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Электронный каталог: Alighanbari, S. - High-Accuracy Laser Spetroscopy of H*+&sub(2) and the Proton-Electron Mass Ratio
Alighanbari, S. - High-Accuracy Laser Spetroscopy of H*+&sub(2) and the Proton-Electron Mass Ratio
Статья
Автор: Alighanbari, S.
Nature: High-Accuracy Laser Spetroscopy of H*+&sub(2) and the Proton-Electron Mass Ratio
б.г.
ISBN отсутствует
Автор: Alighanbari, S.
Nature: High-Accuracy Laser Spetroscopy of H*+&sub(2) and the Proton-Electron Mass Ratio
б.г.
ISBN отсутствует
На полку
Статья
Alighanbari, S.
High-Accuracy Laser Spetroscopy of H*+&sub(2) and the Proton-Electron Mass Ratio / S.Alighanbari, V.I.Korobov, [a.o.]. – Text : electronic // Nature. – 2025. – Vol. 644, No. 8075. – P. 69-75. – URL: https://doi.org/10.1038/s41586-025-09306-2. – Bibliogr.: 52.
The molecular hydrogen ions (MHI) are three-body systems suitable for advancing our knowledge in several domains: fundamental constants, tests of quantum physics, search for new interparticle forces, tests of the weak equivalence principle1 and, once the anti-molecule p^-P^-e*+ becomes available, new tests of charge–parity–time-reversal invariance and local position invariance1,2,3. To achieve these goals, high-accuracy laser spectroscopy of several isotopologues, in particular H*+&sub(2) , is required4. Here we present a Doppler-free laser spectroscopy of a rovibrational transition, achieving line resolutions as large as 2.2 × 10*1*3. We accurately determine the transition frequency with 8 × 10&sup(−12) fractional uncertainty. We also determine the spin–rotation coupling coefficient with 0.1 kHz uncertainty and its value is consistent with the state-of-the-art theory prediction5. The combination of our theoretical and experimental H*+&sub(2) data allows us to deduce a new value for the proton-electron mass ratio m&sub(p)/m&sub(e). It is in agreement with the value obtained from mass spectrometry and has 2.3 times lower uncertainty. From combined MHI, H/D and muonic H/D data, we determine the baryon mass ratio m&sub(d)/m&sub(p) with 1.1 × 10*−*1*0 absolute uncertainty. The value agrees with the directly measured mass ratio*6. Finally, we present a match between a theoretical prediction and an experimental result, with a fractional uncertainty of 8.1 × 10*−*1*2. Both results indicate a notable confirmation of the predictive power of quantum theory and the absence of beyond-the-standard-model effects at these levels.
ОИЯИ = ОИЯИ (JINR)2025
Alighanbari, S.
High-Accuracy Laser Spetroscopy of H*+&sub(2) and the Proton-Electron Mass Ratio / S.Alighanbari, V.I.Korobov, [a.o.]. – Text : electronic // Nature. – 2025. – Vol. 644, No. 8075. – P. 69-75. – URL: https://doi.org/10.1038/s41586-025-09306-2. – Bibliogr.: 52.
The molecular hydrogen ions (MHI) are three-body systems suitable for advancing our knowledge in several domains: fundamental constants, tests of quantum physics, search for new interparticle forces, tests of the weak equivalence principle1 and, once the anti-molecule p^-P^-e*+ becomes available, new tests of charge–parity–time-reversal invariance and local position invariance1,2,3. To achieve these goals, high-accuracy laser spectroscopy of several isotopologues, in particular H*+&sub(2) , is required4. Here we present a Doppler-free laser spectroscopy of a rovibrational transition, achieving line resolutions as large as 2.2 × 10*1*3. We accurately determine the transition frequency with 8 × 10&sup(−12) fractional uncertainty. We also determine the spin–rotation coupling coefficient with 0.1 kHz uncertainty and its value is consistent with the state-of-the-art theory prediction5. The combination of our theoretical and experimental H*+&sub(2) data allows us to deduce a new value for the proton-electron mass ratio m&sub(p)/m&sub(e). It is in agreement with the value obtained from mass spectrometry and has 2.3 times lower uncertainty. From combined MHI, H/D and muonic H/D data, we determine the baryon mass ratio m&sub(d)/m&sub(p) with 1.1 × 10*−*1*0 absolute uncertainty. The value agrees with the directly measured mass ratio*6. Finally, we present a match between a theoretical prediction and an experimental result, with a fractional uncertainty of 8.1 × 10*−*1*2. Both results indicate a notable confirmation of the predictive power of quantum theory and the absence of beyond-the-standard-model effects at these levels.
ОИЯИ = ОИЯИ (JINR)2025
