Answers to Review Panel Questions

Rajendran Raja

6-Nov-2004

Preamble:-

The Full MIPP program calls for 1.3E6 spill seconds of beam. We assume a
DAQ rate

Of 60Hz which yields 78million events. We assume a spill cycle time of
2.8 secs during

which a double booster batch gets delivered to antiprotons
(slip-stacking) and a 0.645 sec flat top

gets delivered to MIPP. To set a scale, we will be assured of 1.3E6
spill seconds if all the spills

during a 2.2 month period were delivered to MIPP. The current run plan
is to run till the

next shutdown (December 04-July 05) .

There are four broad clientele for MIPP data. They are distinguished by
beam species and targets.

They are Liquid Hydrogen data for QCD studies, nuclear target data (this
falls into two sub-categories proton Nucleus and survey),

NUMI measurements (this uses both thin carbon targets and the full NUMI
target) and Atmospheric neutrino measurements (on Liquid Nitrogen).

1\) What is your plan for commissioning the MIPP spectrometer and
determining

when it is ready to take physics-quality data? How much beam time will
be

required for commissioning?

We have just finished an engineering run during which most of the
detector was in working condition.

When we turn back on in December 04, we hope to do commissioning in
December 04 and to have a fully working detector beginning January 2005.
During the commissioning phase and beyond, we will have all the detector
experts in residence at Fermilab to ensure a smooth turn on. We have
allocated a 3 million event beam usage for commissioning .See tables
below for further details.

2\) Please present the status of the TPC hardware and software; what is
the

estimated tracking efficiency? If the efficiency is less than optimal,
how

will this affect your physics goals?

The TPC worked well towards the end of the last engineering run. It had
a set of anode wires that were tripping during that phase. This has
since been fixed. We hope to come up with a TPC with all its channels
(Save a few hot pads) working. Each track traversing the whole TPC gets
digitized 128 times. These are 180 space points. The TPC has been
previously used in experiments at BNL. The tracking efficiency has been
measured to be greater than 98% (Y.Torun , Ph.D thesis). We do not
expect this to be a problem. The 3-D nature of the digitizations is an
enormous advantage while pattern recognizing, since TPC tracks can be
swum to chambers in 3D and individual chamber planes can be associated
with tracks with no ambiguity.

3\) Please comment on any existing detector problems that might extend
the

amount of time required for startup.

We had broken wires in two large PWC planes (chambers 5,6) that straddle
the RICH detector and help pattern recognize the tracks that enter the
RICH. We have fixed those chambers during this shutdown. We hope to come
up with fully working chambers.

We need to understand the drift chamber efficiencies a little better and
we hope to do this during the commissioning.

The multi-cell CKOV detector did not run during the engineering run with
its gas of choice (C4F10), since the gas company delivered the wrong
gas!. The CKOV was however full y read out using a CO2 gas during the
engineering run. We will use the commissioning phase of the upcoming run
to study the CKOV better.

We need to understand our interaction trigger better and time in the
veto counter that vetoes against halo beam particles better.

All other systems, (beam chambers, beam cerenkovs, time of flight wall,
RICH, and the EMCAL and Hadron calorimeters) peformed well during the
engineering run.

4\) For each of the three beam time scenarios listed in the charge for
this

review, please present your run plan and comment on which goals in your

proposal can be achieved.

We have divided the data taking into three scenarios as requested. We
have had to prioritize our data accordingly, running the high priority
items(Priority 1) for the 2E5 spill sec scenario, (Priority 2) for the
5E5 spill sec scenario and (Priority 3) for the 1.3E6 spill sec
scenario. We give a summary of our run plan agreed upon within the
collaboration here. The exact beam momenta are still being fine tuned,
but the tables below broadly give our run plan.

  ------------------------- ---------- -------- ---------- ----------------
  **MIPP Run Plan:                                         
  Priority**                                               

                                                           

  **Priority**              **1**      **2**    **3**      **Total**

  **M Spill Seconds**       0.2        0.3      0.8        1.3

  **Million Events**        12.0       18.0     48.0       78.0

  **Fraction**              0.154      0.231    0.615      1

  **Ratio**                 1.0        1.5      4.0        6.5

                                                           

                                                           

  **Run Priority**                                         

                                                           

  Sum of Mevents            Priority                        

  Program                   1          2        3          Grand Total

  Atm. Neutrinos                       1.50     1.50       3.00

  Engineering               3.00                           3.00

  MINOS                     1.52       2.31     6.18       10.01

  pA                        2.00       4.00     11.20      17.20

  Scaling                   2.40       5.50     16.50      24.40

  Survey                    3.00       5.00     12.79      20.79

  Grand Total               11.92      18.31    48.17      78.40

  1E5 Spill-Seconds         1.99       3.05     8.03       

                                                           
  ------------------------- ---------- -------- ---------- ----------------

These break down to the individual programs as follows.

