Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Search for direct stop pair production with the ATLAS detector   Supersymmetry, which extends the Standard Model (SM) by introducing
supersymmetric partners for the SM particles, can provide an elegant solution
to the hierarchy problem. One of the most important parameters in supersymmetry
is the mass of the supersymmetric partner to the top quark, referred to as
stop. In the absence of the stop signature in the previous searches at the LHC,
compressed stop searches in which the mass of the stop is close to the mass of
the lightest neutralino become more important. In scenarios with compressed
mass spectra, the momentum transfer to the decay products of the stop may be
small, leading to decay products with transverse momenta of only a few GeV.
Hence, the identification and reconstruction of those "soft" objects can play a
crucial role in the searches. In this article, recent results from the
compressed stop searches in pp collisions at $\sqrt{s}$ =13 TeV with the ATLAS
detector and new developments for soft b-hadron tagging techniques are
presented.

11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc