set terminal postscript eps color enhanced font "Helvetica,16pt" size 8.6cm,6cm 

#set terminal pngcairo enhanced font "Helvetica,12pt" size 1920,1080

# common settings
set format y2 "%2.1f"
#set format x "%2.0f"
set tics scale 2
set tics nomirror
set ytics 50
set y2tics 0.1
set mytics 5
set my2tics 2
set mxtics 2
set yrange [0.75*241.125082 :1.4*241.125082 ]
set y2range [0.75:1.4]
set xrange [-2.5:2.5]
set border linewidth 1
#set grid

set xlabel "Timing separation, {/Symbol t} (ns)"
set ylabel "Two-photoevent coincidences"
set y2label "g^{(2)}({/Symbol t})" rotate by -90

set output "g2.eps"
#set output "g2.png"
set samples 10000

g2(x) = base+peak*exp(-2*abs(x)/wid)
peak = 72.7350429 #+/- 25.3066536 (34.79%) (init = 48.53894)
#cen = 387.453309 #+/- 0.03962999 (0.01%) (init = 387.475)
wid = 0.32008575 #+/- 0.13837505 (43.23%) (init = 0.5)
base = 241.125082 #+/- 0.88029335 (0.37%) (init = 242.6947)

set label "{/Symbol a} Her" at screen 0.65, 0.85

plot "AlphaHer_g2_128psbin_4shift.txt" using ($1-387.475):2:(sqrt($2)) with yerrorbars lw 2 lc rgb "red" notitle, g2(x) with lines lw 3 lc rgb "black" notitle


reset