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Research Group "HEPHY - Forschungsprojekt CMS Physics"
(Dipl.-Ing. Wolfgang Adam)

Head of the research group:
Last name:Adam
First name(s):Wolfgang
Institution:Austrian Academy of Sciences
Organizational unit:Institut für Hochenergiephysik (HEPHY)
Street address:Nikolsdorfer Gasse 18
Postal code:1050
Assignments to Research Areas:
Research area(s):
  • High Energy Physics
  • Nuclear and Particle Physics
Assignments to Fields of Work According to the Austrian System of Science Areas:
Field(s) of work:
  • Experimental physics (103008)
  • High energy physics (103012)
  • Particle physics (103034)
Data Acquisition:
Date of the data acquisition:31.05.2012
Data acquisition period:from: 2007   up to including: 2011
Research Group at the Time of the Data Acquisition:
Scientific group members:
16 Persons
Wolfgang Adam
Ilse Krätschmer
Christian W. Fabjan
Vasile-Mihai Ghete
Natascha Hörmann
Manfred Jeitler
Wolfgang Kiesenhofer
Valentin Knünz
Dietrich Liko
Ivan Mikulec
Herbert Rohringer
Robert Schöfbeck
Josef Strauss
Christine Rohringer
Wolfgang Waltenberger
Claudia-Elisabeth Wulz
Full-time equivalents:8
Scientific Output in the Above Data Acquisition Period:
H-index of the group head:60
Number of publications:104
Five most important publications:
  1. CMS Collaboration (V.Khachatryan et al), "Observation of Long-Range, Near-Side Angular Correlations in Proton-Proton Collisions at the LHC", J. High Energy Phys. 09 (2010) 091.
  2. CMS Collaboration (V.Khachatryan et al), "Combined results of searches for the standard model Higgs boson in pp collisions at sqrt(s) = 7 TeV. ", Phys.Lett. B710 (2012) 26-48
  3. CMS Collaboration (S. Chatrchyan et al.), "Search for supersymmetry in pp collisions at sqrt(s)=7 TeV in events with a single lepton, jets, and missing transverse momentum", JHEP 1108 (2011) 156
  4. CMS Collaboration (V. Khachatryan et al.), "Transverse-Momentum and Pseudorapidity Distributions of Charged Hadrons in pp Collisions at ?s = 0.9 and 2.36 TeV", JHEP 02 (2010) 041.
  5. CMS Collaboration (G.L.Bayatian et al.), "CMS Physics Technical Design Report, Volume II: Physics Performance", J. Phys. G: Nucl. Part. Phys. 34 (2007) 995-1579.
  • Fabjan, Christian W., Österreichisches Ehrenkreuz für Wissenschaft und Kunst I. Klasse, Juni 2009
  • Liko, Dietrich, Anerkennungspreis für Wissenschaft des Landes Niederösterreich, November 2009
Five most important talks:
  1. R. Schöfbeck, "Searches for Supersymmetry at CMS", invited talk, LHEP2010, Nanning, China, 2010.
  2. M. Jeitler, "The CMS experiment: status, performance and selected results",
    invited talk, Protvino, Russia, 2010.
  3. W. Adam, "Overview of recent physics results from CMS",
    plenary talk, Time&Matter2010, Budva, Montenegro, 2010.
  4. W. Adam, "Quarkonia studies at CMS", invited talk, EXA2011, Vienna, Austria, 2011.
  5. W. Waltenberger, "CMS SUSY searches - interpretation in terms of simplified models", Brookhaven Forum 2011: A First Glimpse of the Tera Scale. Brookhaven, USA, 2011.
Projects and Funding Granted in the Above Data Acquisition Period:
Competitive projects:
  • Das Tier-2 Rechenzentrum am HEPHY für die Auswertung von CMS Daten wird direkt vom Bundesministerium für Wissenschaft und Forschung gefördert.
  • FWF Einzelprojekt: Messung der Polarisation von Quarkonia am LHC
Research Topics:
Current research topics:
  • Physics Beyond the Standard Model (BSM):
    Topological search for evidence for supersymmetry in events with leptons, jets and missing energy; first results with an integrated luminosity of 5 fb^(-1). Reduction of model dependence using on-shell effective theories in the design and the interpretation of BSM searches.
  • QCD:
    Study of the production and polarization of quarkonia (J/Psi, Upsilon and their excited states) in their decays to muons. Development of specific triggers to increase acceptance for J/Psi at low momentum.
  • CMS Data Taking:
    Shifts, data quality monitoring; also remotely from HEPHY.
  • CMS Detector Performance Analysis :
    Leadership of the b-jet (-2010) and muon identification (2010-) groups ; analysis of jet and missing energy reconstruction in view of their application in BSM searches; analysis of vertex and track reconstruction performance.
Future topics (next 5 years):
  • Physics Beyond the Standard Model (BSM):
    Using the first years of LHC data the reach of existing experiments has been equaled or exceeded. For the next years the amount of proton-proton collision data available for analysis will increase by several orders of magnitude, extending sensitivity far beyond current direct limits and opening the window for discovery. The search for supersymmetry will be pursued in more exclusive decay channels with special attention on the production of 3rd generation fermions. If a signal for BSM is found the combination of these analyses will help to clarify the nature of the excess and the mass scales involved.
  • QCD:
    The analysis of quarkonia polarization will be continued with special focus on excited states and on the effects of states produced in decay chains. The analysis techniques developed for proton-proton collisions and the corresponding results can also serve as an indispensable reference for using quarkonia to probe the Quark-Gluon Plasma in heavy ion collisions.
  • Analysis of Detector Performance:
    The increasing intensities at the LHC constitute a challenge for the reconstruction of physics objects in the CMS detector. The involvement in the measurement and improvement of the detector performance will continue by assuming leading roles in the corresponding working groups.
Teaching and Research Mobility in the Above Data Acquisition Period:
Diploma and master theses:
4 theses
  1. G. Kasieczka: "Early SUSY searches at the CMS experiment at CERN", Vienna University of Technology (2009)
  2. C. Thomay: "Überprüfung und Kalibrierung der Vertexrekonstruktion mit ersten CMS Daten", University of Vienna (2011)
  3. M. Dünser: " Search for supersymmetry with the CMS detector at the LHC", Vienna University of Technology (2011)
  4. V. Knünz: "Measurement of J/Psi polarization with the CMS
    experiment in proton-proton collisions at sqrt(s) =7 TeV", Vienna University of Technology (2011)
International networking:
  • Searches for new physics: direkte Zusammenarbeit mit 9 Institutionen in Europa, Asien und den USA
  • QCD: direkte Zusammenarbeit mit 3 Institutionen in Europa und den USA
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