Electroweak baryogenesis via bottom transport: Complementarity between LHC and future lepton collider probes
We study the complementarity between the Large Hadron Collider (LHC) and future lepton colliders in probing electroweak baryogenesis induced by an additional bottom Yukawa coupling ρbb. The context is general two Higgs doublet model (g2HDM) where such additional bottom Yukawa coupling can account fo...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2021-11-01
|
| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269321006353 |
| _version_ | 1818894040049909760 |
|---|---|
| author | Tanmoy Modak Eibun Senaha |
| author_facet | Tanmoy Modak Eibun Senaha |
| author_sort | Tanmoy Modak |
| collection | DOAJ |
| description | We study the complementarity between the Large Hadron Collider (LHC) and future lepton colliders in probing electroweak baryogenesis induced by an additional bottom Yukawa coupling ρbb. The context is general two Higgs doublet model (g2HDM) where such additional bottom Yukawa coupling can account for the observed baryon asymmetry of the Universe if Im(ρbb)≳0.058. We find that LHC would probe the nominal Im(ρbb) required for baryogenesis to some extent via bg→bA→bZh process if 300GeV≲mA≲450 GeV, where A is the CP-odd scalar in g2HDM. We show that future electron positron collider such as International Linear Collider with 500 GeV and 1 TeV collision energies may offer unique probe for the nominal Im(ρbb) via e+e−→Z⁎→AH process followed by A,H→bb¯ decays in four b-jets signature. For complementarity we also study the resonant diHiggs productions, which may give an insight into strong first-order electroweak phase transition, via e+e−→Z⁎→AH→Ahh process in six b-jets signature. We find that 1 TeV collision energy with O(1)ab−1 integrated luminosity could offer an ideal environment for the discovery. |
| first_indexed | 2024-12-19T18:22:10Z |
| format | Article |
| id | doaj.art-7b0c2db9c95746098851cadb007adaee |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-19T18:22:10Z |
| publishDate | 2021-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-7b0c2db9c95746098851cadb007adaee2022-12-21T20:10:57ZengElsevierPhysics Letters B0370-26932021-11-01822136695Electroweak baryogenesis via bottom transport: Complementarity between LHC and future lepton collider probesTanmoy Modak0Eibun Senaha1Institut für Theoretische Physik, Universität Heidelberg, 69120 Heidelberg, GermanyTheoretical Particle Physics and Cosmology Research Group, Advanced Institute of Materials Science, Ton Duc Thang University, Ho Chi Minh City, Viet Nam; Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Viet Nam; Corresponding author.We study the complementarity between the Large Hadron Collider (LHC) and future lepton colliders in probing electroweak baryogenesis induced by an additional bottom Yukawa coupling ρbb. The context is general two Higgs doublet model (g2HDM) where such additional bottom Yukawa coupling can account for the observed baryon asymmetry of the Universe if Im(ρbb)≳0.058. We find that LHC would probe the nominal Im(ρbb) required for baryogenesis to some extent via bg→bA→bZh process if 300GeV≲mA≲450 GeV, where A is the CP-odd scalar in g2HDM. We show that future electron positron collider such as International Linear Collider with 500 GeV and 1 TeV collision energies may offer unique probe for the nominal Im(ρbb) via e+e−→Z⁎→AH process followed by A,H→bb¯ decays in four b-jets signature. For complementarity we also study the resonant diHiggs productions, which may give an insight into strong first-order electroweak phase transition, via e+e−→Z⁎→AH→Ahh process in six b-jets signature. We find that 1 TeV collision energy with O(1)ab−1 integrated luminosity could offer an ideal environment for the discovery.http://www.sciencedirect.com/science/article/pii/S0370269321006353 |
| spellingShingle | Tanmoy Modak Eibun Senaha Electroweak baryogenesis via bottom transport: Complementarity between LHC and future lepton collider probes Physics Letters B |
| title | Electroweak baryogenesis via bottom transport: Complementarity between LHC and future lepton collider probes |
| title_full | Electroweak baryogenesis via bottom transport: Complementarity between LHC and future lepton collider probes |
| title_fullStr | Electroweak baryogenesis via bottom transport: Complementarity between LHC and future lepton collider probes |
| title_full_unstemmed | Electroweak baryogenesis via bottom transport: Complementarity between LHC and future lepton collider probes |
| title_short | Electroweak baryogenesis via bottom transport: Complementarity between LHC and future lepton collider probes |
| title_sort | electroweak baryogenesis via bottom transport complementarity between lhc and future lepton collider probes |
| url | http://www.sciencedirect.com/science/article/pii/S0370269321006353 |
| work_keys_str_mv | AT tanmoymodak electroweakbaryogenesisviabottomtransportcomplementaritybetweenlhcandfutureleptoncolliderprobes AT eibunsenaha electroweakbaryogenesisviabottomtransportcomplementaritybetweenlhcandfutureleptoncolliderprobes |