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=== Full acceptance calibration of BigBite C(e,e'p) and C(e,p) === | === Full acceptance calibration of BigBite C(e,e'p) and C(e,p) === |
Revision as of 19:40, 8 February 2011
Contents
- 1 Kinematics
- 2 HRS Calibration
- 2.1 HRS(L) and HRS (R) Elastic C(e,e') [ and Ta(e,e')]
- 2.2 HRS(L) and HRS (R), Quasi Elastic C(e,e')
- 2.3 HRS(L) and HRS (R), Delta resonance C(e,e') - One pass
- 2.4 HRS(L) and HRS (R), Delta resonance C(e,e') - Two pass
- 2.5 HRS(L) and HRS (R) H(e,e'p)
- 2.6 HRS(L) and HRS (R) H(e,e'p)
- 2.7 HRS(L) and HRS (R) H(e,e'p) (alternative)
- 2.8 HRS(L) and HRS (R) H(e,e'p) (alternative)
- 2.9 Quasi Elastic C(e,e'p)
- 2.10 HRS(L) and HRS (R) C(e,e'p)
- 2.11 HRS(L) and HRS (R) C(e,e'p) (alternative)
- 3 BigBite Calibration
- 4 Neutron Array calibration
- 5 Production
- 6 Production (alternative) Q2=1.8
Kinematics
Kinematic Calculators
HRS Calibration
HRS(L) and HRS (R) Elastic C(e,e') [ and Ta(e,e')]
Kin | Ein [MeV] | HRS(L) Electrons | HRS(R) Electrons | BigBite
(not in use) |
Neutron Arm
(not in use) |
Target | Plots | MCEEP | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
H# | P(e') | Theta (e') | P(e') | Theta (e') | P | Theta | P | Theta | ||||
1 | 1160 | 1202.1 (1206.1) | 15 | 1202.1 (1206.1) | -15 | Carbon (Ta) | Kin Map | |||||
2 | 1160 | 1179 (1182.9) | 15 | 1179 (1182.9) | -15 | Carbon (Ta) | Kin Map | |||||
3 | 1160 | 1155.9 (1159.7) | 15 | 1155.9 (1159.7) | -15 | Carbon (Ta) | Kin Map | |||||
4 | 1160 | 1132.8 (1136.5) | 15 | 1132.8 (1136.5) | -15 | Carbon (Ta) | Kin Map | |||||
5 | 1160 | 1109.6 (1113.3) | 15 | 1109.6 (1113.3) | -15 | Carbon (Ta) | Kin Map |
- The setup is according the Elastic scattering from Carbon
- Values in brackets for Ta
- With Sieve slit In/Out and multi foil target
- Additional run at H3 kinematics with raster on
HRS(L) and HRS (R), Quasi Elastic C(e,e')
Kin | Ein [MeV] | HRS(L) Electrons | HRS(R) Electrons | BigBite
(not in use) |
Neutron Arm
(not in use) |
Target | Plots | MCEEP | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
I # | P(e') | Theta (e') | P(e') | Theta (e') | P | Theta | P | Theta | ||||
1 | 1160 | 1157.6 | 15 | 1157.6 | -15 | Carbon | Kin Map | |||||
2 | 1160 | 1135.4 | 15 | 1135.4 | -15 | Carbon | Kin Map | |||||
3 | 1160 | 1113.1 | 15 | 1113.1 | -15 | Carbon | Kin Map | |||||
4 | 1160 | 1090.84 | 15 | 1090.84 | -15 | Carbon | Kin Map | |||||
5 | 1160 | 1068.6 | 15 | 1068.6 | -15 | Carbon | Kin Map |
- Calibration for relative acceptance measurement With Sieve slit Out
HRS(L) and HRS (R), Delta resonance C(e,e') - One pass
Kin | Ein [MeV] | HRS(L) Electrons | HRS(R) Electrons | BigBite
(not in use) |
Neutron Arm
(not in use) |
Target | Plots | MCEEP | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
L # | P(e') | Theta (e') | P(e') | Theta (e') | P | Theta | P | Theta | ||||
1 | 1160 | 818.2 | 15 | 818.2 | -15 | Carbon | Kin Map | |||||
