1. History

2. See also

3. References

4. Further reading

The interacting boson model (IBM) is a model in nuclear physics in which

nucleons (protons or neutrons) pair up, essentially

acting as a single particle with boson properties, with

integral spin of 0, 2 or 4.

It is sometimes known as the Interacting boson approximation (IBA).^[1]{{rp|7}}

The IBM1/IBM-I model treats both types of nucleons the same and considers only pairs of nucleons coupled to

total angular momentum 0 and 2, called respectively, s and d bosons.

The IBM2/IBM-II model treats protons and neutrons separately.

Both models are restricted to nuclei with even numbers of protons and neutrons.^[1]{{rp|9}}

The model can be used to predict vibrational and rotational modes of non-spherical nuclei.^[1]

History

This model was invented by Akito Arima and Francesco Iachello in 1974.^[2]{{rp|6}}

See also

• Liquid drop model
• Nuclear shell model

References

• Arima, Iachello Collective nuclear states as representations of a SU(6) Group, Physical Review Letters 35, 1069–1072 (1975).
• Arima, Iachello The interacting boson model, Cambridge University Press, 1987.
• Arima, Iachello Interacting boson model of collective states, Part 1 (the vibrational limit) Annals of Physics 99, 253-317 (1976), Part 2 (the rotational limit) ibid. 111, 201-238 (1978), Part 3 (the transition from SU (5) to SU (3)), ibid. 115, 325-366 (1978), Part 4 (the O(6) limit) ibid. 123, 468-492 (1979).
• Arima, Iachello The Interacting Boson Model, Annual Review of Nuclear and Particle Science 31, 75 (1981).
• Talmi [https://www.amazon.co.uk/Simple-Models-Complex-Nuclei-Contemporary/dp/3718605503 Simple Models of Complex Nuclei: The Shell Model and the Interacting Boson Model (1993) Harwood Academic Publishers]

Further reading

• [https://link.springer.com/article/10.1007/s40094-015-0170-z Evolution of shapes in even–even nuclei using the standard interacting boson model]

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