def hits_xy_up():
#hits on up spectrometer detector in xy
ypos = 14.2 # cm
xybin = 0.1 # cm
xysiz = 22 # cm
can = ut.box_canvas()
hXY = ut.prepare_TH2D("hXY", xybin, -xysiz/2., xysiz/2., xybin, ypos-(xysiz/2.), ypos+(xysiz/2.))
nevt = tree.GetEntries()
#nevt = 10000
hits = BoxCalV2Hits("up", tree)
for ievt in xrange(nevt):
tree.GetEntry(ievt)
for ihit in xrange(hits.GetN()):
hXY.Fill(hits.GetX(ihit)/10, hits.GetY(ihit)/10)
#print hits.GetX(ihit)/10, hits.GetY(ihit)/10
hXY.SetMinimum(0.98)
hXY.SetContour(300)
hXY.Draw()
gPad.SetGrid()
gPad.SetLogz()
ut.invert_col(rt.gPad)
can.SaveAs("01fig.pdf")
def hits_xy_phot():
#hits on photon detector in xy
xybin = 0.1
xysiz = 22
can = ut.box_canvas()
hXY = ut.prepare_TH2D("hXY", xybin, -xysiz/2., xysiz/2., xybin, -xysiz/2., xysiz/2.)
nevt = tree.GetEntries()
#nevt = 10000
hits = BoxCalV2Hits("phot", tree)
for ievt in xrange(nevt):
tree.GetEntry(ievt)
for ihit in xrange(hits.GetN()):
hXY.Fill(hits.GetX(ihit)/10, hits.GetY(ihit)/10)
hXY.SetMinimum(0.98)
hXY.SetContour(300)
hXY.Draw()
gPad.SetGrid()
gPad.SetLogz()
ut.invert_col(rt.gPad)
can.SaveAs("01fig.pdf")
def hits_xy_s1():
#hits on s1 tagger in xy
#bin in mm
xybin = 3
#tagger location in x and z
xpos = 528.56 # mm
zpos = -24000 # mm
rot_y = -0.018332 # rad, rotation in x-z plane by rotation along y
#rot_y = 0
#front area, mm
xysiz = 430
#minimal z to select the front face
zmin = -5 # mm
#minimal energy for the hit
emin = 1 # GeV
can = ut.box_canvas()
hXY = ut.prepare_TH2D("hXY", xybin, -xysiz / 2., xysiz / 2., xybin,
-xysiz / 2., xysiz / 2.)
#nevt = tree.GetEntries()
nevt = 1000000
hits = BoxCalV2Hits("lowQ2s1", tree)
for ievt in xrange(nevt):
tree.GetEntry(ievt)
for ihit in xrange(hits.GetN()):
hit = hits.GetHit(ihit)
hit.GlobalToLocal(xpos, 0, zpos, rot_y)
if hit.z < zmin: continue
#if hit.en < emin: continue
hXY.Fill(hit.x, hit.y)
ut.put_yx_tit(hXY, "#it{x} (mm)", "#it{y} (mm)")
ut.set_margin_lbtr(gPad, 0.11, 0.08, 0.01, 0.12)
hXY.SetMinimum(0.98)
hXY.SetContour(300)
hXY.Draw()
gPad.SetGrid()
gPad.SetLogz()
ut.invert_col(rt.gPad)
can.SaveAs("01fig.pdf")
def hits_xy_s2():
#hits on s2 tagger in xy
#Tagger 2 position
xpos = 661.88 # mm
zpos = -37000 # mm
rot_y = -0.018332 # rad
#front area, mm
xysiz = 330
#minimal z to select the front face
zmin = -5 # mm
#bin in mm
xybin = 3
can = ut.box_canvas()
hXY = ut.prepare_TH2D("hXY", xybin, -xysiz / 2., xysiz / 2., xybin,
-xysiz / 2., xysiz / 2.)
