Update zdc_pi0_plots.py

\, to \\,

Author: sebouh137

benchmarks/zdc_pi0/analysis/zdc_pi0_plots.py

@@ -224,7 +224,7 @@ def gauss(x, A,mu, sigma):
                                  sigma=dresvals, maxfev=10000)
 xx=np.linspace(55, 200, 100)
 #plt.plot(xx, fnc(xx, *coeff), label=f'fit:  ${coeff[0]*1000:.1f}+{coeff[1]*1000:.4f}\\times E$ MeV')
-plt.plot(xx, fnc(xx, *coeff), label=f'fit:  $({coeff[0]*1000:.1f}+{coeff[1]*1000:.4f}\\times [E\,in\,GeV])$ MeV')
+plt.plot(xx, fnc(xx, *coeff), label=f'fit:  $({coeff[0]*1000:.1f}+{coeff[1]*1000:.4f}\\times [E\\,in\\,GeV])$ MeV')
 plt.legend()