EMC effect, short-range correlations in nuclei and neutron stars

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The recent x > 1 (e,e') and correlation experiments at momentum transfer Q 2 ≥ 2GeV 2 confirm presence of shortrange correlations (SRC) in nuclei mostly build of nucleons. Recently we evaluated in a model independent way the dominant photon contribution to the nuclear structure. Taking into account this effect and using definition of x consistent with the exact kinematics of eA scattering (with exact sum rules) results in the significant reduction of R A(x,Q 2)=F 2A(x,Q 2)/F 2N(x,Q 2) ratio which explains ∼50 of the EMC effect for x ≤ 0.55 where Fermi motion effects are small. The remaining part of the EMC effect at x ≥ 0.5 is consistent with dominance of the contribution of SRCs. Implications for extraction of the F 2n/F 2p ratio are discussed. Smallness of the non-nucleonic degrees of freedom in nuclei matches well the recent observation of a two-solar mass neutron star, and while large pn SRCs lead to enhancement of the neutron star cooling rate for kT ≤ 0.01 MeV.

Original languageEnglish (US)
Title of host publication19th Particles and Nuclei International Conference, PANIC11
Pages402-406
Number of pages5
DOIs
StatePublished - May 10 2012
Event19th Particles and Nuclei International Conference, PANIC11 - Cambridge, MA, United States
Duration: Jul 24 2011Jul 29 2011

Publication series

NameAIP Conference Proceedings
Volume1441
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other19th Particles and Nuclei International Conference, PANIC11
CountryUnited States
CityCambridge, MA
Period7/24/117/29/11

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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  • Cite this

    Strikman, M. (2012). EMC effect, short-range correlations in nuclei and neutron stars. In 19th Particles and Nuclei International Conference, PANIC11 (pp. 402-406). (AIP Conference Proceedings; Vol. 1441). https://doi.org/10.1063/1.3700568