Particle Correlations in Nuclear Physics

Jahan, Syed Afrid (2021) Particle Correlations in Nuclear Physics. Masters thesis, Indian Institute of Science, Education and Research Kolkata.

Text (MS Dissertation of Syed Afrid Jahan (15MS064)) 15MS064_Thesis_file.pdf - Submitted Version Restricted to Repository staff only Download (1MB)

Abstract

This work explains the theoretical framework of HBT effect (or alternatively, two-particle momentum correlation or particle correlations, the term commonly used for nuclear physics applications) in the context of nuclear physics. HBT effect is used to find space and time length scale in nuclear collisions (known as femtoscopy). A simple approach to link the strong interaction coupling constant and the HBT effect is reviewed. An alternative method to the common HBT experimental analysis technique: Gaussian Parametrization, is explored through a C++ code package, CorAL. From an input of particle correlation, CorAL finds the source function, a characteristic of the particle emitting source. For an ideal case of 1D correlation functions for non-interacting identical pions in a toy model, CorAL is successful in obtaining a source function. Even with increase in non-Gaussian nature of the particle density distribution of the source, CorAL extracts the source functions successfully. Finally, the possibilities and challenges of expanding the use of HBT in low energy nuclear physics such as in light nuclei collisions (especially with Halo Nuclei) is reviewed.

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