About me:
I am a PostDoc researcher at the Institute for Theoretical Particle Physics in Karlsruhe Institute of Technology (KIT). I obtained my Doctorate degree from University of Zurich (UZH), and the Master degree from ETH Zurich. My research interests are:
Analytical calculation of multi-loop and -scale Feynman integrals
Scattering amplitudes for higher-order QCD and Electroweak corrections
Collider phenomenology, beyond the Standard Model physics and cosmology
Employment:
PostDoc, Institute for Theoretical Particle Physics, Karlsruhe Institute of Technology, 10/2021 ~ now.
Education:
Dr. sc. nat. in Physics, Physik-Institut, Universität Zürich, 2018 ~ 2021.
M. Sc. in Computational Science and Engineering, Department of Mathematics, ETH Zürich, 2014 ~ 2017.
B. Eng. in Spacecraft Design and Engineering, School of Astronautics, Harbin Institute of Technology, 2010 ~ 2014.
Conference Talks:
Two-loop Electroweak corrections to gg -> HH and gg -> Hg, Higgs 2023, Beijing, 11/2023.
Two-loop Electroweak corrections to gg -> HH, European Physical Society Conference on High Energy Physics (EPS-HEP) 2023, Hamburg, 08/2023.
QCD and leading two-loop Yukawa corrections to gg -> HH, Higgs 2022, Pisa, Italy, 11/2022.
Analytic leading two-loop Yukawa corrections to gg -> HH, Higgs Pair Workshop, Dubrovnik, Croatia, 06/2022.
UV and IR rational terms in two-loop amplitudes, Loops and Legs in QFT, Ettal, Germany, 04/2022.
Two-loop rational terms, RADCOR-LoopFest 2021, Virtual Conference, 05/2021.
Rational terms at two loops, 13th Annual Meeting of Helmholtz Alliance, DESY Hamburg, 11/2019.
Invited Seminar and Workshop Talks:
Analytic two-loop electroweak corrections to 2 -> 2 Higgs boson production, University of Freiburg, Germany, 12/2023.
Analytic expansions of electroweak corrections to gg -> HH and gg -> Hg, Zhejiang Institute of Modern Physics, Zhejiang University, China, 12/2023.
Analytic expansions of electroweak corrections to gg -> HH and gg -> Hg, Institute of Particle and Nuclear Physics, Shandong University, China, 12/2023.
NLO EW corrections to Higgs bosons production in large top-mass limit, Institute for Theoretical Particle Physics, Karlsruhe Institute of Technology, Germany, 11/2023.
NLO electroweak corrections to gg -> HH, Young Scientists Meeting of the CRC TRR 257 Siegen, Germany, 10/2023.
Two-loop Yukawa corrections to Higgs boson pair production in high-energy limit, Institute for Theoretical Particle Physics, Karlsruhe Institute of Technology, Germany, 05/2023.
Two-loop Leading Yukawa corrections to gg->HH, Young Scientists Meeting of the CRC TRR 257, Karlsruhe, Germany, 06/2022.
A first look on combined UV and IR rational terms at two loops, Institute for Theoretical Particle Physics, Karlsruhe Institute of Technology, Germany, 01/2022.
Rational terms at two loops, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing, China, 01/2020.
OpenLoops on-the-fly method in hard and infrared regions, Zhejiang Institute of Modern Physics, Zhejiang University, China, 08/2018.
Journal Publications:
(see also inSPIRE or GoogleScholar)
Precision Higgs Boson and Collider Physics:
with J. Davies, K. Schönwald, M. Steinhauser, Next-to-leading order electroweak corrections to gg -> HH and gg -> gH in the large-mt limit, JHEP 10 (2023) 033. ArXiv: 2308.01355
with J. Davies et al., Higgs Boson Contribution to the Leading Two-Loop Yukawa Corrections to gg -> HH, JHEP 08 (2022) 259. ArXiv: 2207.02587
with X. Chen et al., Top-Quark Mass Effects in H+Jet and H+2 Jets Production, JHEP 03 (2022) 096. ArXiv:2110.06953
with T. Gehrmann et al., NNLO QCD corrections to event orientation in e+e- annihilation, Phys.Lett. B775 (2017) 185-189. ArXiv: 1709.01097
Field-theoretical Aspects and Automation of Scattering Amplitudes:
with J.-N. Lang et al., Two-Loop Rational Terms in Spontaneously Broken Theories, JHEP 01 (2022) 105. ArXiv:2107.10288
with J.-N. Lang et al., Two-Loop Rational Terms in Yang-Mills Theories, JHEP 10 (2020) 016. ArXiv:2007.03713
with S. Pozzorini and M. Zoller, Rational Terms of UV Origin at Two Loops, JHEP 05 (2020) 077. ArXiv:2001.11388
with F. Buccioni et al., OpenLoops 2, Eur.Phys.J. C79 (2019) 10, 866. ArXiv: 1907.13071
Beyond Standard Model Physics:
with S. Iguro et al., Chasing the two-Higgs doublet model in the di-Higgs production, Phys.Rev.D 107 (2023) 7, 075017. ArXiv: 2211.00011
with M. Blanke and S. Iguro, Towards Ruling Out the Charged Higgs Interpretation of the R_D* Anomaly, JHEP 06 (2022) 043. ArXiv: 2202.10468
with A. Greljo et al., Electroweak Higgs Production with HiggsPO at NLO QCD, Eur.Phys.J. C77 (2017) 12, 838. ArXiv:1710:04143
Conference Proceedings:
H. Zhang, Progress in two-loop electroweak corrections to gg -> HH and gg -> gH, PoS EPS-HEP2023 (2023) 393.
H. Zhang, UV and IR rational terms in two-loop amplitudes: first insights, PoS LL2022 (2022) 072.
with S. Pozzorini and M. Zoller, Rational terms in two-loop calculations, PoS RADCOR2019 (2019) 081.
with M. Zoller et al., On-the-fly reduction of open loops, PoS LL2018 (2018) 045.
Teachings:
Quantum Mechanics II and Statistical Physics, KIT, 2023.
Introduction to Theoretical Particle Physics, KIT, 2022.
Quantum Field Theory I, ETH & UZH, 2020.
Analysis II, UZH, 2020.
Elementary Particle Theory, UZH, 2019.
Electrodynamics, UZH, 2019.