Article (Scientific journals)
Relativistic effects in model calculations of double parton distribution functions
Rinaldi, Matteo; Ceccopieri, Federico
2017In Physical Review. D, 95 (3)
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Abstract :
[en] In this paper we consider double-parton distribution functions (dPDFs), which are the main nonperturbative ingredients appearing in the double-parton scattering cross section formula in hadronic collisions. By using recent calculation of dPDFs by means of constituent quark models within the so-called light-front approach, we investigate the role of relativistic effects on dPDFs. We find, in particular, that the so-called Melosh operators, which allow us to properly convert the LF spin into the canonical one and incorporate a proper treatment of boosts, produce sizeable effects on dPDFs. We discuss specific partonic correlations induced by these operators in the transverse plane which are relevant to the proton structure, and we study under which conditions these results are stable against variations in the choice of the proton wave function. © 2017 American Physical Society.
Disciplines :
Physics
Author, co-author :
Rinaldi, Matteo;  Instituto de Fisica Corpuscular (CSIC-Universitat de Valencia), Parc Cientific UV, c/Catedratico Jose Beltran 2, Paterna, Valencia, E-46980, Spain
Ceccopieri, Federico ;  Université de Liège - ULg
Language :
English
Title :
Relativistic effects in model calculations of double parton distribution functions
Publication date :
2017
Journal title :
Physical Review. D
ISSN :
2470-0010
eISSN :
2470-0029
Publisher :
American Physical Society, College Park, United States - Maryland
Volume :
95
Issue :
3
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 13 April 2020

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