Research (Keywords)

Electron-Positron collisions at LEP (ALEPH experiment) at CERN: precision measurements of strong and electro-weak interactions, measurements of the strong coupling constant, the QCD colour factors and the b-quark mass. Proton-Antiproton collisions at the TEVATRON (CDF experiment) at FERMILAB: luminosity measurement via Z boson counting, measurement of the shapes of b-quark jets. Proton-Proton collisions at LHC (CMS experiment) at CERN: preparation for the tests of the Standard Model and searches for new physics, in particular precision measurements of the Drell-Yan W and Z production and searches for the Higgs boson. Detector technologies: crystal calorimeter, photo detectors, silicon detectors, detector control system.

Collaborators (Status Jan 2007):
PhD students : A. Nardulli, C. Marchica, P. Milenovic, T. Punz, F. Stöckli, M. Weber
Postdocs : F. Moortgat, J. Weng
Senior Physicists : W. Lustermann
Scientific Visitors : S. Zelepoukine, G. Leshev, A. Brett
In addition : A very close and strong collaboration with all members of the group of Prof. F. Pauss.

Main activities since 2001

• Analyses of data taken with the ALEPH, L3 (his group members) and CDF experiments. Tests of Quantum Chromodynamics and measurements of vector boson production.
• Preparation of the CMS experiment at LHC: construction of the electromagnetic crystal calorimeter (ECAL), in particular project leader for the ECAL detector control system (hardware and software); Test-beam studies of ECAL (Run Coordinator and data analysis); preparation of physics studies with CMS, in particular Standard Model and Higgs Physics. Convener of the JetMET physics object group. Close collaboration with theoretical physicists for the study of higher order perturbative QCD corrections to LHC processes.
• Since 2002, member of the SIAM collaboration: development and characterization of novel pixel detectors, based on the deposition of hydrogenated amorphous silicon on ASICs (TFA technology).

Future priority research areas

• The main priority is the CMS experiment at LHC: completion of the detector construction, followed by data taking (presently foreseen to start in 2007) and physics exploitation.
• Detector R&D: research on novel charged particle and photo detectors, based on the deposition of hydrogenated amorphous silicon on ASICs, with possible applications in the field of medical imaging.
• Long term: possible participation in a future experiment at the International Linear Collider.
  

Ten recent key publications (since 2001)

1. G. Dissertori, I.K. Knowles, M. Schmelling, Quantum Chromodynamics: High energy experiments and theory, International Series of Monographs on Physics No. 115, ISBN 0198505728, Oxford University Press, Feb. 2003. Reprinted in 2005.
2. A. Heister et al. (ALEPH Collaboration), Measurements of the strong coupling constant and the QCD colour factors using four-jet observables from hadronic Z decays, Eur. Phys.J. C27 (2003) 1.
3. F. Stöckli, A.G. Holzner and G. Dissertori, Study of perturbative QCD predictions at next-to-leading order and beyond for pp to H to gamma/gamma + X, JHEP 0510:079, 2005; also HEP preprint arXiv:hep-ph/0509130.
4. G. Davatz. G. Dissertori, M. Dittmar, M. Grazzini and F. Pauss, Effective K-Factors for gg to H to WW to lnulnu at the LHC, JHEP 0405:009, 2004; also HEP preprint arXiv:hep-ph/0402218.
5. G. Dissertori, LHC expectations (machine, detectors and physics), invited plenary talk, Proceedings of the International Europhysics Conference on High Energy Physics (HEP-EPS 2005), Lisbon, Portugal, 21-27 Jul 2005; also HEP preprint arXiv:hep-ex/0512007.
6. G. Dissertori, Electromagnetic Calorimetry and e/gamma Performance in CMS, Eur. Phys. J. C 34, s01 (2004) 85.
7. P. Milenovic, J. Puzovic, D. Jovanovic, D. Maletic, G. Dissertori, P. Adzic, Performance of the CMS ECAL safety system for Super Modules SM0 and SM1, Nucl. Instrum. and Meth. A 554 (2005) 427.
8. P. Adzic et al., The CMS Electromagnetic Calorimeter Group, Results of the first performance tests of the CMS electromagnetic calorimeter, Eur. Phys. J. C 44, Suppl. 2 (2006) 1.
9. P. Adzic, F. Beaudette, G. Dissertori, R. Gomez-Reino Garrido, A. Lister, P. Milenovic, R. Ofierzynski, J. Puzovic, A. Sytin, S. Zelepoukine, The Detector Control System of the Electromagnetic Calorimeter of the CMS experiment at the LHC, to appear in the Proceedings of the International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS) 2005, Geneva, Switzerland.
10. N. Wyrsch et al., Thin-film silicon detectors for particle detection, Phys. Stat. Sol. (c) 1, No. 5, (2004) 1284.

See also the full Publication List (Status Sep 09).

Recent talks

1. Prospects for Higgs searches at the LHC, invited talk at the 3rd Vienna Central European Seminar on Particle Physics and Quantum Field Theory, Vienna, Dec 2006.
2. Prospects for measuring hard processes the LHC, invited talk at the HP2 Workshop, Zurich, Switzerland, Sep 2006 (also given at DESY Hamburg and Zeuthen in Nov 2006).
3. Getting ready for the LHC, invited talk at the LHC Olympics Workshop, CERN, Geneva, Switzerland, Feb 2006 (similar talk given at PSI Villigen, Apr 2006, at the Planck06 conference in Paris, May 06, in Catania and at the Galileo Galilei Institute, Florence, Jun 2006)
4. LHC preparations: Machine, Detectors and Physics, invited talk at the Particle Physics Seminar, University and ETH Zurich, Jan. 2006.
5. LHC: Status Quo e Prospettive, invited talk at the Colloquium of the Physics Department, University of Florence, Italy, Nov. 2005.
6. LHC : The machine, the detectors and the physics, invited plenary talk at the International Conference on High Energy Physics, Lisbon, July 2005.
7. Crystal Calorimetry at LHC, lecture in the CERN Academic Training programme, CERN, Geneva, Switzerland, March 2005.
8. The strong coupling constant: An experimentalist’s review, invited talk at the 9th Itzkyson Meeting : Frontiers in QCD, Saclay, France, June 2004.
9. Issues in Standard Model and Higgs Physics as seen by a CMS experimentalist, Collider Physics Conference, Kavli Institute for Theoretical Physics, UCLA, Santa Barbara, USA, Jan. 2004.
10. Research Oriented Teaching of Particle Physics, invited talk at the MPTL 9 workshop, (Multimedia in Physics Teaching and Learning), Graz, Austria, Sept. 2004.