Nuclear EMC effect in the valence region

Not scheduled
20m
Brooklyn, NY

Brooklyn, NY

333 Adams Street, Brooklyn, New York 11201, USA
Poster Poster Session Poster Session

Speaker

Sergey Kulagin (INR RAS, Moscow, Russia)

Description

We discuss nuclear corrections to the DIS structure functions focusing at the region of large Bjorken $x$. We present a detailed comparison with recent measurements of nuclear ratios at JLab: BONUS experiment [1] (deuterium), MARATHON experiment [2] ($^3$He and $^3$H targets) and Hall C [3] and CLAS collaboration [4] data. We show that the data at large $x$ can be well described by a combined effect of nuclear momentum distribution, binding and off-shell correction [5,6]. We also discuss the implication of this approach to extract the ratio $F_2$(neutron)$/F_2$(proton) from recent MARATHON measurement [2].

References

[1] K.A. Griffioen et al, Measurement of the EMC Effect in the Deuteron, Phys.Rev. C92 (2015) 015211.
[2] G.G. Petratos (spokesperson), JLab Experiment E12-10-103 [MARATHON].
[3] J. Seely et al, New measurements of the EMC effect in very light nuclei, Phys.Rev.Lett. 103 (2009) 202301.
[4] B. Schmookler et al, Modified structure of protons and neutrons in correlated pairs, Nature 566 (2019) 354.
[5] S.A. Kulagin and R. Petti, Global study of nuclear structure functions, Nucl.Phys. A765 (2006) 126.
[6] S.A. Kulagin and R. Petti, Structure functions for light nuclei, Phys.Rev. C82 (2010) 054614.

Primary authors

Sergey Kulagin (INR RAS, Moscow, Russia) Roberto Petti (USC, Columbia, SC)

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