2 | 1160 | 802.4 | 15 | 802.4 | -15 | Carbon | Kin Map | |||||
3 | 1160 | 786.7 | 15 | 786.7 | -15 | Carbon | Kin Map | |||||
4 | 1160 | 770.9 | 15 | 770.9 | -15 | Carbon | Kin Map | |||||
5 | 1160 | 755.2 | 15 | 755.2 | -15 | Carbon | Kin Map |
- W^2 = M^2 - Q^2 + 2*M*nu (W=1232 MeV)
- Calibration for relative acceptance measurement With Sieve slit Out
HRS(L) and HRS (R), Delta resonance C(e,e') - Two pass
Kin | Ein [MeV] | HRS(L) Electrons | HRS(R) Electrons | BigBite
(not in use) |
Neutron Arm
(not in use) |
Target | Plots | MCEEP | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
M # | P(e') | Theta (e') | P(e') | Theta (e') | P | Theta | P | Theta | ||||
1 | 2258 | 1843.4 | 15 | 1843.4 | -15 | Carbon | Kin Map | |||||
2 | 2258 | 1807.9 | 15 | 1807.9 | -15 | Carbon | Kin Map | |||||
3 | 2258 | 1772.5 | 15 | 1772.5 | -15 | Carbon | Kin Map | |||||
4 | 2258 | 1737 | 15 | 1737 | -15 | Carbon | Kin Map | |||||
5 | 2258 | 1701.6 | 15 | 1701.6 | -15 | Carbon | Kin Map |
- Calibration for relative acceptance measurement With Sieve slit Out
HRS(L) and HRS (R) H(e,e'p)
Kin | Ein [MeV] | HRS(L) Electrons | HRS(R) Protons | BigBite
(not in use) |
Neutron Arm
(not in use) |
Target | Plots | MCEEP | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
G# | P(e') | Theta (e') | P(p) | Theta (p) | P | Theta | P | Theta | ||||
1 | 1160 | 820 | 48.3 | 867 | -44.92 | LH2 | Kin Map | |||||
2 | 2258 | 1605 | 33.8 | 1285 | -44.01 | LH2 | Kin Map |
- With Sieve slit In/Out
What is this?! We need a right HRS optics run with sieve in and out at ~1.5 GeV/c. I don't understand this at all.
HRS(L) and HRS (R) H(e,e'p)
- Polarity change
Kin | Ein [MeV] | HRS(L) Protons | HRS(R) Electrons | BigBite
(not in use) |
Neutron Arm
(not in use) |
Target | Plots | MCEEP | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
G# | P(p) | Theta (p) | P(e) | Theta (e) | P | Theta | P | Theta | ||||
3 | 2258 | 1285 | 44.01 | 1605 | -33.8 | LH2 | Kin Map |
- With Sieve slit In/Out
HRS(L) and HRS (R) H(e,e'p) (alternative)
Kin | Ein [MeV] | HRS(L) Electrons | HRS(R) Protons | BigBite
(not in use) |
Neutron Arm
(not in use) |
Target | Plots | MCEEP | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
G# | P(e') | Theta (e') | P(p) | Theta (p) | P | Theta | P | Theta | ||||
1 | 2258 | 1420 | 41.0 | 1508 | -38.13 | LH2 | Kin Map |
- With Sieve slit In/Out
HRS(L) and HRS (R) H(e,e'p) (alternative)
- Polarity change
Kin | Ein [MeV] | HRS(L) Protons | HRS(R) Electrons | BigBite
(not in use) |
Neutron Arm
(not in use) |
Target | Plots | MCEEP | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
G# | P(p) | Theta (p) | P(e) | Theta (e) | P | Theta | P | Theta | ||||
2 | 2258 | 1508 | 38.13 | 1420 | -41.0 | LH2 | Kin Map |
- With Sieve slit In/Out
Quasi Elastic C(e,e'p)
Note : These kinematics were a alternative to the first pass optics data for the two HRS's. See Kinematics H1-H5 above. These data points G4 and G5 are no longer necessary.
