Difference between revisions of "Targets"

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(Expanded physics plan for chosen targets)
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Here's a list of included (either in x>1 or EMC) targets (greenish) and possible new targets (reddish).   
 
Here's a list of included (either in x>1 or EMC) targets (greenish) and possible new targets (reddish).   
  
 +
PRIMARY PHYSICS TOPICS:
 +
 +
0) 2 <= A <= 12
 +
- Extract EMC effect and SRCs for nuclei where detailed ab initio calculations can be performed
 +
- Examine nuclei with significant cluster structure
 +
- Use nuclei which differ by single proton(neutron) to extract contribution of 'smeared' nucleon to F2A
 +
----------------------------------------------------------
 +
1) 2 <= A <= 96, |n/p-1|<20% [11 nuclei]
 +
- A-dependence over maximal range in A with minimal isoscalar correction
 +
----------------------------------------------------------
 +
2) A ~ 50, 1 <= n/p <= 1.4 [6 nuclei]
 +
- Map out variation with n/p with minimal A-dependence
 +
----------------------------------------------------------
 +
3) 12 <= A <= 232, n/p grows as ln(A) from 1 to 1.6
 +
----------------------------------------------------------
  
 
{| class="wikitable"
 
{| class="wikitable"
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! scope="col"| Z
 
! scope="col"| Z
 
! scope="col"| Max I
 
! scope="col"| Max I
−
! scope="col"| Why we like it
+
! scope="col"| Physics program [see above]
 +
! scope="col"| Other properties
 
|-
 
|-
 
|- bgcolor="#58FA58"
 
|- bgcolor="#58FA58"
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| 1
 
| 1
 
| dunno
 
| dunno
−
| Calibration stuff
+
|
 +
| Calibration
 
|-
 
|-
 
|- bgcolor="#58FA58"
 
|- bgcolor="#58FA58"
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| 1
 
| 1
 
| dunno
 
| dunno
−
| You know
+
| 0, 1
 +
|
 
|-
 
|-
 
|- bgcolor="#58FA58"
 
|- bgcolor="#58FA58"
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| 2
 
| 2
 
| dunno
 
| dunno
−
| no words
+
| 0
 +
|
 
|-
 
|-
 
|- bgcolor="#58FA58"
 
|- bgcolor="#58FA58"
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| 2
 
| 2
 
| dunno
 
| dunno
−
| no words
+
| 0, 1
 +
|
 
|-
 
|-
 
|- bgcolor="#58FA58"
 
|- bgcolor="#58FA58"
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| 3
 
| 3
 
| dunno
 
| dunno
−
| Light target, isotope 1
+
| 0, 1, 3
 +
| Isospin scan #1 [n/p=1]
 
|-
 
|-
 
|- bgcolor="#58FA58"
 
|- bgcolor="#58FA58"
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| 7
 
| 7
 
| dunno
 
| dunno
−
| Light target, isotope 2
+
| 0, 3
 +
| Isospin scan #1 [n/p~1.3]
 
|-
 
|-
 
|- bgcolor="#58FA58"
 
|- bgcolor="#58FA58"
 
! scope="row"| Beryllium
 
! scope="row"| Beryllium
 
| 9
 
| 9
−
| 4
+
| 0, 4
 
| dunno
 
| dunno
−
| It's "special"
+
| 3
 +
| Greatest clustering effects
 
|-
 
|-
 
|- bgcolor="#58FA58"
 
|- bgcolor="#58FA58"
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| 5
 
| 5
 
| dunno
 
| dunno
−
| Light target, isotope 1
+
| 0, 1, 3
 +
| Isospin scan #2 [n/p=1]
 
|-
 
|-
 
|- bgcolor="#58FA58"
 
|- bgcolor="#58FA58"
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| 5
 
| 5
 
| dunno
 
| dunno
−
| Light target, isotope 2
+
| 0, 3
 +
| Isospin scan #2 [n/p~1.2]
 
|-
 
|-
 
|- bgcolor="#58FA58"
 
|- bgcolor="#58FA58"
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| 6
 
| 6
 
| dunno
 
| dunno
−
| Pretty standard, really
+
| 0, 1, 3
 +
| Calibration, reference
 
|-
 
|-
 
|- bgcolor="#58FA58"
 
|- bgcolor="#58FA58"
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| 13
 
| 13
 
| 40uA
 
| 40uA
−
| Not sure, medium target?
+
| 1, 3
 +
|
 
|-
 
|-
 
|- bgcolor="#58FA58"
 
|- bgcolor="#58FA58"
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| 20
 
| 20
 
| dunno
 
| dunno
−
| isospin dependence
+
| 1, 2
 +
| Isospin scan #3 [n/p=1]
 
|-
 
|-
 
|- bgcolor="#58FA58"
 
|- bgcolor="#58FA58"
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| 20
 
| 20
 
| dunno
 
| dunno
−
| isospin dependence
+
| 2
 +
| Isospin scan #3 [n/p~1.4]
 
|-
 
|-
 
|- bgcolor="#FA5882"
 
