Ruprecht Karls Universität Heidelberg

Plots and tables

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From the 1992 S+Au run (PS-file, table) :

       mass        cross-section  err (stat)   -err (sys)     +err (sys)
     .5000000E-01  .9663000E-05  .1638000E-05  .2678000E-05  .2678000E-05
     .8333000E-01  .7501000E-05  .2592000E-05  .2078000E-05  .2078000E-05
     .1500000      .1874000E-05  .1249000E-05  .5200001E-06  .5200001E-06
     .2500000      .1970000E-05  .7228000E-06  .6722000E-06  .6722000E-06
     .3500000      .2224000E-05  .6295000E-06  .5935000E-06  .6455001E-06
     .4500000      .2176000E-05  .7561000E-06  .5809000E-06  .6319000E-06
     .5500000      .1392000E-05  .7097000E-06  .3713001E-06  .4043001E-06
     .6500000      .8416000E-06  .5888000E-06  .2246000E-06  .2444000E-06
     .7500000      .1360000E-05  .4576000E-06  .3629000E-06  .3949000E-06
     .8500000      .9153000E-06  .3858000E-06  .2443000E-06  .2659000E-06
     .9500000      .3411000E-06  .3225000E-06  .9100000E-07  .9909999E-07
     1.100000      .1319000E-06  .1907000E-06  .3519999E-07  .3829999E-07
     1.300000      .7898000E-07  .1342000E-06  .2110001E-07  .2300001E-07
      

References:

G. Agakichiev et al., Phys. Rev. Lett. 75 (1995) 1272-1275
T. Ullrich, CERES collaboration, Nucl. Phys. A610 (1996) 317c-330c

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From the 1993 p+Be run :

Inclusive spectrum (cocktail normalized to the expected neutral meson yield) PS-file, table

       p-Be (absolute normalisation)
       mass         cross-section    error       syst.error
      .2500000E-01  .1015386E-03  .2217739E-06  .2000000E-04 
      .7500000E-01  .4139878E-04  .1847500E-06  .7380000E-05 
      .1250000      .4097016E-05  .1029427E-06  .7180000E-06 
      .1750000      .1645753E-05  .8114220E-07  .2950000E-06 
      .2250000      .1030905E-05  .6673908E-07  .1840000E-06 
      .2750000      .6879351E-06  .5506289E-07  .1210000E-06 
      .3250000      .4896614E-06  .4466516E-07  .8620000E-07 
      .3750000      .3417136E-06  .3669874E-07  .6140000E-07 
      .4250000      .2512600E-06  .2909443E-07  .4480000E-07 
      .4750000      .1411490E-06  .2478606E-07  .2520000E-07 
      .5250000      .1256300E-06  .1969435E-07  .2210000E-07 
      .5750000      .7611700E-07  .1664228E-07  .1350000E-07 
      .6250000      .6503200E-07  .1489085E-07  .1150000E-07 
      .6750000      .8129000E-07  .1346458E-07  .1450000E-07 
      .7250000      .1086330E-06  .1238564E-07  .1940000E-07 
      .7750000      .9459200E-07  .1154318E-07  .1660000E-07 
      .8250000      .7907300E-07  .1010213E-07  .1420000E-07 
      .8750000      .5025200E-07  .8291580E-08  .8860000E-08 
      .9250000      .3842800E-07  .7088488E-08  .6800000E-08 
      .9750000      .2143100E-07  .6226813E-08  .3830000E-08 
      1.025000      .2512600E-07  .6093794E-08  .4480000E-08 
      1.075000      .1773600E-07  .4901787E-08  .3190000E-08 
      1.125000      .8129000E-08  .3544244E-08  .1450000E-08 
      1.175000      .5912000E-08  .2956000E-08  .1060000E-08 
      1.225000      .2217000E-08  .3046897E-08  .3920000E-09 
      1.275000      .8868000E-08  .3465910E-08  .1570000E-08 
      1.325000      .1478000E-08  .2559896E-08  .2650000E-09 
      1.375000      .7389999E-13  .1478000E-08  .0000000E+00 
      1.425000      .3695000E-08  .1652404E-08  .6620000E-09 
      1.475000      .7390000E-09  .1279948E-08  .1310000E-09 
      

