isospin


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isospin

[′ī·sə‚spin]
(nuclear physics)
References in periodicals archive ?
Despite producing the most sensitive weighing ever, Speake says, the experiment did not rule out the isospin idea.
The 4x4 matrix that achieves the Bogoliubov mixing has four possible forms for the four possible isospin cases obeying SU(2) x SU(2): (0, 0), (1/2, 0), (0, 1/2), and (1/2, 1/2).
strong][much less than]1, parity-odd effects in the two-nucleon system can be parameterized by the five independent amplitudes for S-P transitions involving the following nucleons and isospin exchanges: [.
In the SM the EW isospin symmetry group that defines the lepton and quark flavor states is assumed to be the Lie group SU(2) with its two flavor eigenstates per family.
1], where superscripts refer to the isospin carried by the exchange meson.
These short remarks are enough for the purposes of the present paper; further considerations on other properties like strangeness, isospin and so on, whose conservation rules are necessary for instance to describe the decay of complex particles consisting of two or three quarks, are well known and thus omitted here for brevity.
Theoretical estimates of the weak meson coupling constants [1][2] Exchanged Isospin Coupling meson change constant [pi] 1 [H.
Isospin effect on particle emission in nuclear dissociation.
It follows that the usefulness of isospin symmetry extends to particle physics.
1232) baryon has 3 valence quarks of the u flavor, the isospin I = 3/2 of all four [DELTA] baryons is fully symmetric.
Obviously, isospin symmetry shows that this ratio is reversed for the neutron.
and invariant under a global weak isospin transformation [U.