Showing papers in "Physics Letters B in 1967"

TL;DR: In this paper, a simple method for calculation of the contribution from arbitrary diagrams with closed loops was proposed, based on the method of Feynman functional integration, which is used in this paper.

TL;DR: In this paper, the dispersion sum rules for the high-energy πN scattering parameters are derived with the aid of Cauchy's theorem, and a comparison with experiment is made.

TL;DR: In this article, it was shown that the effective range expansion has a pole at a negative energy (E lab ≅ −0.1 MeV), which implies σ free = 3.14 ± 0.06 b.

TL;DR: In this article, a weak coupling of particles and holes is used to describe the excited states in the sd shell of the shell of a dragonfly, which is similar to ours.

TL;DR: In this paper, a new technique was applied to the search for neutrinoless double β decay, and a Ge(Li) crystal was used both as source and as detector of the 76Ge → 76Se transition.

TL;DR: In this paper, it was shown that if particles and resonances occur in infinite Regge recurrence series, the contradiction between Regge pole and single particle exchange models for high energy two-body collisions can be avoided, and double particle exchange is depressed with respect to single exchange.

TL;DR: In this paper, the elastic scattering cross sections of nucleons scattered from nuclei are calculated for 4He target nucleus and compared with the recent experimental data, and numerical results for the target nucleus are presented.

TL;DR: In this paper, the possibility of studying partial level densities by measuring the energy dependence of average cross sections for direct reactions is discussed, in particular for the α,p reaction.

TL;DR: In this article, the position and shape of the ϱ-meson resonance with electron-positron colliding beams were determined by means of π-π resonance analysis.

TL;DR: In this article, the cross section of the magnetic dipole γNN ∗ form factor was measured by observing inelastically scattered electrons in coincidence with protons from N ∗ → p + π o.

TL;DR: A mass-spectrometer on-line with the Orsay 150 MeV proton synchrocyclotron has been used to determine the β half-line of 90-96 Rb, 143-144 Cs, 144 Ba and 144 La as mentioned in this paper.

TL;DR: A measurement of the half-life of the free neutron yields T 1 2 = 10.80 ± 0.16 min this article, where T is the number of neutrons in the system.

TL;DR: In this article, an attempt is made to give a coherent explanation of the recent experiments on the elastic electron and nucleon scattering from 4He, and the experiment is described in detail.

TL;DR: In this article, it was shown that under certain assumptions the problem of simultaneous treatment of J = 0 and T = 0 pairing also can be reduced to the solution of gap equations of the usual form.

TL;DR: The spontaneous fission half-lives of the new nuclides 244Fm and 245Fm were determined in this article, and their decay was studied and the spontaneous half-life of the newly discovered nuclide 248Fm was determined.

TL;DR: In this paper, the shape of the angular distribution is found to change suddenly between 8 and 11 GeV/c.s, and an interpretation of this discontinuous behaviour in terms of the reactive effects of baryon-antibaryon pair production is proposed.

TL;DR: In this paper, the Suzuki-Sugarawa method was used to calculate the one pion exchange contribution to the weak parity violating nucleon-nucleon potential by relating the weak NNπ vertex to the nonleptonic hyperon decays.

TL;DR: In this paper, the cross sections for photoproduction of vector mesons are calculated combining photo-dissociation model and quark model, and the cross-sections are calculated by combining the two models.

TL;DR: Pionic 2p-1s transitions from Be, 10B, C, N, 16O, 18O, F and Na have been measured with the Ge counters in this paper.

TL;DR: In this paper, a density dependent modification of the Kallio-Kolltveit potential is made to ensure a good fit to nuclear matter, and various matrix elements typical of the 16 O region are evaluated, and a comparison is made with the results of Wong and Kuo.

TL;DR: In this paper, a method of integral detection of γ quanta with subsequent resonance separation and storage of a periodic signal was used to measure the circular polarization of the quanta in 181Ta (a transition of 482 keV).

TL;DR: In this paper, the authors propose the abandonment of the quark model for strong interactions, in favour of models based on integrally charged triplets, and discuss a model of this kind based on a proposal of Han and Nambu.

TL;DR: In this article, a method is presented for obtaining directly from the experimental phase shift the matrix elements between oscillator wave functions of the relative motion without constructing an explicit potential. But this method is not suitable for counting spin-orbit splittings.

TL;DR: In this article, the angular distribution of protons extracted by 600 MeV electrons from the 1s and 1p shells of 12 C was measured and the results analyzed in terms of two simple nuclear potential wells.

TL;DR: In this paper, the A 2 meson was obtained in the reaction π − p → pX − in three independent runs at 6 and 7 GeV/ c, showing a narrow dip of 6 standard deviations in the centre of the A2 peak at 1297 MeV, thus suggesting a two-peak structure.

TL;DR: In this article, the inelastic α-particle scattering from 204 Pb and 206 Pb was studied and the results showed that the transition strengths to the 3 −, 5 −, 2 + and 4 + states in 208 Pb were unaltered in 207 Pb, and the 3−, 2+ and 4+ strengths were unchanged in 204 PB, 206 PB.

TL;DR: In this article, the invariant four-momentum transfer squared − t varies from 0.1 to 0.75 (GeV/ c ) 2 for the polarization parameter P 0 in π − p scattering at 6.0, 8.0 and 12.0.

TL;DR: In this paper, the Hartree-Fock integro-differential equations for spherical nuclei were solved directly using the Schrodinger equation with a local but state-dependent potential.

TL;DR: The experimental data for Coulomb displacement energies in the mass region 33 to 65 are discussed in this paper, where it is found for isobaric pairs of nuclei for which all nucleons in excess of 40 lie in the 1 f 7 2 shell with resonable accuracy given by the expression ΔE c = 7220 + 300 (Z > − 1) + (250/2T) [ 1 2 (1 + (− 1) Z′ >] in keV, where Z > ′ = Z > − 20