A4 Artikkeli konferenssijulkaisussa
Pion–nucleus Drell–Yan data as a novel constraint for nuclear PDFs (2017)

Paakkinen, P., Eskola, K., & Paukkunen, H. (2017). Pion–nucleus Drell–Yan data as a novel constraint for nuclear PDFs. In DIS 2017 : Proceedings of the 25th International Workshop on Deep-Inelastic Scattering and Related Subjects (Article 205). Sissa. PoS : Proceedings of Science, DIS2017. https://doi.org/10.22323/1.297.0205

JYU-tekijät tai -toimittajat

Paukkunen, Hannu
Paakkinen, Petja
Eskola, Kari

Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Paakkinen, Petja; Eskola, Kari; Paukkunen, Hannu

Emojulkaisu: DIS 2017 : Proceedings of the 25th International Workshop on Deep-Inelastic Scattering and Related Subjects

Lehti tai sarja: PoS : Proceedings of Science

ISSN: 1824-8039

eISSN: 1824-8039

Julkaisuvuosi: 2017

Sarjan numero: DIS2017

Artikkelinumero: 205

Kustantaja: Sissa

Julkaisumaa: Italia

Julkaisun kieli: englanti

DOI: https://doi.org/10.22323/1.297.0205

Julkaisun avoin saatavuus: Avoimesti saatavilla

Julkaisukanavan avoin saatavuus: Kokonaan avoin julkaisukanava

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/56232

Lisätietoja: DIS 2017 : 25th International Workshop on Deep-Inelastic Scattering and Related Subjects, 3-7 April 2017, University of Birmingham, Birmingham, UK

Tiivistelmä

We have studied the prospects of using the Drell-Yan dilepton process in pion-nucleus collisions as a novel input in the global analysis of nuclear parton distribution functions (nPDFs). In a NLO QCD framework, we find the measured nuclear cross-section ratios from the NA3, NA10 and E615 experiments to be largely insensitive to the pion parton distributions and also compatible with the EPS09 and nCTEQ15 nPDFs. These data sets can thus be, and in EPPS16 have been, included in global nPDF analyses without introducing significant new theoretical uncertainties or tension with the other data. In particular, we explore the constraining power of these data sets on the possible flavour asymmetry in the valence-quark nuclear modifications. Moreover, using the COMPASS kinematics we present predictions for pion charge-difference ratio, a new measurable which could help to further constrain this asymmetry.

Vapaat asiasanat: Drell–Yan dilepton process; nuclear PDFs

Liittyvät organisaatiot

Hankkeet, joissa julkaisu on tehty

OKM-raportointi: Kyllä

Raportointivuosi: 2017

JUFO-taso: 0