94 citations · 458 across the 17 of their papers we have counts for
17 papers · 1 filter
Short-range expansion for the quantum many-body problem
Ronen Weiss, Diego Lonardoni, Stefano Gandolfi
In this work we derive a systematic short-range expansion of the many-body wave function. At leading order, the wave function is factorized to a zero-energy -wave correlated pai…
The asymptotic behaviour of the many-body coupled cluster amplitudes
Saar Beck, Ronen Weiss, Nir Barnea
We analyze the asymptotic behaviour of the coupled cluster many-body wave-function in the limit of highly excited two- and three-particles states. We find that in this limit the di…
Nuclear three-body short-range correlations in coordinate space
Ronen Weiss, Stefano Gandolfi
We study the effects of three-nucleon short-range correlations on nuclear coordinate-space densities. For this purpose, novel three-body densities are calculated for ground state n…
On nuclear short-range correlations and the zero-energy eigenstates of the Schrodinger equation
Saar Beck, Ronen Weiss, Nir Barnea
We present a systematic analysis of the nuclear 2 and 3-body short range correlations, and their relations to the zero-energy eigenstates of the Schrodinger equation. To this end w…
Isospin-symmetry implications for nuclear two-body distributions and short-range correlations
R. Weiss, A. Lovato, R. B. Wiringa
We study the implications of isospin symmetry in nuclear systems on two-body distributions and derive relations between different densities or momentum distributions of a given nuc…
Neutrinoless double-beta decay: combining quantum Monte Carlo and the nuclear shell model with the generalized contact formalism
Ronen Weiss, Pablo Soriano, Alessandro Lovato +2
We devise a framework based on the generalized contact formalism that combines the nuclear shell model and quantum Monte Carlo methods and compute the neutrinoless double-beta deca…
Generalized Contact Formalism Analysis of the He Reaction
J. R. Pybus, I. Korover, R. Weiss +7
Measurements of short-range correlations in exclusive He reactions are analyzed using the Generalized Contact Formalism (GCF). We consider both instant-form and light…
Short-range correlations and the charge density
Ronen Weiss, Axel Schmidt, Gerald A. Miller +1
Sophisticated high-energy and large momentum-transfer scattering experiments combined with ab-initio calculations can reveal the short-distance behavior of nucleon pairs in nuclei.…
Energy and momentum dependence of nuclear short-range correlations - Spectral function, exclusive scattering experiments and the contact formalism
Ronen Weiss, Igor Korover, Eliezer Piasetzky +2
Results of electron-induced one- and two-nucleon hard knockout reactions, and , in kinematics sensitive to nuclear short-range correlations, are studied using…
The Nuclear Contact Formalism - the Deuteron Channel
Ronen Weiss, Nir Barnea
The contact formalism, devised to elucidate the important role of short-range correlations, was recently generalized for systems with coupled channels, such as the deuteron channel…
Short range correlations and the isospin dependence of nuclear correlation functions
Reynier Cruz-Torres, Axel Schmidt, Gerald A. Miller +5
Pair densities and associated correlation functions provide a critical tool for introducing many-body correlations into a wide-range of effective theories. Ab initio calculations s…
Contact formalism for coupled channels
Ronen Weiss, Nir Barnea
The contact formalism, a useful tool for analyzing short-range correlations, is generalized here for systems with coupled channels, such as in nuclear physics. The relevant asympto…
Short range correlations - The important role of few-body dynamics in many-body systems
Ronen Weiss, Ehoud Pazy, Nir Barnea
For many-body systems with short range interaction a series of relations were derived connecting many properties of the system to the dynamics of a closely packed few-body subsyste…
The nuclear contacts and short range correlations in nuclei
R. Weiss, R. Cruz-Torres, N. Barnea +2
Atomic nuclei are complex strongly interacting systems and their exact theoretical description is a long-standing challenge. An approximate description of nuclei can be achieved by…
The Generalized Nuclear Contact and its Application to the Photoabsorption Cross-Section
Ronen Weiss, Betzalel Bazak, Nir Barnea
Using the zero-range model, it was demonstrated recently that Levinger's quasi-deuteron model can be utilized to extract the nuclear neutron-proton contact. Going beyond the zero-r…
Generalized nuclear contacts and the nucleon's momentum distributions
Ronen Weiss, Betzalel Bazak, Nir Barnea
The general nuclear contact matrices are defined, taking into consideration all partial waves and finite-range interactions, extending Tan's work for the zero range model. The prop…
Experimental evaluation of the nuclear neutron-proton contact
Ronen Weiss, Betzalel Bazak, Nir Barnea
The nuclear neutron-proton contact is introduced, generalizing Tan's work, and evaluated from medium energy nuclear photodisintegration experiments. To this end we reformulate the…