Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Near-infrared LIF spectroscopy of HfF   The molecular ion HfF$^+$ is the chosen species for a JILA experiment to
measure the electron electric dipole moment (eEDM). Detailed knowledge of the
spectrum of HfF is crucial to prepare HfF$^+$ in a state suitable for
performing an eEDM measurement\cite{Leanhardt}. We investigated the
near-infrared electronic spectrum of HfF using laser-induced fluorescence (LIF)
of a supersonic molecular beam. We discovered eight unreported bands, and
assign each of them unambiguously, four to vibrational bands belonging to the
transition $[13.8]0.5 \leftarrow X1.5$, and four to vibrational bands belonging
to the transition $[14.2]1.5 \leftarrow X1.5$. Additionally, we report an
improved measurement of vibrational spacing of the ground state, as well as
anharmonicity $\omega_e x_e$.

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The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
19
The categories of this paper are: eess
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The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
12
The categories of this paper are: nucl-th
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The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int