2017:groups:np:eftinterference
Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
|
2017:groups:np:eftinterference [2017/06/17 09:37] benjamin.fuks |
2017:groups:np:eftinterference [2017/06/21 16:19] francesco.riva |
||
|---|---|---|---|
| Line 1: | Line 1: | ||
| ====== Non-interference in dimension 6 EFT: beyond LO & 2 to 2 processes ====== | ====== Non-interference in dimension 6 EFT: beyond LO & 2 to 2 processes ====== | ||
| - | People interested: Francesco Riva, Ken Mimasu, Benjamin Fuks | + | People interested (add your name): Francesco Riva, Ken Mimasu, Benjamin Fuks, Julia Harz, Kristin Lohwasser, Fabio Maltoni, Jorge de Blas, Daniele Barducci, Minho Son, Haiying Cai |
| Investigate the impact of higher order corrections or additional radiation on high energy 2->2 processes involving dimension 6 EFT operators that have been shown not to interfere at leading order. | Investigate the impact of higher order corrections or additional radiation on high energy 2->2 processes involving dimension 6 EFT operators that have been shown not to interfere at leading order. | ||
| A simple test case may be $W^+ W^-$ production at a lepton collider. Here the EW corrections including dimension 6 operators have not been calculated but an extra photon (or any extra vector) emission would alter the helicity structure and is part of the higher order contribution. | A simple test case may be $W^+ W^-$ production at a lepton collider. Here the EW corrections including dimension 6 operators have not been calculated but an extra photon (or any extra vector) emission would alter the helicity structure and is part of the higher order contribution. | ||
| + | |||
| + | We focus on the operator that generates transverse helicity, schematically O_3W= W_{munu}^3 | ||
| References: | References: | ||
| * "Helicity selection rules and noninterference for BSM amplitudes" [[https://arxiv.org/abs/1607.05236| (arXiv)]] | * "Helicity selection rules and noninterference for BSM amplitudes" [[https://arxiv.org/abs/1607.05236| (arXiv)]] | ||
| - | * Rivet tool implementing stage 1 and 0 selections maintained by LHCHXSWG [[https://svnweb.cern.ch/cern/wsvn/lhchiggsxs/repository/TemplateXS/| (link)]] | + | * "Testing gluon selfinteractions in three jet events at hadron colliders" [[https://arxiv.org/abs/hep-ph/9312363| (arXiv)]] |
| + | |||
| + | Helicity amplitude from madgraph (2 to 2 and 2 to 3): | ||
| + | - https://phystev.cnrs.fr/wiki/_media/2017:groups:np:ee_ww_sm_only.tgz | ||
| + | - https://phystev.cnrs.fr/wiki/_media/2017:groups:np:ee_ww_int_only.tgz | ||
| + | - https://phystev.cnrs.fr/wiki/_media/2017:groups:np:ee_ww_sm_dim6.tgz | ||
| + | |||
| + | |||
| + | Benchmark parameters from CLIC [https://arxiv.org/abs/1608.07537 -- Updated baseline for a staged Compact Linear Collider] | ||
| + | |||
| + | accelerator design foresees 80% electron polarisation. | ||
| + | |||
| + | stages running with different CME and luminosity: | ||
| + | {{:2017:groups:np:clic.jpg?direct&400|}} | ||
2017/groups/np/eftinterference.txt · Last modified: 2017/11/07 14:17 by francesco.riva
Page Tools
Except where otherwise noted, content on this wiki is licensed under the following license: Public Domain
