[Theory-seminars] Theory seminar tomorrow [L102, 1pm]

[Miguel Albaladejo]

Dear colleagues,

this is a reminder on tomorrow's theory seminar.

Best regards,
Carlota, Raza, Miguel

Date and time: Monday, February 17, 1:00PM
Room: L102
Speaker: Matthias Burkardt (New Mexico State University)
Title: "The ultimate free lunch: the light-front vacuum"

Abstract:
Light-front (LF) wave functions play an important role in the physical interpretation of experiments probing hadron structure. For example, generalized parton distributions that are probed in deeply virtual Compton scattering (DVCS) experiments, and ploy a central role in femtography, have a particularly simple representation in terms of overlap integrals involving LF wave functions. LF wave functions in impact parameter space can be used to easily construct transverse images of the nucleon. Transverse correlations and forces are important for the interpretation of single-spin asymmetries in SIDIS experiment.
In principle, LF wave functions are obtainable as eigenstates of a LF Hamiltonian. LF Hamiltonians have a trivial ground state, which seems is a great advantage as no computer time is wasted calculating the structure of the vacuum when one is interested in hadron structure. However, there are many arguments that support the idea that the QCD vacuum has a nontrivial structure. Using both perturbative and non-perturbative examples, I will explain how a trivial LF vacuum can be consistent with nontrivial vacuum structure.

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

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