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New measurements and phase shift analysis of p^16O elastic scattering at astrophysical energies

Chinese Physics C 2017年第1期41卷 77-86页

作者： Sergey Dubovichenko nassurlla Burtebayev Albert Dzhazairov-Kakhramanov Denis Zazulin Zhambul Kerimkulov marzhan nassurlla Chingis Omarov Alesya Tkachenko Tatyana Shmygaleva Stanislaw Kliczewski Turlan Sadykov Fesenkov Astrophysical Institute "NCSRT"ASC MID Republic of Kazakhstan Institute of Nuclear Physics ME RK Almaty Republic of Kazakhstan Kazakh National University al-Farabi Almaty Republic of Kazakhstan H. Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences Cracow Poland Institute of Physics and Technology Almaty Republic of Kazakhstan

The results of new experimental measurements of p^16O elastic scattering in the energy range of 0.6–1.0MeV at angles of 40°–160° are given. Phase shift analysis of p^（16）O elastic scattering was made using these and other experimental data on differential cross sections in excitation functions and angular distributions at energies of up to 2.5 Me V.

关键词： astrophysical energies phase shift analysis angular distributions cluster model.

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New measurements and reanalysis of^14N elastic scattering on^10B target

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Chinese Physics C 2020年第10期44卷 115-123页

作者： marzhan nassurlla N.Burtebayev T.Kh.Sadykov I.Boztosun N.Amangeldi D.Alimov Zh.Kerimkulov J.Burtebayeva Maulen nassurlla A.Kurakhmedov S.B.Sakuta Mesut Karakoc Awad A.Ibraheem K.W.Kemper Sh.Hamada Institute of Nuclear Physics AlmatyKazakhstan Satbayev University Institute of physics and technology050032AlmatyKazakhstan Al-Farabi Kazakh National University AlmatyKazakhstan Department of Physics Akdeniz UniversityAntalyaTurkey L.N.Gumilyov Eurasian National University AstanaKazakhstan National Research Center“Kurchatov Institute” MoscowRussia Physics Department King Khalid UniversityAbhaSaudi Arabia Physics Department Al-Azhar UniversityAssiut BranchAssiut 71524Egypt Department of Physics Florida State UniversityTallahasseeFlorida 32306USA Faculty of Science Tanta UniversityTantaEgypt

The angular distributions of elastic scattering of^14N ions on^10B targets have been measured at incident beam energies of 21.0 and 24.5 MeV.Angular distributions at higher energies 38–94.0 MeV(previously measured)were also included in the analysis.All data were analyzed within the framework of the optical model and the distorted waves Born approximation method.The observed rise in cross sections at large angles was interpreted as a possible contribution of theα-cluster exchange mechanism.Spectroscopic amplitudes SA2 and SA4 for the configuration^14N→^10B+αwere extracted.Their average values are 0.58±0.10 and 0.81±0.12 for SA2 and SA4,respectively,suggesting that the exchange mechanism is a major component of the elastic scattering for this system.The energy dependence of the depths for the real and imaginary potentials was found.

关键词： elastic scattering optical model potential DWBA method spectroscopic amplitudes

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