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2017:groups:tools:contur [2017/09/20 22:55]
jonathan.butterworth
2017:groups:tools:contur [2017/09/21 10:24]
jonathan.butterworth
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   * [[contur#​2HDM Studies|2HDM Studies]]   * [[contur#​2HDM Studies|2HDM Studies]]
   * [[2017:​groups:​higgs:​fxsnp:​susycascades|FXS:​ Higgs production from SUSY cascades]]   * [[2017:​groups:​higgs:​fxsnp:​susycascades|FXS:​ Higgs production from SUSY cascades]]
-  * [[contur#​Light Scalar Particles|Light Scalar Particles]]+  * [[Contur for Light Scalar Particles]]
   * [[Explanation of Contur plot format]]   * [[Explanation of Contur plot format]]
 -------------------------------------------------------------------------------- --------------------------------------------------------------------------------
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 repository, hopefully in next release. The exception is the 5-point vertices which are used in the CP-even model: repository, hopefully in next release. The exception is the 5-point vertices which are used in the CP-even model:
  
-<pre>Warning: Lorentz structure VVVVS ( g g g g phiNP ) in V_49 is not supported. + 
-Warning: Lorentz structure VVSSS ( W- W+ H H phiNP ) in V_118 is not supported. +   Warning: Lorentz structure VVVVS ( g g g g phiNP ) in V_49 is not supported. 
-Warning: Lorentz structure VVVVS ( a a W- W+ phiNP ) in V_122 is not supported. +   ​Warning: Lorentz structure VVSSS ( W- W+ H H phiNP ) in V_118 is not supported. 
-Warning: Lorentz structure VVVVS ( W- W- W+ W+ phiNP ) in V_126 is not supported. +   ​Warning: Lorentz structure VVVVS ( a a W- W+ phiNP ) in V_122 is not supported. 
-Warning: Lorentz structure VVVVS ( a W- W+ Z phiNP ) in V_150 is not supported. +   ​Warning: Lorentz structure VVVVS ( W- W- W+ W+ phiNP ) in V_126 is not supported. 
-Warning: Lorentz structure VVSSS ( Z Z H H phiNP ) in V_156 is not supported. +   ​Warning: Lorentz structure VVVVS ( a W- W+ Z phiNP ) in V_150 is not supported. 
-Warning: Lorentz structure VVVVS ( W- W+ Z Z phiNP ) in V_160 is not supported. +   ​Warning: Lorentz structure VVSSS ( Z Z H H phiNP ) in V_156 is not supported. 
-</​pre>​+   ​Warning: Lorentz structure VVVVS ( W- W+ Z Z phiNP ) in V_160 is not supported. 
  
 These are currently ignored - hope they aren't a major effect (they don't look like they should be...) These are currently ignored - hope they aren't a major effect (they don't look like they should be...)
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 === Some (preliminary!) results with Contur === === Some (preliminary!) results with Contur ===
 +
 +Suggested parameter ranges from Sylvain:
 +
 +
 +   ​CP-even scalar:
 +   mphi in [10, 100] GeV
 +   f0B in [1, 10] TeV
 +   f0W in [1, 10] TeV
 +   f0H in [1, 10] TeV
 +
 +   ​CP-odd scalar:
 +   mphi in [10, 100] GeV
 +   f0B in [1, 10] TeV
 +   f0W in [1, 10] TeV
 +
 +   For each case, all the other f's should be set to very large values. ​
 +
 +So, here is a scan using these ranges for the CP-odd scalar model (f0 value labelled $\Lambda$ on the vertical axis, $M_\phi$ on the horizontal. ​
 +{{2017:​groups:​tools:​colorbarkey.png}}
 +
 +{{:​2017:​groups:​tools:​combinedcl_.png?​400|}}
 +
 +... so this is looking pretty promising. Everything excluded except the lowest mass/​highest scale. This needs to be carefully checked, of course. All the yellow region above is excluded by the ATLAS diphoton cross sections: [[http://​inspirehep.net/​record/​1591327|arXiv:​1704.03839]]. If those are not included, the [[http://​inspirehep.net/​record/​1448301|ATLAS $Z+\gamma$ measurements]] (in dilepton+photon and MET+photon) have quite some power on their own, see below.
 +
 +{{:​2017:​groups:​tools:​combinedcl_zg.png?​400|}}
 +Z+photon
 +
 +{{:​2017:​groups:​tools:​combinedcl_metg.png?​400|}}
 +Missing ET + photon
 +
 +Remember, big caveat on this is that the data is assumed to exactly agree with the SM, which means (given we only really know that these data are //​consistent//​ with the SM) that we are neglected the SM theory uncertainties.
 +
 +== Older Stuff ==
  
 Not really sure of what sensible parameter ranges would be at the moment, but here is an example run for CP-Odd scalar with some 8 TeV data. I (Jon) set $m_\phi = 80$ GeV, and setting the mass scales for the effective couplings at 50 or 100 TeV as follows: $f0B, f0W, f0H, f0gam, f0Z = 50$ TeV, $f0G, f0u, f0d, f0l = 100$ TeV. Total cross section is $4.4 pb^{-1}$. Not really sure of what sensible parameter ranges would be at the moment, but here is an example run for CP-Odd scalar with some 8 TeV data. I (Jon) set $m_\phi = 80$ GeV, and setting the mass scales for the effective couplings at 50 or 100 TeV as follows: $f0B, f0W, f0H, f0gam, f0Z = 50$ TeV, $f0G, f0u, f0d, f0l = 100$ TeV. Total cross section is $4.4 pb^{-1}$.
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 Next step? Agree some sensible parameter ranges to scan, presumably mass and some subset of couplings; I can combine 7, 8 and 13 TeV limits, of course. Next step? Agree some sensible parameter ranges to scan, presumably mass and some subset of couplings; I can combine 7, 8 and 13 TeV limits, of course.
 +
 +
  
  
  
  
2017/groups/tools/contur.txt · Last modified: 2017/10/02 10:44 by jonathan.butterworth