Abstract
Gauge mediated supersymmetry breaking (GMSB) is a theoretically well-motivated framework with rich and varied collider phenomenology. In this paper, we study the Tevatron limits and LHC discovery potential for a wide class of GMSB scenarios in which the next-to-lightest superpartner (NLSP) is a promptly-decaying neutralino. These scenarios give rise to signatures involving hard photons, W ’s, Z’s, jets and/or higgses, plus missing energy. In order to characterize these signatures, we define a small number of minimal spectra, in the context of General Gauge Mediation, which are parameterized by the mass of the NLSP and the gluino. Using these minimal spectra, we determine the most promising discovery channels for general neutralino NLSPs. We find that the 2010 dataset can already cover new ground with strong production for all NLSP types. With the upcoming 2011-2012 dataset, we find that the LHC will also have sensitivity to direct electroweak production of neutralino NLSPs.
Similar content being viewed by others
References
G. Giudice and R. Rattazzi, Theories with gauge mediated supersymmetry breaking, Phys. 322 (1999) 419 [hep-ph/9801271] [INSPIRE].
S. Dimopoulos, M. Dine, S. Raby and S.D. Thomas, Experimental signatures of low-energy gauge mediated supersymmetry breaking, Phys. Rev. Lett. 76 (1996) 3494 [hep-ph/9601367] [INSPIRE].
S. Dimopoulos, M. Dine, S. Raby, S.D. Thomas and J.D. Wells, Phenomenological implications of low-energy supersymmetry breaking, Nucl. Phys. Proc. Suppl. 52A (1997) 38 [hep-ph/9607450] [INSPIRE].
S. Dimopoulos, S.D. Thomas and J.D. Wells, Sparticle spectroscopy and electroweak symmetry breaking with gauge mediated supersymmetry breaking, Nucl. Phys. B 488 (1997) 39 [hep-ph/9609434] [INSPIRE].
S. Ambrosanio, G.D. Kribs and S.P. Martin, Signals for gauge mediated supersymmetry breaking models at the CERN LEP-2 collider, Phys. Rev. D 56 (1997) 1761 [hep-ph/9703211] [INSPIRE].
H. Baer, P. Mercadante, X. Tata and Y.-l. Wang, The reach of Tevatron upgrades in gauge mediated supersymmetry breaking models, Phys. Rev. D 60 (1999) 055001 [hep-ph/9903333] [INSPIRE].
K.T. Matchev and S.D. Thomas, Higgs and Z boson signatures of supersymmetry, Phys. Rev. D 62 (2000) 077702 [hep-ph/9908482] [INSPIRE].
SUSY Working Group collaboration, R.L. Culbertson et al., Low scale and gauge mediated supersymmetry breaking at the Fermilab Tevatron Run II, hep-ph/0008070 [INSPIRE].
P. Meade, N. Seiberg and D. Shih, General gauge mediation, Prog. Theor. Phys. Suppl. 177 (2009)143 [arXiv:0801.3278] [INSPIRE].
M. Buican, P. Meade, N. Seiberg and D. Shih, Exploring general gauge mediation, JHEP 03 (2009)016 [arXiv:0812.3668] [INSPIRE].
P. Meade, M. Reece and D. Shih, Prompt decays of general neutralino NLSPs at the Tevatron, JHEP 05 (2010) 105 [arXiv:0911.4130] [INSPIRE].
H. Baer, P.G. Mercadante, X. Tata and Y.-l. Wang, The reach of the CERN Large Hadron Collider for gauge mediated supersymmetry breaking models, Phys. Rev. D 62 (2000) 095007 [hep-ph/0004001] [INSPIRE].
P. Meade, M. Reece and D. Shih, Long-lived neutralino NLSPs, JHEP 10 (2010) 067 [arXiv:1006.4575] [INSPIRE].
J.T. Ruderman and D. Shih, Slepton co-NLSPs at the Tevatron, JHEP 11 (2010) 046 [arXiv:1009.1665] [INSPIRE].
L.M. Carpenter, Surveying the phenomenology of general gauge mediation, arXiv:0812.2051 [INSPIRE].
A. Rajaraman, Y. Shirman, J. Smidt and F. Yu, Parameter space of general gauge mediation, Phys. Lett. B 678 (2009) 367 [arXiv:0903.0668] [INSPIRE].
