Magnetic trapping and Zeeman relaxation of imidogen (NH X-triplet-Sigma)

Details Magnetic trapping and Zeeman relaxation of imidogen (NH X-triplet-Sigma) Magnetic trapping and Zeeman relaxation of imidogen (NH X-triplet-Sigma)

2007-02-08

arxiv.org/abs/physics/0702071v3

Phys. Rev. Lett. 98, 213001 (2007)

Physics

Atomic Physics

12 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.98.213001

Imidogen (NH) radicals are magnetically trapped and their Zeeman relaxation and energy transport collision cross sections with helium are measured. Continuous buffer-gas loading of the trap is direct from a room-temperature molecular beam. The Zeeman relaxation (inelastic) cross section of magnetically trapped electronic, vibrational and rotational ground state imidogen in collisions with He-3 is measured to be 3.8 +/- 1.1 E-19 cm^2 at 710 mK. The NH-He energy transport cross section is also measured, indicating a ratio of diffusive to inelastic cross sections of gamma = 7 E4 in agreement with the recent theory of Krems et al. (PRA 68 051401(R) (2003))

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