ATLAS Event Displays from papers

The event displays below are part of publications of the ATLAS Collaboration. If you wish to use these event displays for other purposes than presentations of ATLAS results, please see the copyright statement.

The main Event Display Public Page gives an overview on all available public event displays.

2010

Performance of the ATLAS detector using first collision data (15 September 2010)

Figure 14: An event containing a secondary vertex selected by the secondary vertex algorithm. The pixel detector can be seen on the left and an expansion of the vertex region on the right. Unassociated hits, in a lighter colour, are predominantly due to unreconstructed particles such as those with transverse momenta below 0.5 GeV. eps, 893kB png, 674kB

Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at sqrt(sNN) = 2.76 TeV with the ATLAS detector at the LHC (25 November 2010)

Figure 1: Event display of a highly asymmetric dijet event, with one jet with ET > 100 GeV and no evident recoiling jet, and with high energy calorimeter cell deposits distributed over a wide azimuthal region. By selecting tracks with pT > 2.6 GeV and applying cell thresholds in the calorimeters (ET > 700 MeV in the electromagnetic calorimeter, and E > 1 GeV in the hadronic calorimeter) the recoil can be seen dispersed widely over azimuth. png, 1448kB

2011

Search for supersymmetry using final states with jets, one isolated electron or muon, and missing transverse momentum with the ATLAS detector in sqrt(s) = 7 TeV proton-proton collisions at the LHC (11 February 2011)

Figure 7a: ATLAS event display of electron event in signal region (run 167661, event 18412580). eps, 8940kB png, 2452kB
Figure 7b: ATLAS event display of electron event in signal region (run 167661, event 18412580). eps, 3021kB png, 1939kB
Figure 8a: ATLAS event display of muon event in signal region (run 165815, event 12365502) eps, 9227kB png, 2562kB
Figure 8b: ATLAS event display of muon event in signal region (run 165815, event 12365502) eps, 3110kB png, 1849kB

Search for squarks and gluinos using final states with jets and missing transverse momentum with the ATLAS detector in sqrt(s) = 7 TeV proton-proton collisions (25 February 2011)

Figure 21: Event display of the event number 20330190 in run number 167776 which has two jets each of p_T of approximately 170 GeV and with E_T^miss of approximately 330 GeV. This event is found in signal regions A and B. eps, 34224kB png, 2018kB
Figure 22: Event display of event number 104148673 from run number 167607 which has three jets (p_T of approximately {400 GeV, 120 GeV, 60 GeV} and E_T^miss of approximately 420 GeV. This event is found in signal regions B, C and D. eps, 34224kB png, 1744kB

Search for high mass dilepton resonances in the ATLAS experiment at sqrt{s} = 7 TeV with the ATLAS experiment (31 March 2011)

Figure 13a: This event display is for the highest invariant mass dielectron event. The highest momentum electron has a pT of 279 GeV and an (eta, phi) of (1.22, 1.74). The trailing electron has a pT of 276 GeV and an (eta, phi) of (0.28, -1.40). The invariant mass of the pair is 617 GeV. eps, 23130kB png, 1063kB

Figure 13b: This event display is for the highest invariant mass dimuon event. The highest momentum muon has a pT of 186 GeV and an (eta, phi) of (-2.39, -1.54). The trailing muon has a pT of 165 GeV and an (eta, phi) of (0.46, 1.95). The invariant mass of the pair is 768 GeV. The missing E_T for this event is less than 25 GeV, which indicates the muons are balanced and therefore reconstructed properly. eps, 6154kB png, 1342kB

Measurement of isolated di-photon cross-section in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector (1 July 2011)

