Extracting the mass dependence and quantum numbers of short-range correlated pairs from<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>A</mml:mi><mml:mo>(</mml:mo><mml:mi>e</mml:mi><mml:mo>,</mml:mo><mml:msup><mml:mi>e</mml:mi><mml:mo>′</mml:mo></mml:msup><mml:mi>p</mml:mi><mml:mo>)</mml:mo></mml:mrow></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>A</mml:mi><mml:mo>(</mml:mo><mml:mi>e</mml:mi><mml:mo>,</mml:mo><mml:msup><mml:mi>e</mml:mi>

Colle, Camille; Hen, O.; Cosyn, Wim; Korover, I.; Piasetzky, E.; Ryckebusch, Jan; Weinstein, Larry

doi:10.1103/physrevc.92.024604

Cited by 44 publications

(76 citation statements)

References 36 publications

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“…It is well established that SRC pairs prefer back-to-back motion with anti-parallel momenta of the initial nucleon pair [16,27]. After introducing the following angular constraints in the ZRA cross sections of Eqs.…”

Section: -3mentioning

confidence: 99%

“…A lot of information regarding nuclear SRC has been obtained by measuring cross-section rations over extended ranges of the phase space [4,5,21,25,27].…”

Section: A(e E Pn ) Cross-section Ratiosmentioning

confidence: 99%

“…The relations for R pp A and R pn A can be inverted to extract the FSI-uncorrected cross section ratios (which are proportional to the ratios of SRC prone pairs) R pp A , R pn A from the measured values for R pp and R pn [27].…”

Section: A(e E Pn ) Cross-section Ratiosmentioning

confidence: 99%

“…The proposed factorization of the cross section in terms of F pp,D A was first confirmed in 12 C(e, e pp) measurements back in the late 1990s [9]. An effort is on its way to extract the width of the F pp,D A distribution in A(e, e pp) measurements on 12 C, 27 Al, 56 Fe and 208 Pb [25,26], and compare them with the theoretical predictions [22]. Another striking prediction of the expression (3) is that the A(e, e pN ) cross section is proportional to the number of close-proximity pN pairs in the target nucleus.…”

Section: Introductionmentioning

confidence: 99%

“…In Sec. III, we apply the developed model to four different target nuclei ( 12 C, 27 Al, 56 Fe, 208 Pb) and two very different kinematics probing SRC pairs. First, the kinematics of the A(e, e pp) crosssection measurements with the CEBAF Large Acceptance Spectrometer (CLAS) [21] covering a very large phase space.…”

Section: Introductionmentioning

confidence: 99%

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Final-state interactions in two-nucleon knockout reactions

2016

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Background: Exclusive two-nucleon knockout after electroexcitation of nuclei (A(e, e N N ) in brief) is considered to be a primary source of information about short-range correlations (SRC) in nuclei. For a proper interpretation of the data, final-state interactions (FSI) need to be theoretically controlled.Purpose: Our goal is to quantify the role of FSI effects in exclusive A(e, e pN ) reactions for four target nuclei representative for the whole mass region. Our focus is on processes that are SRC driven. We investigate the role of FSI for two characteristic detector setups corresponding with a "small" and "large" coverage of the available phase space.Method: Use is made of a factorized expression for the A(e, e pN ) cross section that is proportional to the two-body center-of-mass (c.m.) momentum distribution of close-proximity pairs. The A(e, e pp) and A(e, e pn) reactions for the target nuclei 12 C, 27 Al, 56 Fe and 208 Pb are investigated. The elastic attenuation mechanisms in the FSI are included using the relativistic multiple-scattering Glauber approximation (RMSGA). Single-charge exchange (SCX) reactions are also included. We introduce the nuclear transparency T pN A , defined as the ratio of exclusive (e, e pN ) cross sections on nuclei to those on "free" nucleon pairs, as a measure for the aggregated Conclusion:The SCX mechanisms represent a relatively small (order of a few percent) contribution of SRCdriven A(e, e pN ) processes. The mass dependence of FSI effects in exclusive A(e, e pN ) can be captured in a robust power law and is in agreement with the predictions obtained in a toy model.

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Section: -3mentioning

confidence: 99%

“…A lot of information regarding nuclear SRC has been obtained by measuring cross-section rations over extended ranges of the phase space [4,5,21,25,27].…”

Section: A(e E Pn ) Cross-section Ratiosmentioning

confidence: 99%

Section: A(e E Pn ) Cross-section Ratiosmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Final-state interactions in two-nucleon knockout reactions

2016

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Nucleon momentum distribution of 56Fe from the axially deformed relativistic mean-field model with nucleon-nucleon correlations

Wang

Niu

Zhang

et al. 2021

Sci. China Phys. Mech. Astron.

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A series of relativistic one-boson-exchange potentials for two-nucleon system, denoted as OBEPΛ, is constructed with a momentum cutoff Λ ranging from ∞ to 2 fm −1 . These potentials are developed by simultaneous fitting to nucleon-nucleon (N N ) scattering phase shifts, low-energy scattering length, effective range, and the binding energy of the deuteron. The momentum-space matrix elements of the low-momentum OBEPΛ (Λ 3 fm −1 ) demonstrate consistency with the universal behaviors observed in other realistic N N potentials evolved by renormalization group methods. These OBEPΛs are applied to calculate the equation of state of symmetric nuclear matter (SNM) within either the nonrelativistic (NR) Brueckner-Hartree-Fock (BHF) or relativistic Brueckner-Hartree-Fock (RBHF) frameworks. The results show that the saturation properties of SNM are reproduced qualitatively from the RBHF calculation, but not from the NR-BHF calculation. This study highlights the relativistic mechanism in explaining the saturation properties of nuclear matter. The remaining discrepancy in reproducing empirical saturation properties in the RBHF calculation using the OBEPΛs signals the necessity of including three-nucleon correlations or genuine three-nucleon forces.

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Two-nucleon emission in neutrino and electron scattering from nuclei: The modified convolution approximation

et al. 2018

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The theoretical formalism of inclusive lepton-nucleus scattering in the twonucleon emission channel is discussed in the context of a simplified approach, the modified convolution approximation. This allows one to write the 2p2h responses of the relativistic Fermi gas as a folding integral of two 1p1h responses with the energies and momenta transferred to each nucleon. The idea behind this method is to introduce different average momenta for the two initial nucleons in the matrix elements of the two-body current, with the innovation that they depend on the transferred energies and momenta. This method treats exactly the two-body phase space kinematics, and reduces the formulae of the response functions from seven-dimensional integrals over momenta to much simpler three-dimensional ones. The applicability of the method is checked by comparing with the full results within a model of electroweak meson-exchange currents. The predictions are accurate enough, especially in the low-energy threshold region where the average momentum approximation works the best.

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Extracting the mass dependence and quantum numbers of short-range correlated pairs fromA(e,e′p)andA(e,e

Cited by 44 publications

References 36 publications

Final-state interactions in two-nucleon knockout reactions

Final-state interactions in two-nucleon knockout reactions

Nucleon momentum distribution of 56Fe from the axially deformed relativistic mean-field model with nucleon-nucleon correlations

Two-nucleon emission in neutrino and electron scattering from nuclei: The modified convolution approximation

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