Simplified dark matter top-quark interactions at the LHC

A bstractStringent limits on the interactions between dark matter (DM) and the standard model (SM) can be set by studying how initial-state or final-state particles recoil against missing transverse energy . In this work, we improve, extend and correct LHC constraints on the interactions between DM and top quarks that are mediated by the exchange of spin-0 s-channel resonances. A comparison of the LHC run-1 sensitivity of the two main search channels is presented, which shows that mono-jet searches are typically more restrictive than the searches. We furthermore explore the reach of the 14 TeV LHC. The collider constraints are compared to the restrictions arising from direct and indirect detection as well as the DM relic abundance, and we also reflect on effective field theory (EFT) interpretations of the LHC exclusions.

[1]  Patrick J. Fox,et al.  Missing Energy Signatures of Dark Matter at the LHC , 2011, 1109.4398.

[2]  J. Pradler,et al.  Dark matter from minimal flavor violation , 2011, 1105.1781.

[3]  E. Re,et al.  A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX , 2010, 1002.2581.

[4]  Philip Harris,et al.  Constraining Dark Sectors at Colliders: Beyond the Effective Theory Approach , 2014, 1411.0535.

[5]  G. Isidori,et al.  Minimal flavour violation: an effective field theory approach , 2002 .

[6]  Edward J. Wollack,et al.  NINE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE (WMAP) OBSERVATIONS: COSMOLOGICAL PARAMETER RESULTS , 2012, 1212.5226.

[7]  M. Cacciari,et al.  The anti-$k_t$ jet clustering algorithm , 2008, 0802.1189.

[8]  Kentarou Mawatari,et al.  Higgs characterisation at NLO in QCD: CP properties of the top-quark Yukawa interaction , 2014, The European physical journal. C, Particles and fields.

[9]  Ulrich Haisch,et al.  Determining the structure of dark-matter couplings at the LHC , 2013, 1311.7131.

[10]  Hsin-Chia Cheng,et al.  Stop the top background of the stop search , 2012, 1203.4813.

[11]  M. Buckley,et al.  Scalar Simplified Models for Dark Matter , 2014, 1410.6497.

[12]  R. Webb,et al.  First results from the LUX dark matter experiment at the Sanford underground research facility. , 2013, Physical review letters.

[13]  V. Ravindran,et al.  Next-to-leading order QCD corrections to differential distributions of Higgs boson production in hadron–hadron collisions , 2002, hep-ph/0201114.

[14]  T. Tait,et al.  Constraints on dark matter from colliders , 2010, 1008.1783.

[15]  Patrick J. Fox,et al.  The Tevatron at the frontier of dark matter direct detection , 2010, 1005.3797.

[16]  U. Haisch,et al.  LHC constraints on gauge boson couplings to dark matter , 2015, 1501.00907.

[17]  D. Graudenz,et al.  MSSM Higgs Boson Production at the LHC , 1997, hep-ph/9703355.

[18]  T. Tuuva,et al.  Search for dark matter, extra dimensions, and unparticles in monojet events in proton–proton collisions at $$\sqrt{s} = 8$$s=8$$\,{\mathrm{TeV}}\,$$TeV , 2015 .

[19]  Matthew J. Dolan,et al.  A taste of dark matter: flavour constraints on pseudoscalar mediators , 2014, Journal of High Energy Physics.

[20]  F. Kahlhoefer,et al.  QCD effects in mono-jet searches for dark matter , 2013, 1310.4491.

[21]  M. Hoferichter,et al.  Accurate evaluation of hadronic uncertainties in spin-independent WIMP-nucleon scattering: Disentangling two- and three-flavor effects , 2013, 1312.4951.

[22]  F. Kahlhoefer,et al.  The impact of heavy-quark loops on LHC dark-matter searches , 2012, 1208.4605.

[23]  R. S. Thorne,et al.  Parton distributions for the LHC , 2007, 0901.0002.

[24]  I. Hinchliffe,et al.  Higgs decay to τ+τ−A possible signature of intermediate mass Higgs bosons at high energy hadron colliders , 1988 .

