[Theory-seminars] Remote theory seminar next week

[Astrid Hiller Blin]

Dear all,

Here is a reminder of next week's theory seminar:

*Theory seminar*
Monday August 24, 1:00 PM

Simone Rodini (University of Pavia) will talk about "Proton mass
decomposition: a fresh look".

Abstract:

A number of different decompositions for the proton mass have been proposed
in the literature. All of them can be expressed as matrix elements of
operators related to the Energy-Momentum Tensor (EMT) in quantum
chromodynamics. Exploiting the simpler case of an electron in QED, we
review the formalism of the renormalization for the separate lepton and
gauge-field operators that contribute to the total EMT. Once we have
established the formalism, we review and revisit the different
decompositions by paying special attention to the connection between the
different sum rules. We discuss the scheme dependence of the proton-mass
decompositions, and we present numerical results for the various terms up
to the third order in the strong coupling. We also elaborate on a possible
connection between the trace anomaly and the time component of the EMT,
that is realized when forward matrix elements are considered.


Bluejeans connection: https://bluejeans.com/801786278
<https://urldefense.proofpoint.com/v2/url?u=https-3A__bluejeans.com_801786278&d=DwMFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=AIMSQQ81YDyrZuJNGks2qw&m=aT_3J5jjiFmHtFXffqbfPqEY_A73NEWw2ebyFyL_eCA&s=YNm3qgT5e8sJgKfZ9vFA_w--imuXwmeAjg0C4AslLwg&e=>

Best wishes,
Astrid, Christos, Filippo, Miguel
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