Figure 15: Di-photon event display with high m_gammagamma (m_gammagamma = 188.8 GeV), showing a conversion (leading photon).   pTclus [GeV] ETiso [MeV] quality Rconv [mm] pTconv.track(s) [GeV] leading gamma 94.5 2133 tight 131.1 50.2, 39.2 sub-leading gamma 83.0 1208 tight -- -- eps, 12433kB png, 3060kB
Figure 16: Di-photon event display with small DeltaPhi_gammagamma (DeltaPhi_gammagamma = 1.53, m_gammagamma = 143.1 GeV), and an additional jet in the ECAL endcap (shown on the right).   pTclus [GeV] ETiso [MeV] quality Rconv [mm] pTconv.track(s) [GeV] leading gamma 93.3 -790 tight -- -- sub-leading gamma 72.8 -1630 tight -- -- eps, 12894kB png, 3290kB
Figure 17: Di-photon event display with a non-isolated photon (right candidate in the (x,y) display, close view in the bottom right pad).   pTclus [GeV] ETiso [MeV] quality Rconv [mm] pTconv.track(s) [GeV] leading gamma 129 995 tight -- -- sub-leading gamma 83 19000 tight -- -- eps, 11602kB png, 3014kB
Figure 18: Di-photon event display also selected by the H->gammagamma analysis (m_gammagamma = 116 GeV), showing a conversion (leading photon). The conversion pair is very asymmetric, and the softer track is displayed only in the right pad.   pTclus [GeV] ETiso [MeV] quality Rconv [mm] pTconv.track(s) [GeV] leading gamma 58.8 1679 tight 258 51.7, 1.0 sub-leading gamma 56.6 -673 tight -- -- eps, 12806kB png, 3276kB
Figure 19: Di-photon event display also selected by the H->gammagamma analysis (m_gammagamma = 115 GeV), showing a conversion (sub-leading photon). The conversion pair is very asymmetric, and the softer track is not displayed.   pTclus [GeV] ETiso [MeV] quality Rconv [mm] pTconv.track(s) [GeV] leading gamma 43.0 1008 tight -- -- sub-leading gamma 38.0 1492 tight 47.96 32.4, 1.1 eps, 12681kB png, 3348kB

Search for Diphoton Events with Large Missing Transverse Energy with 36 pb^-1 of 7 TeV Proton-Proton Collision Data with the ATLAS Detector (4 July 2011)

(additional auxiliary) Figure 2: ATLANTIS event display of the event number 25312461 in run 166658 which has two unconverted, high ET photons (ET = 138 GeV, eta=-0.44, phi=2.1 and ET = 121 GeV, eta=-0.09, phi=-1.7), four jets (ET = 390 GeV, eta=0.43, phi=2.2, ET = 271 GeV, eta=-0.61, phi=-0.5, ET = 52 GeV, eta=0.36, phi=-1.4 and ET = 47 GeV, eta=-0.07, phi=-1.2) and ETmiss = 92 GeV (red line). The total photon \ET and direction is indicated by pink lines. eps, 34224kB png, 1707kB

(additional auxiliary) Figure 3: ATLANTIS event display of the event number 80399589 in run 166658 which has two high ET photons (ET = 336 GeV, eta=1.33, phi=1.9 and ET = 60 GeV, eta=1.16, phi=-0.2), two jets (ET = 209 GeV, eta=-1.27, phi=-1.5 and ET = 75 GeV, eta=1.19, phi=-0.8) and ETmiss = 71 GeV. The photon at (eta,phi) = (1.16/-0.2) is a double-track conversion (red line). The photon at (eta,phi) = (1.16/-0.2) is a double-track conversion. The total photon ET and direction is indicated by yellow lines above the calorimeter system. eps, 8581kB png, 313kB

Measurement of multi-jet cross sections in proton-proton collisions at a 7 TeV center-of-mass energy (11 July 2011)

Figure 2: Event display of a six-jet event satisfying the analysis requirements. The towers in the bottom right figure represent transverse energy deposited in the calorimeter projected on a grid of eta and phi. eps, 5175kB png, 1063kB

Search for a heavy gauge boson decaying to a charged lepton and a neutrino in 1 fb-1 of pp collisions at sqrt(s) = 7 TeV using the ATLAS detector (4 August 2011)

Figure 4: Highest-mT event (mT = 1334 GeV) observed in data for the electron channel. End (top left) and side (top right) views of the event, and an eta-phi histogram of ET measured in the calorimeter (top right) are shown. The electron (red) has pT = 668 GeV and the missing ET (dashed) is 667 GeV. Inner detector tracks tracks with pT > 1 GeV are shown. The threshold to display calorimeter energy deposits is ET > 1 GeV. eps, 3606kB png, 323kB

