2015:groups:sm:photons
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2015:groups:sm:photons [2015/06/09 08:18] suzanne.gasconshotkin |
2015:groups:sm:photons [2015/07/14 08:28] (current) philippe.gras Added instructions for CERN account |
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| ====== Photon studies (isolation, fragmentation, resummation...) for direct photon measurements ====== | ====== Photon studies (isolation, fragmentation, resummation...) for direct photon measurements ====== | ||
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| + | //If you are interested in contributing please subscribe to the [[https://e-groups.cern.ch/e-groups/EgroupsSearch.do?searchValue=houches-2015-topics-sm-photon|mailing list]]. You will be asked to log in with your CERN account. If you don't have a CERN account, please fill [[https://account.cern.ch/account/Externals/RegisterAccount.aspx|this form]] to create a lightweight account.// | ||
| still under construction | still under construction | ||
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| References for above presentations (to be completed): | References for above presentations (to be completed): | ||
| *Catani Fontannaz Guillet Pilon arXiv:1306.6498 [hep-ph]. | *Catani Fontannaz Guillet Pilon arXiv:1306.6498 [hep-ph]. | ||
| - | *T. Gehrmann, N. Greiner, and G. Heinrich, Photon isolation effects at NLO in gamma gamma + jet final states in hadronic collisions, JHEP 1306 (2013) 058, | + | *T. Gehrmann, N. Greiner, and G. Heinrich, Photon isolation effects at NLO in gamma gamma + jet final states in hadronic collisions, JHEP 1306 (2013) 058,arXiv:1303.0824 [hep-ph]. |
| - | arXiv:1303.0824 [hep-ph]. | + | |
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| 2) Is unphysical behaviour under 'mismatch' of direct and frag component orders (as reported in LH2013 by Cieri and deFlorian) for gamma gamma, gamma gamma + jet and W/Zgamma also generalized to other processes? | 2) Is unphysical behaviour under 'mismatch' of direct and frag component orders (as reported in LH2013 by Cieri and deFlorian) for gamma gamma, gamma gamma + jet and W/Zgamma also generalized to other processes? | ||
| - | --Gamma + jet with DIPHOX shown June 6 (Gudrun)[yes] (Is it possible to have 'LO-LO' to check? | + | --Gamma + jet with JETPHOX shown June 6 (Gudrun)[yes] (Is it possible to have 'LO fragmention function-LO matrix element' to check?) |
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| + | --LO fragmentation function possible in time horizon for proceedings (Jean-Philippe, Michel F.)? | ||
| B) Fragmentation: How important is the 'transverse' (or non-collinear) vs. 'longitudinal' (or collinear) fragmentation? | B) Fragmentation: How important is the 'transverse' (or non-collinear) vs. 'longitudinal' (or collinear) fragmentation? | ||
| - | FO calculators (e.g. PHOX family, MCFM...) only have longitudinal, HO codes with PS (e.g. POWHEG with MiNLO) have both. While waiting for gamma gamma in POWHEG with MiNLO (probably not for proceedings), use Vgamma (and maybe later Zgamma), MCFM vs. POWHEG + MiNLO, as 'test bench' to evaluate difference in integrated xs, differential observables and comparison with CMS/ATLAS data (Mauro/Fulvio, Ciaran et al, all) | + | FO calculators (e.g. PHOX family, MCFM, GoSam, ...) only have longitudinal, HO codes with PS (e.g. POWHEG with MiNLO) have both. While waiting for gamma gamma in POWHEG with MiNLO (probably not for proceedings), use Vgamma (and maybe later Zgamma), MCFM vs. POWHEG + MiNLO, as 'test bench' to evaluate difference in integrated xs, differential observables and comparison with CMS/ATLAS data (Mauro/Fulvio, Ciaran et al, all) |
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| 2)Survey of direct photon measurements esp Vgamma | 2)Survey of direct photon measurements esp Vgamma | ||
| + | * Discussion of what to include in a few slides for the summary session tomorrow | ||
2015/groups/sm/photons.1433830739.txt.gz · Last modified: 2015/06/09 08:18 by suzanne.gasconshotkin
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