New Measurements of the EMC Effect in Few-Body Nuclei

Abstract

Measurements of the EMC effect show that the quark distributions in nuclei are not simply the sum of the quark distributions of the constituent nucleons. However, interpretation of the EMC effect is limited by the lack of a reliable baseline calculation of the effects of Fermi motion and nucleon binding. We present preliminary results from JLab experiment E03-103, a precise measurement of the EMC effect in few-body and heavy nuclei. These data emphasize the large-x region, where binding and Fermi motion effects dominate, and thus will provide much better constraints on the effects of binding. These data will also allow for comparisons to calculations for few-body nuclei, where the uncertainty in the nuclear structure is minimized.

Proceedings from talk at the Topical Group on Hadron Physics meeting, Nashville Tennessee, October 22-24, 2006. 9 pages, 6 figures

References in corpus (2)

• Coulomb distortion of relativistic electrons in the nuclear electrostatic field
• Target mass corrections revisited

Cited by in corpus (5)

• Determination of nuclear parton distribution functions and their uncertainties at next-to-leading order
• On the dependence of the wave function of a bound nucleon on its momentum and the EMC effect
• Neutron Structure Functions
• Measurements of $d_2^n$ and $A_1^n$: Probing the neutron spin structure
• Medium Modifications of Hadron Properties and Partonic Processes