7 papers
High Precision Fundamental Physics Experiments at JLab with Spin-transparent Storage Rings of Low-energy Polarized Electron Beams
Vladimir Khachatryan, Riad Suleiman, Alberto Accardi +27
A breakthrough in fundamental physics experiments measuring particle spin precession may happen if spin-transparent storage rings become adopted tools for such experiments. We pres…
Crystallography, Lorentz violation, and the Standard-Model Extension
Marco Schreck, Rogeres A. da Silva Magalhães
The motivation behind the present work is to adopt methodology from field theory and high-energy physics to crystallography. In particular, we establish a relationship between the…
Alternative classical Lagrangians for the Standard-Model Extension
João A. A. S. Reis, Marco Schreck, Ronaldo Thibes
The current paper introduces classical, relativistic Lagrangians for point-particle analogs to the field theory description of the Standard-Model Extension (SME) for Lorentz violat…
Vacuum Cherenkov Radiation for Nonminimal Isotropic Lorentz Violation
Albert Yu. Petrov, Marco Schreck, Alexandre R. Vieira
In this work, we study the effects of vacuum Cherenkov radiation caused by nonminimal dimension-5 Lorentz-violating (LV) operators in the fermion sector. Explicitly, we focus on tw…
Lorentz violation and momentum-space geometric phases
Alan Kostelecky, Ralf Lehnert, Marco Schreck +1
Geometric phases can manifest when a relativistic quantum particle moves cyclically along a loop in parameter space. The phase can be affected by the presence of a background field…
Nonperturbative Lorentz Violation and Field Quantization
Alan Kostelecky, Ralf Lehnert, Marco Schreck +1
Regimes of Lorentz-violating effective field theories are studied in which departures from Lorentz symmetry are nonperturbative. Within a free toy theory exhibiting Lorentz breakdo…