Giant Dipole Resonance â tool for hot nuclei studies Giant Dipole ...
Giant Dipole Resonance â tool for hot nuclei studies Giant Dipole ...
Giant Dipole Resonance â tool for hot nuclei studies Giant Dipole ...
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GDR lineshape – de<strong>for</strong>med nucleus<br />
superposition<br />
of two Lorentzian function<br />
σ ( E<br />
γ<br />
σ ( E<br />
k<br />
) = σ ( E<br />
γ<br />
) =<br />
1<br />
( E<br />
2<br />
γ<br />
γ<br />
) + σ ( E<br />
σ Γ<br />
− E<br />
2<br />
2<br />
0 k<br />
2 2<br />
k<br />
)<br />
E<br />
2<br />
γ<br />
γ<br />
+ Γ<br />
Hill-Wheeler parameterization<br />
E<br />
E<br />
k<br />
= E<br />
GDR<br />
GDR<br />
R<br />
R<br />
≈ 79A<br />
k<br />
1<br />
−<br />
3<br />
= E<br />
GDR<br />
),<br />
2<br />
k<br />
E<br />
⎡<br />
exp⎢−<br />
⎣<br />
2<br />
γ<br />
5 2πk<br />
⎤<br />
β cos( γ + ) ⎥,<br />
4π<br />
3 ⎦<br />
quadrupole de<strong>for</strong>mation parameter β<br />
β =<br />
E<br />
4π<br />
E<br />
5 E<br />
0.5<br />
E<br />
2<br />
1<br />
2<br />
1<br />
−1<br />
+ 0.87<br />
Maria Kmiecik<br />
International Workshop on Acceleration and Applications of Heavy Ions, Warszawa 2011