English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In this work we report the results concerning calculations forquantum-mechanical rotational transitions in molecular hydrogen, H$_2$, inducedby an ultra-cold ground state anti-hydrogen atom $\bar{H}_{1s}$. Thecalculations are accomplished using a non-reactive close-couplingquantum-mechanical approach. The H$_2$ molecule is treated as a rigid rotor.The total elastic scattering cross section $\sigma_{el}(\epsilon)$ at energy$\epsilon$, state-resolved rotational transition cross sections$\sigma_{jj'}(\epsilon)$ between states $j$ and $j'$ and corresponding thermalrate coefficients $k_{jj'}(T)$ are computed in the temperature range 0.004 K $\lesssim T \lesssim$ 4 K. Satisfactory agreement with other calculations(variational) has been obtained for $\sigma_{el}(\epsilon)$.

Quenching of $para$-H$_2$ with an ultra-cold anti-hydrogen atom $\bar{H}_{1s}$