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2015:groups:higgs:morehiggs:scalartt [2015/06/17 08:41] aram.apyan |
2015:groups:higgs:morehiggs:scalartt [2015/06/17 21:10] aurelio.juste |
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Maltoni et al. implementation of HZ production in Madgraph5_aMC@NLO. The ZH production cross section looks to be O(1) fb in their 2HDM benchmark scenarios with masses of 350, 440 and 500 GeV. This is to be compared with a recent calculation by Frixione et al. ([[http://arxiv.org/abs/1504.03446]]) of the background ttZ process quoting O(500) fb cross sections at LO with additional, non-negligible k-factors. | Maltoni et al. implementation of HZ production in Madgraph5_aMC@NLO. The ZH production cross section looks to be O(1) fb in their 2HDM benchmark scenarios with masses of 350, 440 and 500 GeV. This is to be compared with a recent calculation by Frixione et al. ([[http://arxiv.org/abs/1504.03446]]) of the background ttZ process quoting O(500) fb cross sections at LO with additional, non-negligible k-factors. | ||
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+ | [[http://arxiv.org/abs/hep-ph/0106293]] | ||
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+ | Out usual suspects return with predictions for associated production of a Higgs with a top. It is shown that this production mode overtakes ttH for masses around 300 GeV. | ||
[[http://arxiv.org/abs/1504.04630]] | [[http://arxiv.org/abs/1504.04630]] | ||
- | Recent study revisiting prospects at the LHC finding them not so promising when considering potential detector effects. In the pure ttbar case, they conclude that although with a lot of integrated luminosity, one may have the statistical power to see such a signal, the % level deviations in the tt invariant mass spectrum are likely to be outweighed by typical systematic uncertainties. The bb/tt associated production modes are also explored and are argued to merit further study at 13 TeV. Another potential channel of tH associated production is breifly mentioned (see next reference). | + | Recent study revisiting prospects at the LHC finding them not so promising when considering potential detector effects. In the pure ttbar case, they conclude that although with a lot of integrated luminosity, one may have the statistical power to see such a signal, the % level deviations in the tt invariant mass spectrum are likely to be outweighed by typical systematic uncertainties. The bb/tt associated production modes are also explored and are argued to merit further study at 13 TeV. Another potential channel of tH associated production is breifly mentioned (see previous reference). |
- | [[http://arxiv.org/abs/hep-ph/0106293]] | + | [[http://arxiv.org/abs/1504.07617]] |
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+ | Recent study on prospects for heavy Higgs boson searches in associated production, covering bbH/A, ttH/A, with H/A->tt, and H+tb, H->tb. It includes estimates for LHC 14 TeV and a 100 TeV pp collider. | ||
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+ | [[http://arxiv.org/abs/1504.04605]] | ||
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+ | ATLAS Run 1 search for 4-top production in the same-sign dilepton channel. | ||
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+ | [[http://arxiv.org/abs/1505.04306]] | ||
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+ | ATLAS Run 1 search for 4-top production in the single-lepton channel. | ||
- | Out usual suspects return with predictions for associated production of a Higgs with a top. It is shown that this production mode overtakes ttH for masses around 300 GeV. |