A1b: Higgs boson physics with higher order corrections and anomalous coupling

Principal investigators
Prof. Kirill Melnikov Karlsruhe Institute of Technology
Prof. Gudrun Heinrich Karlsruhe Institute of Technology

Subject

The goal of this project is to advance theoretical predictions for a number of relevant benchmark processes for Higgs boson production at the LHC that combine higher-order QCD corrections and effects of higher-dimensional operators. For Higgs production in weak boson fusion and Higgs associated production we aim at a combination of NNLO QCD corrections and anomalous couplings. For Higgs pair production, NLO electroweak corrections will be included, for Higgs production in association with two jets the NLO QCD corrections with full top quark mass dependence will be calculated.

Research Topics

  1. Standard Model Effective Theory: QCD renormalization of the relevant effective operators
  2. Higgs coupling to vector bosons: associated $VH$ and weak boson fusion production with NNLO QCD corrections and higher-dimensional operators
  3. Yukawa couplings of light and heavy quarks: $q \bar q \to H$ and $gg \to H$ through NNLO QCD and the determination of light quarks Yukawa coupling
  4. Higgs+jet(s) production with higher-order corrections, quark mass effects, higher-dimensional operators and Higgs decays
  5. Electroweak corrections to Higgs boson pair production
P3H-25-009
Title: $WH$ production at the LHC within SMEFT at next-to-next-to-leading order QCD
Type: Paper
Authors: Marco Bonetti, Robert Harlander, Dmitrii Korneev, Ming-Ming Long, Kirill Melnikov, Raoul Röntsch, Davide Maria Tagliabue
arXiv: 2502.12846
Info: We study the impact of $q \bar q' W$ and $q \bar q' WH$ interactions, originating from dimension-six operators of the Standard Model Effective Theory (SMEFT), on the Higgs boson associated production $pp \to W^+ H$ at the LHC. We compute the next-to-next-to-leading order (NNLO) QCD corrections to this process and compare these corrections in the SM and SMEFT production mechanisms.
P3H-24-075
Title: Three-loop ladder diagrams with two off-shell legs
Type: Paper
Authors: Ming-Ming Long
arXiv: N.A.
Info:
P3H-24-068
Title: Renormalisation group effects in SMEFT for di-Higgs production
Type: Paper
Authors: Gudrun Heinrich, Jannis Lang
arXiv:2409.19578
Info:
P3H-24-058
Title: Probing anomalous Higgs boson couplings in Higgs plus jet production at NLO QCD with full m_t-dependence
Type: Paper
Authors: Benjamin Campillo Aveleira, Gudrun Heinrich, Matthias Kerner, Lucas Kunz
arXiv: 2409.05728
Info:
P3H-24-046
Title: Electroweak corrections to Higgs boson pair production: The top-Yukawa and self-coupling contributions
Type: Paper
Authors: G. Heinrich, S.P. Jones, M. Kerner, T. W. Stone, A. Vestner
arXiv: 2407.04653
Info:
P3H-24-044
Title: Subleading operators and gamma5-scheme dependence in SMEFT for Higgs boson pair production
Type: Proceedings
Authors: Stefano Di Noi, Ramona Gröber, Gudrun Heinrich, Jannis Lang, Ludovic Scyboz, Marco Vitti
arXiv: https://arxiv.org/abs/2407.04747
Info:
P3H-24-006
Title: Precise SMEFT predictions for di-Higgs production
Type: Proceedings
Authors: Jannis Lang
arXiv: 2402.00509
Info: Contribution to the 11th Annual Conference on Large Hadron Collider Physics (LHCP2023)
P3H-23-095
Title: Combining chromomagnetic and four-fermion operators with leading SMEFT operators for $gg \to hh$ at NLO QCD
Type: Paper
Authors: Gudrun Heinrich, Jannis Lang
arXiv: 2311.15004
Info:
P3H-23-088
Five-Parton Scattering in QCD at Two Loops
Type: Paper
Authors: Bakul Agarwal, Federico Buccioni, Federica Devoto, Giulio Gambuti, Andreas von Manteuffel, Lorenzo Tancredi
arXiv: arXiv: 2311.09870
Info: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)
P3H-23-084
Title: Two Higgs bosons, two loops, x+2 operators
Type: Proceedings
Authors: Gudrun Heinrich, Jannis Lang, Ludovic Scyboz
arXiv: 2311.01839
Info:
P3H-23-080
Title: On gamma5 schemes and the interplay of SMEFT operators in the Higgs-gluon coupling
Type: Paper
Authors: Stefano Di Noi, Ramona Gröber, Gudrun Heinrich, Jannis Lang, Marco Vitti
arXiv:2310.18221
Info:
P3H-23-020
Title: Effective Field Theory descriptions of Higgs boson pair production
Type: Paper
Authors: L. Alasfar, L. Cadamuro, C.Dimitriadi, A. Ferrari, R. Gröber, G. Heinrich, T. Ingebretsen Carlson, J. Lang, S. Ördek, L. Pereira Sanchez, L. Scyboz, J. Sjölin
arXiv: 2304.01968
Info: LHC Higgs Working Group public note
P3H-22-062
Title: Anomalous Higgs boson couplings in weak boson fusion production at NNLO in QCD
Type: Paper
Authors: Konstantin Asteriadis, Fabrizio Caola, Kirill Melnikov, Raoul Röntsch
arXiv: 2206.14630
Info: