Collisions of protons with light nuclei shed new light on nucleon structure

D. Treleani and G. Calucci
Phys. Rev. D 86, 036003 – Published 20 August 2012

Abstract

The high rates of multiparton interactions at the LHC can provide a unique opportunity to study the multiparton structure of the hadron. To this purpose high-energy collisions of protons with nuclei are particularly suitable. The rates of multiparton interactions depend, in fact, both on the partonic multiplicities and on the distributions of partons in transverse space, which produce different effects on the cross section in pA collisions, as a function of the atomic mass number A. Differently with respect to the case of multiparton interactions in pp collisions, the possibility of changing the atomic mass number thus provides an additional handle to distinguish the diverse contributions. Some relevant features of double parton interactions in pD collisions have been discussed in a previous paper. In the present paper we show how the effects of double and triple correlation terms of the multiparton structure can be disentangled, by comparing the rates of multiple parton interactions in collisions of protons with D, H3, and He3.

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  • Received 28 April 2012

DOI:https://doi.org/10.1103/PhysRevD.86.036003

© 2012 American Physical Society

Authors & Affiliations

D. Treleani*

  • Dipartimento di Fisica dell’Università di Trieste and INFN, Sezione di Trieste, Strada Costiera 11, Miramare-Grignano, I-34151 Trieste, Italy

G. Calucci

  • Dipartimento di Fisica dell’Università di Trieste, Trieste, Italy

  • *daniele.treleani@ts.infn.it
  • giorgio.calucci@ts.infn.it Now retired.

See Also

Disentangling correlations in multiple parton interactions

G. Calucci and D. Treleani
Phys. Rev. D 83, 016012 (2011)

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Vol. 86, Iss. 3 — 1 August 2012

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