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Cold and ultracold NH–NH collisions: The field-free case
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10.1063/1.3570596
/content/aip/journal/jcp/134/12/10.1063/1.3570596
http://aip.metastore.ingenta.com/content/aip/journal/jcp/134/12/10.1063/1.3570596
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Elastic and inelastic M J -changing cross sections for 14NH + 14NH and 15NH + 15NH collisions, assuming that all molecules are in their magnetically trappable and nuclear-spin stretched state.

Image of FIG. 2.
FIG. 2.

Elastic and inelastic M J -changing cross sections for magnetically trapped 14NH, assuming a statistical mixture of nuclear-spin states.

Image of FIG. 3.
FIG. 3.

State-to-state inelastic cross sections for magnetically trapped 15NH as a function of collision energy. The final states are labeled by .

Image of FIG. 4.
FIG. 4.

Elastic and inelastic M J -changing cross sections for magnetically trapped 15NH obtained from scattering calculations with only the quintet state included in the basis. The cross sections calculated with all three spin states included (all S) are shown for comparison.

Image of FIG. 5.
FIG. 5.

Elastic and inelastic M J -changing cross sections for magnetically trapped 15NH as a function of the scaling parameter λ, calculated at collision energies of 10−6, 10−4, and 10−3 K. The elastic cross sections for 10−4 K are the same as for 10−6 K.

Image of FIG. 6.
FIG. 6.

Elastic-to-inelastic cross-section ratios for magnetically trapped 15NH as a function of the scaling parameter λ, calculated at collision energies of 10−6, 10−4, and 10−3 K. The horizontal black line indicates the critical value of 150 that is required for efficient evaporative cooling.

Image of FIG. 7.
FIG. 7.

Elastic and inelastic M J -changing cross sections for magnetically trapped 15NH as a function of λ, calculated for different basis sets at a collision energy of 10−6 K. Solid lines correspond to elastic cross sections and dashed lines correspond to inelastic cross sections. Different colors represent different basis sets.

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/content/aip/journal/jcp/134/12/10.1063/1.3570596
2011-03-28
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Cold and ultracold NH–NH collisions: The field-free case
http://aip.metastore.ingenta.com/content/aip/journal/jcp/134/12/10.1063/1.3570596
10.1063/1.3570596
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