Quasi Elastic C(e,e'p) Kin Table
HRS(L) and HRS (R) C(e,e'p)
Original kin table
These are not quasielastic kinematics. The momentum appears to reflect the delta-resonance region instead.
Kin | Ein [MeV] | HRS(L) Electrons | HRS(R) Protons | BigBite
(not in use) |
Neutron Arm
(not in use) |
Target | Plots | MCEEP | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
F # | P(e') | Theta (e') | P(p) | Theta (p) | P | Theta | P | Theta | ||||
1 | 4462 | 3518.5 | 15 | 1400 | -40.57 | Carbon | Kin Map | |||||
2 | 4462 | 3518.5 | 15 | 1400 | -40.57 | Multi Foil Carbon | Kin Map |
- 4 pass calibration at x=1, with sieve slit In/Out (Doesn't make sense for right ARM due to punchthrough]
HRS(L) and HRS (R) C(e,e'p) (alternative)
Kin | Ein [MeV] | HRS(L) Electrons | HRS(R) Protons | BigBite
(not in use) |
Neutron Arm
(not in use) |
Target | Plots | MCEEP | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
F # | P(e') | Theta (e') | P(p) | Theta (p) | P | Theta | P | Theta | ||||
1 | 4458 | 3432 | 20.4 | 1721 | -44.0 | Carbon | Kin Map | |||||
2 | 4458 | 3432 | 20.4 | 1721 | -44.0 | Multi Foil Carbon | Kin Map |
- With Sieve slit In/Out
BigBite Calibration
Important : BB calibration can't be done with 3 or 4 pass because we can't lower the HRS left angle below 12.5 deg and BB angle lower than ~ 70 Deg.
H(e,e'p) HRS(L) and BigBite
Kin | Ein [MeV] | HRS(L) Electrons | HRS(R)
(not in use) |
BigBite
(-68 Deg)* |
Neutron Arm
(not in use, at 50 deg) |
Target | Plots | MCEEP | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
A# | P(e') | Theta (e') | P | Theta | P(p) | Theta (p) | P | Theta | ||||
1 | 1160 | 1097.2 | 17.5 | -12.5 | 349.5 | -71.0 | -50 | 4cm LH2 | Kin Map |
P(p) vs P(e) P(p) vs Ph(p) Ph(e) vs Ph(p) Mceep summary | ||
2 | 1160 | 1076.5 | 20.4 | -12.5 | 404 | -68.08 | -50 | 4 cm LH2 | Kin Map |
P(p) vs P(e) P(p) vs Ph(p) Ph(e) vs Ph(p) Mceep summary | ||
3 | 1160 | 1057.7 | 22.8 | -12.5 | 450 | -65.7 | -50 | 4 cm LH2 | Kin Map |
P(p) vs P(e) P(p) vs Ph(p) Ph(e) vs Ph(p) Mceep summary | ||
4 | 2258 | 2136.1 | 12.5 | -12.5 | 493 | -69.54 | -50 | 4 cm LH2 | Kin Map |
P(p) vs P(e) P(p) vs Ph(p) Ph(e) vs Ph(p) Mceep summary | ||
5 | 2258 | 2.054 | 16.5 | -12.5 | 651 | -63.7 | -50 | 4 cm LH2 | Kin Map |
P(p) vs P(e) P(p) vs Ph(p) Ph(e) vs Ph(p) Mceep summary |
- We do not know how to get within the constrains protons of more than 600 MeV/c to BB for Calibration.
