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of 25
pro vyhledávání: '"Vargas, Arnaldo J."'
Autor:
Vargas, Arnaldo J.
A model for the Lorentz- and CPT-violating frequency shift for the antihydrogen $1S$-$2P$ transition in the presence of an external magnetic field is derived. Using the recent measurement of the $1S$-$2P$ transition frequency in antihydrogen by the A
Externí odkaz:
http://arxiv.org/abs/2411.10944
Autor:
Vargas, Arnaldo J.
Publikováno v:
Phys. Rev. D 109, 055001 (2024)
This work presents a model for testing Lorentz and CPT symmetry through sidereal-variation studies of the hyperfine-Zeeman deuterium ground-state transition frequencies. It represents an advancement over previous models by using a well-established de
Externí odkaz:
http://arxiv.org/abs/2401.03272
We present in this work an analysis of Lorentz- and CPT-violating signals at linear boost order in Penning-trap experiments. The theory of quantum electrodynamics with Penning traps is revisited and the dominant shifts in the cyclotron and anomaly fr
Externí odkaz:
http://arxiv.org/abs/2308.14201
Autor:
Vargas, Arnaldo J.
This presentation discusses some of the signals for Lorentz violation potentially observable in atomic spectroscopy and clock-comparison experiments. The emphasis of the discussion is on how the angular-momentum quantum numbers of the states involved
Externí odkaz:
http://arxiv.org/abs/2301.06833
Autor:
Kostelecky, Alan, Vargas, Arnaldo J.
Publikováno v:
Phys. Rev. D 98, 036003 (2018)
Clock-comparison experiments are among the sharpest existing tests of Lorentz symmetry in matter. We characterize signals in these experiments arising from modifications to electron or nucleon propagators and involving Lorentz- and CPT-violating oper
Externí odkaz:
http://arxiv.org/abs/1805.04499
Autor:
Vargas, Arnaldo J.
The prospects of studying nonminimal operators for Lorentz violation using spectroscopy experiments with light atoms and muon spin-precession experiments are presented. Possible improvements on bounds on minimal and nonminimal operators for Lorentz v
Externí odkaz:
http://arxiv.org/abs/1611.01870
Autor:
Kostelecky, Alan, Vargas, Arnaldo J.
Publikováno v:
Phys. Rev. D 92, 056002 (2015)
The potential of precision spectroscopy as a tool in systematic searches for effects of Lorentz and CPT violation is investigated. Systems considered include hydrogen, antihydrogen, deuterium, positronium, and hydrogen molecules and molecular ions. P
Externí odkaz:
http://arxiv.org/abs/1506.01706
Publikováno v:
Phys.Rev.D90:076009,2014
The prospects are explored for testing Lorentz and CPT symmetry in the muon sector via the spectroscopy of muonium and various muonic atoms, and via measurements of the anomalous magnetic moments of the muon and antimuon. The effects of Lorentz-viola
Externí odkaz:
http://arxiv.org/abs/1407.7748
Autor:
Vargas, Arnaldo J.
Publikováno v:
Philosophical Transactions: Mathematical, Physical and Engineering Sciences, 2018 Mar . 376(2116), 1-9.
Externí odkaz:
https://www.jstor.org/stable/44678763
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