Abstract
The ATLAS collaboration has recently reported a 2.6σ excess in the search for a heavy resonance decaying into a pair of weak gauge bosons. Only fully hadronic final states are being looked for in the analysis. If the observed excess really originates from the gauge bosons’ decays, other decay modes of the gauge bosons would inevitably leave a trace on other exotic searches. In this paper, we propose the use of the Z boson decay into a pair of neutrinos to test the excess. This decay leads to a very large missing energy and can be probed with conventional dark matter searches at the LHC. We discuss the current constraints from the dark matter searches and the prospects. We find that optimizing these searches may give a very robust probe of the resonance, even with the currently available data of the 8 TeV LHC.
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References
ATLAS collaboration, Search for high-mass diboson resonances with boson-tagged jets in proton-proton collisions at \( \sqrt{s}=8 \) TeV with the ATLAS detector, arXiv:1506.00962 [INSPIRE].
CMS collaboration, Search for massive resonances in dijet systems containing jets tagged as W or Z boson decays in pp collisions at \( \sqrt{s}=8 \) TeV, JHEP 08 (2014) 173 [arXiv:1405.1994] [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 and quantum black holes using dijet mass spectra in proton-proton collisions at \( \sqrt{s}=8 \) TeV, Phys. Rev. D 91 (2015) 052009 [arXiv:1501.04198] [INSPIRE].
CMS collaboration, Search for massive resonances decaying into pairs of boosted bosons in semi-leptonic final states at \( \sqrt{s}=8 \) TeV, JHEP 08 (2014) 174 [arXiv:1405.3447] [INSPIRE].
ATLAS collaboration, Search for production of WW/WZ resonances decaying to a lepton, neutrino and jets in pp collisions at \( \sqrt{s}=8 \) TeV with the ATLAS detector, Eur. Phys. J. C 75 (2015) 209 [Erratum ibid. C 75 (2015) 370] [arXiv:1503.04677] [INSPIRE].
ATLAS collaboration, Search for resonant diboson production in the \( \ell \ell q\overline{q} \) final state in pp collisions at \( \sqrt{s}=8 \) TeV with the ATLAS detector, Eur. Phys. J. C 75 (2015) 69 [arXiv:1409.6190] [INSPIRE].
D.B. Franzosi, M.T. Frandsen and F. Sannino, Diboson signals via Fermi scale spin-one states, arXiv:1506.04392 [INSPIRE].
K. Cheung, W.-Y. Keung, P.-Y. Tseng and T.-C. Yuan, Interpretations of the ATLAS diboson anomaly, arXiv:1506.06064 [INSPIRE].
A. Thamm, R. Torre and A. Wulzer, A composite heavy vector triplet in the ATLAS di-boson excess, arXiv:1506.08688 [INSPIRE].
J. Brehmer, J. Hewett, J. Kopp, T. Rizzo and J. Tattersall, Symmetry restored in dibosons at the LHC?, JHEP 10 (2015) 182 [arXiv:1507.00013] [INSPIRE].
J. Hisano, N. Nagata and Y. Omura, Interpretations of the ATLAS diboson resonances, Phys. Rev. D 92 (2015) 055001 [arXiv:1506.03931] [INSPIRE].
B.A. Dobrescu and Z. Liu, A W′ boson near 2 TeV: predictions for Run 2 of the LHC, arXiv:1506.06736 [INSPIRE].
T. Abe, T. Kitahara and M.M. Nojiri, Prospects for spin-1 resonance search at 13 TeV LHC and the ATLAS diboson excess, arXiv:1507.01681 [INSPIRE].
ATLAS collaboration, Search for dark matter in events with a hadronically decaying W or Z boson and missing transverse momentum in pp collisions at \( \sqrt{s}=8 \) TeV with the ATLAS detector, Phys. Rev. Lett. 112 (2014) 041802 [arXiv:1309.4017] [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 [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].
M. Cacciari, G.P. Salam and G. Soyez, The anti-k t jet clustering algorithm, JHEP 04 (2008) 063 [arXiv:0802.1189] [INSPIRE].
CMS collaboration, Search for new physics in the V/jet + MET final state, CMS-PAS-EXO-12-055 (2015).
Y.L. Dokshitzer, G.D. Leder, S. Moretti and B.R. Webber, Better jet clustering algorithms, JHEP 08 (1997) 001 [hep-ph/9707323] [INSPIRE].
J.M. Butterworth, A.R. Davison, M. Rubin and G.P. Salam, Jet substructure as a new Higgs search channel at the LHC, Phys. Rev. Lett. 100 (2008) 242001 [arXiv:0802.2470] [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].
J. Alwall, M. Herquet, F. Maltoni, O. Mattelaer and T. Stelzer, MadGraph 5: going beyond, JHEP 06 (2011) 128 [arXiv:1106.0522] [INSPIRE].
T. Sjöstrand, S. Mrenna and P.Z. Skands, PYTHIA 6.4 physics and manual, JHEP 05 (2006) 026 [hep-ph/0603175] [INSPIRE].
DELPHES 3 collaboration, J. de Favereau et al., DELPHES 3, a modular framework for fast simulation of a generic collider experiment, JHEP 02 (2014) 057 [arXiv:1307.6346] [INSPIRE].
M. Cacciari, G.P. Salam and G. Soyez, FastJet user manual, Eur. Phys. J. C 72 (2012) 1896 [arXiv:1111.6097] [INSPIRE].
M. Cacciari and G.P. Salam, Dispelling the N 3 myth for the k t jet-finder, Phys. Lett. B 641 (2006) 57 [hep-ph/0512210] [INSPIRE].
L. Randall and R. Sundrum, A large mass hierarchy from a small extra dimension, Phys. Rev. Lett. 83 (1999) 3370 [hep-ph/9905221] [INSPIRE].
D. Stump et al., Inclusive jet production, parton distributions and the search for new physics, JHEP 10 (2003) 046 [hep-ph/0303013] [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].
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Liew, S.P., Shirai, S. Testing ATLAS diboson excess with dark matter searches at LHC. J. High Energ. Phys. 2015, 191 (2015). https://doi.org/10.1007/JHEP11(2015)191
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DOI: https://doi.org/10.1007/JHEP11(2015)191