2024/03/28 by Anil Khachi, Shikha Awasthi, Khachi, Anil +5
Engineering · Physics and Astronomy · #FOS: Physical sciences #Microwave Imaging and Scattering Analysis #Nuclear Theory (nucl-th) #Random lasers and scattering media #Terahertz technology and applications
paper · pdf · doi:10.48550/arxiv.2403.19173
openalex publication_date 2024/03/28 · openalex created_date 2024/03/30 · openalex updated_date 2026/07/28
An algorithm^\refFig1 has been developed with the purpose of obtaining inverse potentials, where the Riccati-type non-linear differential equation, also called phase equation, has been kept in tandem with the Variational Monte Carlo method. The optimization of Gaussian function parameters is achieved such that the experimental phase shifts are reproduced. The obtained SPS for various ell channels has been compared with experimental ones with mean absolute percentage error (MAPE) as a measure. The model parameters have been optimised by suitable optimisation technique by looking for minimum value of MAPE. The results for ℓ=0+, 2+ and 4+ partial waves have been obtained, to match with experimental SPS, with MAPE values of 2.9, 4.6 and 6.2 respectively for data up to 23 MeV, while for higher states 6+, 8+ and 10+ has MAPE of 3.2, 4.5 and 5.9 respectively for data from 53-120 MeV. On extrapolation for data in range Eℓ ab. = 23-120 MeV, using the optimised parameters, the SPS are found to be in close agreement with experimental ones for the first three channels.