April 07 2011 Meeting Summary

Back to CSR Weekly Meeting on 2011

1. xinhu: [NaI middle and bottom box correction]
2. hyao: [RHRS Advanced R-Cut and LHRS New Acceptance with New THaShower]

xinhu:

1. Modify the NaI Box2 and Box3 cut. Just add all bad blocks but modify the THaShower.C to estimate the energy loss due to

bad block with the help of adjacent good blocks. Much better than before. Still some events can not be optimized.

hyao:

1. Make rcut to exclude the hole in theta_tg vs phi_tg. Shape of theta phi tg changes a lot after rcut.
2. Left arm fp/target Comparison is much better than before. Left arm theta fp/tg simulation fluctuates.

To do list:

xinhu:

1. Study efficiency of bad block if these correction is good or not ( events are electron or not ). and what's the uncertainty. Check the efficiency with and without bad blocks.

---> Recalibrate run 3450 and add the NaI calibration [config = 3450] into database. Please update the SVN. 2011-04-13

hyao:

1. Make loose rcut to check the shape of theta and phi.---->Yes. The shape is back after loose rcut. --hyao 11:24, 7 April 2011 (UTC)
2. Check SAMC to check the fluctuation of theta for left arm.---->It's been fixed but not sure what caused it. I guess I didn't add electron cut for data.--hyao 16:34, 10 April 2011 (UTC)
3. Update R-Cut in svn.---->The new rcut is not good as I thought. So just keep old one.--hyao 17:32, 9 April 2011 (UTC)
4. Continue "To do list" in March 31 2011 Meeting Summary