Search for dilepton resonances in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector (7 August 2011)

Figure 20: This event display is for the highest invariant mass dielectron event. The highest energy electron has an E_T of 257 GeV and an (eta, phi) of (-0.76, 1.14). The subleading electron has an E_T of 207 GeV and an (eta, phi) of (2.05, -2.05). The invariant mass of the pair is 993 GeV. Only tracks with p_T > 1 GeV are shown. eps, 4177kB png, 376kB
Figure 21: This event display is for the highest invariant mass dimuon event. The highest momentum muon has a P_T of 510 GeV and an (\eta, phi) of (0.37, 3.01). The subleading muon has a P_T of 437 GeV and an (eta, phi) of (0.72, -0.12). The invariant mass of the pair is 959 GeV. Only tracks with P_T > 0.5 GeV are shown. eps, 11411kB png, 1394kB

Search for Displaced Vertices Arising from Decays of New Heavy Particles in 7 TeV pp Collisions at ATLAS (13 September 2011)

Figure 2: An event from a jet-trigger data sample, where a high-mass vertex (circled) is the result of an apparently random, large-angle intersection between a track and alow-mass hadronic-interaction vertex produced in a pixel module. Tracks originating from this vertex are shown in blue, those from the primary vertex are green, and other tracks are orrange. The beampipe and pixel modules with track hits are shown. eps, 308kB png, 124kB

Search for a heavy neutral particle decaying into an electron and a muon using 1 fb-1 of ATLAS data (15 September 2011)

Additional auxiliary plots
Figure 6: Event display for run 179804 event 71334854, the emu pair in this event gives the highest m_emu. In this event, electron p_T = 341 GeV, eta = -1.17, phi = 0.91; muon p_T = 216 GeV, eta = 0.14, phi = -2.36; m_emu = 662 GeV, Deltaphi_emu = 3.02 and MET = 132 GeV. There is no jet with p_T>30 GeV in this event. eps, 1992kB png, 1220kB

Search for squarks and gluinos using final states with jets and missing transverse momentum with the ATLAS detector in sqrt(s)=7 TeV proton-proton collisions (29 September 2011)

Additional auxiliary plots
Figure 29: A display of the reconstructed event with the highest meff found in the data sample used for this note. This event possesses five jets with pt > 40 GeV (pt = 528, 418, 233, 171 and 42 GeV respectively), met = 460 GeV and meff =1810 GeV (calculated using the leading four jets). eps, 8233kB png, 2000kB

Search for supersymmetry in final states with jets, missing transverse momentum and one isolated lepton in sqrt{s} = 7 TeV pp collisions using 1 fb^-1 (30 September 2011)

Additional auxiliary plots
Figure 24: Event display of the electron event with the highest effective mass, at more then 1400 GeV. The four leading jets have transverse momenta of > 655, 303, 69 and 52 GeV. There are also two muons correspdonding to the two high pt jets in the event, both of which fail the overlap removal. eps, 8551kB png, 302kB

Electron performance measurements with the ATLAS detector using the 2010 LHC proton-proton collision data (14 October 2011)

Additional auxiliary plots
Figure 5a: Event displays of beam-halo muon bremsstrahlung showers which mimic probe electron candidates in the Wen analysis. Many hits in both TRT end-caps, and the EM cluster and cells in the end-cap calorimeter are visible on the away side of the incoming halo muon. eps, 157kB png, 167kB
Figure 5b: Event displays of beam-halo muon bremsstrahlung showers which mimic probe electron candidates in the Wen analysis. Many hits in both TRT end-caps, and the EM cluster and cells in the end-cap calorimeter are visible on the away side of the incoming halo muon. eps, 181kB png, 188kB

Search for diphoton events with large missing transverse momentum with 1 fb^-1 of 7 TeV proton-proton collision data with the ATLAS detector (18 November 2011)