#nevt = tree.GetEntries()
nevt = 100000
hits = BoxCalV2Hits("lowQ2s2", tree)
for ievt in xrange(nevt):
tree.GetEntry(ievt)
for ihit in xrange(hits.GetN()):
hit = hits.GetHit(ihit)
hit.GlobalToLocal(xpos, 0, zpos, rot_y)
if hit.z < zmin: continue
#if hit.en < emin: continue
hXY.Fill(hit.x, hit.y)
hXY.SetMinimum(0.98)
hXY.SetContour(300)
hXY.Draw()
gPad.SetGrid()
gPad.SetLogz()
ut.invert_col(rt.gPad)
can.SaveAs("01fig.pdf")
def hits_en_z_s1():
#energy along the z position of the hit in s1
#tagger location in x and z
xpos = 528.56 # mm
zpos = -24000 # mm
rot_y = -0.018332 # rad, rotation in x-z plane by rotation along y
zbin = 0.05 # cm
zmax = 2 # cm
#zmin = -36 # cm
zmin = -2 # cm
ebin = 0.1
emin = 0
emax = 20
can = ut.box_canvas()
hEnZ = ut.prepare_TH2D("hEnZ", zbin, zmin, zmax, ebin, emin, emax)
ut.put_yx_tit(hEnZ, "#it{E} (GeV)", "#it{z} (cm)")
nevt = tree.GetEntries()
#nevt = 100000
hits = BoxCalV2Hits("lowQ2s1", tree)
for ievt in xrange(nevt):
tree.GetEntry(ievt)
for ihit in xrange(hits.GetN()):
hit = hits.GetHit(ihit)
hit.GlobalToLocal(xpos, 0, zpos, rot_y)
hEnZ.Fill(hit.z / 10, hit.en) # cm
hEnZ.SetMinimum(0.98)
hEnZ.SetContour(300)
hEnZ.Draw()
gPad.SetGrid()
gPad.SetLogz()
ut.invert_col(rt.gPad)
can.SaveAs("01fig.pdf")
def phot_hits_xy():
xbin = 1
xmin = -120
xmax = 120
can = ut.box_canvas()
hX = ut.prepare_TH2D("hX", xbin, xmin, xmax, xbin, xmin, xmax)
from BoxCalV2Hits import BoxCalV2Hits
hits = BoxCalV2Hits("phot", tree)
nevt = tree.GetEntries()
#nevt = 12
for ievt in xrange(nevt):
tree.GetEntry(ievt)
#if hits.GetN() <= 1: continue
#print hits.GetN()
for ihit in xrange(hits.GetN()):
#if hits.GetPdg(ihit) == 22: continue
#if hits.GetPdg(ihit) != 22: continue
#if hits.GetEn(ihit) > 0.1: continue
if hits.GetEn(ihit) < 0.1: continue
hX.Fill(hits.GetX(ihit), hits.GetY(ihit))
#print " ", hits.GetPdg(ihit), hits.GetX(ihit), hits.GetY(ihit), hits.GetZ(ihit), hits.GetEn(ihit)
print "Entries:", hX.GetEntries()
hX.SetMinimum(0.98)
hX.SetContour(300)
hX.Draw()
gPad.SetLogz()
ut.invert_col(rt.gPad)
can.SaveAs("01fig.pdf")
def hits_en_z_down():
#energy along the z position of the hit in down spectrometer detector
zpos = -36500 # mm
zbin = 0.3 # cm
zmax = 2 # cm
zmin = -36 # cm
ebin = 0.3
emin = 0
emax = 20
can = ut.box_canvas()
hEnZ = ut.prepare_TH2D("hEnZ", zbin, zmin, zmax, ebin, emin, emax)
nevt = tree.GetEntries()
#nevt = 10000
hits = BoxCalV2Hits("down", tree)
for ievt in xrange(nevt):
tree.GetEntry(ievt)
for ihit in xrange(hits.GetN()):
hEnZ.Fill( (hits.GetZ(ihit)-zpos)/10, hits.GetEn(ihit))
hEnZ.SetMinimum(0.98)
hEnZ.SetContour(300)
hEnZ.Draw()
gPad.SetGrid()
gPad.SetLogz()
ut.invert_col(rt.gPad)
can.SaveAs("01fig.pdf")
def hits_en():
#energy of the hits
ebin = 0.1
emin = 0
emax = 20
name = "lowQ2s1"
#name = "lowQ2s2"
can = ut.box_canvas()
hE = ut.prepare_TH1D("hE", ebin, emin, emax)
nevt = tree.GetEntries()
#nevt = 10000
hits = BoxCalV2Hits(name, tree)
for ievt in xrange(nevt):
tree.GetEntry(ievt)
nhit = hits.GetN()
if nhit <= 0: continue
en_evt = 0.
