2002/08/22 by A. M. Mosallem, Ahmed M. Mosallem, Mosallem, A. M. +3
Earth and Planetary Sciences · Environmental Science · Physics and Astronomy · #FOS: Physical sciences #High-pressure geophysics and materials #Methane Hydrates and Related Phenomena #Nuclear Theory (nucl-th) #Quantum, superfluid, helium dynamics #nucl-th
paper · pdf · doi:10.48550/arxiv.nucl-th/0208043
13 pages, 5 eps figures
arxiv created 2002/08/22 · openalex publication_date 2002/08/22 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The He-4 d elastic scattering at the momentum of 19.8 GeV/c is analyzed in the framework of the Glauber theory. The scattering amplitude was evaluated using different sets of values of the nucleon-nucleon amplitude parameters and the He-4 density function as a superposition of the Gaussian functions. It is shown that it is impossible to describe simultaneously the pHe-4 and dHe-4 elastic scattering cross sections using the same set of the NN-amplitude parameters. Inclusion of the twelve quark bag admixture to the ground state of the He-4 nucleus in the calculations allows one to reproduce the experimental data quite well. It is shown that the admixture manifests itself in the dHe-4 elastic scattering in all region of the momentum transfer. At small t the effect can be at the level of ~ 10 %. At large t it can be ~ 30 %.