[Jlab-seminars] Theory Center Seminar

[Mary Fox]

Theory Center Seminar
Wed., Feb. 17, 2016
2:00 p.m. (coffee at 1:45 p.m.)
CEBAF Center, Room L102

Martha Constantinou
Cyprus University

*Overview of Hadron Structure from Lattice QCD*

Understanding hadron structure from first principles is considered a 
milestone of hadron physics
and numerous experiments have been devoted to its study, starting with 
the measurements of the
electromagnetic form factors more than 50 years ago. Lattice QCD (LQCD) 
is a powerful approach for
the ab inition calculation of hadron observables. Emerging results form 
LQCD are providing input to
phenomenology, as well as to Physics beyond the Standard Model. This is 
due to the impressive
progress in the simulation of LQCD mainly due to improvements in the 
algorithms, development
of new techniques and increase in computational power that have enabled 
simulations to be carried
out at parameters very close to their physical values. In this talk we 
will review results obtained with
simulations at or near to the physical value of the pion mass, such as 
the nucleon axial charge and the
first moments parton distributions, for both the valence and sea quark 
contributions, and discuss their
implications on the spin content of the nucleon. Selected results on the 
electromagnetic form factors
and radii, the quark content of the nucleon and on the neutron electric 
dipole moment are also discussed.
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