Abstract
Simplified models are an important tool for the interpretation of searches for new physics at the LHC. They are defined by a small number of new particles together with a specific production and decay pattern. The simplified models adopted in the experimental analyses thus far have been derived from supersymmetric theories, and they have been used to set limits on supersymmetric particle masses. We investigate the applicability of such simplified supersymmetric models to a wider class of new physics scenarios, in particular those with same-spin Standard Model partners. We focus on the pair production of quark partners and analyze searches for jets and missing energy within a simplified supersymmetric model with scalar quarks and a simplified model with spin-1/2 quark partners. Despite sizable differences in the detection efficiencies due to the spin of the new particles, the limits on particle masses are found to be rather similar. We conclude that the supersymmetric simplified models employed in current experimental analyses also provide a reliable tool to constrain same-spin BSM scenarios.
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References
D. Alves et al., Simplified Models for LHC New Physics Searches, J. Phys. G 39 (2012) 105005 [arXiv:1105.2838] [INSPIRE].
J. Alwall, P. Schuster and N. Toro, Simplified Models for a First Characterization of New Physics at the LHC, Phys. Rev. D 79 (2009) 075020 [arXiv:0810.3921] [INSPIRE].
CMS collaboration, Interpretation of Searches for Supersymmetry with simplified Models, Phys. Rev. D 88 (2013) 052017 [arXiv:1301.2175] [INSPIRE].
S. Kraml et al., SModelS: a tool for interpreting simplified-model results from the LHC and its application to supersymmetry, Eur. Phys. J. C 74 (2014) 2868 [arXiv:1312.4175] [INSPIRE].
S. Kraml et. al., SModelS v1.0: a short user guide, LPSC14295 (2014) [HEPHY-PUB-945-14] [arXiv:1412.1745] [INSPIRE].
M. Papucci, K. Sakurai, A. Weiler and L. Zeune, Fastlim: a fast LHC limit calculator, Eur. Phys. J. C 74 (2014) 3163 [arXiv:1402.0492] [INSPIRE].
A. Buckley, PySLHA: a Pythonic interface to SUSY Les Houches Accord data, arXiv:1305.4194 [INSPIRE].
W. Beenakker, R. Hopker, M. Spira and P.M. Zerwas, Squark and gluino production at hadron colliders, Nucl. Phys. B 492 (1997) 51 [hep-ph/9610490] [INSPIRE].
T. Sjöstrand, S. Mrenna and P.Z. Skands, PYTHIA 6.4 Physics and Manual, JHEP 05 (2006) 026 [hep-ph/0603175] [INSPIRE].
CMS collaboration, Search for supersymmetry in hadronic final states with missing transverse energy using the variables α T and b-quark multiplicity in pp collisions at \( \sqrt{s}=8 \) TeV, Eur. Phys. J. C 73 (2013) 2568 [arXiv:1303.2985] [INSPIRE].
CMS collaboration, Search for new physics in the multijet and missing transverse momentum final state in proton-proton collisions at \( \sqrt{s}=8 \) TeV, JHEP 06 (2014) 055 [arXiv:1402.4770] [INSPIRE].
CMS collaboration, Search for supersymmetry in hadronic final states using MT2 with the CMS detector at \( \sqrt{s}=8 \) TeV, CMS-PAS-SUS-13-019 (2014) [INSPIRE].
ATLAS collaboration, Search for squarks and gluinos with the ATLAS detector in final states with jets and missing transverse momentum and 20.3 fb −1 of \( \sqrt{s}=8 \) TeV proton-proton collision data, ATLAS-CONF-2013-047 (2013) [ATLAS-COM-CONF-2013-049] [INSPIRE].
L. Edelhäuser, J. Heisig, M. Krämer, L. Oymanns and J. Sonneveld, Constraining supersymmetry at the LHC with simplified models for squark production, JHEP 12 (2014) 022 [arXiv:1410.0965] [INSPIRE].
T. Appelquist, H.-C. Cheng and B.A. Dobrescu, Bounds on universal extra dimensions, Phys. Rev. D 64 (2001) 035002 [hep-ph/0012100] [INSPIRE].
D. Hooper and S. Profumo, Dark matter and collider phenomenology of universal extra dimensions, Phys. Rept. 453 (2007) 29 [hep-ph/0701197] [INSPIRE].
G. Servant and T.M.P. Tait, Is the lightest Kaluza-Klein particle a viable dark matter candidate?, Nucl. Phys. B 650 (2003) 391 [hep-ph/0206071] [INSPIRE].
G. Servant and T.M.P. Tait, Elastic scattering and direct detection of Kaluza-Klein dark matter, New J. Phys. 4 (2002) 99 [hep-ph/0209262] [INSPIRE].
H.P. Nilles, Supersymmetry, Supergravity and Particle Physics, Phys. Rept. 110 (1984) 1 [INSPIRE].
G. Cacciapaglia, A. Deandrea, J. Ellis, J. Marrouche and L. Panizzi, LHC Missing-Transverse-Energy Constraints on Models with Universal Extra Dimensions, Phys. Rev. D 87 (2013) 075006 [arXiv:1302.4750] [INSPIRE].
A. Datta, A. Datta and S. Poddar, Enriching the exploration of the mUED model with event shape variables at the CERN LHC, Phys. Lett. B 712 (2012) 219 [arXiv:1111.2912] [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. Edelhäuser, T. Flacke and M. Krämer, Constraints on models with universal extra dimensions from dilepton searches at the LHC, JHEP 08 (2013) 091 [arXiv:1302.6076] [INSPIRE].
N.D. Christensen and C. Duhr, FeynRules — Feynman rules made easy, Comput. Phys. Commun. 180 (2009) 1614 [arXiv:0806.4194] [INSPIRE].
N.D. Christensen et al., A Comprehensive approach to new physics simulations, Eur. Phys. J. C 71 (2011) 1541 [arXiv:0906.2474] [INSPIRE].
A. Datta, K. Kong and K.T. Matchev, Minimal Universal Extra Dimensions in CalcHEP/CompHEP New J. Phys. 12 (2010) 075017 [arXiv:1002.4624] [INSPIRE].
H.-C. Cheng, K.T. Matchev and M. Schmaltz, Bosonic supersymmetry? Getting fooled at the CERN LHC, Phys. Rev. D 66 (2002) 056006 [hep-ph/0205314] [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].
L. Moneta et al., The RooStats Project, PoS(ACAT2010)057 [arXiv:1009.1003] [INSPIRE].
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ArXiv ePrint: 1501.03942
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Edelhäuser, L., Krämer, M. & Sonneveld, J. Simplified models for same-spin new physics scenarios. J. High Energ. Phys. 2015, 146 (2015). https://doi.org/10.1007/JHEP04(2015)146
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DOI: https://doi.org/10.1007/JHEP04(2015)146