2019/11/22 by R. Smith, Smith, R., J. Bishop +1
Physics and Astronomy · #FOS: Physical sciences #High-Energy Particle Collisions Research #Instrumentation and Detectors (physics.ins-det) #Nuclear Experiment (nucl-ex) #Particle Detector Development and Performance #Particle physics theoretical and experimental studies #nucl-ex #physics.ins-det
paper · pdf · doi:10.48550/arxiv.1911.10200
arxiv created 2019/11/22 · openalex publication_date 2019/11/22 · arxiv updated 2019/11/26 · openalex created_date 2019/12/05 · openalex updated_date 2026/07/28
We present an open source kinematic fitting routine designed for low-energy nuclear physics applications. Although kinematic fitting is commonly used in high-energy particle physics, it is rarely used in low-energy nuclear physics, despite its effectiveness. A FORTRAN and ROOT C++ version of the FUNKIFIT kinematic fitting code have been developed and published open access. The FUNKIFIT code is universal in the sense that the constraint equations can be easily modified to suit different experimental set-ups and reactions. Two case studies for the use of this code, utilising experimental and Monte-Carlo data, are presented: (1) charged-particle spectroscopy using silicon-strip detectors; (2) charged-particle spectroscopy using active target detectors. The kinematic fitting routine provides an improvement in resolution in both cases, demonstrating, for the first time, the applicability of kinematic fitting across a range of nuclear physics applications. The ROOT macro has been developed in order to easily apply this technique in standard data analysis routines used by the nuclear physics community.