Abstract
We study the effective field theory obtained by extending the Standard Model field content with two singlets: a 750 GeV (pseudo-)scalar and a stable fermion. Accounting for collider productions initiated by both gluon and photon fusion, we investigate where the theory is consistent with both the LHC diphoton excess and bounds from Run 1. We analyze dark matter phenomenology in such regions, including relic density constraints as well as collider, direct, and indirect bounds. Scalar portal dark matter models are very close to limits from direct detection and mono-jet searches if gluon fusion dominates, and not constrained at all otherwise. Pseudo-scalar models are challenged by photon line limits and mono-jet searches in most of the parameter space.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
ATLAS collaboration, Search for resonances decaying to photon pairs in 3.2 fb −1 of pp collisions at \( \sqrt{s}=13 \) TeV with the ATLAS detector, ATLAS-CONF-2015-081 (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 (2015).
G. Bertone, D. Hooper and J. Silk, Particle dark matter: evidence, candidates and constraints, Phys. Rept. 405 (2005) 279 [hep-ph/0404175] [INSPIRE].
J.L. Feng, Dark matter candidates from particle physics and methods of detection, Ann. Rev. Astron. Astrophys. 48 (2010) 495 [arXiv:1003.0904] [INSPIRE].
B.W. Lee and S. Weinberg, Cosmological lower bound on heavy neutrino masses, Phys. Rev. Lett. 39 (1977) 165 [INSPIRE].
R.J. Scherrer and M.S. Turner, On the relic, cosmic abundance of stable weakly interacting massive particles, Phys. Rev. D 33 (1986) 1585 [Erratum ibid. D 34 (1986) 3263] [INSPIRE].
M. Srednicki, R. Watkins and K.A. Olive, Calculations of relic densities in the early universe, Nucl. Phys. B 310 (1988) 693 [INSPIRE].
Y.G. Kim, K.Y. Lee and S. Shin, Singlet fermionic dark matter, JHEP 05 (2008) 100 [arXiv:0803.2932] [INSPIRE].
A. Falkowski, O. Slone and T. Volansky, Phenomenology of a 750 GeV singlet, JHEP 02 (2016) 152 [arXiv:1512.05777] [INSPIRE].
L. Berthier, J.M. Cline, W. Shepherd and M. Trott, Effective interpretations of a diphoton excess, JHEP 04 (2016) 084 [arXiv:1512.06799] [INSPIRE].
M. Backović, A. Mariotti and D. Redigolo, Di-photon excess illuminates dark matter, JHEP 03 (2016) 157 [arXiv:1512.04917] [INSPIRE].
J. Kopp, V. Niro, T. Schwetz and J. Zupan, DAMA/LIBRA and leptonically interacting dark matter, Phys. Rev. D 80 (2009) 083502 [arXiv:0907.3159] [INSPIRE].
R.J. Hill and M.P. Solon, Universal behavior in the scattering of heavy, weakly interacting dark matter on nuclear targets, Phys. Lett. B 707 (2012) 539 [arXiv:1111.0016] [INSPIRE].
M.T. Frandsen, U. Haisch, F. Kahlhoefer, P. Mertsch and K. Schmidt-Hoberg, Loop-induced dark matter direct detection signals from γ-ray lines, JCAP 10 (2012) 033 [arXiv:1207.3971] [INSPIRE].
U. Haisch and F. Kahlhoefer, On the importance of loop-induced spin-independent interactions for dark matter direct detection, JCAP 04 (2013) 050 [arXiv:1302.4454] [INSPIRE].
R.J. Hill and M.P. Solon, WIMP-nucleon scattering with heavy WIMP effective theory, Phys. Rev. Lett. 112 (2014) 211602 [arXiv:1309.4092] [INSPIRE].
L. Vecchi, WIMPs and un-naturalness, arXiv:1312.5695 [INSPIRE].
J. Kopp, L. Michaels and J. Smirnov, Loopy constraints on leptophilic dark matter and internal bremsstrahlung, JCAP 04 (2014) 022 [arXiv:1401.6457] [INSPIRE].
A. Crivellin, F. D’Eramo and M. Procura, New constraints on dark matter effective theories from standard model loops, Phys. Rev. Lett. 112 (2014) 191304 [arXiv:1402.1173] [INSPIRE].
A. Crivellin and U. Haisch, Dark matter direct detection constraints from gauge bosons loops, Phys. Rev. D 90 (2014) 115011 [arXiv:1408.5046] [INSPIRE].
