Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Status of the Project 8 Phase II   The Project 8 collaboration aims to measure the absolute neutrino mass scale
using cyclotron radiation emission spectroscopy on the beta decay of tritium.
The second phase of the project will measure a continuous spectrum of molecular
tritium beta decays and extract the tritium endpoint value with an eV or sub-eV
scale precision. Monoenergetic electrons emitted by gaseous $^{83\mathrm{m}}$Kr
atoms are used to determine the relationship between cyclotron frequency and
electron energy. This study allows us to optimize both the event reconstruction
algorithm and the hardware configuration, in preparation for measuring the
tritium beta decay spectrum. Phase II will benefit from a gas system of krypton
and tritium that will allow measurement of and offline correction for magnetic
field fluctuations. We present the recent progress in understanding the
electron kinematics and implementing the magnetic field calibration.

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The categories of this paper are: acc-phys
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The categories of this paper are: chao-dyn
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The categories of this paper are: math-ph
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The categories of this paper are: adap-org
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The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
2
The categories of this paper are: math
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The categories of this paper are: eess
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The categories of this paper are: plasm-ph
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The categories of this paper are: stat
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The categories of this paper are: econ
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The categories of this paper are: q-fin
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The categories of this paper are: dg-ga
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The categories of this paper are: alg-geom
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The categories of this paper are: cmp-lg
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The categories of this paper are: solv-int