Hjalte Frellesvig | HiggsTools

Introduction:

I am a Danish national working at the Demokritos institute in Greece as an early stage researcher funded by the HiggsTools Network.

My field of interest is multi-loop computations in gauge theories. Conceptually such a computation may be split into two parts: Expressing the amplitude in terms of a minimal set of Feynman integrals, and the evaluation of said integrals. I am trying to focus on both parts of the calculation.

After joining HiggsTools, I obtained by PhD degree from the University of Copenhagen with a thesis named "Generalized Unitarity Cuts and Integrand Reduction at Higher Loop Orders".

Scientific publications:

1711.09875	The HiggsTools Handbook: Concepts and observables for deciphering the Nature of the Higgs Sector	M. Boggia, J. M. Cruz-Martinez, H. Frellesvig, N. Glover, R. Gomez-Ambrosio, G. Gonella, Y. Haddad, A. Ilnicka, S. Jones, Z. Kassabov, F. Krauss, T. Megy, D. Melini, D. Napoletano, G. Passarino, S. Patel, M. Rodriguez-Vazquez, T. Wolf	ESR1, ESR3, ESR4, ESR5, ESR6, ESR7, ESR8, ESR9, ESR11, ESR12, ESR13, ESR14, ESR16, ESR20, ESR21	ALU-FR, CNRS, DESY, DFTTO, ETH, FOM, NCSR-D, UDUR, UGR	WP2: Predictions and simulations of signal and background WP3: Tools WP1: Interpretation of Data	M1.1.1 Extraction of model-independent results for cross sections times branching ratios in different Higgs search channels M1.1.2 Extraction of model-independent results on the VV to VV cross section M1.1.3 Extending the mass range and coupling range in different Higgs boson search channels M1.2.1 Extraction of constraints on Higgs couplings from fits to all available data; discussion of model dependence M1.2.2 Extraction of information on Higgs spin and CP properties M1.3.1 Constraints on physics beyond the SM, distinction between different models M1.4.1 Review of the current state and future directions in Higgs boson physics M2.1.1 Specialised codes for the SM-like Higgs boson scenario M2.1.2 Better control of theoretical uncertainties for the SM-like Higgs boson scenario M2.2.1 Precision calculations for vector boson scattering M2.2.2 Precision calculations of non-standard Higgs boson scenarios M2.2.3 Standardised description for non-standard Higgs boson interactions M2.2.4 Interpretation of experimental data in the light of M2.2.3 M2.3.1 Validation of key Higgs background processes and evaluation of uncertainties derived from extrapolating them to signal regions M2.3.2 Better control of theoretical uncertainties M2.3.3 Specialised codes for low multiplicity background processes
1701.07356	Cuts of Feynman Integrals in Baikov representation	H. Frellesvig, C.G. Papadopoulos	ESR20	NCSR-D	WP3: Tools	M3.2.1 Automation of NLO calculations
1609.06685	Two-loop planar master integrals for Higgs $\to$ 3 partons with full heavy-quark mass dependence	R. Bonciani, V. Del Duca, H. Frellesvig, J. M. Henn, F. Moriello, V. A. Smirnov	ESR20	NCSR-D	WP2: Predictions and simulations of signal and background	M2.1.1 Specialised codes for the SM-like Higgs boson scenario M2.1.2 Better control of theoretical uncertainties for the SM-like Higgs boson scenario
1609.00148	On the Reduction and Evaluation of Generalized Polylogarithms	H. Frellesvig, D. Tommasini, C. Wever	ESR20	NCSR-D	WP2: Predictions and simulations of signal and background	M2.1.1 Specialised codes for the SM-like Higgs boson scenario
1601.02649	On the reduction of generalized polylogarithms to $\text{Li}_n$ and $\text{Li}_{2,2}$ and on the evaluation thereof	H. Frellesvig, D. Tommasini and C. Wever	ESR20	NCSR-D	WP2: Predictions and simulations of signal and background	M2.1.1 Specialised codes for the SM-like Higgs boson scenario
1505.00567	Next-to-Leading Order QCD Corrections to the Decay Width $H\to Z\gamma$	R. Bonciani, V. Del Duca, H. Frellesvig, J. M. Henn, F. Moriello, V. A. Smirnov	ESR20	NCSR-D	WP2: Predictions and simulations of signal and background	M2.1.1 Specialised codes for the SM-like Higgs boson scenario M2.1.2 Better control of theoretical uncertainties for the SM-like Higgs boson scenario

Higgstools Events:

	Location	Date
HiggsTools Final Network Meeting	IPPP	Monday, September 11, 2017 to Friday, September 15, 2017
Third Annual Meeting and Young Editors School 2017	Torino, Italy	Monday, May 15, 2017 to Saturday, May 20, 2017
HiggsTools Third Young Researchers Meeting	Zeuthen, Germany	Tuesday, October 11, 2016 to Friday, October 14, 2016
HiggsTools Second Annual Meeting	Granada, Spain	Tuesday, April 12, 2016 to Friday, April 15, 2016
HiggsTools Mid Term Review	Helmholtz Association, Brussels	Tuesday, October 20, 2015
HiggsTools Second Young Researchers Meeting	Universite Libre de Bruxelles	Wednesday, October 21, 2015 to Friday, October 23, 2015
HiggsTools First Annual Meeting	Freiburg, Germany	Wednesday, April 15, 2015 to Friday, April 17, 2015
HiggsTools Annual Summer School 2015	Pré Saint-Didier, Italy	Sunday, June 28, 2015 to Saturday, July 04, 2015
HiggsTools First Young Researchers Meeting	Lumley Castle, United Kingdom	Monday, February 16, 2015 to Friday, February 20, 2015

Secondments:

	Host Institution	Start	End
Private	Maplesoft	Monday, February 27, 2017	Friday, May 12, 2017
Academic	ETH	Sunday, January 10, 2016	Saturday, April 02, 2016

Other Events:

	Location	Date
QCD@LHC 2017	Debrecen	Monday, August 28, 2017 - 10:23 to Friday, September 1, 2017 - 11:00
Loops and Legs in Quantum Field Theory 2016	Leipzig, Germany	Sunday, April 24, 2016 - 18:00 to Friday, April 29, 2016 - 14:30
Amplitudes 2015	Zurich, Switzerland	Monday, July 6, 2015 - 08:00 to Friday, July 10, 2015 - 18:00
HOC Tools at NNLO	Athens, Greece	Saturday, January 17, 2015 - 08:00 to Sunday, January 18, 2015 - 18:00
LHC PhenoNet Final Meeting	Berlin, Germany	Monday, November 24, 2014 - 08:00 to Wednesday, November 26, 2014 - 18:00