Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Recursive Soft Drop   We introduce a new jet substructure technique called Recursive Soft Drop,
which generalizes the Soft Drop algorithm to have multiple grooming layers.
Like the original Soft Drop method, this new recursive variant traverses a jet
clustering tree to remove soft wide-angle contamination. By enforcing the Soft
Drop condition N times, Recursive Soft Drop improves the jet mass resolution
for boosted hadronic objects like W bosons, top quarks, and Higgs bosons. We
further show that this improvement in mass resolution persists when including
the effects of pileup, up to large pileup multiplicities. In the limit that N
goes to infinity, the resulting groomed jets formally have zero catchment area.
As an alternative approach, we present a bottom-up version of Recursive Soft
Drop which, in its local form, is similar to Recursive Soft Drop and which, in
its global form, can be used to perform event-wide grooming.

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The categories of this paper are: physics
9
The categories of this paper are: nlin
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
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The categories of this paper are: nucl-th
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The categories of this paper are: cond-mat
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The categories of this paper are: bayes-an
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The categories of this paper are: q-alg
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The categories of this paper are: econ
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
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The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
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The categories of this paper are: chem-ph
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The categories of this paper are: acc-phys