2002/05/14 by A. M. Mosallem, Ahmed M. Mosallem, Mosallem, A. M. +3
Engineering · Physics and Astronomy · #FOS: Physical sciences #Nuclear Theory (nucl-th) #Quantum Chromodynamics and Particle Interactions #Quantum, superfluid, helium dynamics #Superconducting Materials and Applications #nucl-th
paper · pdf · doi:10.48550/arxiv.nucl-th/0205039
15 pages,4 figures
arxiv created 2002/05/14 · openalex publication_date 2002/05/14 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The p4He elastic scattering at the energy range from 0.695 to 393 GeV is analyzed in the framework of the Glauber theory. The Glauber amplitudes were evaluated using isospin-averaged nucleon-nucleon amplitudes and the 4He wave function as a superposition of the Gaussian functions. The values of the calculated differential cross sections usually exceed the experimental ones. In order to overcome the discrepancy, it is assumed following to the paper by L.G. Dakno and N.N. Nikolaev (Nucl. Phys. \bf A436 (1985) 653) that the ground state wave function of 4He has an admixture of a twelve quark bag. Neglecting all transition amplitudes, the proton - 12q bag scattering amplitude was chosen in a simple gaussian form. The inclusion of the 12q bag leads to decreasing the p4He differential cross section and to a shift of the dip position to a large values of t what is needed for a successful description of the experimental data. While fitting the data it is found that the weight of the 12q bag state in the ground state of the 4He nucleus is ∼ 10.5%, σtotp-12q∼ 34 mb, and the slope parameter of the p-12q bag elastic scattering is ∼ 23 (GeV/c)-2. Inelastic shadowing is not taken into account at the calculations.