F. D’Eramo and M. Procura, Connecting dark matter UV complete models to direct detection rates via effective field theory, JHEP 04 (2015) 054 [arXiv:1411.3342] [INSPIRE].
R.J. Hill and M.P. Solon, Standard model anatomy of WIMP dark matter direct detection. II. QCD analysis and hadronic matrix elements, Phys. Rev. D 91 (2015) 043505 [arXiv:1409.8290] [INSPIRE].
A. Berlin, D.S. Robertson, M.P. Solon and K.M. Zurek, The bino variations: effective field theory methods for dark matter direct detection, arXiv:1511.05964 [INSPIRE].
S. Knapen, T. Melia, M. Papucci and K. Zurek, Rays of light from the LHC, Phys. Rev. D 93 (2016) 075020 [arXiv:1512.04928] [INSPIRE].
D. Buttazzo, A. Greljo and D. Marzocca, Knocking on new physics’ door with a scalar resonance, Eur. Phys. J. C 76 (2016) 116 [arXiv:1512.04929] [INSPIRE].
R. Franceschini et al., What is the γγ resonance at 750 GeV?, JHEP 03 (2016) 144 [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].
S.D. McDermott, P. Meade and H. Ramani, Singlet scalar resonances and the diphoton excess, Phys. Lett. B 755 (2016) 353 [arXiv:1512.05326] [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, JHEP 03 (2016) 176 [arXiv:1512.05327] [INSPIRE].
M. Low, A. Tesi and L.-T. Wang, A pseudoscalar decaying to photon pairs in the early LHC Run 2 data, JHEP 03 (2016) 108 [arXiv:1512.05328] [INSPIRE].
R.S. Gupta, S. Jäger, Y. Kats, G. Perez and E. Stamou, Interpreting a 750 GeV diphoton resonance, arXiv:1512.05332 [INSPIRE].
B. Dutta, Y. Gao, T. Ghosh, I. Gogoladze and T. Li, Interpretation of the diphoton excess at CMS and ATLAS, Phys. Rev. D 93 (2016) 055032 [arXiv:1512.05439] [INSPIRE].
J. Chakrabortty, A. Choudhury, P. Ghosh, S. Mondal and T. Srivastava, Di-photon resonance around 750 GeV: shedding light on the theory underneath, arXiv:1512.05767 [INSPIRE].
P. Agrawal, J. Fan, B. Heidenreich, M. Reece and M. Strassler, Experimental considerations motivated by the diphoton excess at the LHC, arXiv:1512.05775 [INSPIRE].
A. Alves, A.G. Dias and K. Sinha, The 750 GeV S-cion: where else should we look for it?, Phys. Lett. B 757 (2016) 39 [arXiv:1512.06091] [INSPIRE].
J.S. Kim, K. Rolbiecki and R.R. de Austri, Model-independent combination of diphoton constraints at 750 GeV, arXiv:1512.06797 [INSPIRE].
N. Craig, P. Draper, C. Kilic and S. Thomas, Shedding light on diphoton resonances, arXiv:1512.07733 [INSPIRE].
W. Altmannshofer et al., On the 750 GeV di-photon excess, arXiv:1512.07616 [INSPIRE].
C. Csáki, J. Hubisz and J. Terning, Minimal model of a diphoton resonance: production without gluon couplings, Phys. Rev. D 93 (2016) 035002 [arXiv:1512.05776] [INSPIRE].
S. Fichet, G. von Gersdorff and C. Royon, Scattering light by light at 750 GeV at the LHC, Phys. Rev. D 93 (2016) 075031 [arXiv:1512.05751] [INSPIRE].
C. Csáki, J. Hubisz, S. Lombardo and J. Terning, Gluon vs. photon production of a 750 GeV diphoton resonance, arXiv:1601.00638 [INSPIRE].
A.D. Martin and M.G. Ryskin, Advantages of exclusive γγ production to probe high mass systems, J. Phys. G 43 (2016) 04LT02 [arXiv:1601.07774] [INSPIRE].
A.D. Martin, W.J. Stirling, R.S. Thorne and G. Watt, Parton distributions for the LHC, Eur. Phys. J. C 63 (2009) 189 [arXiv:0901.0002] [INSPIRE].
J. Alwall et al., The automated computation of tree-level and next-to-leading order differential cross sections and their matching to parton shower simulations, JHEP 07 (2014) 079 [arXiv:1405.0301] [INSPIRE].
