Tests of Lorentz symmetry using antihydrogen
نویسنده
چکیده
Signals of CPT and Lorentz violation are possible in the context of spectroscopy using hydrogen and antihydrogen. We apply the StandardModel Extension, a broad framework for Lorentz breaking in physics, to various transitions in the hydrogen and antihydrogen spectra. The results show an unsuppressed effect in the transition between the upper two hyperfine sublevels of the ground state of these systems. We also discuss related tests in Penning traps, and recent work on Lorentz violation in curved spacetime.
منابع مشابه
Investigating Lorentz and CPT Symmetry with Antihydrogen
This talk discusses theoretical aspects of tests of CPT and Lorentz Symmetry that will in principle be possible with trapped antihydrogen. The framework is the standard-model extension, which admits minuscule violations of CPT and Lorentz symmetry in a general manner without giving up other features of the standard model of particle physics. Spectroscopic transitions in hydrogen and antihydroge...
متن کاملHydrogen and Antihydrogen Spectroscopy for Studies of CPT and Lorentz Symmetry
A theoretical study of possible signals for CPT and Lorentz violation arising in hydrogen and antihydrogen spectroscopy is described. The analysis uses a CPTand Lorentz-violating extension of quantum electrodynamics, obtained from a general Lorentz-violating extension of the minimal standard model with both CPT-even and CPT-odd terms. Certain 1S-2S transitions and hyperfine Zeeman lines exhibit...
متن کاملar X iv : h ep - p h / 05 11 26 2 v 1 22 N ov 2 00 5 Tests of Lorentz Symmetry with Penning Traps and Antihydrogen
Possibilities for testing Lorentz symmetry using precision experiments with antiprotons in Penning traps and with antihydrogen spectroscopy are reviewed. Estimates of bounds on relevant coefficients for Lorentz violation in the Standard-Model Extension (SME) are considered. THE STANDARD-MODEL EXTENSION Einstein’s General Relativity and the Standard Model of particle physics provide an excellent...
متن کاملCpt and Lorentz Symmetry in Hydrogen and Antihydrogen A
Possibilities for observing signals of CPT and Lorentz violation in the spectroscopy of hydrogen and antihydrogen are considered. We show that transitions between the c and d hyperfine sublevels in the 1S state can exhibit theoretically detectable effects that would be unsuppressed by powers of the fine-structure constant. This transition may therefore offer some advantages over 1S-2S two-photo...
متن کاملCpt and Lorentz Violation in Neutral-meson Oscillations
Local relativistic quantum field theories, including the standard model of particle physics, are known to be invariant under Lorentz and CPT transformations. This symmetry is consistent with the results of numerous sensitive laboratory tests. Although no definitive violation has been discovered to date, there are many reasons to undertake careful theoretical studies of possible mechanisms and d...
متن کامل