Abstract
A recent signal of 750 GeV diphotons at the LHC can be explained within the framework of supersymmetric unification by the introduction of vector quarks and leptons with Yukawa couplings to a singlet S that describes the 750 GeV resonance. We study the most general set of theories that allow successful gauge coupling unification, and find that these Yukawa couplings are severely constrained by renormalization group behavior: they are independent of ultraviolet physics and flow to values at the TeV scale that we calculate precisely. As a consequence the vector quarks and leptons must be light; typically in the region of 375 GeV to 700 GeV, and in certain cases up to 1 TeV. The 750 GeV resonance may have a width less than the experimental resolution; alternatively, with the mass splitting between scalar and pseudoscalar components of S arising from one-loop diagrams involving vector fermions, we compute an apparent width of 10s of GeV.
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References
M. Kado, ATLAS results, talk at ATLAS and CMS physics results from Run 2, CERN, Switzerland, 15 December 2015.
ATLAS collaboration, Search for resonances decaying to photon pairs in 3.2 f b −1 of pp collisions at \( \sqrt{s}=13 \) TeV with the ATLAS detector, ATLAS-CONF-2015-081.
J. Olsen, CMS results, talk at ATLAS and CMS physics results from Run 2, CERN, Switzerland, 15 December 2015.
CMS collaboration, Search for new physics in high mass diphoton events in proton-proton collisions at \( \sqrt{s}=13 \) TeV, CMS-PAS-EXO-15-004.
B.C. Allanach, P.S.B. Dev, S.A. Renner and K. Sakurai, Di-photon Excess Explained by a Resonant Sneutrino in R-parity Violating Supersymmetry, arXiv:1512.07645 [INSPIRE].
R. Ding, L. Huang, T. Li and B. Zhu, Interpreting 750 GeV Diphoton Excess with R-parity Violation Supersymmetry, arXiv:1512.06560 [INSPIRE].
K. Harigaya and Y. Nomura, Composite Models for the 750 GeV Diphoton Excess, Phys. Lett. B 754 (2016) 151 [arXiv:1512.04850] [INSPIRE].
Y. Mambrini, G. Arcadi and A. Djouadi, The LHC diphoton resonance and dark matter, arXiv:1512.04913 [INSPIRE].
M. Backovic, A. Mariotti and D. Redigolo, Di-photon excess illuminates Dark Matter, arXiv:1512.04917 [INSPIRE].
A. Angelescu, A. Djouadi and G. Moreau, Scenarii for interpretations of the LHC diphoton excess: two Higgs doublets and vector-like quarks and leptons, arXiv:1512.04921 [INSPIRE].
Y. Nakai, R. Sato and K. Tobioka, Footprints of New Strong Dynamics via Anomaly, arXiv:1512.04924 [INSPIRE].
S. Knapen, T. Melia, M. Papucci and K. Zurek, Rays of light from the LHC, arXiv:1512.04928 [INSPIRE].
D. Buttazzo, A. Greljo and D. Marzocca, Knocking on New Physics’ door with a Scalar Resonance, arXiv:1512.04929 [INSPIRE].
A. Pilaftsis, Diphoton Signatures from Heavy Axion Decays at the CERN Large Hadron Collider, Phys. Rev. D 93 (2016) 015017 [arXiv:1512.04931] [INSPIRE].
R. Franceschini et al., What is the gamma gamma resonance at 750 GeV?, arXiv:1512.04933 [INSPIRE].
S. Di Chiara, L. Marzola and M. Raidal, First interpretation of the 750 GeV di-photon resonance at the LHC, arXiv:1512.04939 [INSPIRE].
L. Maiani, G. Parisi and R. Petronzio, Bounds on the Number and Masses of Quarks and Leptons, Nucl. Phys. B 136 (1978) 115 [INSPIRE].
W.D. Goldberger, Y. Nomura and D. Tucker-Smith, Warped supersymmetric grand unification, Phys. Rev. D 67 (2003) 075021 [hep-ph/0209158] [INSPIRE].
