The joint study of double-parton scattering (DPS) in high-energy proton-proton and proton-nucleus collisions can provide a lot of information on multiparton correlations. The multiparton structure is in fact probed in different ways by DPS in p−p and in p−A collisions. In p−A collisions, the interpretation of the experimental results may be complicated, however, by the presence of interference terms, which are missing in p−p collisions. A suitable reaction channel, where interference terms are absent, is WJJ production. By studying WJJ production in p−Pb collisions, we estimate that the fraction of events due to DPS may be larger by a factor 3 or 4 as compared to p−p, while the amount of the increased fraction can give information on the importance of different correlation terms.
Titolo: | Double parton scatterings in high-energy proton-nucleus collisions and partonic correlations |
Autori: | |
Data di pubblicazione: | 2014 |
Rivista: | |
Abstract: | The joint study of double-parton scattering (DPS) in high-energy proton-proton and proton-nucleus collisions can provide a lot of information on multiparton correlations. The multiparton structure is in fact probed in different ways by DPS in p−p and in p−A collisions. In p−A collisions, the interpretation of the experimental results may be complicated, however, by the presence of interference terms, which are missing in p−p collisions. A suitable reaction channel, where interference terms are absent, is WJJ production. By studying WJJ production in p−Pb collisions, we estimate that the fraction of events due to DPS may be larger by a factor 3 or 4 as compared to p−p, while the amount of the increased fraction can give information on the importance of different correlation terms. |
Handle: | http://hdl.handle.net/11368/2750501 |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1103/PhysRevD.89.016020 |
URL: | http://link.aps.org/doi/10.1103/PhysRevD.89.016020 |
Appare nelle tipologie: | 1.1 Articolo in Rivista |