Speaker
Description
The QGP(Quark-Gluon Plasma) and the QCD phase transition from/to the hadronic phase are one of the hottest topics in high energy nuclear physics. In particular, the dense matter study via nuclei collisions at $\sqrt{s_\mathrm{NN}} \simeq 5 - 10 \, \mathrm{GeV}$ is expected to bring more detailed information on the 1st order phase transition, whereas the hot matter study through nuclei collisions at LHC(Large Hadron Collider) energies is actively being performed under the assumption of the higher order phase transition. Even though several experiments scanning collision energies in the range $\sqrt{s_\mathrm{NN}} \simeq 5 - 200 \, \mathrm{GeV}$ search for signatures of the critical point in the QCD phase diagram, the constraints from the inverse relation between the collision energy (T) and the baryonic chemical potential ($\mathrm{\mu_{B}}$) bring the experimental limit of the binary collisions along the phase boundary.
As a new alternative experimental method to reach the higher $\mathrm{\mu_{B}}$ region at the same collision energy, a feasibility study of the multi-particle collisions is introduced with using three radioactive alpha sources and GEANT simulations, which never describe interactions between dying particles. This poster presents a comparison of experimental results with simulation outputs and discusses methods to distinguish multi-particle ($n > 2$) interaction effects from binary-collision contributions.
