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تسجيل مستخدم جديدتحريك الكولوم للذرات النووية غير المستقرة عند الطاقات المتوسطة
Coulomb excitation of unstable nuclei at intermediate energies
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نحن نقوم بدراسة الانبعاث الكولومي لحالات عالية الطاقة في الاصطدامات المتوسطة ($E_{lab}sim10-500$ MeV/nucleon). ويظهر أن كسورات الانبعاثات $E1$ و $E2$ أكبر في الطاقات الأطول، بكثير أقل من 10 MeV/nucleon. وتظهر التأثيرات المتأخرة والتشوه الكولومي كلاهما مهما للطاقات منخفضة مثل 10 MeV/nucleon وحتى 500 MeV/nucleon. وتناقش التأثيرات على الدراسات في مرافق الجزيئات المتشعبة.
We investigate the Coulomb excitation of low-lying states of unstable nuclei in intermediate energy collisions ($E_{lab}sim10-500$ MeV/nucleon). It is shown that the cross sections for the $E1$ and $E2$ transitions are larger at lower energies, much less than 10 MeV/nucleon. Retardation effects and Coulomb distortion are found to be both relevant for energies as low as 10 MeV/nucleon and as high as 500 MeV/nucleon. Implications for studies at radioactive beam facilities are discussed.
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