[25]  John Ellis,et al.  Disentangling Higgs-top couplings in associated production , 2013, 1312.5736.

[26]  Claude Duhr,et al.  UFO - The Universal FeynRules Output , 2011, Comput. Phys. Commun..

[27]  A. Barr,et al.  Transverse masses and kinematic constraints: from the boundary to the crease , 2009, 0908.3779.

[28]  P. Fox,et al.  Next-to-Leading Order Predictions for Dark Matter Production at Hadron Colliders , 2012, 1211.6390.

[29]  J. Smith,et al.  NLO corrections to differential cross sections for pseudo-scalar Higgs boson production , 2002, hep-ph/0210369.

[30]  A. Mitov,et al.  Total top-quark pair-production cross section at hadron colliders through O(αS(4)). , 2013, Physical review letters.

[31]  Edward W. Kolb,et al.  Probing dark matter couplings to top and bottom quarks at the LHC , 2013, 1303.6638.

[32]  S. Mrenna,et al.  Pythia 6.3 physics and manual , 2003, hep-ph/0308153.

[33]  P. Zerwas,et al.  NLO QCD corrections to t anti-t H production in hadron collisions , 2002 .

[34]  R. Pittau,et al.  Scalar and pseudoscalar Higgs production in association with a top–antitop pair , 2011, 1104.5613.

[35]  Prospects for collider searches for dark matter with heavy quarks , 2013, 1307.7834.

[36]  M. Dolan,et al.  Erratum to: A taste of dark matter: flavour constraints on pseudoscalar mediators , 2015 .

[37]  Matthew J. Dolan,et al.  Characterising dark matter searches at colliders and direct detection experiments: vector mediators , 2014, 1407.8257.

[38]  Miss A.O. Penney.  (b) , 1974, The New Yale Book of Quotations.

[39]  F. Maltoni,et al.  MadGraph 5: going beyond , 2011, 1106.0522.

[40]  K. Matchev,et al.  Dark matter particle spectroscopy at the LHC: generalizing MT2 to asymmetric event topologies , 2009, 0911.4126.

[41]  S. Chauhan,et al.  Searching for Dark Matter at Hadron Colliders , 2014, 1406.5662.

[42]  A. Vainshtein,et al.  Remarks on Higgs-Boson Interactions with Nucleons , 1978 .

[43]  Claude Duhr,et al.  FeynRules 2.0 - A complete toolbox for tree-level phenomenology , 2013, Comput. Phys. Commun..

[44]  P. Catastini,et al.  Search for dark matter in events with heavy quarks and missing transverse momentum in $$pp$$pp collisions with the ATLAS detector , 2015 .

[45]  P. Zerwas,et al.  NLO QCD corrections to t t H production in hadron collisions , 2003 .

[46]  E. Tassi,et al.  Measurement of J/psi helicity distributions in inelastic photoproduction at HERA , 2009 .

[47]  P. Catastini,et al.  Search for top squark pair production in final states with one isolated lepton, jets, and missing transverse momentum in s$$ \sqrt{s} $$ = 8 TeV pp collisions with the ATLAS detector , 2014 .

[48]  E. Re,et al.  Vector boson plus one jet production in POWHEG , 2010, 1009.5594.

[49]  A. Boveia,et al.  Simplified Models for Dark Matter and Missing Energy Searches at the LHC , 2014, 1409.2893.

[50]  S. Dawson,et al.  Associated b Quark-Higgs Boson Production at the LHC , 2011 .

[51]  Michael S. Turner,et al.  The early Universe , 1981, Nature.

[52]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.

[53]  J. Chiang,et al.  Dark matter constraints from observations of 25 Milky Way satellite galaxies with the Fermi Large Area Telescope , 2013, 1310.0828.

[54]  M. P. Le,et al.  Bounds on dark matter interactions with electroweak gauge bosons , 2012, 1210.0525.

[55]  T. Tuuva,et al.  Search for top-squark pair production in the single-lepton final state in pp collisions at sqrt(s) = 8 TeV , 2013, 1308.1586.

[56]  M. Cacciari,et al.  FastJet user manual , 2011, 1111.6097.