S. Abel, M.J. Dolan, J. Jaeckel and V.V. Khoze, Phenomenology of pure general gauge mediation, JHEP 12 (2009) 001 [arXiv:0910.2674] [INSPIRE].
A. Katz and B. Tweedie, Signals of a sneutrino (N)LSP at the LHC, Phys. Rev. D 81 (2010) 035012 [arXiv:0911.4132] [INSPIRE].
A. Katz and B. Tweedie, Leptophilic signals of a sneutrino (N)LSP and flavor biases from flavor-blind SUSY, Phys. Rev. D 81 (2010) 115003 [arXiv:1003.5664] [INSPIRE].
S. Abel, M.J. Dolan, J. Jaeckel and V.V. Khoze, Pure general gauge mediation for early LHC searches, JHEP 12 (2010) 049 [arXiv:1009.1164] [INSPIRE].
A.M. Thalapillil, Low-energy observables and general gauge mediation in the MSSM and NMSSM, JHEP 06 (2011) 059 [arXiv:1012.4829] [INSPIRE].
J. Jaeckel, V.V. Khoze and C. Wymant, Mass sum rules and the role of the messenger scale in general gauge mediation, JHEP 04 (2011) 126 [arXiv:1102.1589] [INSPIRE].
J. Jaeckel, V.V. Khoze and C. Wymant, RG invariants, unification and the role of the messenger scale in general gauge mediation, JHEP 05 (2011) 132 [arXiv:1103.1843] [INSPIRE].
H. Baer, P.G. Mercadante, F. Paige, X. Tata and Y. Wang, LHC reach for gauge mediated supersymmetry breaking models via prompt photon channels, Phys. Lett. B 435 (1998) 109 [hep-ph/9806290] [INSPIRE].
E. Nakamura and S. Shirai, Discovery potential for low-scale gauge mediation at early LHC, JHEP 03 (2011) 115 [arXiv:1010.5995] [INSPIRE].
M. Dine and A.E. Nelson, Dynamical supersymmetry breaking at low-energies, Phys. Rev. D 48 (1993) 1277 [hep-ph/9303230] [INSPIRE].
M. Dine, A.E. Nelson and Y. Shirman, Low-energy dynamical supersymmetry breaking simplified, Phys. Rev. D 51 (1995) 1362 [hep-ph/9408384] [INSPIRE].
M. Dine, A.E. Nelson, Y. Nir and Y. Shirman, New tools for low-energy dynamical supersymmetry breaking, Phys. Rev. D 53 (1996) 2658 [hep-ph/9507378] [INSPIRE].
S. Dube, J. Glatzer, S. Somalwar, A. Sood and S. Thomas, Addressing the multi-channel inverse problem at high energy colliders: a model independent approach to the search for new physics with trileptons, J. Phys. G 39 (2012) 085004 [arXiv:0808.1605] [INSPIRE].
J. Alwall, M.-P. Le, M. Lisanti and J.G. Wacker, Model-independent jets plus missing energy searches, Phys. Rev. D 79 (2009) 015005 [arXiv:0809.3264] [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].
D.S. Alves, E. Izaguirre and J.G. Wacker, Where the sidewalk ends: jets and missing energy search strategies for the 7 TeV LHC, JHEP 10 (2011) 012 [arXiv:1102.5338] [INSPIRE].
LHC New Physics Working Group collaboration, D. Alves et al., Simplified models for LHC new physics searches, arXiv:1105.2838 [INSPIRE].
D0 collaboration, V.M. Abazov et al., Search for diphoton events with large missing transverse energy in 6.3 fb −1 of \( p\overline p \) collisions at \( \sqrt {s} = 1.96\;\;TeV \), Phys. Rev. Lett. 105 (2010) 221802 [arXiv:1008.2133] [INSPIRE].
CDF collaboration, A. Abulencia et al., Search for new physics in lepton + photon + X events with 929 pb −1 of \( p\overline p \) collisions at \( \sqrt {s} = 1.96\;\;TeV \), Phys. Rev. D 75 (2007) 112001 [hep-ex/0702029] [INSPIRE].
D0 collaboration, V. Abazov et al., Search for squarks and gluinos in events with jets and missing transverse energy using 2.1 fb −1 of \( p\overline p \) collision data at \( \sqrt {s} = 1.96\;\;TeV \), Phys. Lett. B 660 (2008)449 [arXiv:0712.3805] [INSPIRE].
