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Speaker |
Maddaloni, Pasquale |
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Coauthors |
Di Sarno, Valentina; Aiello, Roberto; Santamaria, Luigi; Tasseva, Jordanka; De Rosa, Maurizio; Ricciardi, Iolanda; De Natale, Paolo; Mangano, Gianpiero; Calonico, Davide; Levi, Filippo; Borri, Simone; Santambrogio, Gabriele; Insero, Giacomo; Verde, Maurizio; D’Ambrosio, Davide |
| Talk Title |
Search For New Physics At The Electron-Volt Energy Scale By Precision Spectroscopy Of Cold Molecules |
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Abstract |
We present the progress of two experiments that, based on infrared precision laser spectroscopy of either a buffer-gas-cooled or a Stark-decelerated molecular beam, will produce new sets of absolute, ultra-accurate frequency measurements of ro-vibrational lines relative to atomic clock transitions. The ultimate goal is to constrain, over a-few-year timescale, the fractional temporal variation of the proton-to-electron mass ratio at a level of 10E-15/yr. When applied to calculable molecular systems, our approach will furthermore provide a refined grid of line-center frequencies that, combined with sophisticated quantum electrodynamics (QED) computations, might unveil new physical phenomena beyond the Standard Model, including additional long-range hadronic interactions. |
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