – Tuesday, 14:00 – 16:00 IFT-UNESP Auditorium (4th floor)
  • October 17, 2019 – Thursday, 14:00 – 16:00 Room 1 (3rd floor)
  • October 18, 2019 – Friday, 14:00 – 16:00 Room 1 (3rd floor)

Instructions: please check the official micrOMEGAs site: http://lapth.cnrs.fr/micromegas/

One can find “Download and Install” in left column and   after that  click DOWNLOAD in  right  part. The received  file should be micromegas_5.0.8.tgz .I propose to  load http://theory.sinp.msu.ru/~pukhov/micromegas_5.0.20.tgz . It contains new module for direct detection.  All information about micrOMEGAs including installation and usage is presented in micromegas_5.0.X/man/manual_5.0.pdf


Lecture 1

Introduction (PDF)

1) Main problems solving by micrOMEGAs
2) General characteristics
3) Downloading of micrOMEGAs package
4) Structure of the package and scheme of calls
5) Structure of main program

CalcHEP-micrOMEGAs interface:
1) model specification: Variables, Constraints, Particle, Vertices
2) calculation of scattering processes and decay widths in CalcHEP
3) access to model variables and paricle characteristics in micrOMEGAs
4) How micrOMEGAs calls CalcHEP. Blind mode, shared libraries

Lecture 2
Calculation of relic density in Freeze out scenario
1) Discrete symmetry and DM stability. Even and Odd particles
2) thermodynamics of Universe
3) Freeze out scenario
4) Co-annihilation
5 Contribution of different channels to formation of relic density
6) Models with 2 DM particles

Calculation of relic density in Freeze-in scenario
1) General conception
2) Influence of quantum statistics
3) Processes with t-channel singularities.
4) micrOMEGAs routines for Freeze-in
5) dependence of particle masses and widths on temperature.

Lecture 3

Direct detection limits in micrOMEGAs
1) DM velocity distribution
2) Spin-dependent and Spin-independent basic amplitude
3) Calculation of low energy DM nucleon amplitudes
4) From nucleon to nucleus
5) Comparison with experiments Xenon1T, PICO, DarkSide, CRESST

Indirect detection
1) collision of DM particles in Milky Way hallo. Photon signal.
2) propagation if charged particles, e+ and p- signals.

Numerical and graphics tools implemented in micrOMEGAs
1) solution of differential equations, Bessel function, FeldmanCousins, maxGap,
2) plots: export to Root, Pyton, Gnuplogt

Implementation of new models in CalcHEP/micrOMEGAs
1) LanHEP program for model generation
3) Adding a new model to micrOMMEGAs

A “Certificate of Attendance” will be offered by the IFT Graduate Program to those participants attending the lectures.



Pukhov Minicourse on Dark Matter Physics with MicrOMEGAs


There will be no application form for this activity and everyone is welcome to participate. For more information, send email to secretary@ictp-saifr.org.