2017:groups:higgs:inter
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2017:groups:higgs:inter [2017/06/22 16:14] stefan.liebler |
2017:groups:higgs:inter [2017/06/23 10:05] olivier.mattelaer |
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| ===== Interference effects in the search for heavy Higgs bosons ===== | ===== Interference effects in the search for heavy Higgs bosons ===== | ||
| - | //Interested people: Stefan Liebler, Jérémie Quevillon, Sabine Kraml, Alexandra Carvalho [add your names]// | + | //Interested people: Stefan Liebler, Jérémie Quevillon, Sabine Kraml, Alexandra Carvalho, Ramona Gröber, Tetiana Berger-Hryn'ova, Fabio Maltoni, Olivier Mattelaer [add your names]// |
| Motivation: | Motivation: | ||
| Line 27: | Line 27: | ||
| Work plan: | Work plan: | ||
| - | - Calculate $d\sigma^X/dm_{VV}$ or $m_{HH}$ for $X=S,I_B$ and $I_H$ for the subsequent parameters and store them as a function of $m_{VV}/m_{HH}$ in a table: | + | - Calculate $d\sigma^X/dm_{VV}$ or $dm_{HH}$ for $gg\to VV/HH$ at LO QCD and at partonic level for $X=S,I_B$ and $I_H$ for the subsequent parameters and store them as a function of $m_{VV}/m_{HH}$ in a table that ranges from $m_\Phi-10\Gamma_\Phi$ to $m_\Phi+10\Gamma_\Phi$ with sufficient data points: |
| - | - $VV$: $c_ge^{i\theta_g}$, $m_\Phi$, $\Gamma_\Phi$, $\kappa_V$. | + | - $VV$: $c_ge^{i\theta_g}$, $m_\Phi$, $\Gamma_\Phi$, $\kappa_V$ (in a first step choose $\sqrt{1-\kappa_V^2}$ for the SM $HVV$ coupling). |
| - $HH$: $c_ge^{i\theta_g}$, $m_\Phi$, $\Gamma_\Phi$, $\lambda_{Hhh}, \lambda_{hhh}$ | - $HH$: $c_ge^{i\theta_g}$, $m_\Phi$, $\Gamma_\Phi$, $\lambda_{Hhh}, \lambda_{hhh}$ | ||
| - | - Read in the table (with Mathematica) and calculate relative correction factors named $(\eta^-,\eta^+,\eta)$, see slides, or apply a similar method (arXiv:1510.03450). | + | - Read in the table (with Mathematica) and calculate relative correction factors named $(\eta^-,\eta^+,\eta)$, see slides, or apply a similar method (e.g. arXiv:1510.03450) to quantify the relevance of the interferences. |
| + | - Try to classify the relevant regions, where interferences are of relevance (check also $\Gamma_\Phi/m_\Phi\cdot \sigma^S/\sigma^B$). | ||
| **References: ** | **References: ** | ||
2017/groups/higgs/inter.txt · Last modified: 2017/06/23 10:06 by olivier.mattelaer
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