Systematic-free limit on new light scalar bosons via isotope-shift spectroscopy in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mrow> <mml:mi>Ca</mml:mi> </mml:mrow> <mml:mo>+</mml:mo> </mml:msup> </mml:math>
Timothy Chang, Bless Bah Awazi, J. C. Berengut, Elina Fuchs, S. Charles Doret
Abstract
The authors utilize laser spectroscopy to perform precise measurements on multiple transitions in Ca+ and combine these measurements to form a King Plot which is consistent with linearity at the ppb level. Such linearity sets new isotope-shift-based limits on beyond-Standard-Model force carriers, free of systematics from Standard Model nuclear theory, and improves on prior work by a factor of three.
Topics & Concepts
PhysicsSpectroscopyScalar (mathematics)Limit (mathematics)MathematicsQuantum mechanicsMathematical analysisGeometryAtomic and Subatomic Physics ResearchCold Atom Physics and Bose-Einstein CondensatesAdvanced Frequency and Time Standards