Some things

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Below is shown histograms before changing angles by sectors for pions and electrons.
E sector vs e phi angle without cuts before change file dst27095.gif Pion sector vs pion phi angle without cuts before changing phi angles by sector file dst27095.gif

ELECTRON SECTOR vs ELECTRON [math]\phi[/math] ANGLE
dst27095_05.B00, B>0, target material NH3, Target Polarization (78.19) and Beam energy 5.7 GeV dst26988_05.B00, B<0, target material NH3, Target Polarization (-67.82) and Beam energy 5.7 GeV dst27109_05.B00, B>0, target material NH3, Target Polarization (-69.81) and Beam energy 5.7 GeV
E sector vs e phi angle positive torus after change file dst27095 without cuts.gif E sector vs e phi angle negative torus file dst27095 without cuts.gif

E sector vs e phi angle positive torus file dst27109 without cuts.gif


[math]\phi[/math] ANGLE DISTRIBUTION FOR ELECTRONS AND PIONS, FILE dst27095_05
ELECTRONS PIONS(prt_id=4)
Electron phi angle in lab frame file dst27095 without cuts after change.gif Pion phi angle without cuts lab frame file dst27095 after change.gif


SECTOR_VS_[math]\phi[/math] FOR ELECTRONS AND PIONS, FILE dst27095_05
ELECTRONS PIONS(prt_id=4)
E sector vs e phi angle positive torus after change file dst27095 without cuts.gif Pi sector vs pi phi angle without cuts lab frame after change file dst27095.gif


E sector vs phi angle difference of electron and pion without cuts in lab frame file dst27095 05.gif

e_theta_vs_phi_angle_difference with cuts (e_p<3, [math]EC_{tot}\gt 0.2p[/math], [math]EC_{inner}\gt 0.08p[/math]), no cuts on sc_paddle and nphe
SECTOR 1 SECTOR 2 SECTOR 3
E theta vs phi angle difference no cuts on sc paddle and on nphe sector 1 file dst27095.gif E theta vs phi angle difference no cuts on sc paddle and on nphe sector 2 file dst27095.gif E theta vs phi angle difference no cuts on sc paddle and on nphe sector 3 file dst27095.gif
SECTOR 4 SECTOR 5 SECTOR 6
E theta vs phi angle difference no cuts on sc paddle and on nphe sector 4 file dst27095.gif E theta vs phi angle difference no cuts on sc paddle and on nphe sector 5 file dst27095.gif E theta vs phi angle difference no cuts on sc paddle and on nphe sector 6 file dst27095.gif



For Electrons theta_vs_phi with cuts (e_p<3, [math]EC_{tot}\gt 0.2p[/math], [math]EC_{inner}\gt 0.08p[/math]), no cuts on sc_paddle and nphe
SECTOR 1 SECTOR 2 SECTOR 3
E theta vs phi angle no cuts on sc paddle and on nphe sector 1 file dst27095.gif E theta vs phi angle no cuts on sc paddle and on nphe sector 2 file dst27095.gif E theta vs phi angle no cuts on sc paddle and on nphe sector 3 file dst27095.gif
SECTOR 4 SECTOR 5 SECTOR 6
E theta vs phi angle no cuts on sc paddle and on nphe sector 4 file dst27095.gif E theta vs phi angle no cuts on sc paddle and on nphe sector 5 file dst27095.gif E theta vs phi angle no cuts on sc paddle and on nphe sector 6 file dst27095.gif



at 77 K it is 0.853 g/cm^3 and packing fraction 0.58 \pm 0.01 CERN-EP 99-31


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