[Theory-seminars] Theory seminar tomorrow

[Raza Sufian]

Dear All,

Here is a reminder for the theory seminar tomorrow:

Bluejeans connection: https://bluejeans.com/610445877


Theory seminar:
Wednesday, Dec 11, 1:00PM, Room F224-225
Michael Paolone (Temple University), "Coulomb Corrections and the Coulomb Sum Rule at JLab"

Abstract:
In order to determine the Coulomb sum in nuclei, a precision measurement of inclusive electron scattering cross sections in the quasi-elastic region was performed at Jefferson Lab. Incident electrons with energies ranging from 0.4 GeV to 4 GeV scattered from 4He,12C, 56Fe and 208Pb nuclei at four scattering angles (15, 60, 90,120 deg) and scattered energies ranging from 0.1 GeV to 4 GeV. The Rosenbluth separation method is used to extract the transverse and longitudinal response functions at three-momentum transfers in the range 0.55 GeV/c < q < 1.0 GeV/c.  The coulomb distortion of the incident and scattered electron wave-functions due to the electro-static potential of the nucleus is typically accounted for in experimental analysis with an effective momentum approximation (EMA).  The documented effectiveness and limitations of this approximation for specific nuclei and kinematics will be discussed.  For heavier nuclei, the need for alternative corrections specific to the kinematics of data collected at Jefferson Lab will also be discussed.


Thank you.
-Carlota, Miguel, Raza



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