The 750 GeV diphoton excess as a first light on supersymmetry breaking
One of the most exciting explanations advanced for the recent diphoton excess found by ATLAS and CMS is in terms of sgoldstino decays: a signal of low-energy supersymmetry-breaking scenarios. The sgoldstino, a scalar, couples directly to gluons and photons, with strength related to gaugino masses, t...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2016-08-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269316302179 |
| _version_ | 1798044805123538944 |
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| author | J.A. Casas J.R. Espinosa J.M. Moreno |
| author_facet | J.A. Casas J.R. Espinosa J.M. Moreno |
| author_sort | J.A. Casas |
| collection | DOAJ |
| description | One of the most exciting explanations advanced for the recent diphoton excess found by ATLAS and CMS is in terms of sgoldstino decays: a signal of low-energy supersymmetry-breaking scenarios. The sgoldstino, a scalar, couples directly to gluons and photons, with strength related to gaugino masses, that can be of the right magnitude to explain the excess. However, fitting the suggested resonance width, Γ≃45 GeV, is not so easy. In this paper we explore efficient possibilities to enhance the sgoldstino width, via the decay into two Higgses, two Higgsinos and through mixing between the sgoldstino and the Higgs boson. In addition, we present an alternative and more efficient mechanism to generate a mass splitting between the scalar and pseudoscalar components of the sgoldstino, which has been suggested as an interesting alternative explanation to the apparent width of the resonance. |
| first_indexed | 2024-04-11T23:10:13Z |
| format | Article |
| id | doaj.art-d671c3bd86ef47a0a4e6e108e6c4e401 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 1873-2445 |
| language | English |
| last_indexed | 2024-04-11T23:10:13Z |
| publishDate | 2016-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-d671c3bd86ef47a0a4e6e108e6c4e4012022-12-22T03:57:53ZengElsevierPhysics Letters B0370-26931873-24452016-08-01759C15916510.1016/j.physletb.2016.05.070The 750 GeV diphoton excess as a first light on supersymmetry breakingJ.A. Casas0J.R. Espinosa1J.M. Moreno2Instituto de Física Teórica, IFT-UAM/CSIC, Nicolás Cabrera 13, UAM Cantoblanco, 28049 Madrid, SpainInstitut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), Campus UAB, E-08193, Bellaterra (Barcelona), SpainInstituto de Física Teórica, IFT-UAM/CSIC, Nicolás Cabrera 13, UAM Cantoblanco, 28049 Madrid, SpainOne of the most exciting explanations advanced for the recent diphoton excess found by ATLAS and CMS is in terms of sgoldstino decays: a signal of low-energy supersymmetry-breaking scenarios. The sgoldstino, a scalar, couples directly to gluons and photons, with strength related to gaugino masses, that can be of the right magnitude to explain the excess. However, fitting the suggested resonance width, Γ≃45 GeV, is not so easy. In this paper we explore efficient possibilities to enhance the sgoldstino width, via the decay into two Higgses, two Higgsinos and through mixing between the sgoldstino and the Higgs boson. In addition, we present an alternative and more efficient mechanism to generate a mass splitting between the scalar and pseudoscalar components of the sgoldstino, which has been suggested as an interesting alternative explanation to the apparent width of the resonance.http://www.sciencedirect.com/science/article/pii/S0370269316302179 |
| spellingShingle | J.A. Casas J.R. Espinosa J.M. Moreno The 750 GeV diphoton excess as a first light on supersymmetry breaking Physics Letters B |
| title | The 750 GeV diphoton excess as a first light on supersymmetry breaking |
| title_full | The 750 GeV diphoton excess as a first light on supersymmetry breaking |
| title_fullStr | The 750 GeV diphoton excess as a first light on supersymmetry breaking |
| title_full_unstemmed | The 750 GeV diphoton excess as a first light on supersymmetry breaking |
| title_short | The 750 GeV diphoton excess as a first light on supersymmetry breaking |
| title_sort | 750 gev diphoton excess as a first light on supersymmetry breaking |
| url | http://www.sciencedirect.com/science/article/pii/S0370269316302179 |
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