Ömer Penek M.Sc.
Ömer Penek M.Sc.
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Education
 2021 PhD in Phyics (Successfully defended in 24th March 2021)
Physics Institute III, RWTH Aachen University
Focus of research:Neutrino Physics and Beta Decay Spectroscopy
Thesis title: Measurement of pp and CNO Cycle Solar Neutrinos with Borexino  2016 M.Sc. in Physics
Physics Institute III, RWTH Aachen University
Focus of Research: Nuclear Physics, Elementary Particle Physics, Astroparticle Physics and Quantum Field Theory
Master Thesis: Calculation of the Cherenkov Light Yield for HighEnergy Particle Cascades  2013 B.Sc. in Physics
Institute for Theory of Statistical Physics
Focus of Research: Quantum Mechanics
Bachelor Thesis: Numerical Solution of the QuantumVlasovEquation in the WignerRepresentation
NEW: Official Member of the Borexino Talk Review Committee
 Officially declared as Talk Review Committee member by the Borexino Institutional Board (one of four members)
 Main Task: Review of Borexino Presentations which are going to be shown at e.g. conferences, workshops, etc.
Solar Neutrino Research
 Analysis of solar neutrino data with Borexino
 Sensitivity and Toy Monte Carlo studies towards measuring neutrinos from the CNO fusion cycle in the Sun
 Significant contributions to the comprehensive measurement of pp chain and CNO cycle solar neutrinos
Beta Spectroscopy of {144}^Pr
 Nuclear Beta Decay Theory
 Geant4 based Monte Carlo Simulations of Decays
 Analysis of decay electrons from a {144}^Ce{144}^Pr beta source to measure the shape factor of {144}^Pr
Development of a vectorized fast fitting environment for Borexino/JUNO Solar Neutrino Analysis
 Spectral Analysis based on Monte Carlo Probability Density Functions
 Fitting of Real and Pseudo Data
 Pseudo Dataset Generation and Fitting in RunTime (without additional need of storage)
 Additional implementations easily possible
 Code Parallelization Possible (OpenAcc, OpenMP)
Further topics
 Statistical testing of composite hypotheses
 Likelihood based fitting (Analytical, Monte Carlo approaches)
 Likelihood Construction Techniques
 Calculation of recoiled electron spectra from neutrinoelectron interactions
 Solar Neutrino Flux Calculations
 Bayesian
Selected Scientific Publications
 M. Agostini et al., Experimental evidence of neutrinos produced in the CNO fusion cycle in the Sun, Nature 587 (2020) p. 577–582.
 M. Agostini et al., Sensitivity to neutrinos from the solar CNO cycle in Borexino, Eur. Phys. Jour. C 80 (2020) 1091.
 M. Agostini et al., "Constraints on FlavorDiagonal NonStandard Neutrino Interactions from Borexino PhaseII", JHEP 2 (2020) 038.
 M. Agostini et al., "First Simultaneous Precision Spectroscopy of pp, ^{7}Be, and pep Solar Neutrinos with Borexino PhaseII", Phys. Rev. D 100 (2019) p. 082 004
 M. Agostini et al., Comprehensive measurement of ppchain solar neutrinos, Nature, 562 (2018) 505510.
 M. G. Aartsen et al., Search for sterile neutrino mixing using three years of IceCube DeepCore data, Phys. Rev. D, 95 (2017) 112002.
 M. G. Aartsen et al., Determining neutrino oscillation parameters from atmospheric muon neutrino disappearance with three years of IceCube DeepCore data, Phys. Rev. D, 91 (2015) 072004.
 M. G. Aartsen et al., Multimessenger Search for Sources of Gravitational Waves and HighEnergy Neutrinos: Results for Initial LIGOVirgo and IceCube, Phys. Rev. D, 90 (2014) 102002.
 M. G. Aartsen et al., Observation of HighEnergy Astrophysical Neutrinos in Three Years of IceCube Data, Phys. Rev. Lett., 113 (2014) 101101.
Selected Conference Contributions
 DPG Spring Meetings, Dortmund, Germany, 2021
Measurement of $pp$ chain and CNO cycle solar neutrinos with Borexino  XIX International Workshop on Neutrino Telescopes, Padova/Venice, Italy (Online), 2021
Sensitivity to CNO cycle solar neutrinos in Borexino  WIN2019. The 27th International Workshop on Weak Interactions and Neutrinos., Bari, Italy, 2019
Measurement of ppchain solar neutrinos with Borexino  DPG Spring Meetings, Aachen, Germany, 2019
Analytical Multivariate Studies in the Borexino Solar Neutrino Analysis  DPG Spring Meetings, Wuerzburg, Germany, 2018
Analytical Multivariate Fit in the Borexino Solar Neutrino Analysis  DPG Spring Meetings, Hamburg, Germany, 2016
Calculation of the Cherenkov Light Yield of HighEnergetic Particle Cascades in IceCube  DPG Spring Meetings, Mainz, Germany, 2014
Calculation of the Cherenkov Light Yield of UltraHighEnergetic Particle Cascades in Ice  Neutrino Conference, Fermilab, Illinois, USA, 2020
Borexino Sensitivity Studies towards Detection of Solar Neutrinos from the CNO Fusion Cycle  PhystatNu Workshop, CERN, Geneva, Switzerland, 2019
Analytical Multivariate Fit and Sensitivity Studies in the Borexino Solar Neutrino Analysis  Borexino 10th Anniversary, L'Aquila, Italy, 2017
Analytical Multivariate Fit with GooStats in the Borexino Solar Neutrino Analysis  Topics of Particle and Underground Physics (TAUP2017), Sudbury, Canada, 2017
Speeding up Multivariate Analysis with Parallel Computing  Imperial College London, England, 2021
Search for NonStandard Neutrino Interactions in Borexino PhaseII  Institute for Nuclear Physics, FZ Juelich, Germany, 2020
First experimental evidence of Neutrinos produced in the CNO fusion cycle in the Sun  University of Strasbourg, France, 2019
Measurement of ppchain solar neutrinos with Borexino and Towards Measuring CNO neutrinos