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Photon-initiated processes at high mass

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

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L.A. Harland-Lang

V.A. Khoze

M.G. Ryskin


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.


Harland-Lang, L., Khoze, V., & Ryskin, M. (2016). Photon-initiated processes at high mass. Physical Review D, 94(7), Article 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


Published Journal Article (962 Kb)

Copyright Statement
Reprinted with permission from the American Physical Society: Physical Review D 94, 074008 © (2016) by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.

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