L.A. Harland-Lang, V.A. Khoze and M.G. Ryskin, The production of a diphoton resonance via photon-photon fusion, JHEP 03 (2016) 182 [arXiv:1601.07187] [INSPIRE].
ATLAS collaboration, A search for \( t\overline{t} \) resonances using lepton-plus-jets events in proton-proton collisions at \( \sqrt{s}=8 \) TeV with the ATLAS detector, JHEP 08 (2015) 148 [arXiv:1505.07018] [INSPIRE].
CMS collaboration, Search for resonant \( t\overline{t} \) production in proton-proton collisions at \( \sqrt{s}=8 \) TeV, Phys. Rev. D 93 (2016) 012001 [arXiv:1506.03062] [INSPIRE].
ATLAS collaboration, Search for high-mass diphoton resonances in pp collisions at \( \sqrt{s}=8 \) TeV with the ATLAS detector, Phys. Rev. D 92 (2015) 032004 [arXiv:1504.05511] [INSPIRE].
CMS collaboration, Search for diphoton resonances in the mass range from 150 to 850 GeV in pp collisions at \( \sqrt{s}=8 \) TeV, Phys. Lett. B 750 (2015) 494 [arXiv:1506.02301] [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].
CMS collaboration, Search for a Higgs boson in the mass range from 145 to 1000 GeV decaying to a pair of W or Z bosons, JHEP 10 (2015) 144 [arXiv:1504.00936] [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 new resonances in Wγ 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].
ATLAS collaboration, Search for new phenomena in the dijet mass distribution using pp collision data at \( \sqrt{s}=8 \) TeV with the ATLAS detector, Phys. Rev. D 91 (2015) 052007 [arXiv:1407.1376] [INSPIRE].
CMS collaboration, Search for resonances decaying to dijet final states at \( \sqrt{s}=8 \) TeV with scouting data, CMS-PAS-EXO-14-005 (2015).
Y. Mambrini, G. Arcadi and A. Djouadi, The LHC diphoton resonance and dark matter, Phys. Lett. B 755 (2016) 426 [arXiv:1512.04913] [INSPIRE].
X.-J. Bi, Q.-F. Xiang, P.-F. Yin and Z.-H. Yu, The 750 GeV diphoton excess at the LHC and dark matter constraints, arXiv:1512.06787 [INSPIRE].
M. Bauer and M. Neubert, Flavor anomalies, the diphoton excess and a dark matter candidate, arXiv:1512.06828 [INSPIRE].
P.S.B. Dev and D. Teresi, Asymmetric dark matter in the Sun and the diphoton excess at the LHC, arXiv:1512.07243 [INSPIRE].
H. Davoudiasl and C. Zhang, 750 GeV messenger of dark conformal symmetry breaking, Phys. Rev. D 93 (2016) 055006 [arXiv:1512.07672] [INSPIRE].
H. Han, S. Wang and S. Zheng, Dark matter theories in the light of diphoton excess, arXiv:1512.07992 [INSPIRE].
J.-C. Park and S.C. Park, Indirect signature of dark matter with the diphoton resonance at 750 GeV, arXiv:1512.08117 [INSPIRE].
X.-J. Huang, W.-H. Zhang and Y.-F. Zhou, A 750 GeV dark matter messenger at the galactic center, arXiv:1512.08992 [INSPIRE].
K. Ghorbani and H. Ghorbani, The 750 GeV diphoton excess from a pseudoscalar in fermionic dark matter scenario, arXiv:1601.00602 [INSPIRE].
L.D. Landau, On the angular momentum of a system of two photons, Dokl. Akad. Nauk Ser. Fiz. 60 (1948) 207 [INSPIRE].
C.-N. Yang, Selection rules for the dematerialization of a particle into two photons, Phys. Rev. 77 (1950) 242 [INSPIRE].
M. Chala, M. Duerr, F. Kahlhoefer and K. Schmidt-Hoberg, Tricking Landau-Yang: how to obtain the diphoton excess from a vector resonance, Phys. Lett. B 755 (2016) 145 [arXiv:1512.06833] [INSPIRE].
