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--- 2015:groups:higgs:dmhiggs:eftdm [2015/07/06 12:19]
andreas.goudelis
+++ 2015:groups:higgs:dmhiggs:eftdm [2015/08/11 11:52] (current)
michele.frigerio
@@ Line 3: / Line 3: @@
 **Members:**  Benjamin Fuks, Nishita Desai, Giacomo Polesello, Sanjoy Biswas, Suchita Kulkarni, Dipan Sengupta, Björn Herrmann, Daniel Schmeier, Daniele Barducci, Michele Frigerio, Aoife Bharucha, Genevieve Belanger
-** Main idea **
+** Main idea: **
-  * Would an observed excess of j+MET events allow for a distinction of the underlying model? Most likely candidate we could think of during our discussions: derivative couplings arising, e.g., in composite Higgs models.
+Would an observed excess of j+MET events allow for a distinction of the underlying model? Can the monojet pT distribution differentiate among different SM-DM couplings? An enhancement of the signal for large pT occurs if the coupling is proportional to the exchanged momentum; this happens for a derivative coupling, typically encountered, e.g., in compositeness models.
+** Simplest example: **
+The SM plus one singlet scalar DM, including a dim-6 operator coupling the Higgs doublet to the DM.
+A recent reference on this model: http://inspirehep.net/record/1341060?ln=en , see section 3.1.1, in particular eq.(3.3) for the Higgs-DM-DM coupling, if somebody is interested to generate the related pT distribution...
+A preliminary study of the monojet signature in this model was performed in the master thesis by Sylvain Lacroix (2013, in French): see section 3.9 for the case without derivative coupling, and section 4.3 for the addition of the derivative operator.
+Notes by M.Frigerio including motivations, the simplest model, and two non-minimal models are available here: {{:2015:groups:higgs:dmhiggs:monojetpt.pdf|}}
 **Useful references**
@@ Line 19: / Line 28: @@
   * The ATLAS/CMS Dark Matter forum summary
 http://arxiv.org/abs/1507.00966
+  * A relevant MSc thesis from a student of Michele's (in French)
+{{:2015:groups:higgs:dmhiggs:rapport.pdf|}}
 **Tools**
@@ Line 24: / Line 36: @@
 https://feynrules.irmp.ucl.ac.be/wiki/DMsimp
-==== Effect of derivative couplings on dark matter collider searches ====
+  * FeynRules (with corresponding CalcHEP and UFO) model files for the singlet model, with an effective g-g-h vertex implemented for h production
+{{:2015:groups:higgs:dmhiggs:compositedmleshouches.tar|}}
-Can the monojet pT distribution differentiate among different SM-DM couplings?
-An enhancement of the signal for large pT occurs if the coupling is proportional to the exchanged momentum; this happens for a derivative coupling.
-== Simplest example: ==
-The SM plus one singlet scalar DM, including a dim-6 operator coupling the Higgs doublet to the DM.
-A recent reference on this model: http://inspirehep.net/record/1341060?ln=en , see section 3.1.1, in particular eq.(3.3) for the Higgs-DM-DM coupling, if somebody is interested to generate the related pT distribution...
-A preliminary study of the monojet signature in this model was performed in the master thesis by Sylvain Lacroix (2013, in French): see section 3.9 for the case without derivative coupling, and section 4.3 for the addition of the derivative operator.
+**Micromegas results**
+{{:2015:groups:higgs:dmhiggs:scdm-micro.tar.gz|}}

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