Showing papers in "Physics Letters B in 1979"

TL;DR: In this article, a modified form of dimensional regularization is introduced which manifestly preserves gauge invariance, unitarity, and global supersymmetry, and also considers its application to supergravity.

TL;DR: In this article, the eigenvalues of the evolution equations appear as exponents in anomalous logarithm corrections to the nominal power law of form factors determined by dimensional counting.

TL;DR: In this article, a general technique for deriving consistent theories with spontaneously broken supersymmetry and massive gravitinos is illustrated by exploiting the chiral invariance of N = 1 supergravity in four dimensions to construct a theory with broken N = 2 supersymmetric in three dimensions.

TL;DR: In this article, it was shown that the electric charge of a magnetic monopole will not be integral or rational in units of the fundamental charge of the monopole in nonconserving theories.

TL;DR: The supersymmetric extension of non-linear models with scalar fields taking values in a complex Kahler manifold was given in this paper, which is simple for four-dimensional Minkowski space, complex for two-dimensional space-time.

TL;DR: In this paper, the observed quark and lepton masses are related at momenta larger than 1015 GeV as follows: mb = mτ, mμ = 3ms and me = md/3.

TL;DR: In this paper, the current algebra for CP violating strong interactions was investigated and it was shown that the neutron electric dipole moment D n behaves as θm π 2 1n m π2 for small pion mass mπ and CP violating parameter θ.

TL;DR: In this paper, the central charges in the supersymmetry algebra of the N = 4 supersymmetric gauge theory are obtained, and it is shown that the spins of the topological monopole states should be identical to those of the massive elementary particles.

TL;DR: In this article, a closed equation for the loop average is obtained in QCD with an infinite number of colors, and it is shown how this equation generates the planar graphs, and the lattice regularization of this equation is considered.

TL;DR: In this paper, a quark bag model for nucleons and isobars is made with pions existing only outside the bag, and the pion field is introduced so as to ensure continuity of the axial vector current at the boundary of the bag.

TL;DR: In this article, a new heavy quark potential is proposed which incorporates the two concepts of asymptotic freedom and linear quark confinement in a unified manner, and it is shown that this potential reproduces the spectroscopy of the triplet c c c ¯ system charmonium and the triplets b b ¯ system upsilonium.

TL;DR: In this paper, the α s 2 corrections to σ tot (e + e − → hadrons) in massless QCD evaluated within the minimal subtraction scheme were presented.

TL;DR: In this paper, the authors considered a scheme in which all quarks and leptons are composites of only two types of fundamental spin 1 2 objects with electric charges 1 3 and 0.

TL;DR: Hadron jets produced in e+e− annihilation between 13 GeV and 31.6 GeV in c.m. energy at PETRA are analyzed in this article, showing that the broadening of the jets is not uniform in azimuthal angle around the quark direction but tends to yield planar events with large and growing transverse momenta in the plane and smaller transverse momentsa normal to the plane.

TL;DR: In this paper, the Higgs fields transform as doublets under SU(2) × U(1) in six dimensions, with the components of the gauge potentials in the extra dimensions playing the role of Higgs' fields.

TL;DR: In this article, it was shown that gauge fields can be considered as chiral fields defined on the space of all possible contours, which leads to an infinite number of functionally conserved currents.

TL;DR: In this article, the constraints arising upon coupling a massless spin 5 2 field to gravity are analyzed, and they depend not only on the Einstein tensor, but also on the off-shell (Weyl) components of the curvature.

TL;DR: In this article, exact factorized S-matrices were proposed for two models of (1 + 1)-dimensional quantum field theory: the Z(N) symmetric (1+ 1)-dimensions of the Todd chain and the eϕ + e−2ϕ model.

TL;DR: In this paper, the evolution of jets produced in hard processes can be computed perturbatively in QCD up to appearance of a "preconfinement" stage consisting of finite mass colourless clusters of quarks and gluons.

TL;DR: In this paper, a heuristic model is presented, treating leptons and quarks as composites of spin 1 2 fields with charges 0, ± e 3, which leads to the emergence of three quark colors.

TL;DR: In this paper, the path-dependent phase factor P exp(i∫σAμdzμ) in gauge theory is studied and it is shown that it satisfies differential equations which are equivalent to those for a quantized string if the gauge fields meet certain constraints.

TL;DR: In this paper, a simple derivation of the classical non-local conservation laws in two dimensions discovered by Luscher and Pohlmeyer is given. And several classes of models are shown to possess the same structure.

TL;DR: In this paper, the authors extended their earlier measurements of parity violating asymmetries in the inelastic scattering of longitudinally polarized electrons from deuterium to cover the range 0.15 ≤ y ≤ 0.36.

TL;DR: The Green's function of the H-atom was calculated by a simple reduction of Feynman's path integral to gaussian form as mentioned in this paper, which was later used to calculate the Green's functions of all the atoms.

TL;DR: In this paper, a spontaneously broken N = 8 supergravity in four dimensions with four arbitrary mass parameters is constructed by identifying local Sp(8) and global E(6) invariances and comparing with known theories.

TL;DR: The mass2 splitting between leptons and quarks and their spin-0 partners under supersymmetry is related to the goldstino couplings as mentioned in this paper, and it requires the existence of at least two neutral gauge bosons in addition to the photon.

TL;DR: In this paper, a two-rapidity-chain fragmentation model for small p T hadronic collisions based on the dual topological approach is proposed. But the model is not suitable for large p T collisions, and it cannot account for the energy and dependence of all available one particle inclusive data.

TL;DR: In this paper, it was shown that the true Higgs mesons do not mediate flavor changing interactions and that the masses of the spinless mesons can be arbitrarily large without affecting the structure of the weak interactions.

TL;DR: In this article, the authors report results on the reactions e+e−− → hadrons in the energy range 13 ⩽ Ecm ⌽ 31.6 GeV and compare them with qq jets described in the quarkparton model and with first-order QCD predictions including gluon emission (qqg jets).

TL;DR: A chiral spinor superfield as mentioned in this paper describes a scalar multiplet consisting of an antisymmetric-tensor gauge field, a Weyl spinor, and no auxiliary fields.