The paper titled "Constraints on the Higgs boson self-coupling from single- and double-Higgs production with the ATLAS detector using \(pp\) collisions at \(\sqrt{s} = 13\ \mathrm{TeV}\)" in which Shota Hayashida has contributed, was published in Physics Letters B.

This paper shows combinations of single- and double-Higgs production searches using the complete LHC Run 2 dataset collected with the ATLAS detector. The combined analyses provide several results, such as an upper limit on the double-Higgs production cross-section and constraints on the Higgs boson self-coupling in several scenarios. Dr. Hayashida took a leading role in deriving the combined analysis results as the main analyst and representative of the search for the double-Higgs production in \(b\bar{b}b\bar{b}\) final state. More information about the paper is reported below.

Paper information:
The ATLAS Collaboration, "Constraints on the Higgs boson self-coupling from single- and double-Higgs production with the ATLAS detector using \(pp\) collisions at \(\sqrt{s} = 13\ \mathrm{TeV}\)"
[Phys. Lett. B, 843, 137745 (2023). DOI:10.1016/j.physletb.2023.137745]