isospin

[′ī·sə‚spin]

(nuclear physics)

References in periodicals archive ?

In this section we investigate the importance of the isospin I = 0 and I = 1 components as well as their mixing in the calculated spectrum.

Analysis of [LAMBDA](1405) production data in the [[pi].sup.-] p [right arrow] [K.sup.0][pi][SIGMA] reaction at [p.sub.[pi]] = 1.69 GeV / c

Aichelin, "Isospin effects on the energy of vanishing flow in heavy-ion collisions," Journal of Physics G: Nuclear and Particle Physics, vol.

How much asymmetry of colliding pair affects nuclear dynamics at balance point?

If the force depended on "isospin," then the unusual surplus of protons in water might have profoundly affected Thieberger's observed results.

Alternate source of fifth force challenged

The [bar.K]N pair assumes two isospin states: I = 0 and I = 1.

Strong binding and shrinkage of single and double [bar.K] nuclear systems ([K.sup.-]pp, [K.sup.-]ppn, [K.sup.-][K.sup.-]p and [K.sup.-][K.sup.-]pp) predicted by Faddeev-Yakubovsky calculations

This means that the self-energy of a nucleon in nuclear matter with momentum k is given by (note that spin and isospin quantum numbers are suppressed) [12, 13]

Self-consistent green function method in nuclear matter

C'est d'abord une elaboration mathematique, qui implique la theorie des groupes de symetrie pour les grandeurs quantiques qui representent les "proprietes" des particules (operateurs des diverses "saveurs", isospin, etrangete, etc.): de ce point de vue, les particules, ramenees a leurs nombres quantiques, sont constituees de quarks "mathematiques".

"Construction d'objet" et objectivite en physique quantique

In these proceedings of the conference of July 2004, contributors describe their results and research on nuclei near the limits of spin, excitation, energy, isospin and charge.

Nuclei at the limits; proceedings

At low energy, the weak interaction between nucleons in this approach is parameterized by the weak pion coupling constant [f.sub.[pi]], and six other meson coupling denoted as [h.sub.[rho].sup.0], [h.sub.[rho].sup.1], [h'.sub.[rho].sup.1], [h.sub.[rho].sup.2], [h.sub.[omega].sup.0], and [h.sub.[omega].sup.1], where the subscript denotes the exchange meson and the superscript indicates the isospin change.

Neutron measurements and the weak nucleon-nucleon interaction

A measurement of the PV neutron spin rotation in helium ([[phi].sub.PV](n,[alpha])) would provide information about the relative strengths of the weak meson exchange amplitudes, and with the longitudinal analyzing power measurement in the p + [alpha] system, allow the first comparison between isospin mirror systems in weak NN interaction.

Measurement of the parity-violating neutron spin rotation in [.sup.4]He

The isospin symmetry of the strong interaction implies that [mathematical expression not reproducible].

Analysis of CP Violation in [D.sup.0] [right arrow] [K.sup.+][K.sup.-][[pi].sup.0]

The electroweak component of the SM is based upon the local gauge group SU[(2).sub.L], x U[(1).sub.Y] acting on the two SU(2) weak isospin flavor states [+ or -] 1/2 in each lepton family and each quark family.

Weinberg angle derivation from discrete subgroups of SU(2) and all that

Theoretical estimates of the weak meson coupling constants [1][2] Exchanged Isospin Coupling meson change constant [pi] 1 [H.sub.[pi].sup.1] [rho] 0 [H.sub.[rho].sup.0] [rho] 1 [H.sub.[rho].sup.1] [rho] 2 [H.sub.[rho].sup.2] [rho] 1 [H'.sub.[rho].sup.1] [omega] 0 [H.sub.[omega].sup.0] [omega] 1 [H.sub.[omega].sup.1] Exchanged Best value Reasonable meson (X[10.sup.-6]) range (X[10.sup.-6]) [pi] 1.08 0.0:2.71 [rho] 1.59 -1.59:4.29 [rho] 0.03 0:0.053 [rho] 1.33 -1.06:1.54 [rho] 0.00 None [omega] 0.80 -2.39:4.29 [omega] 0.48 0.32:0.80

A gamma polarimeter for neutron polarization measurement in a liquid deuterium target for parity violation in polarized neutron capture on deuterium

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