A4 Article in conference proceedings
Features of W production in p-p, p-Pb and Pb-Pb collisions (2017)

Arleo, F., Chapon, É., & Paukkunen, H. (2017). Features of W production in p-p, p-Pb and Pb-Pb collisions. In DIS 2017 : Proceedings of the 25th International Workshop on Deep-Inelastic Scattering and Related Subjects (Article 006). Sissa. PoS : Proceedings of Science, DIS2017. https://pos.sissa.it/297/006/pdf

JYU authors or editors

Publication details

All authors or editors: Arleo, François; Chapon, Émilien; Paukkunen, Hannu

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

Journal or series: PoS : Proceedings of Science

ISSN: 1824-8039

eISSN: 1824-8039

Publication year: 2017

Number in series: DIS2017

Article number: 006

Publisher: Sissa

Publication country: Italy

Publication language: English

Persistent website address: https://pos.sissa.it/297/006/pdf

Publication open access: Openly available

Publication channel open access: Open Access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/56273

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

Abstract

We consider the production of inclusive W bosons in variety of high-energy hadronic collisions: p-p, p-p, p-Pb, and Pb-Pb. In particular, we focus on the resulting distributions of charged leptons from W decay that can be measured with relatively low backgrounds. The leading-order expressions within the collinearly factorized QCD indicate that the center-of-mass energy dependence at forward/backward rapidities should be well approximated by a simple power law. The scaling exponent is related to the small-x behaviour of the quark distributions, which is largely driven by the parton evolution. An interesting consequence is the simple scaling law for the lepton charge asymmetry which relates measurements in different collision systems. The expectations are contrasted with the existing data and a very good overall agreement is found. Finally, we propose precision observables to be measured at the LHC.

Free keywords: W bosons; high-energy hadronic collisions

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Ministry reporting: Yes

Reporting Year: 2017

JUFO rating: 0