Additional auxiliary plots
Figure 3: ATLANTIS event display of the event number 96325074 in run 183130 which has two unconverted, high ET photons (ET = 398 GeV, eta=0.71, phi=1.6 and ET = 265 GeV, eta=0.49, phi=-1.5), three jets (ET = 138 GeV, eta=1.46, phi=0.9, ET = 55 GeV, eta=0.87, phi=2.1 and ET = 31 GeV, eta=2.64, phi=0.9) and ETmiss=302 GeV (red line in x-y view, grey line in the ET view). The total photon ET and direction is indicated by yellow lines. eps, 1525kB png, 1421kB
Figure 4: ATLANTIS event display of the event number 88300635 in run 183216 which has a single-track conversion, high ET photon (ET = 432 GeV, eta=-0.90, phi=-1.5, R=571 mm) and a double-track conversion, high ET photon (ET = 51 GeV, eta=-0.13, phi=1.2, R=50 mm), four jets (ET = 210 GeV, eta=0.92, phi=1.5, ET = 93 GeV, eta=1.34, phi=-2.0, ET = 61 GeV, eta=-0.32, phi=-0.9 and ET = 23 GeV, eta=1.52, phi=1.59) and ETmiss=338 GeV (red line in x-y view, grey line in the ET view). The total photon ET and direction is indicated by yellow lines. eps, 1505kB png, 1982kB

Search for Extra Dimensions Using Diphoton Events in 7 TeV Proton-Proton Collisions with the ATLAS Detector (9 December 2011)

Additional auxiliary plots
Figure 7: Event display of the highest mass diphoton event. Event information: Run and event numbers = 186934, 4101410. mgg = 1.49 TeV, Leading photon ET, eta, phi, Iso = 520 GeV, -1.60, -0.58, -0.13. Subleading photon ET, eta, phi, Iso = 470 GeV, 0.34, 2.58, 1.72. Both photons are converted. eps, 4669kB png, 732kB
Figure 8: Event display of the second highest mass diphoton event. Event information: Run and event numbers = 186178, 360016. mgg = 1.38 TeV, Leading photon ET, eta, phi, Iso = 254 GeV, 1.85, 2.57, -1.05. Subleading photon ET, eta, phi, Iso = 205 GeV, -1.70, -1.25, 2.87. Both photons are unconverted. eps, 4803kB png, 767kB

Search for Scalar Bottom Pair Production with the ATLAS Detector in pp Collisions at sqrt{s} =7 TeV (16 December 2011)

Additional auxiliary plots
Figure 8: Event display for one of the events in the signal region. The event has 2 b-tagged jets with (pt, eta, phi) of (152 GeV, 1.6, 1.0) and (96 GeV, 1.8, -0.1), respectively. The Missing transverse energy is equal to 205 GeV and Mct(bb)=201 GeV. eps, 8319kB png, 616kB

Jet energy measurement with the ATLAS detector in proton-proton collisions at sqrt(s) = 7 TeV (29 December 2011)

Figure 1: Display of the central part of the ATLAS detector in the x-z view showing the highest mass central dijet event collected during the 2010 data taking period. The two leading jets have ptjet = 1.3 TeV with \rapjet = -0.68 and ptjet = 1.2 TeV with rap = 0.64, respectively. The two leading jets have an invariant mass of approximately 3.1 TeV. The missing transverse energy in the event is 46 GeV. The lines in the inner detector indicate the reconstructed particle trajectories. The energy deposition in the calorimeter cells are displayed as light rectangles. The area of the rectangles is proportional to the energy deposits. The histograms attached to the LAr and the Tile calorimeter illustrate the amount of deposited energy. eps, 41792kB png, 245kB
Figure 2: Zoom of the x-y view of the ATLAS detector showing one of the high-pt jets of the event shown in Figure above. The energy depositions in the calorimeter cells are displayed as light rectangles. The area of the rectangles is proportional to the energy deposits. The dark histograms attached to the LAr (Tile) calorimeter illustrates the amount of deposited energy. The lines in the ID display the reconstructed tracks originating from the interaction vertex. eps, 39706kB png, 392kB
Figure 90: Graphical representation in a zoomed x-y view of an event candidate with one large transverse momentum jet (ptjet=176 GeV) having a large activity in the last Tile calorimeter layer (82 GeV at the EM scale) and in the muon detectors. The tracks in the inner detector are shown as lines in the top right, the energy deposits in the \LAr{} and \Tile{} calorimeters are shown as light boxes. The hits in the muon system are shown as points. There are 128 hits measured in the muon system. eps, 38691kB png, 44kB

