Abstract
Baryonic R-parity violation could explain why low-scale supersymmetry has not yet been discovered at colliders: sparticles would be hidden in the intense hadronic activity. However, if the known flavor structures are any guide, the largest baryon number violating couplings are those involving the top/stop, so a copious production of same-sign top-quark pairs is in principle possible. Such a signal, with its low irreducible background and efficient identification through same-sign dileptons, provides us with tell-tale signs of baryon number violating supersymmetry. Interestingly, this statement is mostly independent of the details of the supersymmetric mass spectrum. So, in this paper, after analyzing the sparticle decay chains and lifetimes, we formulate a simplified benchmark strategy that covers most supersymmetric scenarios. We then use this information to interpret the samesign dilepton searches of CMS, draw approximate bounds on the gluino and squark masses, and extrapolate the reach of the future 14 TeV runs.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
https://twiki.cern.ch/twiki/bin/view/AtlasPublic/SupersymmetryPublicResults.
https://twiki.cern.ch/twiki/bin/view/CMSPublic/PhysicsResultsSUS.
R. Barbier et al., R-parity violating supersymmetry, Phys. Rept. 420 (2005) 1 [hep-ph/0406039] [INSPIRE].
Particle Data Group collaboration, J. Beringer et al., Review of Particle Physics (RPP), Phys. Rev. D 86 (2012) 010001 [INSPIRE].
E. Nikolidakis and C. Smith, Minimal Flavor Violation, Seesaw and R-parity, Phys. Rev. D 77 (2008) 015021 [arXiv:0710.3129] [INSPIRE].
C. Smith, Proton stability from a fourth family, Phys. Rev. D 85 (2012) 036005 [arXiv:1105.1723] [INSPIRE].
L. Hall and L. Randall, Weak scale effective supersymmetry, Phys. Rev. Lett. 65 (1990) 2939 [INSPIRE].
G. D’Ambrosio, G. Giudice, G. Isidori and A. Strumia, Minimal flavor violation: An effective field theory approach, Nucl. Phys. B 645 (2002) 155 [hep-ph/0207036] [INSPIRE].
C. Csáki, Y. Grossman and B. Heidenreich, MFV SUSY: A Natural Theory for R-Parity Violation, Phys. Rev. D 85 (2012) 095009 [arXiv:1111.1239] [INSPIRE].
G. Krnjaic and D. Stolarski, Gauging the Way to MFV, JHEP JHEP04 (2013) 064 [arXiv:1212.4860] [INSPIRE].
R. Franceschini and R. Mohapatra, New Patterns of Natural R-Parity Violation with Supersymmetric Gauged Flavor, JHEP 04 (2013) 098 [arXiv:1301.3637] [INSPIRE].
C. Csáki and B. Heidenreich, A Complete Model for R-parity Violation, arXiv:1302.0004 [INSPIRE].
B. Allanach, A. Dedes and H. Dreiner, R parity violating minimal supergravity model, Phys. Rev. D 69 (2004) 115002 [Erratum ibid. D 72 (2005) 079902] [hep-ph/0309196] [INSPIRE].
G. Durieux, J.-M. Gerard, F. Maltoni and C. Smith, Three-generation baryon and lepton number violation at the LHC, Phys. Lett. B 721 (2013) 82 [arXiv:1210.6598] [INSPIRE].
B. Allanach and B. Gripaios, Hide and Seek With Natural Supersymmetry at the LHC, JHEP 05 (2012) 062 [arXiv:1202.6616] [INSPIRE].
M. Asano, K. Rolbiecki and K. Sakurai, Can R-parity violation hide vanilla supersymmetry at the LHC?, JHEP 01 (2013) 128 [arXiv:1209.5778] [INSPIRE].
J. Berger, M. Perelstein, M. Saelim and P. Tanedo, The Same-Sign Dilepton Signature of RPV/MFV SUSY, JHEP 04 (2013) 077 [arXiv:1302.2146] [INSPIRE].
D. Choudhury, M. Datta and M. Maity, Search for the lightest scalar top quark in R-parity violating decays at the LHC, JHEP 10 (2011) 004 [arXiv:1106.5114] [INSPIRE].
