Searching for charged Higgs bosons via e+e− → H+H− → c̄bc̄b at linear colliders

• Verfasst von: Hou, Wei-Shu [VerfasserIn]
• Verfasst von: Jain, Rishabh [VerfasserIn]
• Verfasst von: Modak, Tanmoy [VerfasserIn]
• Titel: Searching for charged Higgs bosons via e+e− → H+H− → c̄bc̄b at linear colliders
• Verf.angabe: Wei-Shu Hou, Rishabh Jain and Tanmoy Modak
• E-Jahr: 2022
• Jahr: July 21, 2022
• Umfang: 16 S.
• Fussnoten: Gesehen am 09.11.2022 ; Im Titel ist "+" und "-" hochgestellt
• Titel Quelle: Enthalten in: Journal of high energy physics
• Ort Quelle: Berlin : Springer, 1997
• Jahr Quelle: 2022
• Band/Heft Quelle: (2022), 7 vom: Juli, Artikel-ID 137, Seite 1-15
• ISSN Quelle: 1029-8479
• DOI: doi:10.1007/JHEP07(2022)137
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Beyond Standard Model
• Sach-SW: e +-e − Experiments
• Sach-SW: FCNC Interaction
• Sach-SW: Flavour Changing Neutral Currents
• Sach-SW: Higgs Physics
• K10plus-PPN: 1821287592

Abstract

We study a search for the charged Higgs boson via e+e− → H+H− → $$ \overline{c}b\overline{c}b $$at the 500 GeV ILC. In a general two Higgs doublet model without Z2 symmetry, extra Yukawa couplings ρtt and ρtc can drive baryogenesis, but searches at the HL-LHC may still go empty-handed if the couplings are relatively weak. Taking $$ {m}_{H^{+}} $$≃ mH ≃ mA ≃ 200 GeV, with ρtt, ρtc ∼ 0.1 and no h(125)-H mixing, H+ → $$ c\overline{b} $$decay is dominant, and the $$ \overline{c}b\overline{c}b $$final state is likely overwhelmed by QCD background at the LHC. We show that the electroweak production of H+H− at the ILC is discoverable with integrated luminosity of 1 ab−1. Furthermore, we show that $$ {m}_{H^{+}} $$can be extracted by requiring the two pairs of b and light jets be roughly equal in mass, without assuming the mass value. Thus, ILC can probe low mass Higgs bosons in multijet final states to complement HL-LHC in the future.