Additional Higgs Bosons near 95 and 650 GeV in the NMSSM

• Published in: The European physical journal. C, Particles and fields Vol. 83; no. 12; pp. 1138 - 9
• Main Authors: Ellwanger, Ulrich, Hugonie, Cyril
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.12.2023; Springer; Springer Nature B.V; Springer Verlag (Germany); SpringerOpen
• Subjects: Astronomy; Astrophysics and Cosmology; Bosons; Couplings; Dark matter; Elementary Particles; Hadrons; Heavy Ions; Higgs bosons; High Energy Physics - Phenomenology; Large Hadron Collider; Measurement Science and Instrumentation; Nuclear Energy; Nuclear Physics; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Quarks; Regular Article - Theoretical Physics; String Theory; ATLAS; dark matter, direct detection; two-photon; new physics; resonance, production; Higgs particle; CMS; GeV; minimal supersymmetric standard model; CERN LHC Coll; CERN LEP Stor
• ISSN: 1434-6052; 1434-6044; 1434-6052
• DOI: 10.1140/epjc/s10052-023-12315-y

Hints for an additional Higgs boson with a mass of about 95 GeV originate from LEP and searches in the diphoton channel by CMS and ATLAS. A search for resonant production of SM plus BSM Higgs bosons in the diphoton plus b b ¯ channel by CMS showed some excess for a 650 GeV resonance decaying into the SM Higgs plus a 95 GeV Higgs boson. We investigate whether these phenomena can be interpreted simultaneously within the NMSSM subject to the latest constraints on couplings of the SM Higgs boson, on extra Higgs bosons from the LHC, and on dark matter direct detection cross sections. We find that the hints for a 95 GeV Higgs boson in the diphoton channel by CMS and ATLAS and in the diphoton plus b b ¯ channel by CMS can be fitted simultaneously within the 2 σ  level.