We present a calculation of the effective cross section σeff, an important ingredient in the description of double parton scattering in proton–proton collisions. Our theoretical approach makes use of a Light-Front quark model as a framework to calculate the double parton distribution functions at low-resolution scale. QCD evolution is implemented to reach the experimental scale. The obtained values of σeff in the valence region are consistent with the present experimental scenario, in particular with the sets of data which include the same kinematical range. However the result of the complete calculation shows a dependence of σeff on xi, a feature not easily seen in the available data, probably because of their low accuracy. Measurements of σeff in restricted xi regions are addressed to obtain indications on double parton correlations, a novel and interesting aspect of the three dimensional structure of the nucleon.

Double parton scattering: A study of the effective cross section within a Light-Front quark model / Rinaldi, Matteo; Scopetta, Sergio; Traini, Marco Claudio; Vento, Vicente. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 752:(2015), pp. 40-45. [10.1016/j.physletb.2015.11.031]

Double parton scattering: A study of the effective cross section within a Light-Front quark model

Traini, Marco Claudio;
2015

Abstract

We present a calculation of the effective cross section σeff, an important ingredient in the description of double parton scattering in proton–proton collisions. Our theoretical approach makes use of a Light-Front quark model as a framework to calculate the double parton distribution functions at low-resolution scale. QCD evolution is implemented to reach the experimental scale. The obtained values of σeff in the valence region are consistent with the present experimental scenario, in particular with the sets of data which include the same kinematical range. However the result of the complete calculation shows a dependence of σeff on xi, a feature not easily seen in the available data, probably because of their low accuracy. Measurements of σeff in restricted xi regions are addressed to obtain indications on double parton correlations, a novel and interesting aspect of the three dimensional structure of the nucleon.
Rinaldi, Matteo; Scopetta, Sergio; Traini, Marco Claudio; Vento, Vicente
Double parton scattering: A study of the effective cross section within a Light-Front quark model / Rinaldi, Matteo; Scopetta, Sergio; Traini, Marco Claudio; Vento, Vicente. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 752:(2015), pp. 40-45. [10.1016/j.physletb.2015.11.031]
File in questo prodotto:
File Dimensione Formato  
PLB752_2016_40_45.pdf

accesso aperto

Tipologia: Versione editoriale (Publisher’s layout)
Licenza: Creative commons
Dimensione 379.89 kB
Formato Adobe PDF
379.89 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11572/122277
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 24
  • ???jsp.display-item.citation.isi??? 23
social impact