J.A. Evans and Y. Kats, LHC Coverage of RPV MSSM with Light Stops, JHEP 04 (2013) 028 [arXiv:1209.0764] [INSPIRE].
Z. Han, A. Katz, M. Son and B. Tweedie, Boosting Searches for Natural SUSY with RPV via Gluino Cascades, Phys. Rev. D 87 (2013) 075003 [arXiv:1211.4025] [INSPIRE].
R. Franceschini and R. Torre, RPV stops bump off the background, Eur. Phys. J. C 73 (2013) 2422 [arXiv:1212.3622] [INSPIRE].
CMS collaboration, Search for three-jet resonances in pp collisions at \( \sqrt{s}=7 \) TeV, Phys. Lett. B 718 (2012) 329 [arXiv:1208.2931] [INSPIRE].
ATLAS collaboration, Search for pair production of massive particles decaying into three quarks with the ATLAS detector in \( \sqrt{s}=7 \) TeV pp collisions at the LHC, JHEP 12 (2012) 086 [arXiv:1210.4813] [INSPIRE].
M. Fairbairn, A. Kraan, D. Milstead, T. Sjöstrand, P.Z. Skands and T. Sloan, Stable massive particles at colliders, Phys. Rept. 438 (2007) 1 [hep-ph/0611040] [INSPIRE].
ATLAS collaboration, Searches for Heavy Long-Lived Sleptons and R-hadrons with the ATLAS detector in pp collisions at \( \sqrt{s}=7 \) TeV, ATLAS-CONF-2012-075 (2012).
N. Arkani-Hamed and S. Dimopoulos, Supersymmetric unification without low energy supersymmetry and signatures for fine-tuning at the LHC, JHEP 06 (2005) 073 [hep-th/0405159] [INSPIRE].
G. Giudice and A. Romanino, Split supersymmetry, Nucl. Phys. B 699 (2004) 65 [Erratum ibid. B 706 (2005) 65-89] [hep-ph/0406088] [INSPIRE].
M. Buchkremer and A. Schmidt, Long-lived heavy quarks: a review, Adv. High Energy Phys. 2013 (2013) 690254 [arXiv:1210.6369] [INSPIRE].
J. Andrea, B. Fuks and F. Maltoni, Monotops at the LHC, Phys. Rev. D 84 (2011) 074025 [arXiv:1106.6199] [INSPIRE].
G. Colangelo, E. Nikolidakis and C. Smith, Supersymmetric models with minimal flavour violation and their running, Eur. Phys. J. C 59 (2009) 75 [arXiv:0807.0801] [INSPIRE].
A. Arbey, M. Battaglia, A. Djouadi, F. Mahmoudi and J. Quevillon, Implications of a 125 GeV Higgs for supersymmetric models, Phys. Lett. B 708 (2012) 162 [arXiv:1112.3028] [INSPIRE].
D. Berdine, N. Kauer and D. Rainwater, Breakdown of the Narrow Width Approximation for New Physics, Phys. Rev. Lett. 99 (2007) 111601 [hep-ph/0703058] [INSPIRE].
S. Choi, M. Drees, A. Freitas and P. Zerwas, Testing the Majorana Nature of Gluinos and Neutralinos, Phys. Rev. D 78 (2008) 095007 [arXiv:0808.2410] [INSPIRE].
N.D. Christensen and C. Duhr, FeynRules - Feynman rules made easy, Comput. Phys. Commun. 180 (2009) 1614 [arXiv:0806.4194] [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. Krämer et al., Supersymmetry production cross sections in pp collisions at \( \sqrt{s}=7 \) TeV, arXiv:1206.2892 [INSPIRE].
https://twiki.cern.ch/twiki/bin/view/LHCPhysics/SUSYCross sections.
CMS collaboration, Search for new physics in events with same-sign dileptons and b-tagged jets in pp collisions at \( \sqrt{s}=7 \) TeV, JHEP 08 (2012) 110 [arXiv:1205.3933] [INSPIRE].
CMS collaboration, Search for new physics in events with same-sign dileptons and b jets in pp collisions at \( \sqrt{s}=8 \) TeV, JHEP 03 (2013) 037 [Erratum ibid. 1307 (2013) 041] [arXiv:1212.6194] [INSPIRE].
