Covariant form factor for spin-1 particles

by Prof. J. P. B. C. de Melo (Universidade Cruzeiro do Sul and Universidade Cidade de S˜ao Paulo)

Wednesday Dec 4, 2024, 10:00 AM → 12:00 PM Asia/Shanghai

Abstract:
The spin-1 particles is an admirable two quarks bound state system to \linebreak understand electromagnetic properties from hadronic states. These systems are generally relativistic, and therefore, need an approach using quantum field theory. In the present work, we will use both the quantum field theory at the \linebreak instant form, as well, quantum field theory on the light-front (LFQFT). 

In general, it is used to calculate the electromagnetic properties of spin-1 vector particles in the LFQFT formalism, with the plus component of the electromagnetic current. In the present work, we used, in addition to  the plus component of the electromagnetic current; the minus component   of the current, and we use that  components o the current,  to extract the covariant form factors; showing that to have an equivalence between these we need to add non-valence terms to the electromagnetic current, in order to restore the covariance, and obtain exactly the same results when using the instant form  quantum field theory.

 

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Zoom ID:89927008028
Password: 624964

Meeting link
https://us02web.zoom.us/j/89927008028?pwd=a9kh3ZHdcOrDPDedy2KN4q6ZEoogwA.1

huizhouv24v6-de Melo.pdf