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2019:groups:higgs:lightscalars [2019/06/28 09:07]
jonathan.butterworth
2019:groups:higgs:lightscalars [2019/06/28 11:15] (current)
suzanne.gascon
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   * Quick contur study using the BNT ALP UFO file. All couplings set to zero except the photons which is scanned over. {{ :​2019:​groups:​higgs:​combinedhybrid.pdf | 2D scan }}. Over a wide range of $\phi$ masses ($M_{ALP}$ on the plot) the sensitivity extends down to $C_{\gamma\gamma}/​\Lambda \approx 3$ TeV$^{-1}$. Here the scan is performed over the following ranges: $m_a:$ 1 to 50 GeV, $g_{a\gamma\gamma}$:​ 10 to $10^{-6}$, $g_{aZ\gamma}$:​ 10 to $10^{-6}$ ​   ​   * Quick contur study using the BNT ALP UFO file. All couplings set to zero except the photons which is scanned over. {{ :​2019:​groups:​higgs:​combinedhybrid.pdf | 2D scan }}. Over a wide range of $\phi$ masses ($M_{ALP}$ on the plot) the sensitivity extends down to $C_{\gamma\gamma}/​\Lambda \approx 3$ TeV$^{-1}$. Here the scan is performed over the following ranges: $m_a:$ 1 to 50 GeV, $g_{a\gamma\gamma}$:​ 10 to $10^{-6}$, $g_{aZ\gamma}$:​ 10 to $10^{-6}$ ​   ​
   * Checking at an example point in the above scan, $M_{ALP} = 1.8$ GeV, $C_{\gamma\gamma}/​\Lambda = 5.2$ TeV$^{-1}$, all other couplings set to zero. The $\phi$ decays 100% to $\gamma\gamma$ as expected (width $10^{-7}$ GeV). The main production mechanisms are $\gamma, W$ or $Z$ + $\phi$. $gg \rightarrow \phi$ is zero. The different subprocess cross sections are visible in the example Herwig output file: {{ :​2019:​groups:​higgs:​lhc-s101-runpoint_0095.out.txt | lhc-s101-runpoint_0095.out}}   * Checking at an example point in the above scan, $M_{ALP} = 1.8$ GeV, $C_{\gamma\gamma}/​\Lambda = 5.2$ TeV$^{-1}$, all other couplings set to zero. The $\phi$ decays 100% to $\gamma\gamma$ as expected (width $10^{-7}$ GeV). The main production mechanisms are $\gamma, W$ or $Z$ + $\phi$. $gg \rightarrow \phi$ is zero. The different subprocess cross sections are visible in the example Herwig output file: {{ :​2019:​groups:​higgs:​lhc-s101-runpoint_0095.out.txt | lhc-s101-runpoint_0095.out}}
-  * Some more scans as suggested by Aoife and Jose:​{{:​2019:​groups:​higgs:​combinedhybrid50.png?​200|}} {{:​2019:​groups:​higgs:​combinedhybrid10.png?​200|}}+  * Some more scans as suggested by Aoife and Jose: 
 +  * {{:​2019:​groups:​higgs:​combinedhybrid50.png?​200|}} ​ 
 +  * {{:​2019:​groups:​higgs:​combinedhybrid30.png?​200|}} 
 +  * {{:​2019:​groups:​higgs:​combinedhybrid10.png?​200|}}
  
 For instance, Higgs composite models with additional light scalars:​[[https://​arxiv.org/​pdf/​1810.11142.pdf|1710.11142]],​ [[https://​arxiv.org/​pdf/​1902.08690.pdf|1902.08690]]. For instance, Higgs composite models with additional light scalars:​[[https://​arxiv.org/​pdf/​1810.11142.pdf|1710.11142]],​ [[https://​arxiv.org/​pdf/​1902.08690.pdf|1902.08690]].
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 Please send to Gregory, Susan and Jose by Thursday morning (so we can give a synthesis to the speaker by ~Thursday noon and also circulate among us) Please send to Gregory, Susan and Jose by Thursday morning (so we can give a synthesis to the speaker by ~Thursday noon and also circulate among us)
  
 +Thank you all for all the work, and let's not stop here! {{ :​2019:​groups:​higgs:​suzannegregorylightscalarlhc2019slides.ppt | Here }} are the slides shown in the summary session on June 28, 2019.
2019/groups/higgs/lightscalars.1561705656.txt.gz · Last modified: 2019/06/28 09:07 by jonathan.butterworth