for ihit in xrange(nhit):
en_evt += hits.GetEn(ihit)
hE.Fill(en_evt)
hE.Draw()
gPad.SetGrid()
gPad.SetLogy()
ut.invert_col(rt.gPad)
can.SaveAs("01fig.pdf")
def recchar():
#reconstruction characteristics
#tagger configuration
#config = "recchar_s1.ini"
config = "recchar_s2.ini"
cf = read_con(config)
#tagger parametrization
xpos = cf("xpos")
zpos = cf("zpos")
rot_y = cf("rot_y")
zmin = cf("zmin")
can = ut.box_canvas(3 * 768)
can.Divide(3, 1)
hXY = ut.prepare_TH2D("hXY", cf("xybin"), -cf("xsiz") / 2.,
cf("xsiz") / 2., cf("xybin"), -cf("ysiz") / 2.,
cf("ysiz") / 2.)
hET = ut.prepare_TH2D("hET", cf("tbin"), cf("tmin"), cf("tmax"),
cf("ebin"), cf("emin"), cf("emax"))
hQ2 = ut.prepare_TH1D("hQ2", cf("qbin"), cf("qmin"), cf("qmax"))
#numerical minima and maxima
xlo = 1e9
xhi = -1e9
ylo = 1e9
yhi = -1e9
elo = 1e9
ehi = -1e9
tlo = 1e9
thi = -1e9
qlo = 1e9
qhi = -1e9
nevt = tree.GetEntries()
#nevt = 1200
hits = BoxCalV2Hits(cf.str("name"), tree)
gROOT.ProcessLine("struct Entry {Double_t v;};")
true_el_theta = rt.Entry()
true_el_E = rt.Entry()
true_Q2 = rt.Entry()
tree.SetBranchAddress("true_el_theta", AddressOf(true_el_theta, "v"))
tree.SetBranchAddress("true_el_E", AddressOf(true_el_E, "v"))
tree.SetBranchAddress("true_Q2", AddressOf(true_Q2, "v"))
for ievt in xrange(nevt):
tree.GetEntry(ievt)
nhsel = 0
for ihit in xrange(hits.GetN()):
hit = hits.GetHit(ihit)
hit.GlobalToLocal(xpos, 0, zpos, rot_y)
if hit.z < zmin: continue
nhsel += 1
#just one selected hit
if nhsel != 1: continue
#hit coordinats on front of the tagger
hXY.Fill(hit.x, hit.y)
if hit.x < xlo: xlo = hit.x
if hit.y < ylo: ylo = hit.y
if hit.x > xhi: xhi = hit.x
if hit.y > yhi: yhi = hit.y
#true electron energy and angle for the hit
en = true_el_E.v
lt = -TMath.Log10(TMath.Pi() - true_el_theta.v)
hET.Fill(lt, en)
if en < elo: elo = en
if en > ehi: ehi = en
if lt < tlo: tlo = lt
if lt > thi: thi = lt
#event true Q^2
lq = TMath.Log10(true_Q2.v)
hQ2.Fill(lq)
if lq < qlo: qlo = lq
if lq > qhi: qhi = lq
print "xlo:", xlo, "xhi:", xhi, "ylo:", ylo, "yhi:", yhi
print "elo:", elo, "ehi:", ehi, "tlo:", tlo, "thi:", thi
print "qlo:", qlo, "qhi:", qhi
ut.put_yx_tit(hXY, "#it{y} (mm)", "#it{x} (mm)")
hXY.SetMinimum(0.98)
hXY.SetContour(300)
ut.put_yx_tit(hET, "#it{E} (GeV)", "-log_{10}(#pi-#theta) (rad)")
hET.SetMinimum(0.98)
hET.SetContour(300)
ut.put_yx_tit(hQ2, "Counts", "log_{10}(#it{Q}^{2}) (GeV^{2})")
ut.line_h1(hQ2, rt.kBlue)
can.cd(1)
ut.set_margin_lbtr(gPad, 0.11, 0.08, 0.01, 0.12)
hXY.Draw()
gPad.SetGrid()
gPad.SetLogz()
can.cd(2)
