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Reynier Cruz Torres
Hall A/C Collabora4on Mee4ng, JLab January 30th, 2019
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Nucleon-nucleon interac4on
Crucial star4ng point for modern calcula4ons
- f nuclear structure and reac4ons, and the
Probing correla4ons in A=3 systems using electron scaEering Reynier - - PowerPoint PPT Presentation
Probing correla4ons in A=3 systems using electron scaEering Reynier - - PowerPoint PPT Presentation
Probing correla4ons in A=3 systems using electron scaEering Reynier Cruz Torres Hall A/C Collabora4on Mee4ng, JLab January 30 th , 2019 1 Nucleon-nucleon interac4on Crucial star4ng point for modern calcula4ons of nuclear structure and
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SLIDE 3
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Nucleon-nucleon interac4on
Strong nuclear force, Coulomb force, spins, magne4c moments … Residual interac4on from interac4on between nucleon cons4tuents Crucial star4ng point for modern calcula4ons
- f nuclear structure and reac4ons, and the
proper4es of dense astrophysical objects such as neutron stars.
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Take your pick!
- Hamada-Johnston Poten4al
- Yale-Group Poten4al
- Reid68 Poten4al
- Reid-Day Poten4al
- Partovi-Lomon Poten4al
- Paris-Group Poten4als
- Stony-Brook Poten4al
- dTRS Super-SoY-Core Poten4als
- Funabashi Poten4als
- Urbana-Group Poten4als
- Argonne-Group Poten4als
- ArgonneV14
- Argonne V28
- ArgonneV18
- Bonn-Group Poten4als
- Full-Bonn Poten4al
- CD-Bonn Poten4al
- Padua-Group Poten4al
- Nijmegen-Group Poten4als
- Nijm78 Poten4al
- Par4al-Wave-Analysis
- Nijm93
- NijmI
- NijmII
- Reid93 Poten4al
- Extended SoY-Core
- Nijmegen Op4cal Poten4als
- Hamburg-Group Poten4als
- Moscow-Group Poten4als
- Budapest(IS)-Group Poten4al
- MIK-Group Poten4al
- Imaginary Poten4als
- QCD-Inspired Poten4als
- The Oxford Poten4al
- The First CHPT NN Poten4als
- Sao Paulo-Group CHPT Poten4als
- Munich-Group CHPT Poten4als
- Idaho-Group CHPT Poten4als
- Bochum-Julich-Group CHPT
Poten4als
- LO Poten4als
- NLO Poten4als
- NNLO Poten4als
- NNNLO Poten4als
- and more!
arXiv:nucl-th/0702078
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Short-range behavior in unconstrained
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Why light nuclei?
Many of their proper4es can be:
- precisely measured.
- exactly calculated for a given two- and three-nucleon
interac4on model.
Why Tri4um?
- Isospin doublet:
- 3He is stable mirror nucleus
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Previous studies and non-QE mechanisms
- F. Benmokhtar et al., PRL 94, 082305 (2005)
3He
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Minimizing non-QE mechanisms
Q2 > 2 GeV2 xB > 1
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Minimizing non-QE mechanisms
Boeglin et al., PRL 107 (2011) 262501 Deuteron
σFull/σPWIA
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Further minimizing FSI: 3He/3H ra4o
In PWIA: thus:
σ3He(e,e’p) S3He(|pi|,Ei) σ3H(e,e’p) S3H(|pi|,Ei) ≅
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R=2
Further minimizing FSI: 3He/3H ra4o
k
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SRC and np-dominance
Single Nucleon Behavior np-SRC pairs
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3He/3H ra4o theory predic4ons
R=2 k
3He (p) 3He (n) 3He (p) 3H (p) ≅
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3He/3H ra4o theory predic4ons Transi4on Region
(single-nucleon behavior) (2N-SRC behavior)
A - 1 A - 2
k
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3He/3H ra4o theory predic4ons
k
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Missing momentum pmiss = pp - q
q a proxi for the nucleon momentum before the interac4on took place
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58.5o 48.8o 1.5 GeV/c 1.2 GeV/c 20.9o 3.5 GeV/c Ebeam = 4.3 GeV
high-Pmiss kinema4cs low-Pmiss kinema4cs
Counts
Kinema4cal seongs
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Measured 3He/3H ra4o
Simula4on Measurement
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Correc4ons
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Final results
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Final results
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BeEer agreement with PWIA calcula4ons
3He
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Effect of Final-State Interac4ons
PWIA FSI-f1 FSI-f2
[PRELIMINARY]
10% 5% 5% 1 10%
(3He/3H)FSI (3He/3H)PWIA calcula4on by
- M. Sargsian
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FSI? NN models? what causes high-pmiss ~30% discrepancy
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Thank you!
“…Physicists have devoted […] probably more man-hours [to this ques4on] than have been given to any other scien4fic ques4on in the history of mankind.” Hans A. Bethe
“What holds the nucleus together”, Scien4fic American 189, 58 (1953).