Mass dependence of vector meson photoproduction off protons and nuclei within the energy-dependent hot-spot model

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F18%3A00325429" target="_blank" >RIV/68407700:21340/18:00325429 - isvavai.cz</a>

Výsledek na webu

<a href="http://inspirehep.net/record/1667899" target="_blank" >http://inspirehep.net/record/1667899</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nuclphysb.2018.07.010" target="_blank" >10.1016/j.nuclphysb.2018.07.010</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Mass dependence of vector meson photoproduction off protons and nuclei within the energy-dependent hot-spot model

Popis výsledku v původním jazyce

We study the photoproduction of vector mesons off proton and off nuclear targets. We work within the colour dipole model in an approach that includes subnucleon degrees of freedom, so-called hot spots, whose positions in the impact-parameter plane change event-by-event. The key feature of our model is that the number of hot spots depends on the energy of the photon–target interaction. Predictions are presented for exclusive and dissociative production of ρ0 , J/ψ , and ϒ(1S) off protons, as well as for coherent and incoherent photoproduction of ρ0 off nuclear targets, where Xe, Au, and Pb nuclei are considered. We find that the mass dependence of dissociative production off protons as a function of the energy of the interaction provides a further handle to search for saturation effects at HERA, the LHC and future colliders. We also find that the coherent photonuclear production of ρ0 is sensitive to fluctuations in the subnucleon degrees of freedom at RHIC and LHC energies.

Název v anglickém jazyce

Mass dependence of vector meson photoproduction off protons and nuclei within the energy-dependent hot-spot model

Popis výsledku anglicky

We study the photoproduction of vector mesons off proton and off nuclear targets. We work within the colour dipole model in an approach that includes subnucleon degrees of freedom, so-called hot spots, whose positions in the impact-parameter plane change event-by-event. The key feature of our model is that the number of hot spots depends on the energy of the photon–target interaction. Predictions are presented for exclusive and dissociative production of ρ0 , J/ψ , and ϒ(1S) off protons, as well as for coherent and incoherent photoproduction of ρ0 off nuclear targets, where Xe, Au, and Pb nuclei are considered. We find that the mass dependence of dissociative production off protons as a function of the energy of the interaction provides a further handle to search for saturation effects at HERA, the LHC and future colliders. We also find that the coherent photonuclear production of ρ0 is sensitive to fluctuations in the subnucleon degrees of freedom at RHIC and LHC energies.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nuclear Physics B

ISSN

0550-3213

e-ISSN

1873-1562

Svazek periodika

2018

Číslo periodika v rámci svazku

934

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

330-340

Kód UT WoS článku

000445497400012

EID výsledku v databázi Scopus

2-s2.0-85050099147