(e,e'd) HRS(L) and BigBite
Kin | Ein [MeV] | HRS(L) Electrons | HRS(R)
(not in use) |
BigBite
(-68 Deg)* |
Neutron Arm
(not in use, at 50 deg) |
Target | Plots | MCEEP | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
R# | P(e') | Theta (e') | P | Theta | P(d) | Theta (d) | P | Theta | ||||
1 | 2258 | 2119.04 | 19 | -12.5 | 735 | -69.76 | -50 | 4cm LD2 | Kin Map |
Full acceptance calibration of BigBite C(e,e'p) and C(e,p)
Kin | Ein [MeV] | HRS(L) (Electrons) | HRS(R) (not in use)
(not in use) |
BigBite
(-68 Deg)* |
Neutron Arm
(not in use, at 50 deg) |
Target | Plots | MCEEP | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
B# | P(e') | Theta (e') | P | Theta | P(p) | Theta (p) | P | Theta | ||||
1 | 2258 | 2087 | 15 | -12.5 | -68 | -50 | 1 mm Carbon | Kin Map | ||||
2 | 2258 | 2087 | 15 | -12.5 | -68 | -50 | multifoil Carbon | Kin Map | ||||
3* | 2258 | 2087 | 15 | -12.5 | -68 | -50 | multifoil Carbon | Kin Map | ||||
4* | 2258 | 2087 | 15 | -12.5 | -68 | -50 | multifoil Carbon | Kin Map |
- 3* Same as B2 with Sieve Slit
- 4* Same as B2 with Sieve Slit and no Field in BigBite
Full acceptance calibration of BigBite d(e,e'p) and d(e,p)
Kin | Ein [MeV] | HRS(L) (Electrons) | HRS(R) (not in use)
(not in use) |
BigBite
(-68 Deg)* |
Neutron Arm
(not in use, at 50 deg) |
Target | Plots | MCEEP | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
C# | P(e') | Theta (e') | P | Theta | P(p) | Theta (p) | P | Theta | ||||
1 | 2258 | 2086.8 | 15 | -12.5 | -68 | -50 | 4 cm LD2 | Kin Map |
Neutron Array calibration
H(e,e'p) HRS(L) and Neutron Array for protons
Kin | Ein [MeV] | HRS(L) Electrons | HRS(R)
(not in use) |
BigBite
(Not in use) |
Neutron Arm
no lead wall 50 Deg 15m from target |
Target | Plots | MCEEP | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
D# | P(e') | Theta (e') | P | Theta | P(p) | Theta (p) | P | Theta | ||||
1 | 2258. | 1772 | 27.6 | -12.5 | -68 | 1071 | -50.07 | 4 cm LH2 | Kin Map |
This can also be done with 4.4 GeV beam and E' of 3.9 GeV and 12.5 degrees with the proton going with 1 GeV to 57 degrees. MUCH higher cross section if done with 4th pass. Not sure why done with 2nd pass?!
d(e,e'pn) x<1 HRS(L), HRS(R) and Neutron Array (n - efficiency)
Kin | Ein [MeV] | HRS(L) PROTONS | HRS(R) ELECTRONS | BigBite at -99 Deg, Magnet on
detector off |
Neutron Arm
Behind BigBite and lead wall |
Target | Plots | MCEEP | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
E# | P(p) | Theta (p) | P(e') | Theta(e') | P | Theta | P(n) | Theta(n) | ||||
1 | 2262 | 778.7 | 59.2 | 1948.7 | -12.5 | -99 | 250 | -99 | 4 cm LH2 | Kin Map | ||
2 | 2262 | 985.8 | 51.9 | 1757.9 | -12.5 | -99 | 400 | -99 | 4 cm LH2 | Kin Map |
- In this calibration we need to switch the polarity of HRS arms.