ut.set_margin_lbtr(gPad, 0.11, 0.09, 0.02, 0.12)
hET.Draw()
gPad.SetGrid()
gPad.SetLogz()
can.cd(3)
ut.set_margin_lbtr(gPad, 0.11, 0.09, 0.02, 0.12)
hQ2.Draw()
gPad.SetGrid()
#ut.invert_col(rt.gPad)
ut.invert_col_can(can)
can.SaveAs("01fig.pdf")
def rate_xy_s1():
#event rate on the front of s1 tagger in xy
#size of bin (pad) in xy, mm
xybin = 1
#tagger location in x and z
xpos = 528.56 # mm
zpos = -24000 # mm
#front area, mm
xysiz = 430
#instantaneous luminosity
lumi = 1.45e6 # mb^-1 s^-1
#energy acceptance for tagger 1
acc = ["5.9", "12"] # GeV
#generator input with total cross section
inp_gen = TFile.Open(
"/home/jaroslav/sim/lgen/data/lgen_18x275_zeus_0p1GeV_beff2_1Mevt.root"
)
tree_gen = inp_gen.Get("ltree")
sigma = 276.346654276 # mb, zeus 0.1 GeV
#fiducial cross section based on energy acceptance
sigma_fid = sigma * float(
tree_gen.Draw("", "el_en>" + acc[0] + " && el_en<" +
acc[1])) / tree_gen.GetEntries()
print "Generator cross section:", sigma, "mb"
print "Fiducial cross section:", sigma_fid, "mb"
#units to show the rate
#rate_units = 1e-6 # MHz
rate_units = 1e-3 # kHz
#minimal z to select the front face
zmin = -10 # mm
#minimal energy for the hit
emin = 1 # GeV
can = ut.box_canvas()
hXY = ut.prepare_TH2D("hXY", xybin, -xysiz / 2., xysiz / 2., xybin,
-xysiz / 2., xysiz / 2.)
hE = ut.prepare_TH1D("hE", 0.1, 0, 20)
nevt = tree.GetEntries()
#nevt = 10000
#generated electron energy
gROOT.ProcessLine("struct Entry {Double_t val;};")
el_gen = rt.Entry()
tree.SetBranchAddress("el_gen", rt.AddressOf(el_gen, "val"))
#events with hit
nevt_hit = 0
#event loop
hits = BoxCalV2Hits("lowQ2s1", tree)
for ievt in xrange(nevt):
tree.GetEntry(ievt)
if hits.GetN() > 0: nevt_hit += 1
hit_sel = False
for ihit in xrange(hits.GetN()):
hit = hits.GetHit(ihit)
hit.GlobalToLocal(xpos, 0, zpos)
if hit.z < zmin: continue
if hit.en < emin: continue
hit_sel = True
hXY.Fill(hit.x, hit.y)
if hit_sel: hE.Fill(el_gen.val)
#total hits
nhit_all = hXY.GetEntries()
print "Events with hit:", nevt_hit
print "All selected hits:", nhit_all
print "Selected hits per event:", nhit_all / nevt
#total event rate
print "Total event rate:", 1e-6 * sigma_fid * lumi * nhit_all / nevt, "MHz"
#get the rate from counts in x and y
hXY.Scale(rate_units * sigma_fid * lumi / nevt)
ut.put_yx_tit(hXY, "#it{x} (mm)", "#it{y} (mm)")
ut.set_margin_lbtr(gPad, 0.11, 0.1, 0.05, 0.2)
#hXY.SetMinimum(0.98)
hXY.SetContour(300)
hXY.Draw()
#hE.Draw()
gPad.SetGrid()
#gPad.SetLogz()
#gPad.SetLogy()
ut.invert_col(rt.gPad)
can.SaveAs("01fig.pdf")