[BLAST_SHIFTS] polarization and density

From: Michael Kohl (kohlm@mit.edu)
Date: Sun Mar 13 2005 - 12:30:56 EST


Hi,

so far it looks like the polarization did not change a lot,

 root -l -q -b show_deep_asym_all_47.C 14187-14194 14196-14200 gives

 A_ed_V Point Asymmetries vs Q2 Sector L: 0.339204 +- 0.0990747
 A_ed_V Point Asymmetries vs Q2 Sector R: 0.333301 +- 0.0684654

However, the target density seems to be lower by a factor 2-3:
  Rate of events passing d(e,e'p) cuts : 10.9555 events/C
  Rate of events passing d(e,e'p)n cuts : 5.69845 events/C

Compared to 100mA runs with previous 15mm cell:
 root -l -q -b show_deep_asym_all_47.C 13565-13566 13568-13575 13577-13592 \
   13594-13599 13605-13606 gives
  Rate of events passing d(e,e'p) cuts : 28.7486 events/C
  Rate of events passing d(e,e'p)n cuts : 16.1978 events/C

Regards,

   Michael

-- 

+-------------------------------------+--------------------------+ | Office: | Home: | |-------------------------------------|--------------------------| | Dr. Michael Kohl | Michael Kohl | | Laboratory for Nuclear Science | 5 Ibbetson Street | | MIT-Bates Linear Accelerator Center | Somerville, MA 02143 | | Middleton, MA 01949 | U.S.A. | | U.S.A. | | | - - - - - - - - - - - - | - - - - - - - - -| | Email: kohlm@mit.edu | K.Michael.Kohl@gmx.de | | Work: +1-617-253-9207 | Home: +1-617-629-3147 | | Fax: +1-617-253-9599 | Mobile: +1-978-580-4190 | | http://blast.lns.mit.edu | | +-------------------------------------+--------------------------+



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