Two-particle photodisintegration of the 3He and 3H nuclei in a relativistic approach with a strictly conserved EM current

被引：2
作者：
Kasatkin Y.A. [1 ]
Klepikov V.P. [1 ]
Kuznietsov P.E. [1 ]
机构：
[1] Institute of Electrophysics and Radiation Technologies, National Academy of Sciences of Ukraine, Kharkiv
来源：
Physics of Particles and Nuclei Letters | 2015年 / 12卷 / 4期
关键词：
Differential Cross Section; Nucleus Letter; Vertex Function; Escape Angle; Nonlocal Field;
D O I：
10.1134/S1547477115040172
中图分类号：
学科分类号：
摘要：
A method for constructing the covariant amplitude of two-particle photodisintegration of a nonlocal matter field while fulfilling the gauge invariance requirement, which follows from the property of inseparability of the electric charge from mass and leads to the coordination of actions of the four-momentum and the charge conservations laws, is proposed. It is shown how one may introduce a photon into the outer ends of a three-point diagram and a strongly connected vertex. The proposed approach is used to perform calculations for the case of disintegration of the 3He nucleus. The results are compared with the experimental data. The behavior of the energy dependence of Σ asymmetry for the γ3H → nd process at neutron escape angle θn = 90° is predicted. © 2015, Pleiades Publishing, Ltd.
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页码：481 / 493
页数：12
相关论文
共 15 条
[1]  
Govaerts J., Lucio J.L., Martinez A., Pestieau J., Low energy theorem and photodisintegration of light nuclei, Nucl. Phys. A, 368, pp. 409-428, (1981)
[2]  
Schiavilla R., Pandharipande V.R., Wiringa R., Momentum distributions in A=3 and 4 nuclei, Nucl. Phys. A, 449, pp. 219-242, (1986)
[3]  
Efimov G.V., Problems of Quantum Theory of Nonlocal Iteractions, (1985)
[4]  
Slavnov A.A., Faddeev L.D., Gauge Fields: An Introduction to Quantum Theory, (1988)
[5]  
Kasatkin Y.A., Local U(1) gauge invariance and photodisintegration of strongly bound systems, Phys. Part. Nucl. Lett., 1, (2004)
[6]  
Kasatkin Y.A., The geometrical aspect of the gauge fields and the possibility of a general description of local and nonlocal interaction in QED, Phys. Part. Nucl. Lett., 6, (2009)
[7]  
Kasatkin Y.A., Additional requirements for consistent description of nonlocal interactions in QED, Phys. Part. Nucl. Lett., 7, (2010)
[8]  
Kasatkin Y.A., Korzh A.P., Additional requirements for description of nonlocal interactions in QED, Visn. KhNU, Ser. Fiz. Yadra, Chastinki, Polya, No. 880 (4), pp. 31-44, (2009)
[9]  
Korchin A.Y., van Neck D., Waroquier M., Scholten O., Dieperink A.E.L., Production of e<sup>+</sup> e<sup>−</sup> pairs in proton deuteron capture <sup>3</sup>He, Phys. Lett. B, 441, pp. 17-26, (1998)
[10]  
O'Fallon N.M., Koester L.J., Smith J.H., Two-body photodisintegration of He<sup>3</sup> between 40 and 150 MeV, Phys. Rev. C, 5, pp. 1926-1938, (1972)
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