2012

Observation of a New χb State in Radiative Transitions to Υ(1S) and Υ(2S) at ATLAS (12 January 2012)

Figure 15: Event display for a χb(3P) candidate reconstructed using an unconverted photon. For this candidate, m(μμγ)-m(μμ)+m(Υ(1S)) = 10.54 GeV eps, 6601kB png, 1991kB
Figure 16: Event display for a χb(3P) candidate reconstructed using an converted photon. For this candidate, m(μμγ)-m(μμ)+m(Υ(1S)) = 10.54 GeV eps, 4972kB png, 2132kB

Search for excited leptons in proton-proton collisions at sqrt(s} = 7 TeV with the ATLAS detector (16 January 2012)

Additional auxiliary plots
Figure aux11: Event display for the event containing the highest dielectron-photon mass: 970 GeV. The pT of the electrons and photons are 390, 388 and 36 GeV, respectively. The dielectron mass is 920 GeV, whereas the mass of the two electron-photon combinations are 179 and 246 GeV. eps, 4096kB png, 981kB
Figure aux12: Event display for the event containing the highest dimuon-photon mass: 890 GeV. The pT of the muons and photons are 91, 84 and 165 GeV, respectively. The dimuon mass is 165 GeV, whereas the mass of the two muon-photon combinations are 721 and 491 GeV. The display is made with ATLANTIS. eps, 4625kB png, 643kB
Figure aux13: Event display for the event containing the highest dimuon-photon mass: 890 GeV. The pT of the muons and photons are 91, 84 and 165 GeV, respectively. The dimuon mass is 165 GeV, whereas the mass of the two muon-photon combinations are 721 and 491 GeV. The display is made with PERSINT. eps, 1423kB png, 738kB

Search for anomaly-mediated supersymmetry based on a disappearing-track signature with the ATLAS detector in pp collisions at sqrt(s)=7TeV (23 February 2012)

Additional auxiliary plots
Figure 2: Event display of an interacting hadron background track in the data sample remaining after all the selection cuts. The hadron shower in the TRT detector and the calorimeter activity are visible. eps, 2384kB png, 3853kB
Figure 3: Event display of the badly reconstructed track observed in the control sample. The track is most likely seeded from an incorrect combination of SCT space-points, therefore, it misses nearby hits in the TRT. Associated pixel hits and calorimeter activity also cannot be found. eps, 1903kB png, 3929kB

Search for Events with Large Missing Transverse Momentum, Jets, and at Least Two Tau Leptons in 7 TeV Proton-Proton Collision Data with the ATLAS Detector (30 March 2012)

Additional auxiliary plots
Figure 1: Event display for run 180400, event 58989646 eps, 7773kB png, 3549kB

Search for resonant WZ production in the WZ to lvll channel in sqrt(s)=7 TeV pp collisions with the ATLAS detector (7 April 2012)

Additional auxiliary plots
Figure 5: Event display of the highest WZ transverse mass event. This event is from mvmm channel, with a WZ transverse mass of 506.25 GeV. eps, 909kB png, 905kB

Search for Scalar Top Quark Pair Production in Gauge Mediated Supersymmetry breaking Natural models (1 May 2012)

Additional auxiliary plots

Figure 10: Event display for one of the events in the signal region. This is the highest ETmiss event (ETmiss = 301 GeV) and is found in the ee channel. The five leading jets have transverse momenta pT = 128, 114, 66, 69, 46 GeV, respectively, and the third and fifth jets are b-tagged. The two opposite-sign electrons have transverse momenta pT = 54, 28 GeV, respectively, and the two-electron invariant mass is 93.5 GeV. eps, 8405kB png, 1224kB

Search for the Standard Model Higgs boson in the H → WW(*) → lνlν decay mode with 4.7 fb-1 of ATLAS data at √s = 7 TeV (3 June 2012)

Additional auxiliary plots
Figure 16: Display of an event satisfying all the selection criteria for events in the 0-jet eμ channel. The reconstructed mT is 86 GeV. eps, 8602kB png, 3208kB

