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Pregled bibliografske jedinice broj: 736557

Hard Exclusive Φ and J/Ψ Photoproduction off a Proton


Goritschnig, Alexander; Melić, Blaženka; Passek- Kumerički, Kornelija; Schweiger, Wolfgang
Hard Exclusive Φ and J/Ψ Photoproduction off a Proton // Pos proceedings of science, DIS2014 (2014) (podatak o recenziji nije dostupan, članak, znanstveni)


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Naslov
Hard Exclusive Φ and J/Ψ Photoproduction off a Proton

Autori
Goritschnig, Alexander ; Melić, Blaženka ; Passek- Kumerički, Kornelija ; Schweiger, Wolfgang

Izvornik
Pos proceedings of science (1824-8039) DIS2014 (2014);

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
perturbative QCD ; meson photoproduction

Sažetak
We study the photoproduction of the vector mesons Φ and J/Ψ off a proton in the kinematical regime of large energies and scattering angles within the framework of perturbative QCD. Our investigations are based on the hard scattering approach. This means that the hadrons are replaced by their valence Fock states and scattering on the partonic level is described by tree graphs in which the large transferred momentum is redistributed between the valence partons via the exchange of hard gluons. We find that the unpolarized photoproduction cross sections are dominated by Compton-scattering-like graphs in which the photon couples to the proton, whereas vector-meson- dominance-like graphs, in which the photon fluctuates into the heavy quark-antiquark pair which then exchanges two gluons with the proton, play a minor role. We give explicit predictions for unpolarized scattering cross sections and compare them with experimental data where possible.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Napomena
[arXiv:1411.0904]



POVEZANOST RADA


Projekti:
098-0982930-2864 - Fundamentalne interakcije u fizici elementarnih čestica i kozmologiji (Duplančić, Goran, MZOS ) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb

Citiraj ovu publikaciju:

Goritschnig, Alexander; Melić, Blaženka; Passek- Kumerički, Kornelija; Schweiger, Wolfgang
Hard Exclusive Φ and J/Ψ Photoproduction off a Proton // Pos proceedings of science, DIS2014 (2014) (podatak o recenziji nije dostupan, članak, znanstveni)
Goritschnig, A., Melić, B., Passek- Kumerički, K. & Schweiger, W. (2014) Hard Exclusive Φ and J/Ψ Photoproduction off a Proton. Pos proceedings of science, DIS2014.
@article{article, author = {Goritschnig, Alexander and Meli\'{c}, Bla\v{z}enka and Passek- Kumeri\v{c}ki, Kornelija and Schweiger, Wolfgang}, year = {2014}, pages = {170}, keywords = {perturbative QCD, meson photoproduction}, journal = {Pos proceedings of science}, volume = {DIS2014}, issn = {1824-8039}, title = {Hard Exclusive Φ and J/Ψ Photoproduction off a Proton}, keyword = {perturbative QCD, meson photoproduction} }
@article{article, author = {Goritschnig, Alexander and Meli\'{c}, Bla\v{z}enka and Passek- Kumeri\v{c}ki, Kornelija and Schweiger, Wolfgang}, year = {2014}, pages = {170}, keywords = {perturbative QCD, meson photoproduction}, journal = {Pos proceedings of science}, volume = {DIS2014}, issn = {1824-8039}, title = {Hard Exclusive Φ and J/Ψ Photoproduction off a Proton}, keyword = {perturbative QCD, meson photoproduction} }




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