Singlet scalar resonances and the diphoton excess
ATLAS and CMS recently released the first results of searches for diphoton resonances in 13 TeV data, revealing a modest excess at an invariant mass of approximately 750 GeV. We find that it is generically possible that a singlet scalar resonance is the origin of the excess while avoiding all other...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2016-04-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269316001295 |
| _version_ | 1818289156229431296 |
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| author | Samuel D. McDermott Patrick Meade Harikrishnan Ramani |
| author_facet | Samuel D. McDermott Patrick Meade Harikrishnan Ramani |
| author_sort | Samuel D. McDermott |
| collection | DOAJ |
| description | ATLAS and CMS recently released the first results of searches for diphoton resonances in 13 TeV data, revealing a modest excess at an invariant mass of approximately 750 GeV. We find that it is generically possible that a singlet scalar resonance is the origin of the excess while avoiding all other constraints. We highlight some of the implications of this model and how compatible it is with certain features of the experimental results. In particular, we find that the very large total width of the excess is difficult to explain with loop-level decays alone, pointing to other interesting bounds and signals if this feature of the data persists. Finally we comment on the robust Zγ signature that will always accompany the model we investigate. |
| first_indexed | 2024-12-13T02:07:48Z |
| format | Article |
| id | doaj.art-697445e9e1654a54807b2494c628cf79 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-13T02:07:48Z |
| publishDate | 2016-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-697445e9e1654a54807b2494c628cf792022-12-22T00:03:05ZengElsevierPhysics Letters B0370-26932016-04-01755353357Singlet scalar resonances and the diphoton excessSamuel D. McDermott0Patrick Meade1Harikrishnan Ramani2Corresponding author.; C. N. Yang Institute for Theoretical Physics, Stony Brook, NY 11794, United StatesC. N. Yang Institute for Theoretical Physics, Stony Brook, NY 11794, United StatesC. N. Yang Institute for Theoretical Physics, Stony Brook, NY 11794, United StatesATLAS and CMS recently released the first results of searches for diphoton resonances in 13 TeV data, revealing a modest excess at an invariant mass of approximately 750 GeV. We find that it is generically possible that a singlet scalar resonance is the origin of the excess while avoiding all other constraints. We highlight some of the implications of this model and how compatible it is with certain features of the experimental results. In particular, we find that the very large total width of the excess is difficult to explain with loop-level decays alone, pointing to other interesting bounds and signals if this feature of the data persists. Finally we comment on the robust Zγ signature that will always accompany the model we investigate.http://www.sciencedirect.com/science/article/pii/S0370269316001295 |
| spellingShingle | Samuel D. McDermott Patrick Meade Harikrishnan Ramani Singlet scalar resonances and the diphoton excess Physics Letters B |
| title | Singlet scalar resonances and the diphoton excess |
| title_full | Singlet scalar resonances and the diphoton excess |
| title_fullStr | Singlet scalar resonances and the diphoton excess |
| title_full_unstemmed | Singlet scalar resonances and the diphoton excess |
| title_short | Singlet scalar resonances and the diphoton excess |
| title_sort | singlet scalar resonances and the diphoton excess |
| url | http://www.sciencedirect.com/science/article/pii/S0370269316001295 |
| work_keys_str_mv | AT samueldmcdermott singletscalarresonancesandthediphotonexcess AT patrickmeade singletscalarresonancesandthediphotonexcess AT harikrishnanramani singletscalarresonancesandthediphotonexcess |