Abstract
We apply data taken at the e+e− collider LEP in the 1990’s at center-of-mass energy up to 209 GeV to constrain Dark Matter models with a light leptophobic spin−1 mediator R. We assume that the dark sector particle (DSP) is a spin−1/2 fermion χ. This scenario is well studied in the context of LHC searches for mediator mass from 100 GeV to several TeV. Emission of the mediator off a quark or antiquark at LEP gives rise to di-jet plus missing energy and 4−jet signatures, which we use to limit the relevant couplings. We focus on scenarios with 2mχ > mR, which are poorly constrained by LHC data. We recast published searches by the ALEPH collaboration. For mχ ≲ 20 GeV the best bounds result from an analysis at \( \sqrt{s} \) ≃ MZ of di-jet plus missing energy events. For heavier DSP but mR ≲ 70 GeV meaningful bounds can be derived from a four jet analysis at \( \sqrt{s}=183 \) GeV. Unfortunately published searches using four jet final states at \( \sqrt{s} \) ≃ MZ use only a small fraction of the total data sample. Moreover, all published searches for di-jet plus missing energy final states at \( \sqrt{s}\ge 130 \) GeV have poor efficiency for our model; we therefore design new cuts that combine good background rejection with higher efficiency. Re-analyzing the higher energy data using our new cuts, and an analysis of the complete four jet data sample taken at \( \sqrt{s} \) ≃ MZ, can explore new regions of parameter space.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
J.L. Feng, Dark Matter Candidates from Particle Physics and Methods of Detection, Ann. Rev. Astron. Astrophys. 48 (2010) 495 [arXiv:1003.0904] [INSPIRE].
S. Banerjee, S. Matsumoto, K. Mukaida and Y.-L.S. Tsai, WIMP Dark Matter in a Well-Tempered Regime: A case study on Singlet-Doublets Fermionic WIMP, JHEP 11 (2016) 070 [arXiv:1603.07387] [INSPIRE].
M. Hoferichter, P. Klos, J. Menéndez and A. Schwenk, Improved limits for Higgs-portal dark matter from LHC searches, Phys. Rev. Lett. 119 (2017) 181803 [arXiv:1708.02245] [INSPIRE].
GAMBIT collaboration, P. Athron et al., Status of the scalar singlet dark matter model, Eur. Phys. J. C 77 (2017) 568 [arXiv:1705.07931] [INSPIRE].
A. DiFranzo, K.I. Nagao, A. Rajaraman and T.M.P. Tait, Simplified Models for Dark Matter Interacting with Quarks, JHEP 11 (2013) 014 [Erratum ibid. 01 (2014) 162] [arXiv:1308.2679] [INSPIRE].
J. Abdallah et al., Simplified Models for Dark Matter Searches at the LHC, Phys. Dark Univ. 9–10 (2015) 8.
G. Busoni et al., Recommendations on presenting LHC searches for missing transverse energy signals using simplified s-channel models of dark matter, arXiv:1603.04156 [INSPIRE].
ATLAS collaboration, Search for dark matter and other new phenomena in events with an energetic jet and large missing transverse momentum using the ATLAS detector, JHEP 01 (2018) 126 [arXiv:1711.03301] [INSPIRE].
CMS collaboration, Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at \( \sqrt{s}=13 \) TeV, JHEP 07 (2017) 014 [arXiv:1703.01651] [INSPIRE].
CMS collaboration, Search for dijet resonances in proton-proton collisions at \( \sqrt{s}=13 \) TeV and constraints on dark matter and other models, Phys. Lett. B 769 (2017) 520 [Erratum ibid. B 772 (2017) 882] [arXiv:1611.03568] [INSPIRE].
ATLAS collaboration, Search for new phenomena in dijet events using 37 fb −1 of pp collision data collected at \( \sqrt{s}=13 \) TeV with the ATLAS detector, Phys. Rev. D 96 (2017) 052004 [arXiv:1703.09127] [INSPIRE].
