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2013:groups:higgs:hel [2013/06/19 17:54] minho.son |
2013:groups:higgs:hel [2013/06/20 12:04] filip.moortgat [Concrete projects:] |
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- | ===== Higgs Effective Lagrangian ===== | + | ====== Higgs Effective Lagrangian ====== |
- | Interested people: Roberto, Filip, Benjamin, Jamison, Sabine, Kirtimaan, Beranger, Minho ... (please add your name!) | ||
- | General list of topics can be found below. | + | Definition of the Effective Lagrangian can be found here: [[http://arxiv.org/abs/arXiv:1303.3876|1303.3876]] |
+ | and references therein. | ||
- | ==== Concrete projects: ==== | + | A more general list of topics that was discussed in Les Houches can be found below. |
- | 1) constraints from TGC coming from LEP1, LEP2, LHC. | ||
- | To do: - literature study (Martin, ...) | + | ===== Concrete projects: ===== |
+ | |||
+ | |||
+ | === 1) constraints on Electroweak Effective Operators from LEP1&2 (incl. TGC), LHC. === | ||
+ | |||
+ | Interested people: Adam, Roberto, Rohini, Maggie, Kirtimaan, Veronica, Massironi, Bondu ... (please add your name!) | ||
+ | |||
+ | To do: | ||
+ | - literature study | ||
- "cleaning" the connection with LEP2 | - "cleaning" the connection with LEP2 | ||
- | - including Zgamma results from LEP2 | + | - including Zgamma results from LEP2 |
- | - extrapolation to LHC14 (and ILC)? | + | - matching between parametrization of TGC's and operators of the Higgs Effective Lagrangian |
- | - study precision with which the anomalous HVV vertex can be probed (difft. distributions, asymmetries, ...) (Rohini, Maggie, Kirtimaan) | + | - study precision with which the anomalous HVV vertex can be probed (difft. distributions, asymmetries, ...). Pay attention to the fact that the EWK corrections to the WZ production are still missing. |
- | - pay attention to the fact that the EWK corrections to the WZ production are still missing | + | - combination of constraints (interplay between Higgs coupling, TGC measurements and EWK precision constraints) and extrapolation to LHC14 (and ILC). |
+ | |||
+ | |||
+ | Relevant literature: [[http://arxiv.org/abs/arXiv:1306.2573|1306.2573]], [[http://arxiv.org/abs/arXiv:1302.3415|1302.3415]] | ||
+ | === 2) map operators to experimental observables. === | ||
- | 2) map operators to experimental observables. | + | Interested people: Adam, Roberto, Filip, ... (please add your name!) |
- | To do: - finalize the mapping for all operators | + | To do: |
+ | - finalize the mapping for all operators | ||
- is the current presentation of experimental results (kappa's) sufficient (how to treat kappa_gamma, kappa_g?) | - is the current presentation of experimental results (kappa's) sufficient (how to treat kappa_gamma, kappa_g?) | ||
- | 3) dipole operators (top) | ||
- | To do: - study processes ttW, Zh, tth, tWb (Rogerio, Sasha, Edward) | + | === 3) dipole operators (top) === |
- | - constraints from b->s gamma etc (Andi, ...) | + | |
- | - constraints from top differential cross section dsigma/dpt, dsigma/dM, ... (Michael, ...) | + | |
- | - pay attention to unitarity limit/strong coupling scale | + | |
+ | Interested people: Rogerio, Sasha, Edward, Michael, Andi, ... (please add your name!) | ||
+ | To do: | ||
+ | - study processes ttW, Zh, tth, tWb | ||
+ | - study constraints from top differential cross section (dsigma/dpt, dsigma/dM, ...) on dipole moments (update to 8 TeV the current analysis and extrapolate to 14 TeV) | ||
- | ==== Topics: ==== | + | Relevant literature: [[http://arxiv.org/abs/arXiv:1107.3143|1107.3143]], [[http://arxiv.org/abs/arXiv:1201.6670|1201.6670]], [[http://arxiv.org/abs/arXiv:1010.6304|1010.6304]], [[http://arxiv.org/abs/arXiv:1210.2570|1210.2570]], [[http://arxiv.org/abs/arXiv:1207.0339|1207.0339]], [[http://arxiv.org/abs/arXiv:1205.1065|1205.1065]], [[http://arxiv.org/abs/arXiv:1105.0117|1105.0117]] |
- | 1) Add G^2HH operators in Powheg (done) | ||
- | 2) Implement (bosonic) effective operators into MADGRAPH (done) and Calchep (Sasha) | + | === 4) Implementation of Effective Lagrangian in Powheg for single Higgs production === |
+ | |||
+ | Interested people: Roberto, Pietro, A. Vicini, Filip, ... (please add your name!) | ||
+ | |||
+ | To do: | ||
+ | - include GGHH operators | ||
+ | - study sensitivity on loop versus contact interactions using Higgs pT distribution | ||
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+ | |||
+ | |||
+ | ==== General Topics that were discussed at Les Houches ==== | ||
+ | |||
+ | 1) Add G^2HH operators in Powheg | ||
+ | |||
+ | 2) Implement (bosonic) effective operators into MADGRAPH (done) and Calchep (done) | ||
3) Derive constraints from existing experiments (including processes with no Higgs, like TGC) | 3) Derive constraints from existing experiments (including processes with no Higgs, like TGC) | ||
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2) consider prospects for top+higgs processes at the LHC (also ttZ) | 2) consider prospects for top+higgs processes at the LHC (also ttZ) | ||
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