Exclusive spectrum (cocktail normalized to the reconstructed pi0- and eta-Dalitz-decays) PS-file

References:

G. Agakichiev et al., "Systematic study of low-mass electron pair production in p-Be and p-Au collissions at 450 GeV/c" , submitted to Z. Phys. C

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From our 1993 p+Au run (cocktail normalized to the expected neutral meson yield: PS-file, table) :

       p-Au (absolute normalisation)
       mass         cross-section    error       -err (sys)    +err (sys)
      .2500000E-01  .1037865E-03  .7294688E-06  .2040000E-04  .2947800E-04
      .7500000E-01  .4189717E-04  .5102992E-06  .8740000E-05  .1262930E-04
      .1250000      .4863674E-05  .3182688E-06  .9939999E-06  .1436330E-05
      .1750000      .1680163E-05  .2656352E-06  .3440000E-06  .4970800E-06
      .2250000      .1228666E-05  .2158800E-06  .2180000E-06  .3150100E-06
      .2750000      .9498720E-06  .1801056E-06  .1680000E-06  .2427600E-06
      .3250000      .4095552E-06  .1422752E-06  .7280000E-07  .1051960E-06
      .3750000      .3696688E-06  .1180144E-06  .6550000E-07  .9464750E-07
      .4250000      .2656352E-06  .9580960E-07  .4730000E-07  .6834850E-07
      .4750000      .2014880E-06  .8100641E-07  .3580000E-07  .5173100E-07
      .5250000      .1603680E-06  .6867040E-07  .2830000E-07  .4089350E-07
      .5750000      .1028000E-06  .5756800E-07  .1820000E-07  .2629900E-07
      .6250000      .6579200E-07  .5098880E-07  .1170000E-07  .1690650E-07
      .6750000      .7812800E-07  .4029760E-07  .1380000E-07  .1994100E-07
      .7250000      .1521440E-06  .3824160E-07  .2690000E-07  .3887050E-07
      .7750000      .1110240E-06  .3371840E-07  .1960000E-07  .2832200E-07
      .8250000      .8635200E-07  .3248480E-07  .1530000E-07  .2210850E-07
      .8750000      .6579200E-07  .2590560E-07  .1170000E-07  .1690650E-07
      .9250000      .1644800E-07  .1932640E-07  .2910000E-08  .4204950E-08
      .9750000      .5345600E-07  .2220480E-07  .1320000E-07  .1907400E-07
      1.025000      .3700800E-07  .1809280E-07  .6550000E-08  .9464751E-08
      1.075000      .8224000E-08  .1439200E-07  .1460000E-08  .2109700E-08
      1.125000      .2056000E-07  .1233600E-07  .3640000E-08  .5259800E-08
      1.175000      .2056000E-07  .1110240E-07  .3640000E-08  .5259800E-08
      1.225000      .8224000E-08  .1151360E-07  .1460000E-08  .2109700E-08
      1.275000      .1644800E-07  .8224000E-08  .2910000E-08  .4204950E-08
      1.325000     -.4112000E-08  .6990400E-08  .0000000E+00  .0000000E+00
      1.375000      .8224000E-08  .1028000E-07  .1460000E-08  .2109700E-08
      1.425000     -.8224000E-08  .5756800E-08  .0000000E+00  .0000000E+00
      1.475000     -.4112000E-08  .4112000E-08  .0000000E+00  .0000000E+00
      

References:

G. Agakichiev et al., "Systematic study of low-mass electron pair production in p-Be and p-Au collissions at 450 GeV/c" , submitted to Z. Phys. C

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