Hunt for new phenomena using large jet multiplicities and missing transverse momentum with ATLAS in L = 4.7 fb-1 of sqrt(s) = 7 TeV proton-proton collisions (11 June 2012)

Figure 8: A display of an event which passes the 9j55 and 7j80 signal region selections. The event has MET/√HT of 4.1 √GeV and MET of 157 GeV. eps, 11229kB png, 5503kB
Figure 9: A display of an event which passes all the signal region selections. The event has MET/√HT of 11.6 √GeV and MET of 397 GeV. eps, 17185kB png, 6031kB

Search for a Standard Model Higgs boson in the mass range 200-600 GeV in the H->ZZ->llqq decay channel with the ATLAS Detector (11 June 2012)

Additional auxiliary plots
Figure 5: A candidate high-m(H) H -> ZZ -> mu mu bb event with m(mumubb) = 332 GeV. The event contains two muons with p_T > 20 GeV and two identified b-jets with p_T > 25 GeV (grey cones). The left hand side shows the transverse (top) and longitudinal (bottom) views, while the top right plot shows the calorimeter energy versus eta and phi. png, 163kB
Figure 6: A candidate high-m(H) H -> ZZ -> ee bb event with m(eebb) = 326 GeV. The event contains two electrons with p_T > 20 GeV and two identified b-jets with p_T > 25 GeV (grey cones). The left hand side shows the transverse (top) and longitudinal (bottom) views, while the top right plot shows the calorimeter energy versus eta and phi. png, 165kB

Search for the Higgs boson in the $H\rightarrow WW\rightarrow\ell\nu jj$ decay channel at $\boldmath{\sqrt{s}}$ = 7\,TeV with the ATLAS detector (25 June 2012)

Figure 11: Event display of a $H\to WW\to\mu^+\nu jj+0j$ candidate with invariant mass 584~GeV. The $m_{jj}$ is 87~GeV and $m_T^{\mu\nu}$ is 47~GeV and $\met= 73$~GeV. The first jet has $\pt = 197$~GeV and $\eta = -1.13$. The second jet has $\pt = 59$~GeV and $\eta = -0.39$. The muon has $\pt = 160$~GeV and $\eta = 0.30$. eps, 2521kB png, 2308kB

Figure 12: Event display of a $H\to WW\to\mu^+\nu jj+1j$ candidate with invariant mass 388~GeV. The $m_{jj}$ is 79~GeV and $m_T^{\mu\nu}$ is 39~GeV and $\met= 128$~GeV. The first jet has $\pt = 88$~GeV and $\eta = 0.32$. The second jet has $\pt = 86$~GeV and $\eta = 1.03$. The third jet, which is \emph{not} matched to the hadronically decaying $W$, has $\pt = 45$~GeV and $\eta = -0.58$. The muon has $\pt = 49$~GeV and $\eta = -0.57$. eps, 2421kB png, 2378kB

Search for the Standard Model Higgs boson in the H -> tau tau decay mode in sqrt(s) = 7 Tev pp collisions with ATLAS (26 June 2012)

Additional auxiliary plots
Figure 17: Display of an event selected by the H -> tau_lep tau_had analysis in the H+2-jet VBF category, where the leptonic tau decay is to a muon. png, 945kB
Figure 23: Display of an event selected by the H -> tau_had tau_had analysis. png, 654kB

Search for the Standard Model Higgs boson produced in association with a vector boson and decaying to a b-quark pair with the ATLAS detector (30 June 2012)

Additional auxiliary plots
Figure 14: ZH->llbb candidate event. eps, 486kB png, 417kB
Figure 15: WH->lvbb candidate event. eps, 490kB png, 439kB
Figure 16: ZH->vvbb candidate event. eps, 473kB png, 413kB

A search for tt̄ resonances in lepton+jets events with highly boosted top quarks collected in pp collisions at √s = 7 TeV with the ATLAS detector (10 July 2012)

Figure 1: Event display for a tt̄ candidate event with large tt̄ mass, m = 2.5 TeV. The left panel displays a transverse view of the charged particle tracks and calorimeter energy deposits. An η - φ view of the same event is shown in the upper right panel. Jets reconstructed with R = 0.4 are indicated in green, jets with R = 1 in red. png, 351kB

