Short-range correlations and the nuclear EMC effect in deuterium and helium-3

被引：7

作者：

Segarra, E. P. ^{[1
]}

Pybus, J. R. ^{[1
]}

Hauenstein, F. ^{[1
,2
]}

Higinbotham, D. W. ^{[3
]}

Miller, G. A. ^{[4
]}

Piasetzky, E. ^{[5
]}

Schmidt, A. ^{[6
]}

Strikman, M. ^{[7
]}

Weinstein, L. B. ^{[2
]}

Hen, O. ^{[1
]}

机构：

[1] MIT, Dept Phys, Cambridge, MA 02139 USA

[2] Old Dominion Univ, Dept Phys, Norfolk, VA 23529 USA

[3] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA

[4] Univ Washington, Dept Phys, Seattle, WA 98195 USA

[5] Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel

[6] George Washington Univ, Dept Phys, Washington, DC 20052 USA

[7] Penn State Univ, Dept Phys, 104 Davey Lab, University Pk, PA 16802 USA

来源：

PHYSICAL REVIEW RESEARCH | 2021年 / 3卷 / 02期

关键词：

NEUTRON STRUCTURE-FUNCTION; DEEP-INELASTIC SCATTERING; SPECTRAL-FUNCTION; A-DEPENDENCE; HADRONS;

D O I：

10.1103/PhysRevResearch.3.023240

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 of bound nucleons is given by a universal (i.e., nucleus independent) function of their virtuality, and find that the effect of such modifications is dominated by nucleons in SRC pairs. This SRC-dominance of nucleon modifications is observed despite the fact that the bulk of the nuclear inelastic scattering cross-section comes from interacting with low-momentum nucleons. These conclusions are found to be robust to model details including nucleon modification function parametrization, free nucleon structure function, and treatment of nucleon motion effects. While existing data cannot discriminate between such model details, we present predictions for measured, but not yet published, tritium EMC effect and tagged nucleon structure functions in deuterium that are sensitive to the neutron structure functions and bound nucleon modification functions.

引用

页数：19