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Background: The density of the nucleus has been important in explaining the nuclear dependence of the quark distributions, also known as the EMC effect, as well as the presence of highmomentum nucleons arising from short-range correlations…

核实验 · 物理学 2013-05-30 John Arrington , Aji Daniel , Donal Day , Nadia Fomin , Dave Gaskell , Patricia Solvignon

The relation between the nuclear EMC effect and the nucleon-nucleon short-range correlation is a hot topic in high-energy nuclear physics, ever since a peculiar linear correlation between these two phenomena discovered. In this paper, the…

核理论 · 物理学 2024-05-28 Na-Na Ma , Tao-Feng Wang , Rong Wang

This article reviews our current understanding of how the internal quark structure of a nucleon bound in nuclei differs from that of a free nucleon. We focus on the interpretation of measurements of the EMC effect for valence quarks, a…

核实验 · 物理学 2017-12-06 O. Hen , G. A. Miller , E. Piasetzky , L. B. Weinstein

We overview the progress made in studies of EMC and short range correlation (SRC) effects with the special emphasis given to the recent observation of the correlation between the slope of the EMC ratio at Bjorken x<1 and the scale factor of…

核理论 · 物理学 2015-06-11 Misak M Sargsian

Electron scattering measurements from high-momentum nucleons in nuclei at SLAC and Jefferson Lab (JLab) have shown that these nucleons are generally associated with two-nucleon short-range correlations (2N-SRCs). These SRCs are formed when…

核实验 · 物理学 2023-09-11 Nadia Fomin , John Arrington , Shujie Li

The recent x>1 (e,e') and correlation experiments at momentum transfer Q^2 \ge 2 GeV^2 confirm presence of short-range correlations (SRC) in nuclei mostly build of nucleons. Recently we evaluated in a model independent way the dominant…

核理论 · 物理学 2015-05-30 Mark Strikman

The deep inelastic scattering cross section for scattering from bound nucleons differs from that of free nucleons.This phenomena, first discovered 30 years ago, is known as the EMC effect and is still not fully understood. Recent analysis…

核实验 · 物理学 2015-06-11 E. Piasetzky , O. Hen , L. B. Weinstein

An approximate method to quantify the mass dependence of the number of two-nucleon (2N) short-range correlations (SRC) in nuclei is suggested. The proposed method relies on the concept of the "local nuclear character" of the SRC. We…

核理论 · 物理学 2012-10-24 Maarten Vanhalst , Jan Ryckebusch , Wim Cosyn

Valence-shell nucleon knock-out experiments, such as 12C(e,e'p)11B, measure less strength then is predicted by independent particle shell model calculations. The theoretical solution to this problem is to include the correlations between…

核实验 · 物理学 2015-05-20 Douglas W. Higinbotham

Atomic nuclei are held together by the strong nuclear force acting between protons and neutrons (nucleons). While the long range, averaged part of this force is well described by the nuclear shell model, the short-range and tensor…

核实验 · 物理学 2026-05-14 Or Hen , Holly Szumila-Vance , Lawrence Weinstein

Recently published measurements of the two nucleon short range correlation ($NN$-SRC) scaling factors, $a_2(A/d)$, strengthen the previously observed correlation between the magnitude of the EMC effect measured in electron deep inelastic…

核实验 · 物理学 2015-06-04 O. Hen , E. Piasetzky , L. B. Weinstein

The observed correlation between the EMC effect and the contribution of short-range correlations (SRCs) in nuclei suggests that the modification of the quark distributions of bound protons and neutrons might occur within SRCs. This raises…

核实验 · 物理学 2019-07-31 J. Arrington , N. Fomin

By analyzing recent microscopic many-body calculations of few-nucleon systems and complex nuclei performed by different groups in terms of realistic nucleon-nucleon (NN) interactions, it is shown that NN short-range correlations (SRCs) have…

Quantitative information on the tensor force induced isospin-dependence of short-range nucleon-nucleon correlation (SRC) extracted from recent J-Lab experiments was used in constraining the high-momentum tails of single nucleon momentum…

核理论 · 物理学 2011-04-13 Chang Xu , Bao-An Li

We explore the EMC effect of gluons through heavy quark production in deep inelastic scattering (DIS) and the nucleon-nucleon short range correlation (SRC) from sub-threshold photoproduction of the $J/\psi$. Applying an effective field…

高能物理 - 唯象学 · 物理学 2025-01-07 Wei Wang , Ji Xu , Xing-Hua Yang , Shuai Zhao

In this paper, we examine the hypothesis that the nuclear EMC effect comes merely from the N-N SRC pairs inside the nucleus and that the properties of N-N SRC pair are universal among the various nuclei, using the conventional $x$-rescaling…

核理论 · 物理学 2023-02-24 Rong Wang , Na-Na Ma , Tao-Feng Wang

Nucleon short-range correlations (SRCs) and their high-momentum tails (HMTs) encode key short-range dynamics in nuclei and dense matter. This review provides a concise overview of SRC features relevant to the Equation of State (EOS) of…

核理论 · 物理学 2026-03-20 Bao-Jun Cai , Bao-An Li , Yu-Gang Ma

Weinstein, et. al [1] [PRL 106, 052301 (2011)] and Hen, et. al [2] [PRC 85, 047301 (2012)] observed a correlation between the EMC effect and the amount of short range correlated (SRC) pairs in nuclei which implies that quark distributions…

The EMC effect in deuterium and helium-3 is studied using a convolution formalism that allows isolating the impact of high-momentum nucleons in short-ranged correlated (SRC) pairs. We assume that the modification of the structure function…

The relative contributions to the valence nuclear EMC effect in the deuteron arising from off-shell effects and Fermi motion are examined in models which include nuclear binding and off-shell effects. Contrary to expectations, the effect of…

高能物理 - 唯象学 · 物理学 2021-01-04 X. G. Wang , A. W. Thomas , W. Melnitchouk
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