|- bgcolor="#FA5882"
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| 22
 
| 22
 
| 80 uA
 
| 80 uA
−
| isospin dependence (buddy for 48Ca)
+
| 1, 2, 3
 +
| Isospin scan #3 [n/p~1.2]
 
|-
 
|-
 
|- bgcolor="#FA5882"
 
|- bgcolor="#FA5882"
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| 28
 
| 28
 
| 80uA
 
| 80uA
−
| isospin dependence
+
| 1, 2
 +
|
 
|-
 
|-
 
|- bgcolor="#FA5882"
 
|- bgcolor="#FA5882"
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| 28
 
| 28
 
| 80uA
 
| 80uA
−
| isospin dependence
+
| 2, 3
 +
|
 
|-
 
|-
 
|- bgcolor="#58FA58"
 
|- bgcolor="#58FA58"
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| 29
 
| 29
 
| 80uA
 
| 80uA
−
| Historical reasons
+
| 1, 2, 3
 +
|
 
|-
 
|-
 
|- bgcolor="#FA5882"
 
|- bgcolor="#FA5882"
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| 44
 
| 44
 
| 80uA
 
| 80uA
−
| isospin dependence
+
| 1
 +
| Isospin scan #4 [n/p~1.2]
 
|-
 
|-
 
|- bgcolor="#FA5882"
 
|- bgcolor="#FA5882"
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| 44
 
| 44
 
| 80uA
 
| 80uA
−
| isospin dependence
+
| 3
 +
| Isospin scan #4 [n/p~1.4]
 
|-
 
|-
 
|- bgcolor="#58FA58"
 
|- bgcolor="#58FA58"
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| 79
 
| 79
 
| 80uA
 
| 80uA
−
| Historical reasons
+
| 3
 +
|
 
|-
 
|-
 
|- bgcolor="#FA5882"
 
|- bgcolor="#FA5882"
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| 90
 
| 90
 
| 80uA
 
| 80uA
−
| distorted nucleus - long vs short range correlations
+
| 3
 +
| Extreme n/p, distorted nucleus (long vs short range correlations)
 
|-
 
|-
 
|- bgcolor="#FA5882"
 
|- bgcolor="#FA5882"
−
! scope="row"| Uranium-239
+
! scope="row"| Uranium-238
−
| 239
+
| 238
 
| 92
 
| 92
 
| 10uA
 
| 10uA
−
| best n/p, but not much better than thorium
+
| 3
 +
| Extreme n/p, NOT distorted
 
|}
 
|}

Revision as of 16:01, 7 June 2013

Here's a list of included (either in x>1 or EMC) targets (greenish) and possible new targets (reddish).

PRIMARY PHYSICS TOPICS:

0) 2 <= A <= 12 - Extract EMC effect and SRCs for nuclei where detailed ab initio calculations can be performed - Examine nuclei with significant cluster structure - Use nuclei which differ by single proton(neutron) to extract contribution of 'smeared' nucleon to F2A

1) 2 <= A <= 96, |n/p-1|<20% [11 nuclei] - A-dependence over maximal range in A with minimal isoscalar correction

2) A ~ 50, 1 <= n/p <= 1.4 [6 nuclei] - Map out variation with n/p with minimal A-dependence

3) 12 <= A <= 232, n/p grows as ln(A) from 1 to 1.6

Target A Z Max I Physics program [see above] Other properties
Hydrogen 1 1 dunno Calibration
Deuterium 2 1 dunno 0, 1
Helium-3 3 2 dunno 0
Helium-4 4 2 dunno 0, 1
Lithium-6 6 3 dunno 0, 1, 3 Isospin scan #1 [n/p=1]
Lithium-7 3 7 dunno 0, 3 Isospin scan #1 [n/p~1.3]
Beryllium 9 0, 4 dunno 3 Greatest clustering effects
Boron-10 10 5 dunno 0, 1, 3 Isospin scan #2 [n/p=1]
Boron-11 11 5 dunno 0, 3 Isospin scan #2 [n/p~1.2]
Carbon-12 12 6 dunno 0, 1, 3 Calibration, reference
Aluminum 27 13 40uA 1, 3
Calcium-40 40 20 dunno 1, 2 Isospin scan #3 [n/p=1]
Calcium-48 48 20 dunno 2 Isospin scan #3 [n/p~1.4]
Titanium-48 48 22 80 uA 1, 2, 3 Isospin scan #3 [n/p~1.2]
Nickel-58 58 28 80uA 1, 2
Nickel-64 64 28 80uA 2, 3
Copper-Nat 63 29 80uA 1, 2, 3
Ruthenium-96 96 44 80uA 1 Isospin scan #4 [n/p~1.2]
Ruthenium-104 104 44 80uA 3 Isospin scan #4 [n/p~1.4]
Gold-197 197 79 80uA 3
Thorium-232 232 90 80uA 3 Extreme n/p, distorted nucleus (long vs short range correlations)
Uranium-238 238 92 10uA 3 Extreme n/p, NOT distorted
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