Hi,
below are the minutes of the analysis meeting from Wednesday 2006/05/31:
Minutes:
-Final results for spin angle (MK)
+Message has been posted to blast_anaware on 5/30/06 with summary
+Final maps are based on average profile with global alignment from
ed tensor elastic
+Have been obtained from latest deuterium recrunches v3_4_18 (2004
deuterium) and v3_4_19 (2005 deuterium), the latter with static
T0's.
+Final maps for 32 and 47 degrees have been added to kine.init in
userGen/DGen
+32deg: Jan2005-map + 0.1deg, Jun2005-map + 0.7deg
+47deg: Jan2005-map + 0.7deg, Jun2005-map + 1.2deg
+Accuracy is 0.5 degrees.
-Final? results on ep elastic (CC)
+new plots on GEp/GMp and hPz after accounting for final spin angle
map, see meeting directory, compare to report in meeting_060426
+FF extraction is "smoother" when restricting phi to +-12 degrees
+extraction of GE/GM mostly independent of z-cut (+-20 vs. +-15cm),
however hPz shows some cut dependence.
+to do: generate "polarization profile" hPz versus z
+paper will be updated by Chris and reviewed by MK before handed to
Richard.
-Updates on GEn and quasielastic tensor polarized d(e,e'n) (EG)
+Extraction of GEn from 2004 data after recrunch, old vs. new
+Spin angle map / MC need to be updated. Current MC uses Jun2005 map,
i.e. values will become smaller by ~8%
+Kinematic correction for neutron energy-momentum four-vector to be
updated
+Experimental e,e'n tensor asymmetries consistent with VZ's
extraction from fall 2005, nonzero even for small pmiss
+A_d^T at Pmiss->0 should be zero, unless there is FSI
+MC results inconsistent. Find out why ... VZ's version shows zero
A_d^T at small pmiss (in disagreement with the data) while EG's MC
curves agree with the data
-Misc.
+Extraction of T20/T21 ratio: Independent of Pzz, but statistical
error larger
+Discrepancy of theory with ratio (Schiavilla) mostly due to mismatch
in GM, goes away when using world data for GM
+Waiting for update of e,e'n/e,e'p MC
+Extraction of hPz from d(e,e'p):
1) from comparing A_ed^V with MC (AD),
2) from analysis of form factor ratio Gep/GMp from e,e'p in
quasifree limit (RF)
+d(e,e'p) analysis should apply EG's kinematic corrections from ep
elastic and assess quality/applicability of it
+Hydrogen v3_4_20 has been recrunched (/net/data/5), accounting for
bugfix in pid of piplus vs. proton, and lower momentum cutoff
(100MeV/c)
+Other latest recrunches (RECRUNCHDIR):
Deuterium 2005 (v3_4_19) with static T0's and updated Geom/Magfield
Deuterium 2004 (v3_4_18) with updated Geom/Magfield
Best 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. | |
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| Email: kohlm@mit.edu | K.Michael.Kohl@gmx.de |
| Work: +1-617-253-9207 | Home: +1-617-629-3147 |
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