[Theory-seminars] Cake seminar this week

[satoshi at jlab.org]

Dear Colleagues,

We will have a cake seminar this week, Oct 5, 2pm at L102.

Speaker : 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.


Cake sponser : Wally Melnitchouk


Cheers, Satoshi