CDF collaboration, Search for gaugino production in the W + Z + missing transverse energy final state, CDF Public Note 9791.
CMS collaboration, S. Chatrchyan et al., Search for supersymmetry in pp collisions at \( \sqrt {s} = 7\;\;TeV \) in events with two photons and missing transverse energy,Phys. Rev. Lett. 106 (2011) 211802 [arXiv:1103.0953] [INSPIRE].
CMS collaboration, V. Khachatryan et al., Search for supersymmetry in pp collisions at 7 TeV in events with jets and missing transverse energy, Phys. Lett. B 698 (2011) 196 [arXiv:1101.1628] [INSPIRE].
ATLAS collaboration, G. Aad et al., Search for squarks and gluinos using final states with jets and missing transverse momentum with the ATLAS detector in \( \sqrt {s} = 7\;\;TeV \) proton-proton collisions, Phys. Lett. B 701 (2011) 186 [arXiv:1102.5290] [INSPIRE].
ATLAS collaboration, G. Aad et al., Search for supersymmetry using final states with one lepton, jets and missing transverse momentum with the ATLAS detector in \( \sqrt {s} = 7\;\;TeV \) pp, Phys. Rev. Lett. 106 (2011) 131802 [arXiv:1102.2357] [INSPIRE].
J. Thaler and Z. Thomas, Goldstini can give the Higgs a boost, JHEP 07 (2011) 060 [arXiv:1103.1631] [INSPIRE].
S.P. Martin and P. Ramond, Sparticle spectrum constraints, Phys. Rev. D 48 (1993) 5365 [hep-ph/9306314] [INSPIRE].
W. Beenakker, R. Hopker, M. Spira and P. Zerwas, Squark and gluino production at hadron colliders, Nucl. Phys. B 492 (1997) 51 [hep-ph/9610490] [INSPIRE].
W. Beenakker et al., The production of charginos/neutralinos and sleptons at hadron colliders, Phys. Rev. Lett. 83 (1999) 3780 [Erratum ibid. 100 (2008) 029901] [hep-ph/9906298] [INSPIRE].
T. Sjöstrand, S. Mrenna and P.Z. Skands, PYTHIA 6.4 physics and manual, JHEP 05 (2006) 026 [hep-ph/0603175] [INSPIRE].
J. Conway, PGS: Pretty Good Simulator, http://physics.ucdavis.edu/˜conway/research/ software/pgs/pgs4-general.htm.
CMS collaboration, Data-driven background estimates for SUSY di-photon searches CMS-PAS-SUS-09-004 (2009).
T. Junk, Confidence level computation for combining searches with small statistics, Nucl. Instrum. Meth. A 434 (1999) 435 [hep-ex/9902006] [INSPIRE].
CDF collaboration, A. Abulencia et al., Inclusive search for new physics with like-sign dilepton events in pp collisions at \( \sqrt {s} = 1.96\;\;TeV \), Phys. Rev. Lett. 98 (2007) 221803 [hep-ex/0702051] [INSPIRE].
J. Alwall et al., MadGraph/MadEvent v4: the new web generation, JHEP 09 (2007) 028 [arXiv:0706.2334] [INSPIRE].
M. Muhlleitner, A. Djouadi and Y. Mambrini, SDECAY: a Fortran code for the decays of the supersymmetric particles in the MSSM, Comput. Phys. Commun. 168 (2005) 46 [hep-ph/0311167] [INSPIRE].
J.M. Campbell and R. Ellis, MCFM for the Tevatron and the LHC, Nucl. Phys. Proc. Suppl. 205-206 (2010) 10 [arXiv:1007.3492] [INSPIRE].
ATLAS collaboration, SUSY Searches at ATLAS in multilepton final states with jets and missing transverse energy, ATLAS-CONF-2011-039 (2011).
CMS collaboration, S. Chatrchyan et al., Search for physics beyond the standard model in opposite-sign dilepton events at \( \sqrt {s} = 7\;\;TeV \), JHEP 06 (2011) 026 [arXiv:1103.1348] [INSPIRE].
Author information
Authors and Affiliations
Corresponding author
Additional information
ArXiv ePrint: 1103.6083
Rights and permissions
About this article
Cite this article
Ruderman, J.T., Shih, D. General neutralino NLSPs at the early LHC. J. High Energ. Phys. 2012, 159 (2012). https://doi.org/10.1007/JHEP08(2012)159
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1007/JHEP08(2012)159