[Theory-seminars] Cake seminar today

[satoshi at jlab.org]

Dear Colleagues,

We have cake seminar today, 2pm at L102.

Satoshi


Spearker Alberto Accardi
Title: "Constraining d/u at x=1 with data at x>1"

Abstract:

Recently the ratio of neutron to proton structure functions F2(n)/F2(p)
was extracted from a phenomenological correlation between the strength of
the nuclear EMC effect and inclusive electron–nucleus cross section ratios
at x > 1. Within conventional models of nuclear smearing, this “in-medium
correction” (IMC) extraction constrains the size of nuclear effects in the
deuteron structure functions, from which the neutron structure function F2
is usually extracted. Using the recent CTEQ-JLab global PDF fits, the IMC
data can then be used to determine the resulting proton d/u quark
distribution ratio, extrapolated to x = 1 (value to be disclosed during
the talk). In the spirit of a cake seminar, I will keep the main
presentation short and will ask you, the audience, for feedback prior to
finalizing and submitting the presented results.