Naslov
Description and interpretation of DVCS measurements

Autori
Kumerički, Krešimir ; Müller, Dieter

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of 6th International Conference on Physics Opportunities at an Electron-Ion Collider / Marquet, C. ; Pire, B. ; Sabatie, F. - : EDP Sciences, 2016, 01012-1

Skup
6th International Conference on Physics Opportunities at an Electron-Ion Collider (POETIC6)

Mjesto i datum
Palaiseau, Francuska, 07.09.2015. - 11.09.2015

Vrsta sudjelovanja
Plenarno

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Generalized parton distributions; deeply virtual Compton scattering

Sažetak
Having in mind the well-known limitations of certain models of generalized parton distributions (GPDs), we show that the allegedly universal GPDs, describing both deeply virtual Compton scattering (DVCS) and deeply virtual meson production (DVMP) data, fail to describe measurements of deep inelastic scattering. We present a new global DVCS fit that describes reasonably the world data set, which includes now also new measurements from Hall A and CLAS collaborations. We also explicitly illustrate that Compton form factors (CFFs) cannot be unambiguously extracted from photon electroproduction measurements off unpolarized proton alone and we argue that it is more reliable to interpret such measurements in terms of certain CFF combinations, where still some care is needed in order to estimate the propagated error.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Napomena
EPJ Web of Conferences, volumen 112 (2016). Indexed in Conference Proceedings Citation Index (Web of Science), Scopus, inSPIRE, itd.

POVEZANOST RADA