"Regeneration" Effects in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>ω</mml:mi><mml:mo>−</mml:mo><mml:mi>ϕ</mml:mi></mml:math>Production

Ross, M.; Stodolsky, L.

doi:10.1103/physrevlett.17.563

Cited by 18 publications

(4 citation statements)

References 10 publications

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“…Even a small amount of an ω−φ admixture might have a considerable effect on φ-meson production from complex nuclei. First discussed by Ross and Stodolsky [53,62], this effect has subsequently been largely overlooked in the literature [24]. Here we consider coherent and incoherent φ-meson photoproduction from nuclei within the coupled channel approach.…”

Section: Coupled Channel Scatteringmentioning

confidence: 92%

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φ-meson photoproduction from nuclei

et al. 2006

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We study coherent and incoherent φ-meson photoproduction from nuclei. The available data are analyzed in terms of single and coupled channel photoproduction. It is found that the data on coherent photoproduction can be well reproduced within a single channel optical model and show only little room for ω − φ mixing. These data indicate a normal distortion of the φ-meson in nuclei, which is compatible with the results obtained through the vector meson dominance model. The data on incoherent φ-meson photoproduction show an anomalous A-dependence resulting in a very strong φ-meson distortion. These data can be explained by a coupled channel effect through the dominant contribution from the ω → φ or π→φ transition or, more speculative, through the excitation of a cryptoexotic B φbaryon. PACS. 11.80.Gw Multichannel scattering -12.40.Vv Vector-meson dominance -13.60.-r Photon and charged-lepton interactions with hadrons -25.20.Lj Photoproduction reactions

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Section: Coupled Channel Scatteringmentioning

confidence: 92%

“…Since φ and ω mesons have the same quantum numbers, these two states should mix with each other -see e.g. [62,63,64]. Therefore the φ-meson might be produced indirectly, i.e.…”

Section: Coupled Channel Scatteringmentioning

confidence: 99%

φ-meson photoproduction from nuclei

et al. 2006

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“…So instead of the correction factor of 0.84 which is required for the ρ 0 , the required factor for φ photoproduction is close to 1 2 [12]. Invoking ω-φ mixing through the 3π channel [13] decreases the cross section only by about 12% and so alternative explanations have to be found. One is that vector dominance becomes less reliable as the mass of the vector meson increases.…”

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confidence: 99%

The soft pomeron and HERA

Donnachie

Landshoff

1996

J. Phys. G: Nucl. Part. Phys.

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The standard phenomenology of the soft pomeron in hadron - hadron interactions is recalled briefly. The model is confronted with the HERA data for the total photoproduction cross section, deep inelastic scattering, diffractive vector meson photoproduction and diffractive electroproduction of vector mesons. Although much of the data can be explained by the model, there are some aspects of the HERA data which require a more rapid variation with energy than can be incorporated. It is argued that the perturbative (BFKL) pomeron cannot give a sufficiently large contribution to explain these observations. Possible non-perturbative solutions to this problem are indicated.

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“…So instead of the correction factor of 0.84 which is required for the ρ 0 , the required factor for φ photoproduction is close to a half [7]. Invoking ω-φ mixing through the 3π channel [8] decreases the cross section only by about 12% and so alternative explanations have to be found. One is that vector dominance becomes less reliable as the mass of the vector meson increases.…”

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confidence: 99%

Diffractive photo- and electroproduction

Donnachie

1996

J. Phys. G: Nucl. Part. Phys.

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The standard phenomenology of the soft pomeron is applied to , and photoproduction for which it gives an excellent description of the energy dependence from fixed-target to HERA energies. The model gives an equally good description of electroproduction at fixed target energies but appears to be incompatible with preliminary HERA data which requires a more rapid variation with energy than can be incorporated. The status of the radial/orbital excitations of the , and as revealed in annihilation and decay is reviewed briefly, and their production at HERA considered.

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"Regeneration" Effects inω−ϕProduction

Cited by 18 publications

References 10 publications

φ-meson photoproduction from nuclei

φ-meson photoproduction from nuclei

The soft pomeron and HERA

Diffractive photo- and electroproduction

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