Elliot Lipeles


Elliot Lipeles
email lipeles -at- hep.upenn.edu
phone 215/573-7036
fax  
lab phone 215/573-3652
room 4N43 DRL (office) and 1W25 (lab)
links http://www.hep.upenn.edu/
degree Ph.D., California Institute of Technology 2004
B.A., University of Chicago, 1995
keywords Experimental Particle Physics
overview

One of the largest outstanding questions in particle physics is what breaks the symmetry between the weak and electromagnetic forces. In the standard model of particle physics the Higgs boson breaks the symmetry, but it has not yet been observed and may not be the true actor. The focus of my research is to search for the Higgs boson and possible new processes in high-energy hadron collisions. This work was started as part of the CDF experiment at the Fermilab Tevatron and is currently being continued as part of the ATLAS experiment at the Large Hadron Collider (LHC) at CERN. The LHC presents a major scientific opportunity, because it should have sufficient energy and intensity to either confirm or exclude the existence of a standard model Higgs boson.

In addition to the Higgs and electroweak symmetry breaking, the LHC may produce clues to many other unanswered questions such as:

  • How are gravity and quantum mechanics are reconciled?
  • How is the observed matter-antimatter asymmetry of the universe generated?
  • What is dark matter?
  • If the Higgs exists, what prevents quantum corrections from causing its mass to diverge?

Also as part of participating in the ATLAS experiment, I work on the online data selection system (trigger), including innovations for a the planned LHC and ATLAS upgrade.
honors Alfred P. Sloan Foundation Research Fellowship (2010)
positions  
select pubs

1. G. Aad et al. [ATLAS Collaboration], 'Measurement of the W+W- Cross Section in √s=7 TeV pp Collisions with ATLAS', Phys. Rev. Lett. 107, 041802 (2011), [arXiv:hep-ex/1104.5225].
2. T. Aaltonen et al. [CDF Collaboration], "Measurement of the W+W- Production Cross Section and Search for Anomalous WWγ and WWZ Couplings in pp Collisions at √s = 1.96 TeV," Phys. Rev. Lett. 104, 201801 (2010), [arXiv:hep-ex/0912.4500].
3. T. Aaltonen et al. [CDF Collaboration], "Search for WW and WZ production in lepton plus jets final state at CDF," Phys. Rev. D 79, 112011 (2009), [arXiv:hep-ex/0903.0814].
4. T. Aaltonen et al. [CDF Collaboration], "Search for a Higgs Boson Decaying to Two W Bosons at CDF," Phys. Rev. Lett. 102, 021802 (2009), [arXiv:hep-ex/0809.3930].
5. T. Aaltonen et al. [CDF Collaboration], "First Measurement of ZZ Production in ppbar Collisions at √s=1.96 TeV," Phys. Rev. Lett. 100, 201801 (2008), [arXiv:hep-ex/0801.4806 ].
6. A. Abulencia et al. [CDF Collaboration], "Observation of WZ Production," Phys. Rev. Lett. 98, 161801 (2007), [arXiv:hep-ex/0702027].
6. A. Abulencia et al. [CDF Collaboration], "Measurement of the Λb0 lifetime in Λb0 → J/ψ Λ0 in p anti-p collisions at √s= 1.96-TeV," Phys. Rev. Lett. 98, 122001 (2007), [arXiv:hep-ex/0609021].
7. S. E. Csorna et al. [CLEO Collaboration], "Moments of the B meson inclusive semileptonic decay rate using neutrino reconstruction," Phys. Rev. D 70, 032002 (2004), [arXiv:hep-ex/0403052].
8. M. Artuso et al., "Performance of the CLEO III LiF-TEA ring imaging Cherenkov detector in a high energy muon beam," Nucl. Instrum. Meth. A 441, 374 (2000), [arXiv:hep-ex/9910054].