D. Aloni, K. Blum, A. Dery, A. Efrati and Y. Nir, On a possible large width 750 GeV diphoton resonance at ATLAS and CMS, arXiv:1512.05778 [INSPIRE].
S. Dimopoulos and H. Georgi, Softly Broken Supersymmetry and SU(5), Nucl. Phys. B 193 (1981) 150 [INSPIRE].
N. Sakai, Naturalness in Supersymmetric Guts, Z. Phys. C 11 (1981) 153 [INSPIRE].
L.J. Hall and Y. Nomura, Gauge unification in higher dimensions, Phys. Rev. D 64 (2001) 055003 [hep-ph/0103125] [INSPIRE].
Y. Kawamura, Triplet doublet splitting, proton stability and extra dimension, Prog. Theor. Phys. 105 (2001) 999 [hep-ph/0012125] [INSPIRE].
P. Candelas, G.T. Horowitz, A. Strominger and E. Witten, Vacuum Configurations for Superstrings, Nucl. Phys. B 258 (1985) 46 [INSPIRE].
P. Hořava and E. Witten, Heterotic and type-I string dynamics from eleven-dimensions, Nucl. Phys. B 460 (1996) 506 [hep-th/9510209] [INSPIRE].
J. Ellis, S.A.R. Ellis, J. Quevillon, V. Sanz and T. You, On the Interpretation of a Possible ∼ 750 GeV Particle Decaying into γγ, arXiv:1512.05327 [INSPIRE].
LHC Higgs Cross Section Working Group, https://twiki.cern.ch/twiki/bin/view/LHCPhysics/LHCHXSWG.
ATLAS collaboration, Search for production of vector-like quark pairs and of four top quarks in the lepton-plus-jets final state in pp collisions at \( \sqrt{s}=8 \) TeV with the ATLAS detector, JHEP 08 (2015) 105 [arXiv:1505.04306] [INSPIRE].
ATLAS collaboration, Search for pair production of a new heavy quark that decays into a W boson and a light quark in pp collisions at \( \sqrt{s}=8 \) TeV with the ATLAS detector, Phys. Rev. D 92 (2015) 112007 [arXiv:1509.04261] [INSPIRE].
R. Mahbubani and L. Senatore, The Minimal model for dark matter and unification, Phys. Rev. D 73 (2006) 043510 [hep-ph/0510064] [INSPIRE].
G. Elor, H.-S. Goh, L.J. Hall, P. Kumar and Y. Nomura, Environmentally Selected WIMP Dark Matter with High-Scale Supersymmetry Breaking, Phys. Rev. D 81 (2010) 095003 [arXiv:0912.3942] [INSPIRE].
ATLAS collaboration, Search for a high-mass Higgs boson decaying to a W boson pair in pp collisions at \( \sqrt{s}=8 \) TeV with the ATLAS detector, JHEP 01 (2016) 032 [arXiv:1509.00389] [INSPIRE].
ATLAS collaboration, Search for an additional, heavy Higgs boson in the H → ZZ decay channel at \( \sqrt{s}=8 \) TeV in pp collision data with the ATLAS detector, Eur. Phys. J. C 76 (2016) 45 [arXiv:1507.05930] [INSPIRE].
ATLAS collaboration, Search for new resonances in W γ and Zγ final states in pp collisions at \( \sqrt{s}=8 \) TeV with the ATLAS detector, Phys. Lett. B 738 (2014) 428 [arXiv:1407.8150] [INSPIRE].
CMS collaboration, Search for Resonances Decaying to Dijet Final States at \( \sqrt{s}=8 \) TeV with Scouting Data, CMS-PAS-EXO-14-005.
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Hall, L.J., Harigaya, K. & Nomura, Y. 750 GeV diphotons: implications for supersymmetric unification. J. High Energ. Phys. 2016, 17 (2016). https://doi.org/10.1007/JHEP03(2016)017
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DOI: https://doi.org/10.1007/JHEP03(2016)017