Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measuring superparticle masses at hadron collider using the transverse
  mass kink   We present a detailed study of the collider observable $m_{T2}$ applied for
pair-produced superparticles decaying to visible particles and a pair of
invisible lightest supersymmetric particles (LSPs). Analytic expressions of the
maximum of $m_{T2}$ over all events ($m_{T2}^{\rm max}$) are derived. It is
noticed that if the decay product of each superparticle involves more than one
visible particles, $m_{T2}^{\rm max}$ being a function of the {\it trial} LSP
mass ${m}_\chi$ has a kink structure at ${m}_\chi=$ true LSP mass, which can be
used to determine the mother superparticle mass and the LSP mass
simultaneously. To see how well $m_{T2}^{\rm max}$ can be constructed from
collider data, a Monte-Carlo analysis of the gluino $m_{T2}$ is performed for
some superparticle spectra.

1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int