Institut für Theoretische Physik
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Institute for Theoretical Physics (ITP)
Institute for Theoretical Physics (ITP)
Institute for Theoretical Physics (ITP)
Research Groups at the Institute for Theoretical Physics
Research Group of Prof. Dr. Gudrun Heinrich

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research:heinrich [2020/07/16 20:33] – sophieresearch:heinrich [2025/10/02 09:44] (current) – [Research Group of Prof. Dr. Gudrun Heinrich] gudrun
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-====== Research Group of Prof. Dr. Gudrun Heinrich ======+ ====== Research Group of Prof. Dr. Gudrun Heinrich ====== 
 +\\ 
 +Jens Braun, Benjamin Campillo Aveleira, Dr. Bakar Chargeishvili, Dr. Marius Höfer, Dr. Matthias Kerner, Anton Olsson, Philipp Rendler, Augustin Vestner
  
 ===== General research field ===== ===== General research field =====
-Precision calculations and their applications to Collider Physics+Precision calculations and their applications to Collider Physics, Effective Field Theories to parametrise physics beyond the Standard Model, mathematical aspects of scattering amplitudes. 
 + 
 +List of publications: [[https://inspirehep.net/author/profile/Gudrun.Heinrich.1| iNSPIRE]].
  
 ===== Topics ===== ===== Topics =====
- +==== Higgs physics ==== 
-  * Higgs physics: +  * shedding light on the Higgs potential through Higgs boson pair production 
-  - shedding light on the Higgs potential through Higgs boson pair production +  *   study of anomalous couplings in the Higgs sector within Effective Field Theory 
-  - study of anomalous couplings in the Higgs sector within Effective Field Theory +  *  higher order corrections in the Higgs sector 
-  - higher order corrections in the Higgs sector +  *  Monte Carlo programs for precision phenomenology 
-  - Monte Carlo programs for precision phenomenology +\\
 <HTML> <HTML>
-<img style="width:50%;" id="image" src="https://www.itp.kit.edu/_media/research/HH_diagrams.png">+<img style="width:45%;" id="image" src="https://www.itp.kit.edu/_media/research/bp6_mueft_dependence.png"> 
 +<img style="width:49%;" id="image" src="https://www.itp.kit.edu/_media/research/HH_diagrams.png">
 </HTML> </HTML>
- +\\ 
-<HTML> +==== Heavy quarks and the Higgs boson ==== 
-<img style="width:50%;" id="image" src="https://www.itp.kit.edu/_media/research/mHH_anomalous_couplings.png"> +  * higher order perturbative calculations 
-</HTML> +  * hints of physics beyond the Standard Model in the top-Higgs sector 
- +\\ 
-   * Heavy quarks and the Higgs boson +==== Development of novel methods for precision calculations ==== 
-   - higher order perturbative calculations +  *  automation of two-loop amplitude calculations 
-   - hints of physics beyond the Standard Model in the top-Higgs sector +  * calculation of multi-loop Feynman diagrams 
- +  * mathematical aspects of Feynman diagrams 
-   * Development of novel methods for precision calculations +  * application of machine learning methods to loop amplitudes
-    - automation of two-loop amplitude calculations +
-    - calculation of multi-loop Feynman diagrams +
-    - mathematical aspects of Feynman diagrams +
-  +
 ===== Tools ===== ===== Tools =====
 +==== pySecDec: ====
 +A program to factorize the poles from dimensionally regulated \\ parameter integrals and to evaluate them numerically. It can be used for \\ multi-loop integrals as well as other multi-dimensional parameter integrals.
  
- * pySecDec:  a program to factorize the poles from dimensionally regulated \\ parameter integrals and to evaluate them numerically. It can be used for \\ multi-loop integrals as well as other multi-dimensional parameter integrals.+  * [[https://github.com/secdec-research/secdec/|code]] 
 +  * [[https://pypi.org/project/pySecDec/]] 
 +  * [[https://secdec.readthedocs.io/en/stable/|documentation]] 
 +  * current **pySecDec** collaboration:\\ Bakar Chargeishvili (KIT), Gudrun Heinrich (KIT), Stephen Jones (IPPP Durham), Matthias Kerner (KIT) , Vitaly Magerya (CERN), Anton Olsson (KIT), Johannes Schlenk (Zurich) 
 +  * former members:\\ Sophia Borowka, Jonathon Carter, Stephan Jahn, Andres Poldaru, Emilio Villa, Tom Zirke 
 +\\ 
 +{{:research:pysecdec2023.jpeg?500|}}     {{:research:IMG_9229.jpeg?500|}}
  
