Photon-initiated processes at high mass
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 contributi...
| Main Authors: | , , |
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| Format: | Journal article |
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American Physical Society
2016
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| _version_ | 1797059695774531584 |
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| author | Harland-Lang, LA Khoze, VA Ryskin, MG |
| author_facet | Harland-Lang, LA Khoze, VA Ryskin, MG |
| author_sort | Harland-Lang, LA |
| collection | OXFORD |
| description | 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. |
| first_indexed | 2024-03-06T20:07:52Z |
| format | Journal article |
| id | oxford-uuid:2985b3f9-8d17-48cd-9b90-71e85a21d6e0 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T20:07:52Z |
| publishDate | 2016 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:2985b3f9-8d17-48cd-9b90-71e85a21d6e02022-03-26T12:19:37ZPhoton-initiated processes at high massJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2985b3f9-8d17-48cd-9b90-71e85a21d6e0Symplectic Elements at OxfordAmerican Physical Society2016Harland-Lang, LAKhoze, VARyskin, MGWe 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. |
| spellingShingle | Harland-Lang, LA Khoze, VA Ryskin, MG Photon-initiated processes at high mass |
| title | Photon-initiated processes at high mass |
| title_full | Photon-initiated processes at high mass |
| title_fullStr | Photon-initiated processes at high mass |
| title_full_unstemmed | Photon-initiated processes at high mass |
| title_short | Photon-initiated processes at high mass |
| title_sort | photon initiated processes at high mass |
| work_keys_str_mv | AT harlandlangla photoninitiatedprocessesathighmass AT khozeva photoninitiatedprocessesathighmass AT ryskinmg photoninitiatedprocessesathighmass |