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I am a PhD student in Physics at NYU working with Kyle Cranmer. I just returned to New York from a year at CERN. Feel free to contact me at sk@svenkreiss.com.

I write code for the statistical analysis tool RooStats which is part of CERN's Root Data Analysis tool. My ATLAS work is focused on the MET trigger, the H→ZZ*→4l analysis and the Higgs Combination.

March 5, 2013: New York Times - Chasing the Higgs

Read the full story at: www.nytimes.com

Science section title page

My part of the story

"Higgs Boson"-like Discovery

I am proud to say that I contributed to the ATLAS Higgs Combination and the H→ZZ*→4l analyses in addition to having worked on the statistics tools that were used by ATLAS and CMS. The claim is the discovery of a new particle in the search for the Higgs Boson. Whether it really is the Higgs Boson will be shown in future analyses.

Here is the presentation from July 4, 2012:
http://indico.cern.ch/conferenceDisplay.py?confId=197461

Signal strenth (μ) for the H→ZZ*→llll channel.

Λ(μ,mH) contours for H→ZZ*→llll and H→γγ.

What I do in Pictures

2D slice (θ*,Φ) through the five dimensional angular distribution function of a spin-2 resonance decaying to four leptons.

The ATLAS Collaboration. An update of combined measurements of the new Higgs-like boson with high mass resolution channels. ATLAS-CONF-2012-170. This plot was also mentioned here.

The ATLAS Collaboration. Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC. CERN-PH-EP-2012-218, Phys.Lett. B716 (2012) 1-29, http://arxiv.org/abs/arXiv:1207.7214. This plot was mentioned many times, for example here.

The ATLAS collaboration. Measurement of the top quark pair production cross-section with ATLAS in pp collisions at √s = 7 TeV. http://arxiv.org/abs/1012.1792

Nummer4

VideoSchalter

Selected Publications

• 12/2012: The ATLAS Collaboration. A Particle Consistent with the Higgs Boson Observed with the ATLAS Detector at the Large Hadron Collider. Science, vol 338, issue 6114, 1576-1582
• 07/2012: The ATLAS Collaboration. Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC. CERN-PH-EP-2012-218, Phys.Lett. B716 (2012) 1-29, http://arxiv.org/abs/arXiv:1207.7214
• 07/2012: The ATLAS Collaboration. Combined search for the Standard Model Higgs boson in pp collisions at √s = 7 TeV with the ATLAS detector. CERN-PH-EP-2012-167, http://arxiv.org/abs/arXiv:1207.0319
• 02/2012: The ATLAS collaboration. Combined search for the Standard Model Higgs boson using up to 4.9 fb⁻¹ of pp collision data at √s = 7 TeV with the ATLAS detector at the LHC. Phys.Lett. B710 (2012) 49-66, http://arxiv.org/abs/1202.1408
• 12/2010: The ATLAS collaboration. Measurement of the top quark pair production cross-section with ATLAS in pp collisions at √s = 7 TeV. Eur.Phys.J.C71:1577,2011, http://arxiv.org/abs/1012.1792
• 10/2010: L. Moneta, K. Belasco, K.S. Cranmer, S. Kreiss, A. Lazzaro, et al. The RooStats Project. PoS (ACAT2010) 057.
• 03/2008: M.M. Nojiri et al. Physics Beyond the Standard Model: Supersymmetry. SUSY working group report: Les Houches 2007. http://arxiv.org/abs/0802.3672
• 01/2008: B.C. Allanach et al. SUSY Les Houches Accord 2. CPC 180 (2009) 1, http://arxiv.org/abs/0801.0045

On Inspire.

Selected Talks

• 01/2013: H→ZZ*→4l Likelihood in ATLAS, Likelihoods for the LHC Searches, CERN, Conference Indico, PDF
• 10/2012: Standard Model Higgs Combination and Properties, LHC Days 2012, Split, Croatia, ATL-PHYS-SLIDE-2012-609
• 05/2012: RooStats: Statistical Tools for the LHC, CHEP 2012, New York, Slides