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--- 2017:groups:higgs:inter [2017/06/22 01:22]
alexandra.carvalho
+++ 2017:groups:higgs:inter [2017/06/22 19:22]
fabio.maltoni
@@ Line 1: / Line 1: @@
 ===== 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, [add your names]//
 Motivation:
@@ Line 23: / Line 23: @@
 {{:2017:groups:higgs:img_20170620_183954.jpg?400| Blackboard}}
+Discussion 22/06/2017:
+Work plan:
+  - 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:
+  - $VV$: $c_ge^{i\theta_g}$, $m_\Phi$, $\Gamma_\Phi$, $\kappa_V$ (in a first step choose $\sqrt{1-\kappa_V^2}$ for the SM $HVV$ coupling).
+  - $HH$: $c_ge^{i\theta_g}$, $m_\Phi$, $\Gamma_\Phi$, $\lambda_{Hhh}, \lambda_{hhh}$
+  - 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: **

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