Energy dependence of the electoproduction of vector mesons

Hamad, Khalid M. A.; Bunayi, M. K.; Kanaan, Afraa Ammash

doi:10.1007/s12648-015-0823-4

Cited by 2 publications

(6 citation statements)

References 16 publications

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“…An agreement between the model and the data is clear in fig. (3). The steep increase with energy at a constant is attributed to the high intercept of the hard pormeron trajectory.…”

Section: Dependencementioning

confidence: 95%

“…The hard region is reached if one of these variables is large [1,2]. In that case, the QCD calculations should be used [1][2][3][4]. Most of the qualitative properties of the data can be reproduced by such calculations.…”

Section: Introductionmentioning

confidence: 99%

“…As the process in present case is elastic, the variable is not a hard scale. Furthermore, the phi mass is about 1.02 , then the is the only hard variable [3]. The two pomeron model involves contributions from the hard and the soft terms.…”

Section: Introductionmentioning

confidence: 99%

“…Data on the total cross section for the photoproduction at high is parameterized as [7][8][9]. The parameter [10][11]increases as the mass scale ( ) increases while, for electroproduction [3] increases with the hard scale ( . However, the rate of increase of decreases with increasing the hard scale [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…The parameter [10][11]increases as the mass scale ( ) increases while, for electroproduction [3] increases with the hard scale ( . However, the rate of increase of decreases with increasing the hard scale [3,4]. The values of can be obtained by fitting the total cross section using at each .…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

phi meson electroproduction at low transferred momentum

Kanaan¹,

Hamad²,

Alzubadi³

2022

JUAPS

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The electroproduction of phi meson is analyzed. The amplitude consist of two terms, the soft and the hard pomeron terms. it is assumed, that both pomerons are Regge poles. In the present approach, the two pomeron amplitude for the photoproduction processes is extended to construct an amplitude for the electroproduction processes by introducing the photon virtual mass ( . The residues of the two poles become functions of ( . These functions are extracted by fitting the differential cross section ( ) of the extended model at constant energy to the experimental data using the chi-square method. At each , the hard and the soft terms are multiplied by the factors and to match the data. The vertices of the pomeron coupling to the interacting particles are calculated by the dimensions of the vertices which are related to the masses of the interacting particles at each vertex..

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“…An agreement between the model and the data is clear in fig. (3). The steep increase with energy at a constant is attributed to the high intercept of the hard pormeron trajectory.…”

Section: Dependencementioning

confidence: 95%