Simulations and analysis tools for charge-exchange $(d,{}^2\text{He})$ reactions in inverse kinematics with the AT-TPC

Abstract

Charge-exchange $(d,{}^2\text{He})$ reactions in inverse kinematics at intermediate energies are a very promising method to investigate the Gamow-Teller transition strength in unstable nuclei. A simulation and analysis software based on the $\mathrm{ATTPCROOT}$ package was developed to study these type of reactions with the active-target time projection chamber (AT-TPC). The simulation routines provide a realistic detector response that can be used to understand and benchmark experimental data. Analysis tools and correction routines can be developed and tested from simulations in $\mathrm{ATTPCROOT}$, because they are processed in the same way as the real data. In particular, we study the feasibility of using coincidences with beam-like particles to unambiguously identify the $(d,{}^2\text{He})$ reaction channel, and to develop a kinematic fitting routine for future applications. More technically, the impact of space-charge effects in the track reconstruction, and a possible correction method are investigated in detail. This analysis and simulation package constitutes an essential part of the software development for the fast-beams program with the AT-TPC.

References in corpus (1)

• Tracking Algorithms for TPCs using Consensus-Based Robust Estimators

Cited by in corpus (1)

• ${\beta }^{+}$ Gamow-Teller strengths from unstable ${}^{14}$O via the $(d,{}^2\text{He})$ reaction in inverse kinematics