How to create curvy L in ROOT

ROOT
1

Hi experts,
How can I creat curvy L in cern root.
In Latex lange, it can be created by:
\usepackage{ amssymb }
\mathcal{L}
or
\usepackage{ mathrsfs }
\mathscr{L}
How about that in cern root through TLatex?

2 
 TLatex *lat = new TLatex();
 lat->DrawLatex(0.5,0.5,"\\mathscr{L}");

Note the double backslash.

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