SUSY and BSM Searches in ATLAS Page: 1 of 6
This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided to Digital Library by the UNT Libraries Government Documents Department.
The following text was automatically extracted from the image on this page using optical character recognition software:
SUSY and BSM Searches in ATLAS
Till Eifert, On behalf of the ATLAS Collaboration
SLAC National Accelerator Laboratory
2575 Sand Hill Road, Menlo Park, CA, USA
A brief report on supersymmetry (SUSY) and other beyond-SM (BSM) searches in
s = 7 TeV pp collisions using up to 4.7fbl'of ATLAS  data at the LHC is
presented. The shown results correspond to the status as of June 2012.
2 Supersymmetry searches
SUSY searches within ATLAS are grouped into R-parity conserving (RPC), and R-
parity violating (RPV) together with long-lived particle models. Searches for RPC
models are further divided into inclusive searches for strong production, searches for
third generation squarks (direct and indirect production), and electroweak production
(Xi, V>, i). In the following, results with less than 1.0 fbl'of data are omitted.
Table 1 lists the most relevant inclusive SUSY searches. Long cascade decays
are searched for both with and without leptons. Exclusion limits of the all-hadronic
search are shown in Fig. 1. The most stringent limits exclude squark and gluino masses
up to 1.4 TeV (for m ~i mg). The signature of GMSB models is to a large extent
determined by the next-to-lightest-SUSY-particle (NLSP). Depending on its nature
taus, photons, or Z bosons are emitted, which defines the corresponding searches.
Table 2 lists SUSY searches for third generation squarks. A light F is motivated by
naturalness arguments. Exclusion limits for a gluino-mediated F model and a direct
F production scenario are shown in Fig. 2. In the first scenario gluino masses are
excluded up to about 900 GeV for mro < 200 GeV, and a very-light [ is excluded by
the second search up to a mass of about 135 GeV. 1
Table 3 lists ATLAS searches for electroweak production. In a A -40 production
model where each decay proceeds via a i thus giving rise to large lepton mutliplicities,
gaugino masses are excluded up to 300 GeV .
Table 4 lists searches for RPV and long-lived scenarios. These searches typically
exploit experimentally challenging signatures, e.g. a displaced vertex, a disappearing
track, or a stable massive particle, or energy deposits in unpaired bunches. The search
for disappearing tracks  excludes non-prompt chargino masses up to 118 GeV.
'These values are derived from the -1 o observed limit contours.
Submitted to the Physics at LHC 2012 (PLHC 2012)
Vancouver, BC, Canada, June 4-9, 2012
Work supported in part by US Department of Energy under contract DE-AC02-76SF00515.
Here’s what’s next.
This article can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Article.
Eifert, Till. SUSY and BSM Searches in ATLAS, article, July 16, 2013; United States. (digital.library.unt.edu/ark:/67531/metadc845871/m1/1/: accessed December 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.