The fundamental rotational interval of para-H2+ by MQDT-assisted Rydberg spectroscopy of H2 | Zendy

Christa Haase | Zendy; Maximilian Beyer | Zendy; Christian Jungen | Zendy; F. Merkt | Zendy

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The fundamental rotational interval of para-H2+ by MQDT-assisted Rydberg spectroscopy of H2

Author(s) -

Christa Haase,

Maximilian Beyer,

Christian Jungen,

F. Merkt

Publication year - 2015

Publication title -

the journal of chemical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.071

H-Index - 357

eISSN - 1089-7690

pISSN - 0021-9606

DOI - 10.1063/1.4907531

Subject(s) - rydberg formula , quantum defect , hydrogen spectral series , atomic physics , extrapolation , principal quantum number , physics , rydberg state , rydberg constant , series (stratigraphy) , rydberg atom , ground state , chemistry , quantum , quantum mechanics , ionization , ion , mathematical analysis , mathematics , quantum dissipation , paleontology , biology

Transitions from selected nd Rydberg states of H2 to n'p/f Rydberg series converging on the lowest two (N(+) = 0 and 2) rotational levels of the X(+) (2)Σg (+) (v(+) = 0) ground state of para-H2 (+) have been measured in the range 1-7.4 THz using a laser-based, pulsed, narrow-band source of submillimeter-wave radiation. The analysis of the spectra by multichannel quantum-defect theory (MQDT) has allowed a complete interpretation of the fine structures of the Rydberg series and their dependence on the principal quantum number. The extrapolation of the series to their limits with MQDT has enabled the determination of the first rotational interval of para-H2 (+), which is 174.236 71(7) cm(-1) (5 223 485.1(2.3) MHz).

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