Search for squarks and gluinos with the ATLAS detector in final states with jets and missing transverse momentum using 4.7 fb-1 of sqrt(s) = 7 TeV proton-proton collision data (4 August 2012)

Additional auxiliary plots
Figure 38: A display of the reconstructed event with the highest m_eff found in the data sample used for this note. This event possesses four jets with p_T > 40 GeV (p_T = 974, 276, 146 and 61 GeV respectively), E_T^miss = 984 GeV and m_eff =2441 GeV (calculated using the leading four jets). eps, 16096kB png, 3917kB

Search for high-mass resonances decaying to dilepton final states in pp collisions at sqrt(s)=7 TeV with the ATLAS detector (11 September 2012)

Additional auxiliary plots
Figure 35: Display of the third highest mass dielectron event (m_ee = 1.214 TeV). The electron tracks are shown in orange. eps, 1350kB png, 1038kB

Search for Dark Matter Candidates and Large Extra Dimensions in events with a photon and missing transverse momentum in pp collision data at sqrt(s) =7 TeV with the ATLAS detector (20 September 2012)

Additional auxiliary plots
Figure 3: Event display of one monophoton candidate with ETmiss = 218.3 GeV, phi-ETmiss = 2.52 radians, a photon with pt = 218.0 GeV, eta-gamma = 0.39$, phi-gamma = -0.68 radians, and no jets in the final state. eps, 2190kB png, 1764kB
Figure 4: Event display of one monophoton candidate with ETmiss = 446.9 GeV, phi-ETmiss = 2.55 radians, a photon with pt = 449.7 GeV, eta-gamma = -0.51, phi-gamma = -0.65 radians, and no jets in the final state. eps, 3483kB png, 2407kB

Search for displaced muonic lepton jets from light Higgs boson decay in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector (26 September 2012)

Additional auxiliary plots
Figure 8a: 3D view of a Higgs decay into two gamma_{d}--> mu+ mu- from Monte Carlo simulation. The muon energy loss in the calorimeters and the RPC hits in the muon spectrometer are clearly visible. png, 1123kB

Search for Supersymmetry in Events with Large Missing Transverse Momentum, Jets, and at Least One Tau Lepton in 7 TeV Proton-Proton Collision Data with the ATLAS Detector (3 October 2012)

Additional auxiliary plots
Figure 13: An event selected in the onetau channel. The pT of the leading and sub-leading jets are 592 GeV (red) and 86 GeV (green) respectively. The selected tau pT is 32 GeV (orange spike in prolongation of jet axis). MET is 478 GeV (red arrow). eps, 955kB png, 2603kB
Figure 14: An event selected in the onetau channel. The pT of the leading and sub-leading jets are 372 GeV (red) and 124 GeV (green) respectively. The selected tau pT is 66 GeV (orange spike in prolongation of jet axis). MET is 324 GeV (red arrow). eps, 950kB png, 2550kB
Figure 15: An event selected in the onetau channel. The pT of the leading and sub-leading jets are 341 GeV (red) and 212 GeV (green) respectively. The selected tau pT is 109 GeV (orange spike in prolongation of jet axis). MET is 577 GeV (red arrow). eps, 598kB png, 2533kB
Figure 16: An event selected in the onetau channel. The pT of the leading and sub-leading jets are 386 GeV (red) and 188 GeV (green) respectively. The selected tau pT is 266 GeV (orange spike in prolongation of jet axis). MET is 300 GeV (red arrow). eps, 614kB png, 2524kB
Figure 17: An event selected in the twotau channel. The pT of the leading and sub-leading jets are 466 GeV (red) and 131 GeV (light blue) respectively. The pT of the leading and sub-leading taus are 129 GeV and 22 GeV (orange spikes in prolongation of jet axes) respectively. MET is 452 GeV (red arrow). eps, 1735kB png, 2706kB
Figure 18: An event selected in the taumu channel. The pT of the leading and sub-leading jets are 1074 GeV (red) and 1044 GeV (green) respectively. The tau (orange spike in prolongation of jet axis) has a pT of 37 GeV and the muon (track passing through spectrometer) a pT of 164 GeV. MET is 99 GeV (red arrow). eps, 973kB png, 2347kB
Figure 19: An event selected in the taue channel. The pT of the leading and sub-leading jets are 548 GeV (red) and 448 GeV (green) respectively. The tau (orange spike in prolongation of jet axis) has a pT of 22 GeV and the electron (yellow spike) 90 GeV. MET is 68 GeV (red arrow). eps, 1664kB png, 2848kB

