Showing papers on "Strangeness published in 1971"
TL;DR: In this paper, the authors defined the strangeness analog resonances in hypernuclei by analogy to the well-known isobaric resonances and discussed their relationship to the Sakata SU(3) model.
41 citations
TL;DR: In this article, the results of a longitudinal phase space (LPS) analysis of diffraction dissociation of the kaon or of the proton are compared with the results obtained by the Gribov-Morrison rule in double dissociation channels.
7 citations
TL;DR: In this article, new predictions for vector meson polarization density matrix elements are presented, which seem to agree with experiment, and a broken SU(6) description which includes configuration mixing in the Σ and Y ∗ wave functions is consistent with the success of the polarization predictions and the failure of the branching ratio predictions.
7 citations
TL;DR: Parity nonconserving interaction current contributions to nuclear γ- transitions required by gauge invariance are calculated and discussed in this article, where arguments are given that the strangeness conserving currents should contribute to the one pion exchange parts of the interaction.
6 citations
TL;DR: In this paper, it was shown that the second-order Schwinger terms in equal-time commutators involving the energy density of local operators play a crucial role in determining the scaling behavior of the local operators.
4 citations
TL;DR: In this article, a quartet model with strangeness spin was proposed, which explains the data on deep inelastic electron scattering surprisingly well, if we take the parton picture.
Abstract: A new model of elementary particles is proposed, which leads us to a quartet model with strangeness spin. The model explains the data on deep inelastic electron scattering surprisingly well, if we take the parton picture. We predict that the mean square charge per parton equals 1/6 in all hadrons and that, using sum rule, vW2P/M2 varies as 1/vw for large w. Under some assumptions we can show that vW2PjM2=105/64· (w-1)8jw3.5 and vW2/Mn'=8/3n· (w-1)1.5jw2.
1 citations
TL;DR: In this paper, the strangeness-conserving weak Hamiltonian constructed from products of octets of vector and axial-vector currents is investigated in the presence of charged and neutral currents of both regular and irregular behavior under charge conjugation.
Abstract: The isospin structure of the strangeness-conserving nonleptonic weak Hamiltonian constructed from products of octets of vector and axial-vector currents is investigated in the presence of charged and neutral currents of both regular and irregular behavior under charge conjugation. It is shown that in a $\mathrm{CP}$-invariant theory an isospin-invariant Hamiltonian is possible only in the absence of charged second-class currents.
1 citations
TL;DR: In this article, the authors used the algebra of currents to calculate the differential cross section of the reaction γHe3→ K+ AH3, in which the nucleus He3 and the hypernucleus AH3 are regarded as elementary particles.
Abstract: Using the apparatus of the algebra of currents, within the limits of “soft” kaons we calculate the differential cross section of the reaction γHe3→ K+ AH3, in which the nucleus He3 and the hypernucleus AH3 are regarded as elementary particles. Under the hypothesis of particle conservation of axial current that changes the strangeness, this makes it possible to relate the amplitude of the process of photoproduction of a hypernucleus to the matrix element of a weak nuclear current between the states nucleus-hypernucleus and to express them in terms of the corresponding nuclear form factors. The coupling constant of the axial current,characterizing β-decay of AH3, was assumed to be equal to −0.67, as in the case of a free A-particle.