nptool issueshttps://gitlab.in2p3.fr/np/nptool/-/issues2024-02-01T13:37:04+01:00https://gitlab.in2p3.fr/np/nptool/-/issues/71Energy correlation issue of breakup fragments of a projectile nucleus using n...2024-02-01T13:37:04+01:00Subhankar MaityEnergy correlation issue of breakup fragments of a projectile nucleus using nptoolHi Adrien! Hope you are doing well.
I am carrying out the resonant breakup of 7Be on the 12C target i.e 7Be + 12C -> 3He + 4He + 12C at E = 35 MeV using the two step breakup reaction file. I am using a detector setup consisting of five...Hi Adrien! Hope you are doing well.
I am carrying out the resonant breakup of 7Be on the 12C target i.e 7Be + 12C -> 3He + 4He + 12C at E = 35 MeV using the two step breakup reaction file. I am using a detector setup consisting of five DSSDs in a pentagon geometry backed by unsegmented pads (SSSDs). But I am again facing a strange issue with SSSDs in NPTool while doing the coincidence measurements of breakup fragments. We can expect a negative correlation between the energies of the breakup fragments according to the conservation of energy. But I am getting a positive slope when I plot the energies of the two fragments. I looked into this issue and found out that probably SSSDs are causing the problem. Just to verify quickly, I replaced the SSSDs with W1s of similar configuration (thickness, segmentation etc.). And I got a satisfactory output in the energy correlation plot.
Could you please comment on this issue? Is there any way to fix this strange problem with SSSDs so that I can exactly imitate our experimental detector setup in simulation ? Please reply at your earliest convenience. Thank you in advance.Adrien Mattamatta@lpccaen.in2p3.frAdrien Mattamatta@lpccaen.in2p3.fr