Possible Measurement of the Probability of P-States in the Ground State of 4He Nucleus

Authors

  • Yu. P. Lyakhno Institute for High-Energy Physics and Nuclear Structure Physics, National Science Center “Kharkiv Institute of Physics and Technology”

DOI:

https://doi.org/10.15407/ujpe60.04.0309

Keywords:

nuclear forces, few-body systems

Abstract

Using the experimental data on the total cross-sections of 4He(y, p)3H and 4He(y, n)3He reactions with S = 1 transitions as the base, we discuss the possibility of measuring the probability of 3P0-states in the ground state of 4He nucleus. The analysis of the experimental data has suggested the conclusion that, within the statistical error, the ratio of the cross section of the reaction in the collinear geometry to the cross section of the electrical dipole transition with the spin S = 0 at the angle of the emission of nucleons 0N = 90∘vp and vn in the range of photon energies 22 ≤ Ey ≤ 100 MeV does not depend from the photon energy. This is in agreement with the assumption that the S = 1 transitions can originate from 3P0 states of 4He nucleus. The average values of vp and vn in the mentioned photon energy range are calculated as vp = 0 .01 ± 0 .002 and vn = 0 .015 ± 0 .003 (the errors are statistical only).

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Published

2019-01-19

How to Cite

Lyakhno, Y. P. (2019). Possible Measurement of the Probability of P-States in the Ground State of 4He Nucleus. Ukrainian Journal of Physics, 60(4), 309. https://doi.org/10.15407/ujpe60.04.0309

Issue

Section

Nuclei and nuclear reactions