J. de Blas, J. Santiago and R. Vega-Morales, New vector bosons and the diphoton excess, arXiv:1512.07229 [INSPIRE].
K. Das and S.K. Rai, The 750 GeV diphoton excess in a U(1) hidden symmetry model, arXiv:1512.07789 [INSPIRE].
C. Han, H.M. Lee, M. Park and V. Sanz, The diphoton resonance as a gravity mediator of dark matter, Phys. Lett. B 755 (2016) 371 [arXiv:1512.06376] [INSPIRE].
Planck collaboration, P.A.R. Ade et al., Planck 2015 results. XIII. Cosmological parameters, arXiv:1502.01589 [INSPIRE].
ATLAS collaboration, Search for new phenomena in final states with an energetic jet and large missing transverse momentum in pp collisions at \( \sqrt{s}=8 \) TeV with the ATLAS detector, Eur. Phys. J. C 75 (2015) 299 [Erratum ibid. C 75 (2015) 408] [arXiv:1502.01518] [INSPIRE].
CMS collaboration, Search for dark matter, extra dimensions and unparticles in monojet events in proton-proton collisions at \( \sqrt{s}=8 \) TeV, Eur. Phys. J. C 75 (2015) 235 [arXiv:1408.3583] [INSPIRE].
A. Alloul, N.D. Christensen, C. Degrande, C. Duhr and B. Fuks, FeynRules 2.0 — a complete toolbox for tree-level phenomenology, Comput. Phys. Commun. 185 (2014) 2250 [arXiv:1310.1921] [INSPIRE].
C. Degrande et al., UFO — the Universal FeynRules Output, Comput. Phys. Commun. 183 (2012) 1201 [arXiv:1108.2040] [INSPIRE].
J. Alwall, M. Herquet, F. Maltoni, O. Mattelaer and T. Stelzer, MadGraph 5: going beyond, JHEP 06 (2011) 128 [arXiv:1106.0522] [INSPIRE].
J. Goodman et al., Constraints on dark matter from colliders, Phys. Rev. D 82 (2010) 116010 [arXiv:1008.1783] [INSPIRE].
D. Barducci, A. Goudelis, S. Kulkarni and D. Sengupta, One jet to rule them all: monojet constraints and invisible decays of a 750 GeV diphoton resonance, arXiv:1512.06842 [INSPIRE].
LUX collaboration, D.S. Akerib et al., Improved limits on scattering of weakly interacting massive particles from reanalysis of 2013 LUX data, Phys. Rev. Lett. 116 (2016) 161301 [arXiv:1512.03506] [INSPIRE].
A. Dobi, LUX-ZEPLIN (LZ) status, talk given at WIN-2015, Heidelberg Germany (2015), https://www.mpi-hd.mpg.de/WIN2015/talks/astro4_dobi.pdf.
M. Cirelli, E. Del Nobile and P. Panci, Tools for model-independent bounds in direct dark matter searches, JCAP 10 (2013) 019 [arXiv:1307.5955] [INSPIRE].
G. Ovanesyan and L. Vecchi, Direct detection of dark matter polarizability, JHEP 07 (2015) 128 [arXiv:1410.0601] [INSPIRE].
A. Crivellin, M. Hoferichter and M. Procura, Accurate evaluation of hadronic uncertainties in spin-independent WIMP-nucleon scattering: disentangling two- and three-flavor effects, Phys. Rev. D 89 (2014) 054021 [arXiv:1312.4951] [INSPIRE].
M. Hoferichter, J. Ruiz de Elvira, B. Kubis and U.-G. Meißner, High-precision determination of the pion-nucleon σ term from Roy-Steiner equations, Phys. Rev. Lett. 115 (2015) 092301 [arXiv:1506.04142] [INSPIRE].
J.M. Alarcón, J. Martin Camalich and J.A. Oller, The chiral representation of the πN scattering amplitude and the pion-nucleon sigma term, Phys. Rev. D 85 (2012) 051503 [arXiv:1110.3797] [INSPIRE].
P. Junnarkar and A. Walker-Loud, Scalar strange content of the nucleon from lattice QCD, Phys. Rev. D 87 (2013) 114510 [arXiv:1301.1114] [INSPIRE].
A.L. Fitzpatrick, W. Haxton, E. Katz, N. Lubbers and Y. Xu, The effective field theory of dark matter direct detection, JCAP 02 (2013) 004 [arXiv:1203.3542] [INSPIRE].
Fermi-LAT collaboration, M. Ackermann et al., Updated search for spectral lines from galactic dark matter interactions with pass 8 data from the Fermi Large Area Telescope, Phys. Rev. D 91 (2015) 122002 [arXiv:1506.00013] [INSPIRE].
