A Fast Universal Kinematic Fitting Code for Low-Energy Nuclear Physics: FUNKI_FIT

SMITH, Robin and BISHOP, Jack (2019). A Fast Universal Kinematic Fitting Code for Low-Energy Nuclear Physics: FUNKI_FIT. Physics, 1 (3), 375-391.

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Official URL: https://www.mdpi.com/2624-8174/1/3/27
Open Access URL: https://www.mdpi.com/2624-8174/1/3/27 (Published)
Link to published version:: https://doi.org/10.3390/physics1030027


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 FUNKI_FIT kinematic fitting code have been developed and published open access. The FUNKI_FIT 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.

Item Type: Article
Identification Number: https://doi.org/10.3390/physics1030027
Page Range: 375-391
SWORD Depositor: Symplectic Elements
Depositing User: Symplectic Elements
Date Deposited: 25 Nov 2019 11:28
Last Modified: 18 Mar 2021 03:09
URI: https://shura.shu.ac.uk/id/eprint/25484

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