Jan 2000 Official plots of 1kt momentum and profile (temporary)


Last updated 2000-Jan-23 by Y.Itow

Beam profile at 1kt


  • fiducial: sqrt( x**2 + z**2 )< 3.0 m && abs(y) < 3.0 m (vertical cylinder)

  • total photoelectron: 2000 < qismsk < 160000

  • Use single interaction: npeakspill==1&&ifgodspill==1

  • Target mass correction was done. No efficiency correction due to photoelectron cut

  • normalization done by contents.

  • Crosses shows data, lines shows results of gaussian fit of data. MC is not ready.

  • Profile for 1999-Jun data
  • /ps/ (itow)
  • Profile for 1999-Nov data
  • /ps/ (itow)
  • Center of profile in 1kt coordinate (by gaussian fit)
  • Expected beam center is (H=0cm, V=-18cm)
    Jun
    horizontal : +20 +- 6cm
    vertical : -31 +- 6cm
    Nov
    horizontal : +9 +- 5cm
    vertical : -7 +- 4cm


    Momentum and so-on at 1kt


  • fiducial: sqrt( x**2 + y**2 )< 2.0 m && abs(z) < 2.0 m (cylinder along beam)

  • total photoelectron: 2000 < qismsk < 160000

  • Use single interaction: npeakspill==1&&ifgodspill==1

  • No efficiency correction due to various cut

  • Fully contained (FC) cut is pomax < 200

    Crosses shows data, MC is with Neut ver4.0 for jun and nov (blanc box) and ver2.4 for jun (hatched box).
    Normalizaion of MC was done by number of FC events in FV.

  • momentum for 1999-Jun data with JunMC (Neut V4.0)
  • /ps/ (itow)
  • momentum for 1999-Nov data with Nov MC (Neut V4.0)
  • /ps/ (itow)


    Event summary at 1kt


  • fiducial: sqrt( x**2 + z**2 )< 2.0 m && abs(y) < 2.0 m (vertical cylinder)

  • total photoelectron: 1000 < qismsk <

  • Use single interaction: npeakspill==1&&ifgodspill==1

  • Event summary from April to Nov. 1999
  • /ps/ (miuram)

    parent directory/