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The 750 GeV diphoton excess in unified $SU {(2)}_{L} \times SU {(2)}_{R} \times SU (4)$ models from noncommutative geometry

Ufuk Aydemir

Department of Physics and Astronomy, Uppsala University, SE-751 20 Uppsala, Sweden

E-mail Address: [email protected]

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Djordje Minic

Center for Neutrino Physics, Department of Physics, Virginia Tech, Blacksburg, VA 24061, USA

E-mail Address: [email protected]

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Chen Sun

Center for Neutrino Physics, Department of Physics, Virginia Tech, Blacksburg, VA 24061, USA

E-mail Address: [email protected]

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, and

Tatsu Takeuchi

Center for Neutrino Physics, Department of Physics, Virginia Tech, Blacksburg, VA 24061, USA

E-mail Address: [email protected]

Corresponding author

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https://doi.org/10.1142/S0217732316501017Cited by:11 (Source: Crossref)

Abstract

We discuss a possible interpretation of the 750 GeV diphoton resonance, recently reported at the large hadron collider (LHC), within a class of $SU {(2)}_{L} \times SU {(2)}_{R} \times SU (4)$ models with gauge coupling unification. The unification is imposed by the underlying noncommutative geometry (NCG), which in these models is extended to a left–right symmetric completion of the Standard Model (SM). Within such unified $SU {(2)}_{L} \times SU {(2)}_{R} \times SU (4)$ models the Higgs content is restrictively determined from the underlying NCG, instead of being arbitrarily selected. We show that the observed cross-sections involving the 750 GeV diphoton resonance could be realized through a SM singlet scalar field accompanied by colored scalars, present in these unified models. In view of this result, we discuss the underlying rigidity of these models in the NCG framework and the wider implications of the NCG approach for physics beyond the SM.

Keywords:

PACS: 12.10.Dm, 12.60.-i, 12.90.+b

References

1. R. N. Mohapatra, Unification and Supersymmetry: The Frontiers of Quark-Lepton Physics, 3rd edn. (Springer, 2002). Google Scholar
2. A. H. Chamseddine and A. Connes, Fortschr. Phys. 58, 553 (2010). Crossref, Web of Science, ADS, Google Scholar
3. A. H. Chamseddine and A. Connes, JHEP 09, 104 (2012). Crossref, Web of Science, ADS, Google Scholar
4. A. H. Chamseddine, A. Connes and W. D. van Suijlekom, JHEP 11, 132 (2013). Crossref, Web of Science, ADS, Google Scholar
5. A. H. Chamseddine, A. Connes and W. D. van Suijlekom, JHEP 11, 011 (2015). Crossref, Web of Science, ADS, Google Scholar
6. J. C. Pati and A. Salam, Phys. Rev. D 10, 275 (1974) [Erratum-ibid. 11, 703 (1975)]. Crossref, Web of Science, ADS, Google Scholar
7. R. N. Mohapatra and J. C. Pati, Phys. Rev. D 11, 566 (1975). Crossref, Web of Science, ADS, Google Scholar
8. R. N. Mohapatra and J. C. Pati, Phys. Rev. D 11, 2558 (1975). Crossref, Web of Science, ADS, Google Scholar
9. G. Senjanovic and R. N. Mohapatra, Phys. Rev. D 12, 1502 (1975). Crossref, Web of Science, ADS, Google Scholar
10. R. N. Mohapatra and R. E. Marshak, Phys. Rev. Lett. 44, 1316 (1980) [Erratum-ibid. 44, 1643 (1980)]. Crossref, Web of Science, ADS, Google Scholar
11. U. Aydemir, D. Minic, C. Sun and T. Takeuchi, Int. J. Mod. Phys. A 31, 1550223 (2016). Link, Web of Science, ADS, Google Scholar
12. U. Aydemir, D. Minic and T. Takeuchi, Phys. Lett. B 724, 301 (2013). Crossref, Web of Science, ADS, Google Scholar
13. U. Aydemir, D. Minic, C. Sun and T. Takeuchi, Phys. Rev. D 91, 045020 (2015). Crossref, Web of Science, ADS, Google Scholar
14. ATLAS Collab., Search for resonances decaying to photon pairs in 3.2 fb $^{- 1}$ of $p p$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector (2015), ATLAS-CONF-2015-081. Google Scholar
15. CMS Collab., Search for new physics in high mass diphoton events in proton–proton collisions at 13 TeV (2015), CMS-PAS-EXO-15-004. Google Scholar
16. M. R. Buckley, arXiv:1601.04751. Google Scholar
17. U. Aydemir and T. Mandal, arXiv:1601.06761. Google Scholar
18. A. Dasgupta, M. Mitra and D. Borah, arXiv:1512.09202. Google Scholar
19. ATLAS Collab. (G. Aad et al.), Phys. Rev. D 91, 052007 (2015). Crossref, Web of Science, ADS, Google Scholar
20. ATLAS Collab. (G. Aad et al.), JHEP 12, 055 (2015). ADS, Google Scholar
21. ATLAS Collab. (G. Aad et al.), Phys. Lett. B 755, 285 (2016). Crossref, Web of Science, ADS, Google Scholar
22. CMS Collab. (V. Khachatryan et al.), JHEP 08, 174 (2014). Google Scholar
23. CMS Collab. (V. Khachatryan et al.), Phys. Rev. D 91, 052009 (2015). Crossref, Web of Science, Google Scholar
24. CMS Collab. (V. Khachatryan et al.), arXiv:1601.06431. Google Scholar
25. R. Slansky, Phys. Rep. 79, 1 (1981). Crossref, Web of Science, ADS, Google Scholar
26. U. Aydemir, Int. J. Mod. Phys. A 31, 1650034 (2016). Link, Web of Science, ADS, Google Scholar
27. Particle Data Group Collab. (K. A. Olive et al.), Chin. Phys. C 38, 090001 (2014). Crossref, Web of Science, Google Scholar
28. SLD Electroweak Group, DELPHI, ALEPH, SLD, SLD Heavy Flavour Group, OPAL, LEP Electroweak Working Group, L3 Collab. (S. Schael et al.), Phys. Rep. 427, 257 (2006). Web of Science, ADS, Google Scholar
29. D. R. T. Jones, Phys. Rev. D 25, 581 (1982). Crossref, Web of Science, ADS, Google Scholar
30. M. Lindner and M. Weiser, Phys. Lett. B 383, 405 (1996). Crossref, Web of Science, ADS, Google Scholar