Dependence of two-nucleon momentum densities on total pair momentum

Abstract

Two-nucleon momentum distributions are calculated for the ground states of 3He and 4He as a function of the nucleons' relative and total momenta. We use variational Monte Carlo wave functions derived from a realistic Hamiltonian with two- and three-nucleon potentials. The momentum distribution of pp pairs is found to be much smaller than that of pn pairs for values of the relative momentum in the range (300--500) MeV/c and vanishing total momentum. However, as the total momentum increases to 400 MeV/c, the ratio of pp to pn pairs in this relative momentum range grows and approaches the limit 1/2 for 3He and 1/4 for 4He, corresponding to the ratio of pp to pn pairs in these nuclei. This behavior should be easily observable in two-nucleon knock-out processes, such as A(e,e'pN).

arXiv comment3 pages, 3 figures

References in corpus (13)

• An accurate nucleon-nucleon potential with charge-independence breaking
• Quantum Monte Carlo Calculations of $A\le 6$ Nuclei
• Quantum Monte Carlo Calculations of Light Nuclei
• Probing Cold Dense Nuclear Matter
• Evidence for the Strong Dominance of Proton-Neutron Correlations in Nuclei
• Tensor Forces and the Ground-State Structure of Nuclei
• Electromagnetic structure of the deuteron
• Femtometer Toroidal Structures in Nuclei
• Electromagnetic structure of A=2 and 3 nuclei and the nuclear current operator
• Polarization transfer in ${}^4$He$(\vec{e},e^{\prime }\vec{p})$${}^3$H: is the ratio $G_{Ep}/G_{Mp}$ modified in medium ?
• Two-Body Electrodisintegration of ${}^3$He at High Momentum Transfer
• Spin-Momentum Correlations in Quasi-Elastic Electron Scattering from Deuterium
• Tensor Analyzing Powers for Quasi-Elastic Electron Scattering from Deuterium

Cited by in corpus (25)

• Nucleon and nucleon-pair momentum distributions in A <= 12 nuclei
• Hard probes of short-range nucleon-nucleon correlations
• Probing the Repulsive Core of the Nucleon-Nucleon Interaction via the 4He(e,e'pN) Triple-Coincidence Reaction
• Quantum Monte Carlo Methods in Nuclear Physics: Recent Advances
• Universality of short-range nucleon-nucleon correlations
• Neutral weak current two-body contributions in inclusive scattering from ${}^{12}$C
• Progress in understanding short-range structure in nuclei: an experimental perspective
• Computational Nuclear Quantum Many-Body Problem: The UNEDF Project
• Stylized features of single-nucleon momentum distributions
• Short-range correlations in nuclei with similarity renormalization group transformations
• Quantifying short-range correlations in nuclei
• Revealing the short-range structure of the "mirror nuclei" ${}^3$H and ${}^3$He
• Universality of nucleon-nucleon short-range correlations: two-nucleon momentum distributions in few-body systems
• Factorization of exclusive electroinduced two-nucleon knockout
• Single- and two-nucleon momentum distributions for local chiral interactions
• High-momentum components in the ${}^4$He nucleus caused by inter-nucleon correlations
• Towards a high precision calculation for the pion-nucleus scattering lengths
• Novel observation of isospin structure of short-range correlations in calcium isotopes
• Two-nucleon correlation effects in knockout reactions from 12C
• Investigation of the Exclusive ^{3}He(e,e'pn)p Reaction
• Energy dependence of hard bremsstrahlung production in proton-proton collisions in the Delta(1232) region
• Hard bremsstrahlung in the pp -> pp gamma reaction
• Short-Distance Structure of Nuclei
• Short-range correlations and momentum distributions in mirror nuclei 3H and 3He
• Experimental Study of Bremsstrahlung Gamma Ray Emission and Short-Range Correlations in ${}^{124}$Sn+${}^{124}$Sn Collisions at 25 MeV/u