-- [[https://github.com/mppmu/secdec/releases|program]] +==== ggHH and ggHH_SMEFT ==== 
- +NLO corrections to Higgs boson pair production with full top quark mass  dependence, including anomalous couplings.\\ 
- +[[https://gitlab.com/POWHEG-BOX/V2/User-Processes]] 
-- [[https://secdec.readthedocs.io/en/stable/|documentation]] + \\ 
- +==== GoSam ==== 
-- current pySecDec collaboration: +A program  to generate and evaluate multi-leg one-loop amplitudes, within and beyond the Standard Model.\\ 
-Gudrun Heinrich, Stephen Jones, Matthias Kerner, \\ Andres Poldaru, Johannes Schlenk, Emilio Villa +New version GoSam-3.0 for SMEFT applications available!\\ 
- + [[https://github.com/gudrunhe/gosam]] 
-- former members: Sophia Borowka, Jonathon Carter, Stephan Jahn, Tom Zirke +\\ 
- +==== golem95 ==== 
- +One-loop library of scalar and tensor integrals (written in Fortran95).\\ 
-* [[http://powhegbox.mib.infn.it//|ggHH]]: +[[https://github.com/gudrunhe/golem95/]]  
-NLO corrections to Higgs boson pair production with full top quark mass \\ dependence, including anomalous couplings +\\ 
-  +==== eerad3 ==== 
-* [[http://gosam.hepforge.org/|GoSam]]:  +Computes the QCD contributions to event shapes and jet rates in 
-a program   +
-to generate and evaluate multi-leg one-loop amplitudes, \\ within and beyond the Standard Model. +
- +
-* [[http://golem.hepforge.org/|golem95]]: +
-one-loop library of scalar and tensor integrals (written in Fortran95). +
- +
-* [[http://eerad3.hepforge.org|eerad3]]: +
-computes the QCD contributions to event shapes and jet rates in \\+
 electron-positron annihilation at parton level to order $\alpha_s^3$. electron-positron annihilation at parton level to order $\alpha_s^3$.
-For three-jet production \\ and related observables, this corresponds to NNLO corrections. +For three-jet production and related observables, this corresponds to NNLO corrections. \\ 
 +[[https://gitlab.com/eerad-team/releases]] 
  
 +===== Information on Bachelor and Master Theses =====
 + {{anchor:thesis}}
 +If you are interested in a Bachelor,  Master or PhD thesis in the field of theoretical particle physics,
 +for example dealing with Higgs bosons or top quarks, performing calculations that help to uncover yet unknown particles or interactions, please contact Gudrun Heinrich [[gudrun.heinrich@kit.edu|via email]].
 +The thesis usually involves work with some computer programs (based mainly on python, for example the program  [[https://github.com/gudrunhe/secdec/releases|pySecDec]]).
 +However, subjects where the focus is more on analytic calculations are also possible.
 +The students will be part of an active and lively research group,
 +comprising also international collaborators.
  
-  +===== Examples for Bachelor thesis topics ===== 
 +   * Untersuchung der Effekte noch unbekannter Teilchen im Rahmen von effektiver Feldtheorie, Anwendung auf Streuprozesse oder Teilchenzerfälle am Large Hadron Collider (LHC)  
 +   * Anwendung neuer Methoden zur Berechnung von Feynman-Integralen 
 +   * Numerische Untersuchung von Feynman-Integralen basierend auf dem Programm [[https://github.com/gudrunhe/secdec/releases|pySecDec]] 
 +   * Untersuchung extremer kinematischer Bereiche (Hochenergie-Limes, kleine Massen, etc.) 
 +   * Untersuchung von Prozessen an zukünftigen Lepton-Beschleunigern 
 +  
  
 +===== Examples for Master thesis topics =====
 +  * Investigation of effects from so far unknown particles/interactions in the framework of Effective Field Theories
 +  * Higgs boson production in association with other particles as a window to New Physics
 +  * Study of multi-loop-integrals involving heavy particles (Higgs bosons, heavy quarks, weak bosons) based on the program [[https://github.com/gudrunhe/secdec/releases|pySecDec]]
 +  * Precision calculations for future lepton colliders
 +  * Investigation of new methods to calculate scattering amplitudes
 +  * Application of machine learning methods to loop amplitudes