Avoidance of pomeron-f identity through systematic treatment of overlap contributions to the cylinder

Freeman, J.; Jones, C. E.

doi:10.1016/0370-2693(79)90055-8

Cited by 6 publications

(2 citation statements)

References 12 publications

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“…The C v spectrum has previously been studied by a number of investigators using several different light sources such as sparks ( (Freeman and Jones 1970). The resonance lines connecting the np 'P and the 2p 'PI levels to the ground state occur below 41 8, and are of special importance since they establish the absolute excitation energies in the term system.…”

Section: The Experimental Materialsmentioning

confidence: 99%

Extended analysis of the spectrum and term system of He-like carbon

Engström

Bengtsson

Jupén

et al. 1992

J. Phys. B: At. Mol. Opt. Phys.

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This paper reports an investigation of the spectrum and term system of He-like carbon, C V. A total of 97 lines in the 30-5000 AA interval are now identified by combining previously known data with many newly observed transitions obtained by the beam-foil technique and from observations at the JET tokamak. From this experimental material 48 energy levels are established, and the ionization limit is determined to 3162 408+or-20 cm-1. The QED contribution to this value is estimated to -166+or-20 cm-1 and agrees, within the error limits, with recent theoretical results. Series formulae are also presented allowing accurate extrapolations of the observed term system.

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Section: The Experimental Materialsmentioning

confidence: 99%

Extended analysis of the spectrum and term system of He-like carbon

Engström

Bengtsson

Jupén

et al. 1992

J. Phys. B: At. Mol. Opt. Phys.

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“…As has often been argued, the planar analyticity plays a central role in building up the cylinder and requires the planar bootstrap constraint!) · 41 · 91 where (3) and N corresponds to the internal SU(N)…”

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confidence: 99%

Trajectory Function of the Bare Pomeron in the Higher Rank Cylinder Amplitude

Fujisaki

Yang

1980

Progress of Theoretical Physics

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By the use of an explicit parametrization for the planar triple reggeon coupling, the slope and intercept of the bare pomeron are calculated for the second rank cylinder amplitude of the possible finite energy correction.In the dual topological unitarization scheme, the leading Regge singularity of the cylinder is identified as the bare pomeronY-91 The slope-intercept relationship of the cylinder singularity has originally been evaluated by Bishari 91 for a naive cylinder model with substantial j-plane cut contamination. From the phenomenological point of view, the numerical results of Ref. 9) are very reasonable. From the theoretical point of view, however, the cylinder amplitude is free of j-plane cuts so long as the planar amplitude correctly satisfies the pole-to-pole bootstrap condition. 21 · 41 As is generally known, u · 21 · 41 the planar analyticity provides us with the most crucial constraint on the cylinder singularity. Consequently it may be of physical importance to examine the trajectory function of the bare pomeron for the cylinder amplitude which is built just by the planar sewing method. 21 · 41In the present short communication, this is performed for the second rank cylinder amplitude of the possible finite energy correction which has recently been proposed by the present authors. 41 Use is made of an empirical parametrization for the t-dependence of the planar triple reggeon coupling which has been adopted in Ref. 9).Leading and nonleading triple reggeon couplings, g (t; t, +, t, -) and g (t; t 1 +, t 1 -), are parametrized, respectively, as follows : 91 1-J [-] g, =g(t; t, +, t,-)) where a[a] is the planar leading [nonleading] reggeon and ac,l =a (t1 +)+a (t~-) -1. It is evident that the dual nonsensezero structure is automatically guaranteed in Eq. (1). As has often been argued, the planar analyticity plays a central role in building up the cylinder and requires the planar bootstrap constraint!) · 41 · 91 where (3) and N corresponds to the internal SU(N) symmetry. Linearity of a and a is taken for granted in the standard manner. It is of great use to remember the O'Donovantype integration 101 (4) by guest on March 21, 2015 http://ptp.oxfordjournals.org/ Downloaded from

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Color, flavor, duality, and the pomeron

Dash

1980

Z. Phys. C - Particles and Fields

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Avoidance of pomeron-f identity through systematic treatment of overlap contributions to the cylinder

Cited by 6 publications

References 12 publications

Extended analysis of the spectrum and term system of He-like carbon

Extended analysis of the spectrum and term system of He-like carbon

Trajectory Function of the Bare Pomeron in the Higher Rank Cylinder Amplitude

Color, flavor, duality, and the pomeron

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