Search for dark matter candidates and large extra dimensions in events with a jet and missing transverse momentum with the ATLAS detector (16 October 2012)

Additional auxiliary plots
Figure 10: Display of an event with 542 GeV met and a single jet with 551 GeV pt. There is no additional jet above 30 GeV in the event. eps, 7565kB png, 3310kB

Search for anomalous production of prompt like-sign lepton pairs at √s=7 TeV with the ATLAS detector (16 October 2012)

Additional auxiliary plots
Figure 27: Event display of the ee event with the highest invariant mass (589 GeV). The high-mass same-sign electron tracks are shown in red. The leading electron has an ET of 196 GeV, (η, φ) of (1.31, -1.86), and charge +1. The subleading electron has an ET of 50 GeV, (η, φ) of (-2.25, 2.73), and charge +1. There is a third electron (shown as a blue track) with an ET of 35 GeV, (η, φ) of (-0.54, 1.73), and charge -1. There are two reconstructed jets. The leading jet has a pT of 207 GeV and (η, φ) of (0.59, 1.49), and the subleading jet has a pT of 30 GeV and (η, φ) of (1.14, 1.45). The missing transverse energy (shown as a green arrow) is 9 GeV with φ of -1.05. eps, 1205kB png, 1694kB
Figure 28: Event display of the μμ event with the highest invariant mass (522 GeV). The muon tracks are shown in blue and red, with the high mass like-sign pair having red tracks. The leading muon has a pT of 486 GeV, (η, φ) of (0.13, -3.04), and charge +1. The subleading muon has a pT of 79 GeV, (η, φ) of (-1.73, -1.23), and charge +1. There is a third muon (shown as a blue track) with a pT of 32 GeV, (η, φ) of (-1.41, 2.70), and charge -1. There are two reconstructed jets. The leading jet has a pT of 394 GeV and (η, φ) of (-0.64, 0.17), and the subleading jet has a pT of 27 GeV and (η, φ) of (1.16, 0.15). The missing transverse energy, shown as a green arrow, is 93 GeV with φ of 0.22. eps, 1134kB png, 1971kB
Figure 29: Event display of the eμ event with the highest invariant mass (464 GeV). The muon and electron tracks of the high mass pair are shown in red. The muon has a pT of 212 GeV, (η, φ) of (0.68, -1.24), and charge +1. The electron has a pT of 161 GeV, (η, φ) of (2.11, 2.26), and charge +1. There is a second electron candidate shown in blue with pT of 86 GeV, (η, φ) of (1.87, 1.54) and a charge of -1. No high pT jets are reconstructed. The missing transverse energy, shown as a green arrow, is 16 GeV with φ of -0.26. eps, 739kB png, 1212kB

Search for Extra Dimensions in diphoton events using proton-proton collisions recorded at sqrt(s) = 7 TeV with the ATLAS detector at the LHC (30 October 2012)

Additional auxiliary plots
Figure 5: Event display of the highest-mass diphoton event. Event information: Run and event numbers = 191715, 37274906. Invariant mass = 1.59 TeV, Leading photon Et, eta, phi, Isolation = 787 GeV, 1.29, 1.69, 2.66 GeV. Subleading photon Et, eta, phi, Isolation = 760GeV, 1.02, -1.46, 2.54GeV. Both photons are converted. eps, 4844kB png, 2206kB
Figure 6: Event display of the second-highest-mass diphoton event. Event information: Run and event numbers = 186934, 4101410. Invariant mass = 1.48 TeV, Leading photon Et, eta, phi, Iso = 508 GeV, -1.60, -0.58, 1.19GeV. Subleading photon Et, eta, phi, Iso = 471 GeV, 0.34, 2.58, 1.86 GeV. Both photons are converted. eps, 6632kB png, 1726kB

Responsible: Main.ManuellaVincter
Subject: public