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DOE OSTI · 21503913

Disentangling correlations in multiple parton interactions

Calucci, G·Treleani, D
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Abstract

Multiple Parton Interactions are the tool to obtain information on the correlations between partons in the hadron structure. Partons may be correlated in all degrees of freedom and all different correlation terms contribute to the cross section. The contributions due to the different parton flavors can be isolated, at least to some extent, by selecting properly the final state. In the case of high energy proton-proton collisions, the effects of correlations in the transverse coordinates and in fractional momenta are, on the contrary, unavoidably mixed in the final observables. The standard way to quantify the strength of double parton interactions is by the value of the effective cross section and a small value of the effective cross section may be originated both by the relatively short transverse distance between the pairs of partons undergoing the double interaction and by a large dispersion of the distribution in multiplicity of the multiparton distributions. The aim of the present paper is to show how the effects of longitudinal and transverse correlations may be disentangled by taking into account the additional information provided by double parton interactions in high energy proton-deuteron collisions.

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDSBARYON-BARYON INTERACTIONSBARYONSBASIC INTERACTIONSCHARGED PARTICLESCOLLISIONSCOMPOSITE MODELSCORRELATIONSCROSS SECTIONSDEGREES OF FREEDOMDEUTERONSDISPERSIONSDISTRIBUTIONELECTROMAGNETIC INTERACTIONSELEMENTARY PARTICLESFERMIONSFLAVOR MODELHADRON-HADRON INTERACTIONSHADRONSINTERACTIONSMATHEMATICAL MODELSMULTIPLICITYNUCLEON-NUCLEON INTERACTIONSNUCLEONSPARTICLE INTERACTIONSPARTICLE MODELSPHOTON-BARYON INTERACTIONSPHOTON-HADRON INTERACTIONSPHOTON-NEUTRON INTERACTIONSPHOTON-NUCLEON INTERACTIONSPHOTON-PROTON INTERACTIONSPROTON-NUCLEON INTERACTIONSPROTON-PROTON INTERACTIONSPROTONSQUARK MODEL

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BibTeXRIS

Calucci, G, Treleani, D. 2011-01-01. Disentangling correlations in multiple parton interactions. https://doi.org/10.1103/physrevd.83.016012

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