^ First Kinematics cross section of 0.7E-7 fm^2/MeV/sr^2 BUT recoil is only 250 MeV/c. TOO SMALL?! (i.e. below physics range)
^ Second Kinematics cross section of 0.6E-8 fm^2/MeV/sr^2 for recoil of 400 MeV/c
4400 GeV beam 4068 & 12.5 electron with -35.5 & 628 proton which will put a 527 MeV/c neutron into 99 degrees. [MCEEP PWBA sigma of 0.8E-9 fm^2/MeV/sr^2 BUT should x10 higher due to FSI in these kinematics]
For cm of exactly 90 4400 GeV beam 12.5 electron and 15 degrees proton at 700 MeV/c 0.1E-9 {no FSI in simulation}
Production
D(e,e'pn) Triple coincidence for x>1
Kin | Ein [MeV] | HRS(L) Electrons | HRS(R) Protons | BigBite | Neutron Arm | Target | Plots | MCEEP | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
K# | P(e') | Theta (e') | P | Theta | P(p) | Theta (p) | P | Theta | ||||
2 | 4454 | 3601.4 | 20.33 | 1375.8 | -33.4 | 500 | -98.23 | 500 | -98.23 | 4 cm LD2 | Kin Map | |
6 | 4454 | 3601.4 | 20.33 | 1468.9 | -40.5 | 300 | -97.63 | 300 | -97.63 | 4 cm LD2 | Kin Map |
Kin2 above is 0.16E-10 fm-2/MeV/sr2 (0.04 (e,e'p) events per sec.) or ~2 events per minute (15cm target)
Kin6 above is 0.3E-9 fm-2/MeV/sr2
He(e,e'pp)/(e,e'pn) Triple coincidence for x>1
Kin | Ein [MeV] | HRS(L) Electrons | HRS(R) Protons | BigBite | Neutron Arm | Target | Plots | MCEEP | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
K# | P(e') | Theta (e') | P | Theta | P(p) | Theta (p) | P | Theta | ||||
1 | 4454 | 3601.4 | 20.33 | 1427.6 | -36.9 | 400 | -99.29 | 400 | -99.29 | 4 cm LHe4 | Kin Map | |
2 | 4454 | 3601.4 | 20.33 | 1375.8 | -33.4 | 500 | -98.23 | 500 | -98.23 | 4 cm LHe4 | Kin Map | |
3 | 4454 | 3601.4 | 20.33 | 1296.6 | -29 | 625 | -95.22 | 625 | -95.22 | 4 cm LHe4 | Kin Map | |
4 | 4454 | 3601.4 | 20.33 | 1201 | -24.45 | 754.7 | -91.22 | 754.7 | -91.22 | 4 cm LHe4 | Kin Map | |
5 | 4454 | 3601.4 | 20.33 | 1099.2 | -20.1 | 875 | -87.06 | 875 | -87.06 | 4 cm LHe4 | Kin Map |
Production (alternative) Q2=1.8
Notice : Mott Cross Section for Q2=1.8 GeV^2 is 1.32 times higher than Mott Cross Section for Q2=2 GeV^2
D(e,e'pn) Triple coincidence for x>1
Kin | Ein [MeV] | HRS(L) Electrons | HRS(R) Protons | BigBite | Neutron Arm | Target | Plots | MCEEP | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
L# | P(e') | Theta (e') | P | Theta | P(p) | Theta (p) | P | Theta | ||||
1 | 4454 | 3686.6 | 19.06 | 1270.8 | -34 | 500 | -99.68 | 500 | -99.68 | 4 cm LD2 | Kin Map | |
2 | 4454 | 3686.6 | 19.06 | 1366.9 | -41.65 | 300 | -99.97 | 300 | -99.97 | 4 cm LD2 | Kin Map |
He(e,e'pp)/(e,e'pn) Triple coincidence for x>1
Kin | Ein [MeV] | HRS(L) Electrons | HRS(R) Protons | BigBite | Neutron Arm | Target | Plots | MCEEP | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
M# | P(e') | Theta (e') | P | Theta | P(p) | Theta (p) | P | Theta | ||||
1 | 4454 | 3686.6 | 19.06 | 1323.97 | -37.75 | 400 | -101.14 | 400 | -101.14 | 4 cm LHe4 | Kin Map | |
2 | 4454 | 3686.6 | 19.06 | 1270.8 | -34 | 500 | -99.68 | 500 | -99.68 | 4 cm LHe4 | Kin Map | |
3 | 4454 | 3686.6 | 19.06 | 1190.2 | -29.3 | 625 | -96.3 | 625 | -96.3 | 4 cm LHe4 | Kin Map | |
4 | 4454 | 3686.6 | 19.06 | 1090.1 | -24.3 | 755.5 | -91.83 | 755.5 | -91.83 | 4 cm LHe4 | Kin Map | |
5 | 4454 | 3686.6 | 19.06 | 984.13 | -19.55 | 875 | -87.25 | 875 | -87.25 | 4 cm LHe4 | Kin Map |