ATLAS collaboration, Search for low-mass dijet resonances using trigger-level jets with the ATLAS detector in pp collisions at \( \sqrt{s}=13 \) TeV, Phys. Rev. Lett. 121 (2018) 081801 [arXiv:1804.03496] [INSPIRE].
ATLAS and CMS collaborations, M. Bauce, Search for new physics in dijet final states in ATLAS and CMS, in 5th Large Hadron Collider Physics Conference (LHCP 2017) Shanghai, China, May 15–20, 2017, arXiv:1709.04754 [INSPIRE].
K.S. Babu, C.F. Kolda and J. March-Russell, Implications of generalized Z-Z′ mixing, Phys. Rev. D 57 (1998) 6788 [hep-ph/9710441] [INSPIRE].
E. Dudas, Y. Mambrini, S. Pokorski and A. Romagnoni, (In)visible Z′ and dark matter, JHEP 08 (2009) 014 [arXiv:0904.1745] [INSPIRE].
E. Accomando, A. Belyaev, L. Fedeli, S.F. King and C. Shepherd-Themistocleous, Z′ physics with early LHC data, Phys. Rev. D 83 (2011) 075012 [arXiv:1010.6058] [INSPIRE].
P.J. Fox, J. Liu, D. Tucker-Smith and N. Weiner, An Effective Z′, Phys. Rev. D 84 (2011) 115006 [arXiv:1104.4127] [INSPIRE].
M.T. Frandsen, F. Kahlhoefer, S. Sarkar and K. Schmidt-Hoberg, Direct detection of dark matter in models with a light Z′, JHEP 09 (2011) 128 [arXiv:1107.2118] [INSPIRE].
A. Alves, S. Profumo and F.S. Queiroz, The dark Z′ portal: direct, indirect and collider searches, JHEP 04 (2014) 063 [arXiv:1312.5281] [INSPIRE].
G. Jungman, M. Kamionkowski and K. Griest, Supersymmetric dark matter, Phys. Rept. 267 (1996) 195 [hep-ph/9506380] [INSPIRE].
GAMBIT collaboration, A. Kvellestad, First SUSY results with GAMBIT, PoS(EPS-HEP2017)299 [arXiv:1710.02503] [INSPIRE].
E. Bagnaschi et al., Likelihood Analysis of the pMSSM11 in Light of LHC 13-TeV Data, Eur. Phys. J. C 78 (2018) 256 [arXiv:1710.11091] [INSPIRE].
M.T. Frandsen, F. Kahlhoefer, A. Preston, S. Sarkar and K. Schmidt-Hoberg, LHC and Tevatron Bounds on the Dark Matter Direct Detection Cross-Section for Vector Mediators, JHEP 07 (2012) 123 [arXiv:1204.3839] [INSPIRE].
E.W. Kolb and M.S. Turner, The Early Universe, Front. Phys. 69 (1990) 1 [INSPIRE].
F. Kahlhoefer, K. Schmidt-Hoberg, T. Schwetz and S. Vogl, Implications of unitarity and gauge invariance for simplified dark matter models, JHEP 02 (2016) 016 [arXiv:1510.02110] [INSPIRE].
ALEPH collaboration, D. Decamp et al., ALEPH: A detector for electron-positron annnihilations at LEP, Nucl. Instrum. Meth. A 294 (1990) 121 [Erratum ibid. A 303 (1991) 393] [INSPIRE].
ALEPH collaboration, D. Buskulic et al., Performance of the ALEPH detector at LEP, Nucl. Instrum. Meth. A 360 (1995) 481 [INSPIRE].
J. Alwall, M. Herquet, F. Maltoni, O. Mattelaer and T. Stelzer, MadGraph 5: Going Beyond, JHEP 06 (2011) 128 [arXiv:1106.0522] [INSPIRE].
