Interacting boson model

Nuclear physics

* Nucleus
* Nucleons
* p
* n
* Nuclear matter
* Nuclear force
* Nuclear structure
* Nuclear reaction

Models of the nucleus

* Liquid drop
* Nuclear shell model
* Interacting boson model
* Ab initio

Nuclides' classification

* Isotopes – equal Z

* Isobars – equal A

* Isotones – equal N

* Isodiaphers – equal N − Z

* Isomers – equal all the above

* Mirror nuclei – Z ↔ N

* Stable
* Magic
* Even/odd
* Halo
* Borromean

Nuclear stability

* Binding energy
* p–n ratio
* Drip line
* Island of stability
* Valley of stability
* Stable nuclide

Radioactive decay

* Alpha α
* Beta β
* 2β
* 0v
* β+
* K/L capture
* Isomeric
* Gamma γ
* Internal conversion
* Spontaneous fission
* Cluster decay
* Neutron emission
* Proton emission

* Decay energy
* Decay chain
* Decay product
* Radiogenic nuclide

Nuclear fission

* Spontaneous
* Products
* pair breaking
* Photofission

Capturing processes

* electron
* 2×
* neutron
* s
* r
* proton
* p
* rp

High-energy processes

* Spallation
* by cosmic ray
* Photodisintegration

Nucleosynthesis and
nuclear astrophysics

* Nuclear fusion

* Processes:
* Stellar
* Big Bang
* Supernova

* Nuclides:
* Primordial
* Cosmogenic
* Artificial

High-energy nuclear physics

* Quark–gluon plasma
* RHIC
* LHC

Scientists

* Alvarez
* Becquerel
* Bethe
* A. Bohr
* N. Bohr
* Chadwick
* Cockcroft
* Ir. Curie
* Fr. Curie
* Pi. Curie
* Skłodowska-Curie
* Davisson
* Fermi
* Hahn
* Jensen
* Lawrence
* Mayer
* Meitner
* Oliphant
* Oppenheimer
* Proca
* Purcell
* Rabi
* Rutherford
* Soddy
* Strassmann
* Świątecki
* Szilárd
* Teller
* Thomson
* Walton
* Wigner

* Physics portal
* Category

* v
* t
* e

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 either 2 (d-boson) or 0 (s-boson). They correspond to a quintuplet and singlet, i.e. 6 states.

It is sometimes known as the Interacting boson approximation (IBA).[1]: 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]: 9

Regions of differently shaped nuclei, as predicted by the Interacting Boson Approximation[2]

The model can be used to predict vibrational and rotational modes of non-spherical nuclei.[2]

## History

[edit]

This model was invented by Akito Arima and Francesco Iachello in 1974.[1]: 6 while working at the Kernfysisch Versneller Instituut(KVI) in Groningen, Netherlands. KVI is now property of Universitair Medisch Centrum Groningen (https://umcgresearch.org/).

## See also

[edit]

* Liquid drop model
* Nuclear shell model

## References

[edit]

* Arima, A.; Iachello, F. (1975-10-20). "Collective Nuclear States as Representations of a SU(6) Group". Physical Review Letters. 35 (16). American Physical Society (APS): 1069–1072\. Bibcode:1975PhRvL..35.1069A. doi:10.1103/physrevlett.35.1069. ISSN 0031-9007.
* Iachello, F; Arima, A. (1987). The Interacting Boson Model. Cambridge: Cambridge University Press. ISBN 978-0-511-89551-7. OCLC 776970502.
* Arima, A; Iachello, F (1976). "Interacting boson model of collective states I. The vibrational limit". Annals of Physics. 99 (2). Elsevier BV: 253–317\. Bibcode:1976AnPhy..99..253A. doi:10.1016/0003-4916(76)90097-x. ISSN 0003-4916.
* Arima, A; Iachello, F (1978). "Interacting boson model of collective nuclear states II. The rotational limit". Annals of Physics. 111 (1). Elsevier BV: 201–238\. Bibcode:1978AnPhy.111..201A. doi:10.1016/0003-4916(78)90228-2. ISSN 0003-4916.
* Scholten, O; Iachello, F; Arima, A (1978). "Interacting boson model of collective nuclear states III. The transition from SU(5) to SU(3)". Annals of Physics. 115 (2). Elsevier BV: 325–366\. Bibcode:1978AnPhy.115..325S. doi:10.1016/0003-4916(78)90159-8. ISSN 0003-4916.
* Arima, A; Iachello, F (1979). "Interacting boson model of collective nuclear states IV. The O(6) limit". Annals of Physics. 123 (2). Elsevier BV: 468–492\. Bibcode:1979AnPhy.123..468A. doi:10.1016/0003-4916(79)90347-6. ISSN 0003-4916.
* Arima, A; Iachello, F (1981). "The Interacting Boson Model". Annual Review of Nuclear and Particle Science. 31 (1). Annual Reviews: 75–105\. Bibcode:1981ARNPS..31...75A. doi:10.1146/annurev.ns.31.120181.000451. ISSN 0163-8998.
* Talmi, Igal (1993). Simple models of complex nuclei : the shell model and interacting boson model. Chur, Switzerland Langhorne, Pa., U.S.A: Harwood Academic Publishers. ISBN 978-3-7186-0550-7. OCLC 25706648.

1. ^ a b c Walter Pfeifer (1998). An Introduction to the Interacting Boson Model of the Atomic Nucleus (PDF). ISBN 978-3-7281-2520-0.
2. ^ a b Kratz, J. V. (5 September 2011). The Impact of Superheavy Elements on the Chemical and Physical Sciences (PDF). 4th International Conference on the Chemistry and Physics of the Transactinide Elements. Retrieved 27 August 2013.

## Further reading

[edit]

* Evolution of shapes in even–even nuclei using the standard interacting boson model

This nuclear physics or atomic physics–related article is a stub. You can help Wikipedia by expanding it.

|

* v
* t
* e

*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template