CMS collaboration, Search for supersymmetry in events with same-sign dileptons, CMS-PAS-SUS-12-017.
CMS collaboration, Search for supersymmetry in events with same-sign dileptons and b-tagged jets with 8 TeV data, CMS-PAS-SUS-12-029.
CMS collaboration, Search for new physics with same-sign isolated dilepton events with jets and missing transverse energy, Phys. Rev. Lett. 109 (2012) 071803 [arXiv:1205.6615] [INSPIRE].
ATLAS collaboration, Search for gluinos in events with two same-sign leptons, jets and missing transverse momentum with the ATLAS detector in pp collisions at \( \sqrt{s}=7 \) TeV, Phys. Rev. Lett. 108 (2012) 241802 [arXiv:1203.5763] [INSPIRE].
ATLAS collaboration, Search for anomalous production of prompt like-sign lepton pairs at \( \sqrt{s}=7 \) TeV with the ATLAS detector, JHEP 12 (2012) 007 [arXiv:1210.4538] [INSPIRE].
ATLAS collaboration, Search for Supersymmetry in final states with two same-sign leptons, jets and missing transverse momentum with the ATLAS detector in pp collisions at \( \sqrt{s}=8 \) TeV, ATLAS-CONF-2012-105 (2012).
ATLAS collaboration, Search for strongly produced superpartners in final states with two same sign leptons with the ATLAS detector using 21 fb-1 of proton-proton collisions at \( \sqrt{s}=8 \) TeV, ATLAS-CONF-2013-007 (2013).
ATLAS collaboration, Search for anomalous production of events with same-sign dileptons and b jets in 14.3 fb −1 of pp collisions at \( \sqrt{s}=8 \) TeV with the ATLAS detector, ATLAS-CONF-2013-051 (2013).
J.M. Campbell and R.K. Ellis, t \( \overline{t} \) W +− production and decay at NLO, JHEP 07 (2012) 052 [arXiv:1204.5678] [INSPIRE].
A. Kardos, Z. Trócsányi and C. Papadopoulos, Top quark pair production in association with a Z-boson at NLO accuracy, Phys. Rev. D 85 (2012) 054015 [arXiv:1111.0610] [INSPIRE].
M. Garzelli, A. Kardos, C. Papadopoulos and Z. Trócsányi, Z 0 -boson production in association with a top anti-top pair at NLO accuracy with parton shower effects, Phys. Rev. D 85 (2012) 074022 [arXiv:1111.1444] [INSPIRE].
J. Thaler and L.-T. Wang, Strategies to Identify Boosted Tops, JHEP 07 (2008) 092 [arXiv:0806.0023] [INSPIRE].
K. Rehermann and B. Tweedie, Efficient Identification of Boosted Semileptonic Top Quarks at the LHC, JHEP 03 (2011) 059 [arXiv:1007.2221] [INSPIRE].
T. Plehn, M. Spannowsky and M. Takeuchi, Boosted Semileptonic Tops in Stop Decays, JHEP 05 (2011) 135 [arXiv:1102.0557] [INSPIRE].
E.A. Baltz and P. Gondolo, Neutralino decay rates with explicit R-parity violation, Phys. Rev. D 57 (1998) 2969 [hep-ph/9709445] [INSPIRE].
J. Butterworth and H.K. Dreiner, R-parity violation at HERA, Nucl. Phys. B 397 (1993) 3 [hep-ph/9211204] [INSPIRE].
H.K. Dreiner, P. Richardson and M.H. Seymour, Parton shower simulations of R-parity violating supersymmetric models, JHEP 04 (2000) 008 [hep-ph/9912407] [INSPIRE].
M. Krämer, E. Popenda, M. Spira and P. Zerwas, Gluino Polarization at the LHC, Phys. Rev. D 80 (2009) 055002 [arXiv:0902.3795] [INSPIRE].
Author information
Authors and Affiliations
Corresponding author
Additional information
ArXiv ePrint: 1307.1355
Rights and permissions
Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License ( https://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
About this article
Cite this article
Durieux, G., Smith, C. The same-sign top signature of R-parity violation. J. High Energ. Phys. 2013, 68 (2013). https://doi.org/10.1007/JHEP10(2013)068
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/JHEP10(2013)068