[Theory-seminars] JSA/HUGS Fellowships Seminars - Wednesday 2pm, L102

[Alessandro Pilloni]

Dear all, 
you are invited to the special seminars of the winners of the JSA/HUGS Fellowship,
who are visiting the Theory Center until Saturday.


JSA/HUGS Fellowships Seminars
Wed., June 22, 2016
2:00 p.m. (coffee at 1:45 p.m.)
CEBAF Center, Room L102


Rajesh Sangem
Indian Institute of Technology 
Bombay, India

Linearly Polarized Gluons in J/\psi and \Upsilon Production

In this talk, I would discuss the effect of linearly polarized gluons on transverse momentum and rapidity 
spectrum of J/psi and Upsilon in unpolarized proton-proton collision. I will start with a brief introduction
to gluon TMDs and quarkonium models. I will show that quarkonium production spectra can be modulated 
due to the presence of linearly polarized gluons inside an unpolarized proton.

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S. Bineta L. Amar
Cheikh Anta Diop University
Dakar, Senegal

Meson Photo-production in GEANT4 for E_gamma = 0.15 - 3 GeV
Theoretical models implemented in the version 9.6.p02 of the Geant4 Monte Carlo simulation toolkit for the 
total and differential cross sections for pion photo-production were validated against experimental data.
This presentation reports on the gamma p -> pi0 p reaction. Two models were studied: the Chiral Invariant 
Phase Space (CHIPS) and Bertini (BERT). The experimental data are from the CEBAF Large Acceptance 
Spectrometer (CLAS detector) of Jefferson Lab,the Scattering Analysis Interactive Dial-in (SAID) and the 
world data (only for sigma_tot). The CHIPS model is the only one that can adequately reproduce the main 
resonances for the reaction channel with a corrective coefficient needed to perform the result.
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