Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mass determination in sequential particle decay chains   A simple method is proposed for determining the masses of new particles in
collider events containing a pair of decay chains (not necessarily identical)
of the form Z -> Y+1, Y -> X+2, X -> N+3, where 1,2 and 3 are visible but N is
not. Initial study of a possible supersymmetric case suggests that the method
can determine the four unknown masses in effectively identical chains with good
accuracy from samples of a few tens of events.

12
The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: acc-phys
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The categories of this paper are: adap-org
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The categories of this paper are: quant-ph
3
The categories of this paper are: physics
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: nucl-ex
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The categories of this paper are: gr-qc
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The categories of this paper are: chem-ph
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The categories of this paper are: q-fin
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The categories of this paper are: stat
30
The categories of this paper are: q-alg