  --------------------------- ------------- ------- ----------- -----------
  **MIPP Run Plan: Programs**                                   

                                                                

  **Program**                 **MINOS**                         

                                                                

  Sum of Mevents                                                 

  Priority                    Target        E       Note        Total

  1                           C             13.3    p only      0.38

                                            40      p only      0.38

                                            120     p only      0.38

                              NuMI          120     p only      0.38

  1 Total                                                       1.52

  2                           C             20      p only      0.29

                                            60      p only      0.29

                                            120     p only      0.58

                              NuMI          120     p only      1.15

  2 Total                                                       2.31

  3                           C             13.3    p only      0.62

                                            20      p only      0.62

                                            40      p only      0.62

                                            60      p only      0.62

                                            120     p only      0.62

                              NuMI          120     p only      3.08

  3 Total                                                       6.18

  Grand Total                                                   10.01
  --------------------------- ------------- ------- ----------- -----------

  ------------------------- ---------------- --------- -------- ----------
                                                                

                                                                

  **Program**               **Scaling**                         

                                                                

  Sum of Mevents                                                 

  Priority                  Target           E         Note     Total

  1                         H                15                 0.80

                                             50                 0.80

                                             75                 0.80

  1 Total                                                       2.40

  2                         H                5                  1.40

                                             15                 0.40

                                             30                 1.40

                                             50                 0.40

                                             75                 0.40

                            D                5                  0.30

                                             15                 0.30

                                             30                 0.30

                                             50                 0.30

                                             75                 0.30

  2 Total                                                       5.50

  3                         H                5                  3.00

                                             15                 3.00

                                             30                 3.00

                                             50                 3.00

                                             75                 3.00

                            D                5                  0.30

                                             15                 0.30

                                             30                 0.30

                                             50                 0.30

                                             75                 0.30

  3 Total                                                       16.50

  Grand Total                                                   24.40
  ------------------------- ---------------- --------- -------- ----------

  ---------------------- --------- ------ ----------------------- ---------
                                                                  

                                                                  

  **Program**            **pA**                                   

                                                                  

  Sum of Mevents                                                   

  Priority               Target    E      Note                    Total

  1                      Be        120    p only                  1.00

                         Pb        120    p only                  1.00

  1 Total                                                         2.00

  2                      Be        120    p only                  2.00

                         Pb        120    p only                  2.00

  2 Total                                                         4.00

  3                      Be        120    p only                  3.00

                                          p only, 2x target       0.60

                         Cu        120    p only                  4.00

                         Pb        120    p only                  3.00

                                          p only, 2x target       0.60

  3 Total                                                         11.20

  Grand Total                                                     17.20
  ---------------------- --------- ------ ----------------------- ---------

  ----------------------- ------------------ ----- ------------- ---------
                                                                 

                                                                 

  **Program**             **Survey**                             

                                                                 

  Sum of Mevents                                                  

  Priority                Target             E     Note          Total

  1                       Be                 50                  0.50

                          Pb                 30                  0.50

                                             50                  1.00

                          U                  50                  1.00

  1 Total                                                        3.00

  2                       Be                 30                  1.00

                                             50                  0.50

                          Pb                 30                  0.50

                                             50                  1.00

                                             75                  1.00

                          U                  50                  1.00

  2 Total                                                        5.00

  3                       Be                 5                   1.00

                                             13                  1.00

                                             50                  0.81

                                             75                  1.00

                          C                  5                   1.00

                                             20    pi,K only     0.66

                                             40    pi,K only     0.66

                                             60    pi,K only     0.66

                          Cu                 30                  1.00

                                             50                  2.00

                                             75                  1.00

                          Pb                 5                   1.00

                                             13                  1.00

  3 Total                                                        12.79

  Grand Total                                                    20.79

                                                                 
  ----------------------- ------------------ ----- ------------- ---------

  ---------------------- ------------------------ -------- ------- -------
                                                                   

                                                                   

  **Program**            **Atm. Neutrinos**                        

                                                                   

  Sum of Mevents                                                    

  Priority               Target                   E        Note    Total

  2                      N                        5                0.50

                                                  13.3             0.50

                                                  30               0.50

  2 Total                                                          1.50

  3                      N                        5                0.50

                                                  13.3             0.50

                                                  30               0.50

  3 Total                                                          1.50

  Grand Total                                                      3.00
  ---------------------- ------------------------ -------- ------- -------

5\) Finally, please comment on MIPP staffing both for a quick startup
and

intense 11-week run, and for an extended (\~40 week) run.

With our existing manpower, the period 22-Nov-2004---31-March-2005
requires 17 shifts per person.

This works out to slightly over four shifts per person per month. The
same ratios will continue to hold for the full run.

However, MIPP is a complex experiment with great physics potential. We
can do considerably better with small marginal increases in manpower. To
this end, we visited the DoE two weeks ago to ask for support for travel
and graduate students for three Universities (Virginia, Iowa and S.
Carolina). Offline analysis of data is also shorthanded and would
benefit considerably by increasing the post-doc slots for the Fermilab
component of MIPP from one to two.