Oxford ATLAS SUSY group “If it’s there, we’ll find it…” Alan Claire Andree Alex Mireia Will 2 Run-1 papers submitted 7 conference notes 5 analyses in progress Upgrade performance Upgrade physics studies James (joint with TH) Chris (now CERN fellow)

ATLAS SUSY publications ATLAS Supersymmetry public results page: First two Run-I PAPERs both Oxford led First SUSY search with Higgs boson Oxford led

Oxford-led papers since Oct 2012 arXiv:1308.1841 / CERN-PH-EP-2013-110 / submitted to JHEP, “Search for new phenomena in final states with large jet multiplicities and missing transverse momentum at √s = 8 TeV proton-proton collisions using the ATLAS experiment” The first ATLAS run-1 SUSY paper Innovative search in very high jet multiplicity final states Very sensitive to squark/gluino production and cascade decays. arXiv:1308.2631 / CERN-PH-EP-2013-119 / submitted to JHEP, “Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in sqrt{s}=8 TeV pp collisions with the ATLAS detector” The second ATLAS run-1 SUSY paper World-leading sensitivity to sbottom squarks Interpretations for stop squarks and near-degenerate squarks

SUSY multi-jet + pTmiss arXiv:1308.1841 SUSY multi-jet + pTmiss Novel method proposed by Chris Young Analysis led by Mireia Cripsin Ortuzar Papers edited by Chris Young & Alan Barr World-leading sensitivity to (esp. stop) squarks and gluinos in cascade decays Run-1 paper completed

SUSY sbottom searches Sbottom squark plays special role on SUSY arXiv:1308.2631 Sbottom squark plays special role on SUSY Search led by Alex Dafinca with Will Kalderon Different signal regions target different mass heirarchies (e.g. ISR) World-leading sensitivity to sbottom squarks Turns out also to be rather sensitive to stop squarks Run-I paper completed

SUSY Gaugino + Higgs searches ATLAS-CONF-2013-093 SUSY Gaugino + Higgs searches First search to look for Higgs in SUSY cascade decays Dedicated b-tagging performance studies Statistically limited, but providing first constraints Run-I CONF note completed  paper

Current activities Run-I papers Run-II preparation Leading new scharm analysis Leading new sbottom + Higgs search Initiated & active on new pMSSM summary & interpretations paper Initiated & active on new Standard Model multi-jet (unfolded) papers New NMSSM pheno/interpretations analysis Run-II preparation MET performance – Oxford-led B-tagging performance Physics capabilities – major Oxford input

SUSY scharm searches New analysis initiated Plots not public New analysis initiated Unique search aimed specifically at second generation squarks Selection based on sbottom case Charm-tagging based on neural network Complimentary to ATLAS stop  charm + LSP search

CONF notes since Oct 2012 ATLAS-CONF-2012-165, "Search for direct sbottom pair production in events with missing transverse momentum and two b-jets in 12.8/fb of pp collisions at √s = 8 TeV with the ATLAS detector“ ATLAS-CONF-2013-001, "Search for direct stop production in events with missing transverse momentum and two b-jets using 12.8/fb of pp collisions at √s = 8 TeV with the ATLAS detector" ATLAS-CONF-2013-053, “Search for direct third generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector”, May 2013 ATLAS-CONF-2013-054: “Search for new phenomena using final states with large jet multiplicities and missing transverse momentum with ATLAS in 20/fb at sqrt(s) = 8 TeV” ATLAS-CONF-2013-093, “Search for chargino and neutralino production in final states with one lepton, two b-jets consistent with a Higgs boson, and missing transverse momentum with the ATLAS detector in 20.3/fb of √s = 8 TeV pp collisions” ATLAS-COM-CONF-2012-205: "Search for direct stop production in events with missing transverse momentum and two b-jets using 12.8/fb of pp collisions at sqrt{s} = 8 TeV with the ATLAS detector", Dec 2012

COM/INT notes since Oct 2012 ATL-COM-PHYS-2012-1458: “Searches for Supersymmetry at the high luminosity LHC with the ATLAS Detector” ATL-COM-PHYS-2012-1505: "Search for sbottom pair production in final states with Missing Transverse Energy and 2 b-jets”, Oct 2012 ATL-COM-PHYS-2012-1762: "Search for sbottom pair production in final states with Missing Transverse Energy and 2 b-jets (with stop reinterpretation)", Dec 2012 ATL-COM-PHYS-2012-1814: “Quest for new phenomena using large jet multiplicities and missing transverse momentum with ATLAS in 20.3/fb of 8 TeV proton-proton collisions : Supporting documentation” ATL-COM-PHYS-2013-072: "Search for direct sbottom or stop pair production in final states with Missing Transverse Energy and two b-jets", Jan 2013 ATL-COM-PHYS-2013-140: “Search for new phenomena in final states with large jet multiplicities and missing transverse momentum at s√=8TeV proton-proton collisions using the ATLAS experiment” ATL-COM-PHYS-2013-348: “Search for weak gaugino production in final states with one lepton, two b-jets consistent with a Higgs boson, and missing transverse momentum with the ATLAS detector in 20.3/fb of sqrt(s) = 8 TeV pp collisions” ATL-COM-PHYS-2013-479: "Search for direct third generation squark pair production in final states with Missing Transverse Momentum and two b-jets in s√=8 TeV pp collisions with the ATLAS detector" ATL-COM-PHYS-2013-1012: “Jet and Missing ET Performance at High Luminosity” ATL-COM-PHYS-2013-1343: “Performance assumptions based on full simulation for an upgraded ATLAS detector at a High-Luminosity LHC”, Sept 2013

Conference/Workshop talks/posters EPS 2013, Stockholm NORDITA 2013, Stockholm Kruger 2012, South Africa Hadronic calibration workshop, Chicago, 2013 BOOST-2013, Flagstaff, Arizona ATLAS SUSY Workshop, Amsterdam, 2013