My working group
You can find an up-to-date version of my CV under this link . At KIT I'm working in the field of particle physics, also called high energy physics, since it generally involves particle collisions at highest available eneries at particle colliders. The particle collider I am currently working with is the Large Hadron Collider (LHC) at CERN. With my working group I am analysing the data created in proton proton collisions at center of mass energies between 7 and 13 TeV. KIT is a member institute of the CMS collaboration.My group is part of the larger analysis and working group of Prof. Günter Quast. Currently it comprises four Ph.D. students and several master and bachelor students. You can usually find the completed theses of my students as part of the theses uploaded to the ETP document server. We are located on the 8th and 9th floor of building 30.23 ("Physikhochhaus").
The group is involved in the analysis of Higgs bosons in the di-τ final state. The discovery of a Higgs boson like particle at the LHC in 2012 has lead to the grant of the Nobel Prize in Physics to Peter Higgs and Francois Englert. A second large physics event in the field was the confirmation of the coupling of the new particle as expected for a SM Higgs boson to fermions in 2014. This was achieved by the evidence of the decay of the new particle into τ-leptons. On the LHC run-2 dataset of the year 2016 this evidence has been confirmed in the meantime by a clear observation with a statistical significance corresponding to more than five standard deviations.
Publications
From 2003 till 2006 I was member of the H1 collaboration at DESY. With the H1 collaboration I am author of 38 publications in peer reviewed journals. Since 2006 I am member of the CMS collaboration. With the CMS collaboration I am author of more than 500 publications in peer reviewed journals. The following link points you to the physics publications of CMS. Since this is a regularly asked question: my H-index is 135 (09/2018). In the following I am listing my most recent and to my opinion most important publications. Listed are only those publications of which I am main author or to which I have made essential contributions. The listing is in chronological order:|
CMS Collaboration, Searches for Higgs boson production through decays of heavy resonances, submitted to Physics Reports.
(arXiv:2403.16926).
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E. Pfeffer, M. Wassmer, Y. Cung, R. Wolf, U. Husemann, A case study of sending graph neural networks back to the test bench for applications in high-energy particle physics, Comput. Softw. Big Sci. 8, (2024) 13.
(arXiv:2402.17386).
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CMS Collaboration, Searches for additional Higgs bosons and for vector leptoquarks in tau tau final states in proton-proton collisions at sqrt(s) = 13 TeV, Journal of High Energy Physics 07 (2023) 73.
(arXiv:2208.02717).
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CMS Collaboration, A portrait of the Higgs boson by the CMS experiment ten years after the discovery, Nature 607 (2022) 60.
(arXiv:2207.00043).
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CMS Collaboration, Measurements of Higgs boson production in the decay channel with a pair of tau leptons in proton-proton collisions as sqrt(s)=13 TeV, European Physics Journal C 83 (2023) 562.
(arXiv:2204.12957).
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CMS Collaboration, Identification of hadronic tau lepton decays using a deep neural network, JINST 17 (2022) P07023.
(arXiv:2201.08458).
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CMS Collaboration, Search for a heavy Higgs boson decaying into two lighter Higgs bosons in the tau tau b b final state at 13 TeV, Journal of High Energy Physics 11 (2021) 57.
(arXiv:2106.10361).
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S. Wunsch, S. Jörger, R. Wolf, G. Quast, Optimal statistical inference in the presence of systematic uncertainties using neural network optimization based on binned Poisson likelihoods with nuisance parameters, Comput. Softw. Big Sci. 5 (2021) 4.
(arXiv:2003.07186).
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S. Wunsch, S. Jörger, R. Wolf, G. Quast, Reducing the dependence of the neural network function to systematic uncertainties in the input space, Comput. Softw. Big Sci. 4 (2020) 5.
(arXiv:1907.11674).
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CMS Collaboration, An embedding technique to determine tau tau backgrounds in proton-proton collision data, JINST 14 (2019) P06032.
(arXiv:1903.01216).
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S. Wunsch, R. Friese, R. Wolf, G. Quast, Identifying the relevant dependencies of the neural network response on characteristics of the input space, Comput. Softw. Big Sci. 2 (2018) 5.
(arXiv:1803.08782).
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CMS Collaboration, Search for additional neutral MSSM Higgs bosons in the tau tau final state in proton-ptoron collisions at √s=13 TeV, Journal of High Energy Physics 09 (2018) 7.
(arXiv:1803.06553) (100+ citations).
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CMS Collaboration, Measurement of the Z to tau tau cross section in pp collisions at √s=13 TeV
and validation of tau lepton analysis techniques, European Physics Journal C 78 (2018) 708.
(arXiv:1801.03535).
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CMS Collaboration, Observation of the Higgs boson decay to a pair of tau leptons, Phys. Lett. B779 (2018) 283-316.
(arXiv:1708.00373) (100+ citations).
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R. Wolf, The Higgs Boson Discovery at the Large Hadron Collider, Springer Tracts of
modern Physics Volume 264 (2015),
187p ISBN 978-3-319-18511-8, DOI 10.1007/978-3-319-18512-5
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CMS Collaboration, Search for neutral MSSM Higgs bosons decaying to a pair of tau leptons
in pp collisions, Journal of High Energy Physics 1410 (2014) 160.
(arXiv:1408.3316) (250+ citations).
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CMS Collaboration, Evidence for the direct decay of the 125 GeV Higgs boson to fermions,
Nature Phys. 10 (2014).
(arXiv:1401.6527) (100+ citations).
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CMS Collaboration, Evidence for the 125 GeV Higgs boson decaying to a pair of tau leptons,
Journal of High Energy Physics 1405 (2014) 104.
(arXiv:1401.5041) (250+ citations).
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CMS Collaboration, Observation of a new boson at a mass of 125 GeV with the CMS experiment
at the LHC, Phys. Lett. B 716 (2012), 30-61.
(arXiv:1207.7335) (1000+ citations).
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CMS Collaboration, Search for neutral Higgs bosons decaying to tau pairs in pp collisions
at √s=7TeV, Phys. Rev. Lett. B713 (2012) 68-90.
(arXiv:1202.4083) (250+ citations).
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