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Isoscalar

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In particle physics, isoscalar refers to the scalar transformation of a particle or field under the SU(2) group of isospin.[1] Isoscalars are a singlet state, with total isospin 0 and the third component of isospin 0, much like a singlet state in a 2-particle addition of spin. Mesons which have all flavor quantum numbers equal to zero, are known as isoscalars.

See also

References

  1. ^ Bracco, A.; Lanza, E. G.; Tamii, A. (1 May 2019). "Isoscalar and isovector dipole excitations: Nuclear properties from low-lying states and from the isovector giant dipole resonance". Progress in Particle and Nuclear Physics. 106: 360–433. doi:10.1016/j.ppnp.2019.02.001. ISSN 0146-6410. S2CID 127928945.


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