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Full-Text Articles in Physics
Bounding Lorentz Violation At Particle Colliders By Tracking The Motion Of Charged Particles, Brett David Altschul
Bounding Lorentz Violation At Particle Colliders By Tracking The Motion Of Charged Particles, Brett David Altschul
Faculty Publications
In the presence of Lorentz violation, the motion of a charged particle in a magnetic field is distorted. By measuring the eccentricities of particles’ elliptical orbits and studying how those eccentricities vary with the absolute orientation of the laboratory, it is possible to constrain the Lorentz-violating cJK parameters. For each observed species, this method can provide constraints on four linear combinations of coefficients for which, in some species, there are presently no two-sided bounds.
Renormalization Of Scalar And Yukawa Field Theories With Lorentz Violation, Alejandro Ferrero, Brett David Altschul
Renormalization Of Scalar And Yukawa Field Theories With Lorentz Violation, Alejandro Ferrero, Brett David Altschul
Faculty Publications
We consider a theory of scalar and spinor fields, interacting through Yukawa and ϕ4 interactions, with Lorentz-violating operators included in the Lagrangian. We compute the leading quantum corrections in this theory. The renormalizability of the theory is explicitly shown up to one-loop order. In the pure scalar sector, the calculations can be generalized to higher orders and to include finite terms, because the theory can be solved in terms of its Lorentz-invariant version.