Neutrino yield

What do we expect to look for

Same script nu_yield.C as in the SHiP original study.

First study, mass 1 ton, size 40 x 40 square cm

Then, moved to mass 4.5 ton, size 40 x 80 square cm

Options under study

Checking different neutrino sources

What are the sources?

3 different files:

  • no charm production, option 0;

  • only charm production, option 1;

  • with charm production, option 2 (ideally, should be the sum of the above);

If no option is provided, the total one (option 2) is used.

The code workflow is:

  • Create a link to /eos/experiment/ship/data/Mbias/background-prod-2018/pythia8_Geant4_1.0_withCharm_nu.root and to /eos/user/a/aiuliano/public/sims_FairShip/GenieEvents_SHIP/SplinesTungstenSHIP/nu_xsec_TungstenSHIP.root

  • Create an empty folder, called plots_2;

  • Launch generate_neutrinos() or generate_neutrinos(2);

  • Launch nu_yield() or nu_yield(2);

  • Normalize neutrino rates, initially 5e+13, to 2e+20 pot per target.

  • Backup the output to EOS if needed.

To do: check also the 10 GeV file, set links automatically in script

With respect to detector size

With the same mass, what changes with different transverse sizes?

Creating a folder for each configuration

With respect to detector angular position

Changing TX offset, telling us center position

Again, a folder for each configuration

Created a separate nu_yield_angles.C to check different angles

Neutrino Simulation

Since GENIE changed, I would need to redo the splines.

For now, still using old splines, and regenerating neutrino interactions with old GENIE.

After SHiP approval, modernization should be performed (See Oliver discussion)

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