On the longitudinal structure function in the dipole model

Bibliographic description

punktacja MEiN [2015 A]: 15

title:	On the longitudinal structure function in the dipole model
author:	Niedziela Marek, Praszałowicz Michał
journal title:	Acta Physica Polonica. B
volume:	46
issue:	10
date of publication :	2015
pages:	2019-2037
ISSN:	0587-4254
eISSN:	1509-5770
DOI:	10.5506/APhysPolB.46.2019
language:	English
journal language:	English
abstract in English:	We compare new HERA data for the longitudinal structure function F_{L} with the predictions of different variants of the dipole model. In particular, we show that the ratio F_{L} / F_{2} is well described by the dipole models and is rather insensitive to the details of the fit. Fits to F_{2} are performed with the help of geometrical scaling (GS). Using the property of GS, we derive the bounds for F_{L} / F_{2} both for the different versions of the dipole model and in the general case. Finally, we briefly discuss how the higher Fock components of the photon wave function may affect these bounds.
number of pulisher's sheets:	1,2
affiliation:	Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
type:	journal article
subtype:	academic paper