Hi,
we are meeting on Thursday 11/02/2006 at 09:00 at Bates.
To call in, dial Bates conference call +1-866-867-8301, passcode 4073393.
Find below the minutes of the last meeting.
Agenda:
-d(e,e'n) status update (EG,VZ)
-d(e,e'p) kinematic corrections (AD)
-p(e,e')delta status analysis/results (OF)
-aob
Regards,
Michael
Minutes from 10/19/2006:
d(e,e'n):
-See ppt
-Discrepancies beween VZ and EG's asymmetries observed, to be
straightened out
-Also MC asymmetries differ, though based on same MC files -> debug
macros
-As the following step, compare results between 2004 and 2005
-Study e,e'n vector and tensor asymmetries, compare wit hArenhoevel, role
of FSI at low Q2
-Neutron time correction bar-by-bar: constant shift for vertical bars,
angle-dependent for horizontal Ohio bars
-Matching of missing momentum components and cms angle
-Revision of cuts
-Neutron rate/C: Compare with (e,e'p)/C (->Adam?), also 2004 and 2005.
Did neutron efficiency change (drop?) in 2005?
-MK will focus on T20 next. Expect review at collaboration meeting on
11/17
-Finalize GMn analysis thereafter
Two-photon effects:
-Richard and Michael putting together a document describing the use of
positrons and electrons in a storage ring to measure the cross section
ratio for e+p/e-p.
-Measurement at low epsilon (0.2-0.4): expect 5-10% effect on the ratio
due to two-photon exchange.
-Typical beam energies ~1.8-2.5 GeV, in combination with Blast detector
-Optimized luminosity needed (unpolarized) 10^32-10^33
-To be proposed for DESY/DORIS
Status of the proton PRL (as of Oct. 19, 2006):
===============================================
CURRENT STATUS OF MANUSCRIPT: With referee(s)
CORRESPONDENCE:
SENT RECEIVED DESCRIPTION
19Oct06 Review request to referee; response not yet received
09Oct06 16Oct06 Reminder to referee; response received
09Oct06 09Oct06 Reminder to referee; response received
22Sep06 09Oct06 Review request to referee; report received
22Sep06 Review request to referee; response not yet received
15Sep06 Acknowledgment sent to author via email
15Sep06 Corr. to author (paper long; short version NOT required now)
08Sep06 Correspondence (miscellaneous) sent to author via email
+-------------------------------------+--------------------------+
| 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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| Work: +1-617-253-9207 | Home: +1-617-629-3147 |
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