Continued CC analysis after shielding... As mentioned in the earlier email,
notice the fluctuation of L1, L2 and R1 and R2. These are the EXACT SAME CUTS.
By Monday all of these should be nailed down to within 1% or 2%... But
again...
Left Sector shows clear improvement!!!!! Hopefully shielding will be put into
the right side and push everything above 90% on the right!
***************************
Efficiencies Left Sector
------------------------
L0: 0.8669 +/- 0.0132 Total Hits: 5756
L1: 0.8179 +/- 0.0261 Total Hits: 1472
L2: 0.8425 +/- 0.0887 Total Hits: 127
***************************
Efficiencies Right Sector
------------------------
R0: 0.9298 +/- 0.0134 Total Hits: 5581
R1: 0.8043 +/- 0.0284 Total Hits: 1242
R2: 0.8268 +/- 0.0887 Total Hits: 127
*****************************
Total Sector CC Efficiencies
----------------------------
Left Side: 0.8414 +/- 0.0082 Total Hits: 15050
Right Side: 0.8836 +/- 0.0086 Total Hits: 13579
*************************
Quoting "Eugene J. Geis" <egeis@imap2.asu.edu>:
> Dear fellow Blasters...
>
> Below are preliminary Efficiency results of the shielding in the Left
> side. I've
> also included the right sector efficiencies as well. More statistics
> are
> certainly needed as indicated by low # of events in back angle CC's and
> from
> prior experience with the efficiencies of L1, L2, R1, and R2
> fluctuating
> considerably from run to run.
>
> But OVERALL... Left side looks astoundingly better. As mentioned by a
> fellow
> devotee there is also a considerable increase in the efficiency of the
> right
> side that is quite unexplainable. Results now follow:
>
> ====================================
> --- CC Efficiency ---
> ====================================
>
> !!!!!!!!!!!!!!!! BEFORE Shielding !!!!!!!!!!!!!!!!!!
>
> --------------------------------------------------
> Efficiencies BEFORE Shielding put into Left Sector
> --------------------------------------------------
>
> RUNS Used: 4871-4878 4880-4882 4883 4885-4892
> ---------- All Deuterium Runs
>
> -------------------------------------
> CUTS on Quasi-elastic e'p events
> -------------------------------------
>
> -Momentum of Electron abs(pwl-0.725)<0.13
> -Vertex abs(zwl)<20.0&&abs(zwr)<20.0&&abs(zwl-zwr)<5.0
> -Charge qwl==-1&&qwr==1
> -No Cerenkov on Opposite Sector acr<0
> -Missing mass of Neutron abs("+mm_L+"-0.9)<0.35
> -Loose Phi Cut for noise abs(fwl-fwr+179.7)<30.0
>
>
> =====================================================
> -------------------- RESULTS --------------------
> =====================================================
>
> *************************
> Efficiencies Left Sector
> ------------------------
> L0: 0.7562 +/- 0.0190 Total Hits: 2777
> L1: 0.3028 +/- 0.0307 Total Hits: 1060
> L2: 0.5214 +/- 0.0845 Total Hits: 140
>
> **************************
> Efficiencies Right Sector
> -------------------------
> R0: 0.8604 +/- 0.0186 Total Hits: 2901
> R1: 0.5626 +/- 0.0276 Total Hits: 1310
> R2: 0.3729 +/- 0.0574 Total Hits: 303
>
>
> *************************************
> Total Sector CC Efficiencies
> ----------------------------
>
>
> Left Side: 0.6015 +/- 0.0113 Total Hits: 7851
>
> Right Side: 0.7150 +/- 0.0106 Total Hits: 8874
> *****************************************************
> =====================================================
> *****************************************************
> =====================================================
> *****************************************************
>
> !!!!!!!!!!!!!!!! AFTER Shielding !!!!!!!!!!!!!!!!!
>
> --------------------------------------------------
> Efficiencies AFTER Shielding put into Left Sector
> --------------------------------------------------
>
> RUNS Used: 5028-5030 5038-5044 5046-5050
> ---------- All Deuterium Runs
>
> -----------------------------------------------------
> CUTS on Quasi-elastic e'p events -SAME AS BEFORE...
> -----------------------------------------------------
>
> -Momentum of Electron abs(pwl-0.725)<0.13
> -Vertex abs(zwl)<20.0&&abs(zwr)<20.0&&abs(zwl-zwr)<5.0
> -Charge qwl==-1&&qwr==1
> -No Cerenkov on Opposite Sector acr<0
> -Missing mass of Neutron abs("+mm_L+"-0.9)<0.35
> -Loose Phi Cut for noise abs(fwl-fwr+179.7)<30.0
>
>
> =====================================================
> -------------------- RESULTS --------------------
> =====================================================
>
> *************************
> Efficiencies Left Sector
> ------------------------
> L0: 0.8400 +/- 0.0216 Total Hits: 2137
> L1: 0.7791 +/- 0.0546 Total Hits: 335
> L2: 0.8140 +/- 0.1525 Total Hits: 43
>
> **************************
> Efficiencies Right Sector
> -------------------------
> R0: 0.9326 +/- 0.0212 Total Hits: 2227
> R1: 0.9368 +/- 0.0629 Total Hits: 253
> R2: 0.7556 +/- 0.1491 Total Hits: 45
>
>
> ******************************
> Total Sector CC Efficiencies
> ------------------------------
>
> Left Side: 0.8253 +/- 0.0139 Total Hits: 5185
>
> Right Side: 0.9106 +/- 0.0141 Total Hits: 5047
> *****************************************************
>
>
>
>
> --------------------------------------------------------------------------
> Eugene Geis
> PhD Student, Physics Department, ASU
> Research Affiliate, MIT-Bates Laboratory of Nuclear Science
> eugene.geis@asu.edu
> --------------------------------------------------------------------------
> -------------------------------water is
> good------------------------------
> --------------------------------------------------------------------------
> ** Check Out the Phatty Acidz @ http://www.phattyacidz.com **
--------------------------------------------------------------------------
Eugene Geis
PhD Student, Physics Department, ASU
Research Affiliate, MIT-Bates Laboratory of Nuclear Science
eugene.geis@asu.edu
--------------------------------------------------------------------------
-------------------------------water is good------------------------------
--------------------------------------------------------------------------
** Check Out the Phatty Acidz @ http://www.phattyacidz.com **
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