M. Chala, F. Kahlhoefer, M. McCullough, G. Nardini and K. Schmidt-Hoberg, Constraining Dark Sectors with Monojets and Dijets, JHEP 07 (2015) 089 [arXiv:1503.05916] [INSPIRE].
Particle Data Group collaboration, C. Patrignani et al., Review of Particle Physics, Chin. Phys. C 40 (2016) 100001 [INSPIRE].
PandaX-II collaboration, A. Tan et al., Dark Matter Results from First 98.7 Days of Data from the PandaX-II Experiment, Phys. Rev. Lett. 117 (2016) 121303 [arXiv:1607.07400] [INSPIRE].
CRESST collaboration, G. Angloher et al., Results on light dark matter particles with a low-threshold CRESST-II detector, Eur. Phys. J. C 76 (2016) 25 [arXiv:1509.01515] [INSPIRE].
PICO collaboration, C. Amole et al., Dark Matter Search Results from the PICO-60 C 3 F 8 Bubble Chamber, Phys. Rev. Lett. 118 (2017) 251301 [arXiv:1702.07666] [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, C. Duhr, B. Fuks, D. Grellscheid, O. Mattelaer and T. Reiter, UFO — The Universal FeynRules Output, Comput. Phys. Commun. 183 (2012) 1201 [arXiv:1108.2040] [INSPIRE].
T. Sjöstrand et al., An Introduction to PYTHIA 8.2, Comput. Phys. Commun. 191 (2015) 159 [arXiv:1410.3012] [INSPIRE].
ALEPH collaboration, R. Barate et al., Searches for sleptons and squarks in e + e − collisions at 189 GeV, Phys. Lett. B 469 (1999) 303 [INSPIRE].
ALEPH collaboration, A. Heister et al., Search for stable hadronizing squarks and gluinos in e + e − collisions up to \( \sqrt{s}=209 \) GeV, Eur. Phys. J. C 31 (2003) 327 [hep-ex/305071] [INSPIRE].
ALEPH collaboration, R. Barate et al., Searches for charginos and neutralinos in e + e − collisions at \( \sqrt{s}=161 \) GeV and 172 GeV, Eur. Phys. J. C 2 (1998) 417 [hep-ex/9710012] [INSPIRE].
ALEPH collaboration, R. Barate et al., Search for charginos and neutralinos in e + e − collisions at center-of-mass energies near 183 GeV and constraints on the MSSM parameter space, Eur. Phys. J. C 11 (1999) 193 [INSPIRE].
ALEPH collaboration, R. Barate et al., Search for supersymmetric particles in e + e − collisions at \( \sqrt{s} \) up to 202 GeV and mass limit for the lightest neutralino, Phys. Lett. B 499 (2001) 67 [hep-ex/0011047] [INSPIRE].
OPAL collaboration, G. Abbiendi et al., Search for chargino and neutralino production at \( \sqrt{s}=189 \) GeV at LEP, Eur. Phys. J. C 14 (2000) 187 [Erratum ibid. C 16 (2000) 707] [hep-ex/9909051] [INSPIRE].
ALEPH collaboration, A. Heister et al., Absolute mass lower limit for the lightest neutralino of the MSSM from e + e − data at \( \sqrt{s} \) up to 209 GeV, Phys. Lett. B 583 (2004) 247 [INSPIRE].
ALEPH collaboration, R. Barate et al., Search for invisible Higgs boson decays in e + e − collisions at center-of-mass energies up to 184 GeV, Phys. Lett. B 450 (1999) 301 [INSPIRE].
L3 collaboration, M. Acciarri et al., Missing mass spectra in hadronic events from e + e − collisions at \( \sqrt{s}=161 \) GeV – 172 GeV and limits on invisible Higgs decay, Phys. Lett. B 418 (1998) 389 [INSPIRE].
ALEPH collaboration, R. Barate et al., Search for an invisibly decaying Higgs boson in e + e − collisions at 189 GeV, Phys. Lett. B 466 (1999) 50 [INSPIRE].
