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Validity of the CMSSM interpretation of the diphoton excess
Zitieren Sie bitte immer diese URN: urn:nbn:de:bvb:20-opus-187429
- It has been proposed that the observed diphoton excess at 750 GeV could be explained within the constrained minimal supersymmetric standard model via resonantly produced stop bound states. We reanalyze this scenario critically and extend previous work to include the constraints from the stability of the electroweak vacuum and from the decays of the stoponium into a pair of Higgs bosons. It is shown that the interesting regions of parameter space with a light stop and Higgs of the desired mass are ruled out by these constraints. This conclusionIt has been proposed that the observed diphoton excess at 750 GeV could be explained within the constrained minimal supersymmetric standard model via resonantly produced stop bound states. We reanalyze this scenario critically and extend previous work to include the constraints from the stability of the electroweak vacuum and from the decays of the stoponium into a pair of Higgs bosons. It is shown that the interesting regions of parameter space with a light stop and Higgs of the desired mass are ruled out by these constraints. This conclusion is not affected by the presence of the bound states because the binding energy is usually very small in the regions of parameter space which can explain the Higgs mass. Thus, this also leads to strong constraints on the diphoton production cross section which is in general too small.…
Autor(en): | Herbi K. Dreiner, Manuel E. Krauss, Ben O'Leary, Toby Opferkuch, Florian Staub |
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URN: | urn:nbn:de:bvb:20-opus-187429 |
Dokumentart: | Artikel / Aufsatz in einer Zeitschrift |
Institute der Universität: | Fakultät für Physik und Astronomie / Institut für Theoretische Physik und Astrophysik |
Sprache der Veröffentlichung: | Englisch |
Titel des übergeordneten Werkes / der Zeitschrift (Englisch): | Physical Review D |
Erscheinungsjahr: | 2016 |
Band / Jahrgang: | 94 |
Heft / Ausgabe: | 5 |
Seitenangabe: | 055013 |
Originalveröffentlichung / Quelle: | Physical Review (2016) 94:5, 055013. https://doi.org/10.1103/PhysRevD.94.055013 |
DOI: | https://doi.org/10.1103/PhysRevD.94.055013 |
Allgemeine fachliche Zuordnung (DDC-Klassifikation): | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Freie Schlagwort(e): | 2-loop level; Bound-states; Breaking; Higgs-boson; MSSM; Mass; Minimal supersymmetric model; Sarah; Spectrum; Spheno |
Datum der Freischaltung: | 16.06.2020 |
Lizenz (Deutsch): | CC BY: Creative-Commons-Lizenz: Namensnennung |