| Issue |
EPL
Volume 144, Number 1, October 2023
|
|
|---|---|---|
| Article Number | 14001 | |
| Number of page(s) | 6 | |
| Section | Nuclear and plasma physics, particles and fields | |
| DOI | https://doi.org/10.1209/0295-5075/ad0177 | |
| Published online | 26 October 2023 | |
A unifying framework for BRST and BRST-related symmetries
1 Department of Physics, Banaras Hindu University - Varanasi, 221005, India
2 Veer Kunwar Singh University - Ara, Bhabua, 821101, India
3 Theoretical Physics Department, CERN - 1211 Geneva 23, Switzerland
(a) E-mail: thibes@uesb.edu.br (corresponding author)
Received: 13 July 2023
Accepted: 9 October 2023
We propose a general framework to study BRST-related transformations. We investigate different forms of BRST and BRST-related symmetries, realized within a prototypical first-class system, including ordinary BRST, anti-BRST, dual-BRST, anti-dual-BRST and additional sets of new BRST-related symmetries. We identify a precise 
discrete group of symmetries of the ghost sector, responsible for connecting the various forms of BRST-related transformations. Their distinct roles in different Hamiltonian and Lagrangian approaches are clarified. As a unifying framework, we use a gauge invariant prototypical first-class system encompassing an extensive class of physical models.
© 2023 The author(s)
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