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 Quasi Elastic C(e,e'p)
- 2.8 HRS(L) and HRS (R) C(e,e'p)
- 3 BigBite Calibration
- 4 Neutron Array calibration
- 5 Production
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
|
1162
|
1204.2 (1208.2)
|
15
|
1204.2 (1208.2)
|
-15
|
|
|
|
|
Carbon (Ta)
|
Kin Map
|
|
| 2
|
1162
|
1181.1 (1184.9)
|
15
|
1181.1 (1184.9)
|
-15
|
|
|
|
|
Carbon (Ta)
|
Kin Map
|
|
| 3
|
1162
|
1157.9 (1161.7)
|
15
|
1157.9 (1161.7)
|
-15
|
|
|
|
|
Carbon (Ta)
|
Kin Map
|
|
| 4
|
1162
|
1134.7 (1138.5)
|
15
|
1134.7 (1138.5)
|
-15
|
|
|
|
|
Carbon (Ta)
|
Kin Map
|
|
| 5
|
1162
|
1111.6 (1115.3)
|
15
|
1111.6 (1115.3)
|
-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
|
1162
|
1162.4
|
15
|
1162.4
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
| 2
|
1162
|
1140.1
|
15
|
1140.1
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
| 3
|
1162
|
1117.7
|
15
|
1117.7
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
| 4
|
1162
|
1095.4
|
15
|
1095.4
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
| 5
|
1162
|
1073
|
15
|
1073
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
- Calibration for relative acceptance measurement With Sieve slit In/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
|
1162
|
820.1
|
15
|
820.1
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
| 2
|
1162
|
804.4
|
15
|
804.4
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
| 3
|
1162
|
788.6
|
15
|
788.6
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
| 4
|
1162
|
772.8
|
15
|
772.8
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
| 5
|
1162
|
757.1
|
15
|
757.1
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
- Calibration for relative acceptance measurement With Sieve slit In/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
|
2262
|
1847
|
15
|
1847
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
| 2
|
2262
|
1811.5
|
15
|
1811.5
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
| 3
|
2262
|
1776
|
15
|
1776
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
| 4
|
2262
|
1740.5
|
15
|
1740.5
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
| 5
|
2262
|
1705
|
15
|
1705
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
- Calibration for relative acceptance measurement With Sieve slit In/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
|
1162
|
822
|
48.2
|
868
|
-44.96
|
|
|
|
|
LH2
|
Kin Map
|
|
| 2
|
2262
|
1610
|
33.7
|
1284
|
-44.06
|
|
|
|
|
LH2
|
Kin Map
|
|
HRS(L) and HRS (R) H(e,e'p)
| 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
|
2262
|
1284
|
44.06
|
1610
|
-33.7
|
|
|
|
|
LH2
|
Kin Map
|
|
Quasi Elastic C(e,e'p)
- This calibration should be done AFTER 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
|
|
|
|
| 4
|
2262
|
592
|
65.8
|
2090.3
|
-15
|
|
|
|
|
Carbon
|
Kin Map
|
|
| 5
|
2262
|
493
|
69.5
|
2139.9
|
-12.5
|
|
|
|
|
Carbon
|
Kin Map
|
|
HRS(L) and HRS (R) C(e,e'p)
| 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
BigBite Calibration
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
|
1162
|
1099.0
|
17.5
|
|
-12.5
|
349.5
|
-71.0
|
|
-50
|
4cm LH2
|
Kin Map
|
|
| 2
|
1162
|
1077.5
|
20.5
|
|
-12.5
|
407.1
|
-68.0
|
|
-50
|
4 cm LH2
|
Kin Map
|
|
| 3
|
1162
|
1057.9
|
23
|
|
-12.5
|
454.2
|
-65.5
|
|
-50
|
4 cm LH2
|
Kin Map
|
|
| 4
|
2262
|
2139.7
|
12.5
|
|
-12.5
|
494.4
|
-69.5
|
|
-50
|
4 cm LH2
|
Kin Map
|
|
| 5
|
2262
|
2090.3
|
15
|
|
-12.5
|
593.0
|
-65.8
|
|
-50
|
4 cm LH2
|
Kin Map
|
|
- We do not know how to get within the constrains protons of more than 600 MeV/c to BB for Calibration.
- 1st pass is not sure due to Qweak
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
|
2262
|
2090.3
|
15
|
|
-12.5
|
|
-68
|
|
-50
|
1 mm Carbon
|
Kin Map
|
|
| 2
|
2262
|
2090.3
|
15
|
|
-12.5
|
|
-68
|
|
-50
|
multifoil Carbon
|
Kin Map
|
|
| 3*
|
2262
|
2090.3
|
15
|
|
-12.5
|
|
-68
|
|
-50
|
multifoil Carbon
|
Kin Map
|
|
| 4*
|
2262
|
2090.3
|
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
|
2262
|
2090.3
|
15
|
|
-12.5
|
|
-68
|
|
-50
|
4 cm LH2
|
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
|
2262#.
|
27.5
|
|
-12.5
|
|
-68
|
1069.2
|
-50
|
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
|
4462
|
3609.4
|
20.3
|
1375.5
|
-33.4
|
500
|
-98.2
|
500
|
-98.2
|
4 cm LD2
|
Kin Map
|
|
| 6
|
4462
|
3609.4
|
20.3
|
1470.2
|
-40.5
|
300
|
-97.9
|
300
|
-97.9
|
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
|
4462
|
3609.4
|
20.3
|
1427.5
|
-36.9
|
400
|
-99.3
|
400
|
-99.3
|
4 cm LHe4
|
Kin Map
|
|
| 2
|
4462
|
3609.4
|
20.3
|
1375.5
|
-33.4
|
500
|
-98.2
|
500
|
-98.2
|
4 cm LHe4
|
Kin Map
|
|
| 3
|
4462
|
3609.4
|
20.3
|
1297.1
|
-29.03
|
625
|
-95.3
|
625
|
-95.3
|
4 cm LHe4
|
Kin Map
|
|
| 4
|
4462
|
3609.4
|
20.3
|
1200.8
|
-24.5
|
755
|
-91.2
|
755
|
-91.2
|
4 cm LHe4
|
Kin Map
|
|
| 5
|
4462
|
3609.4
|
20.3
|
1099.3
|
-20.1
|
875
|
-87.1
|
875
|
-87.1
|
4 cm LHe4
|
Kin Map
|
|
