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<p>Theory Center Seminar<br>
Monday, January 29, 2018<br>
1:00 p.m. (coffee at 12:45 p.m.)<br>
CEBAF Center, Room L102 <br>
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<span color="#0f61c8" data-mce-style="color: #0f61c8;" style="color:
#0f61c8;"> </span>Emanuele Nocera <br>
Edinburgh University<br>
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</span><b>Fragmentation Functions of Light Charged Hadrons</b><br>
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<div>I discuss the determination of the collinear fragmentation
functions of light charged hadrons <br>
from a wide set of single-inclusive electron-positron annihilation
cross section measurements.<br>
I focus on the recent effort made by the NNPDF collaboration,
using a methodology based on <br>
Monte Carlo sampling for the representation of data
uncertaintiesand neural networks for parton<br>
parametrisation. I discuss the quality of the NNPDF determination,
including its stability upon <br>
inclusion of higher-order corrections, and some of its
implications in the investigation of the spin<br>
structure of the nucleon and in the description of the hadron
spectra measured at colliders.</div>
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