Photon-initiated processes at high mass

Harland-Lang, L.A.; Khoze, V.A.; Ryskin, M.G.

doi:10.1103/physrevd.94.074008

Photon-initiated processes at high mass

Harland-Lang, L.A.; Khoze, V.A.; Ryskin, M.G.

Authors

L.A. Harland-Lang

V.A. Khoze

M.G. Ryskin

Abstract

We consider the influence of photon-initiated processes on high-mass particle production. We discuss in detail the photon parton distribution function (PDF) at relatively high parton x, relevant to such processes, and evaluate its uncertainties. In particular we show that, as the dominant contribution to the input photon distribution is due to coherent photon emission, at phenomenologically relevant scales the photon PDF is already well determined in this region, with the corresponding uncertainties under good control. We then demonstrate the implications of this result for the example processes of high-mass lepton and W boson pair production at the LHC and FCC. While for the former process the photon-initiated contribution is expected to be small, in the latter case we find that it is potentially significant, in particular at larger masses.

Citation

Harland-Lang, L., Khoze, V., & Ryskin, M. (2016). Photon-initiated processes at high mass. Physical Review D, 94(7), Article 074008. https://doi.org/10.1103/physrevd.94.074008

Journal Article Type	Article
Online Publication Date	Oct 6, 2016
Publication Date	Oct 6, 2016
Deposit Date	Dec 2, 2016
Publicly Available Date	Jan 26, 2017
Journal	Physical Review D
Print ISSN	2470-0010
Electronic ISSN	2470-0029
Publisher	American Physical Society
Peer Reviewed	Peer Reviewed
Volume	94
Issue	7
Article Number	074008
DOI	https://doi.org/10.1103/physrevd.94.074008

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