Publication
Reappraisal of the wrong-sign HBB¯ coupling and the study of h→Zγ
| dc.contributor.author | Fontes, Duarte | |
| dc.contributor.author | Romão, J. C. | |
| dc.contributor.author | Silva, João Paulo | |
| dc.date.accessioned | 2015-08-25T10:54:44Z | |
| dc.date.available | 2015-08-25T10:54:44Z | |
| dc.date.issued | 2014-07 | |
| dc.description.abstract | It has been pointed out recently that current experiments still allow for a two Higgs doublet model where the hbb¯ coupling (kDmb/v) is negative; a sign opposite to that of the Standard Model. Due to the importance of delayed decoupling in the hH+H− coupling, h→γγ improved measurements will have a strong impact on this issue. For the same reason, measurements or even bounds on h→Zγ are potentially interesting. In this article, we revisit this problem, highlighting the crucial importance of h→VV, which can be understood with simple arguments. We show that the impacts on kD<0 models of both h→bb¯ and h→τ+τ− are very sensitive to input values for the gluon fusion production mechanism; in contrast, h→γγ and h→Zγ are not. We also inquire if the search for h→Zγ and its interplay with h→γγ will impact the sign of the hbb¯ coupling. Finally, we study these issues in the context of the flipped two Higgs doublet model. | por |
| dc.identifier.citation | FONTES, Duarte; ROMÃO, J. C.; SILVA, João Paulo . Reappraisal of the wrong-sign HBB¯ coupling and the study of h→Zγ. Physical Review D. ISSN: 1550-7998. Vol. 90, nr. 1 (2014), Art. nr. 015021 | por |
| dc.identifier.doi | 10.1103/PhysRevD.90.015021 | |
| dc.identifier.issn | 1550-7998 | |
| dc.identifier.issn | 1550-2368 | |
| dc.identifier.uri | http://hdl.handle.net/10400.21/4988 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.publisher | Amer Physical Society | por |
| dc.relation.ispartofseries | 015021 | |
| dc.subject | Higgs Doublet Model | por |
| dc.subject | Standard Model | por |
| dc.subject | Atlas Detector | por |
| dc.subject | PP Collisions | por |
| dc.subject | 8 TEV | por |
| dc.subject | Boson | por |
| dc.subject | Search | por |
| dc.subject | LHC | por |
| dc.subject | Root -S=7 | por |
| dc.subject | Photon | por |
| dc.title | Reappraisal of the wrong-sign HBB¯ coupling and the study of h→Zγ | por |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.issue | 1 | por |
| oaire.citation.title | Physical Review D | por |
| oaire.citation.volume | 90 | por |
| rcaap.rights | closedAccess | por |
| rcaap.type | article | por |