Difference between revisions of "Kinematics"
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+ | * W^2 = M^2 - Q^2 + 2*M*nu (W=1232 MeV) | ||
* Calibration for relative acceptance measurement With Sieve slit In/Out | * Calibration for relative acceptance measurement With Sieve slit In/Out | ||
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=== HRS(L) and HRS (R), Delta resonance C(e,e') - Two pass === | === HRS(L) and HRS (R), Delta resonance C(e,e') - Two pass === |
Revision as of 09:36, 2 January 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 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
- 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 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 | 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 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 | 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
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
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 |
- With Sieve slit In/Out
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 | 1160 | 1097.2 | 17.5 | -12.5 | 349.5 | -71.0 | -50 | 4cm LH2 | Kin Map | |||
2 | 1160 | 1076.5 | 20.4 | -12.5 | 404 | -68.08 | -50 | 4 cm LH2 | Kin Map | |||
3 | 1160 | 1057.7 | 22.8 | -12.5 | 450 | -65.7 | -50 | 4 cm LH2 | Kin Map | |||
4 | 2258 | 2136.1 | 12.5 | -12.5 | 493 | -69.54 | -50 | 4 cm LH2 | Kin Map | |||
5 | 2258 | 2086.8 | 15 | -12.5 | 592.0 | -65.84 | -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 | 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 | 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 | 2258#. | 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
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 | 3686.6 | 19.06 | 1270.8 | -34 | 500 | -99.68 | 500 | -99.68 | 4 cm LD2 | Kin Map | |
6 | 4454 | 3686.6 | 19.06 | 1366.9 | -41.65 | 300 | -99.97 | 300 | -99.97 | 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 | 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 |