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http://hdl.handle.net/2445/131709
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DC Field | Value | Language |
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dc.contributor.author | López Val, David | - |
dc.contributor.author | Solà Peracaula, Joan | - |
dc.contributor.author | Bernal, Nicolás | - |
dc.date.accessioned | 2019-04-08T08:29:31Z | - |
dc.date.available | 2019-04-08T08:29:31Z | - |
dc.date.issued | 2010-06-18 | - |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.uri | http://hdl.handle.net/2445/131709 | - |
dc.description.abstract | The associated production of neutral Higgs bosons with the Z 0 gauge boson ( h 0 Z 0 , H 0 Z 0 ) is investigated in the context of the future linear colliders, such as the ILC and CLIC, within the general two-Higgs-doublet model (2HDM). We compute the corresponding cross section for the processes e + e − → Z 0 h 0 / Z 0 H 0 at one-loop, including the full set of corrections at O ( α 3 e w ) together with the leading O ( α 4 e w ) terms, in full consistency with the available theoretical and phenomenological constraints. We find that the wave-function corrections to the external Higgs fields are the dominant source of the quantum effects, which turn out to be large and negative (e.g., δ σ / σ ∼ − 20 % / − 60 % ) in all the √ s range, and located predominantly in the region around tan β ∼ 1 and moderate values of the parameter λ 5 (being λ 5 < 0 ). This behavior can be ultimately traced back to the enhancement potential of the triple Higgs-boson self-couplings, a trademark feature of the 2HDM with no counterpart in the Higgs sector of the minimal supersymmetric standard model. Even under this substantial depletion of the one-loop-corrected signal (which is also highly distinctive with respect to the SM expectation for e + e − → Z 0 H ), the predicted Higgs-strahlung rates comfortably reach a few tens of femtobarn, which means barely ∼ 10 3 - 10 4 events per 500 fb − 1 of integrated luminosity. Because of their great complementarity, we argue that the combined analysis of the Higgs-strahlung events ( h 0 Z 0 , H 0 Z 0 ) and the previously computed one-loop Higgs-pair production processes ( H 0 A 0 ) could be instrumental to probe the structure of the Higgs sector at future linac facilities. | - |
dc.format.extent | 16 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Physical Society | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.81.113005 | - |
dc.relation.ispartof | Physical Review D, 2010, vol. D 81, num. 11, p. 113005 | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevD.81.113005 | - |
dc.rights | (c) American Physical Society, 2010 | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Física de partícules | - |
dc.subject.classification | Experiments | - |
dc.subject.classification | Bosons de Higgs | - |
dc.subject.other | Particle physics | - |
dc.subject.other | Experiments | - |
dc.subject.other | Higgs bosons | - |
dc.title | Quantum effects on Higgs-strahlung events at linear colliders within the general two-Higgs-doublet model | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 589477 | - |
dc.date.updated | 2019-04-08T08:29:32Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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589477.pdf | 609.39 kB | Adobe PDF | View/Open |
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