Nilsson Model excitations

In summary, there are rotational bands in a nucleus that are based on quasiproton excitations, which behave like a single proton. It is believed that these bands are built on different Nilsson Model levels, but it is unclear whether the bandheads occur due to different deformations of the nucleus or if individual nucleons change levels. It is also noted that for a nucleus with an odd number of nucleons, the lowest non-collective excitations are single-quasiparticle states. Further research is needed to clarify this information.
  • #1
eXorikos
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A nucleus has several rotational bands built on different Nilsson Model levels. Do these bandheads occur for different deformation of the nucleus or does an individual nucleon change level?

My educated guess is that it's the deformation that changes, but I need to be sure. :)
 
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  • #2
I read in a paper that these rotational bands in the nucleus I'm studying are based on quasiproton excitations. So this means it's a collective excitation that behaves like a single proton.

However when I look into a different paper, I read this.
For a system with an odd number of nucleons the lowest non-collective excitations are single-quasiparticle states.

Now I'm confused.
 

1. What is the Nilsson Model for excitations?

The Nilsson Model is a theoretical framework used in nuclear physics to explain the behavior of atomic nuclei. It describes the collective motion of nucleons (protons and neutrons) in the nucleus and their interactions with each other.

2. How does the Nilsson Model explain excitations?

The Nilsson Model explains excitations as the result of nucleons moving to higher energy levels within the nucleus, similar to electrons in an atom. These excitations can occur due to external forces, such as collisions or electromagnetic radiation, or due to the intrinsic properties of the nucleus itself.

3. What factors influence the excitations predicted by the Nilsson Model?

The Nilsson Model takes into account several factors that can influence excitations, including the shape of the nucleus, the number of nucleons, and the interactions between nucleons. These factors can lead to different energy levels and excitation patterns.

4. Can the Nilsson Model accurately predict excitations in all types of nuclei?

The Nilsson Model is most accurate for spherical or near-spherical nuclei and can accurately predict excitations in these types of nuclei. However, for deformed nuclei, other models may be more suitable.

5. How does the Nilsson Model compare to other models for excitations?

The Nilsson Model is one of several theoretical models used to explain excitations in atomic nuclei. It has been successful in predicting many observed nuclear properties but also has limitations, particularly for highly excited nuclei. Other models, such as the Liquid Drop Model and the Shell Model, may be more appropriate for certain types of nuclei or excitation energies.

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