P.J. Fox, R. Harnik, J. Kopp and Y. Tsai, Missing Energy Signatures of Dark Matter at the LHC, Phys. Rev. D 85 (2012) 056011 [arXiv:1109.4398] [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].
ALEPH collaboration, D. Decamp et al., Searches for new particles in Z decays using the ALEPH detector, Phys. Rept. 216 (1992) 253 [INSPIRE].
ALEPH collaboration, D. Buskulic et al., Mass limit for the standard model Higgs boson with the full LEP-1 ALEPH data sample, Phys. Lett. B 384 (1996) 427 [INSPIRE].
ALEPH collaboration, D. Buskulic et al., Four jet final state production in e + e − collisions at center-of-mass energies of 130 GeV and 136 GeV, Z. Phys. C 71 (1996) 179 [INSPIRE].
ALEPH collaboration, R. Barate et al., Four jet final state production in e + e − collisions at center-of-mass energies ranging from 130 GeV to 184 GeV, Phys. Lett. B 420 (1998) 196 [INSPIRE].
ALEPH collaboration, R. Barate et al., Search for the neutral Higgs bosons of the MSSM in e + e − collisions at \( \sqrt{s} \) from 130 GeV to 172 GeV, Phys. Lett. B 412 (1997) 173 [INSPIRE].
ALEPH collaboration, R. Barate et al., Search for the Standard Model Higgs boson in e + e − collisions at \( \sqrt{s}=161 \) GeV, 170 GeV and 172 GeV, Phys. Lett. B 412 (1997) 155 [INSPIRE].
ALEPH collaboration, R. Barate et al., Search for the standard model Higgs boson at the LEP-2 collider near \( \sqrt{s}=183 \) GeV, Phys. Lett. B 440 (1998) 403 [hep-ex/9811032] [INSPIRE].
ALEPH collaboration, R. Barate et al., Search for the neutral Higgs bosons of the standard model and the MSSM in e + e − collisions at \( \sqrt{s}=189 \) GeV, Eur. Phys. J. C 17 (2000) 223 [INSPIRE].
ALEPH collaboration, J. Nielsen, Search for neutral Higgs bosons in e + e − collisions at \( \sqrt{s} \) less than = 196 GeV, in Lepton and photon interactions at high energies. Proceedings, 19th International Symposium, LP’99, Stanford, U.S.A., August 9–14, 1999, hep-ex/9908016 [INSPIRE].
ALEPH collaboration, R. Barate et al., Searches for neutral Higgs bosons in e + e − collisions at center-of-mass energies from 192 GeV to 202 GeV, Phys. Lett. B 499 (2001) 53 [hep-ex/0010062] [INSPIRE].
ALEPH collaboration, R. Barate et al., Observation of an excess in the search for the standard model Higgs boson at ALEPH, Phys. Lett. B 495 (2000) 1 [hep-ex/0011045] [INSPIRE].
ALEPH collaboration, A. Heister et al., Final results of the searches for neutral Higgs bosons in e + e − collisions at \( \sqrt{s} \) up to 209 GeV, Phys. Lett. B 526 (2002) 191 [hep-ex/0201014] [INSPIRE].
ALEPH collaboration, D. Decamp et al., Search for the neutral Higgs bosons of the MSSM and other two doublet models, Phys. Lett. B 265 (1991) 475 [INSPIRE].
M. Duerr and P. Fileviez Perez, Theory for Baryon Number and Dark Matter at the LHC, Phys. Rev. D 91 (2015) 095001 [arXiv:1409.8165] [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: 1805.02780
Rights and permissions
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, 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 licence, and indicate if changes were made.
The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/.
About this article
Cite this article
Drees, M., Zhang, Z. Constraints on a light leptophobic mediator from LEP data. J. High Energ. Phys. 2018, 194 (2018). https://doi.org/10.1007/JHEP08(2018)194
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/JHEP08(2018)194