HESS collaboration, A. Abramowski et al., Search for photon-linelike signatures from dark matter annihilations with H.E.S.S., Phys. Rev. Lett. 110 (2013) 041301 [arXiv:1301.1173] [INSPIRE].
Fermi-LAT collaboration, M. Ackermann et al., Searching for dark matter annihilation from Milky Way dwarf spheroidal galaxies with six years of Fermi Large Area Telescope data, Phys. Rev. Lett. 115 (2015) 231301 [arXiv:1503.02641] [INSPIRE].
A. Ibarra, A.S. Lamperstorfer, S. López-Gehler, M. Pato and G. Bertone, On the sensitivity of CTA to gamma-ray boxes from multi-TeV dark matter, JCAP 09 (2015) 048 [arXiv:1503.06797] [INSPIRE].
M. Cirelli et al., PPPC 4 DM ID: a poor particle physicist cookbook for dark matter indirect detection, JCAP 03 (2011) 051 [Erratum ibid. 10 (2012) E01] [arXiv:1012.4515] [INSPIRE].
K. Griest and D. Seckel, Three exceptions in the calculation of relic abundances, Phys. Rev. D 43 (1991) 3191 [INSPIRE].
K. Harigaya and Y. Nomura, Composite models for the 750 GeV diphoton excess, Phys. Lett. B 754 (2016) 151 [arXiv:1512.04850] [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, Phys. Lett. B 756 (2016) 126 [arXiv:1512.04921] [INSPIRE].
Y. Nakai, R. Sato and K. Tobioka, Footprints of new strong dynamics via anomaly and the 750 GeV diphoton, Phys. Rev. Lett. 116 (2016) 151802 [arXiv:1512.04924] [INSPIRE].
B. Bellazzini, R. Franceschini, F. Sala and J. Serra, Goldstones in diphotons, JHEP 04 (2016) 072 [arXiv:1512.05330] [INSPIRE].
K.M. Patel and P. Sharma, Interpreting 750 GeV diphoton excess in SU(5) grand unified theory, Phys. Lett. B 757 (2016) 282 [arXiv:1512.07468] [INSPIRE].
L.J. Hall, K. Harigaya and Y. Nomura, 750 GeV diphotons: implications for supersymmetric unification, JHEP 03 (2016) 017 [arXiv:1512.07904] [INSPIRE].
F. Goertz, J.F. Kamenik, A. Katz and M. Nardecchia, Indirect constraints on the scalar di-photon resonance at the LHC, arXiv:1512.08500 [INSPIRE].
Y. Jiang, Y.-Y. Li and T. Liu, 750 GeV resonance in the gauged U(1)′-extended MSSM, arXiv:1512.09127 [INSPIRE].
D. Bardhan et al., Radion candidate for the LHC diphoton resonance, arXiv:1512.06674 [INSPIRE].
J.J. Heckman, 750 GeV diphotons from a D3-brane, Nucl. Phys. B 906 (2016) 231 [arXiv:1512.06773] [INSPIRE].
R. Mertig, M. Böhm and A. Denner, Feyn Calc — computer algebraic calculation of Feynman amplitudes, Comput. Phys. Commun. 64 (1991) 345 [INSPIRE].
J.C. Collins, A. Duncan and S.D. Joglekar, Trace and dilatation anomalies in gauge theories, Phys. Rev. D 16 (1977) 438 [INSPIRE].
M.A. Shifman, A.I. Vainshtein and V.I. Zakharov, Remarks on Higgs boson interactions with nucleons, Phys. Lett. B 78 (1978) 443 [INSPIRE].
Particle Data Group collaboration, K.A. Olive et al., Review of particle physics, Chin. Phys. C 38 (2014) 090001 [INSPIRE].
P. Gondolo and G. Gelmini, Cosmic abundances of stable particles: improved analysis, Nucl. Phys. B 360 (1991) 145 [INSPIRE].
Open Access
This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
Author information
Authors and Affiliations
Corresponding author
Additional information
ArXiv ePrint: 1601.01571
Rights and permissions
Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
About this article
Cite this article
D’Eramo, F., de Vries, J. & Panci, P. A 750 GeV portal: LHC phenomenology and dark matter candidates. J. High Energ. Phys. 2016, 89 (2016). https://doi.org/10.1007/JHEP05(2016)089
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1007/JHEP05(2016)089