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Advances in High Energy Physics
Volume 2013 (2013), Article ID 690254, 17 pages
http://dx.doi.org/10.1155/2013/690254
Review Article

Long-Lived Heavy Quarks: A Review

1Centre for Cosmology, Particle Physics and Phenomenology (CP3), Université catholique de Louvain, Chemin du Cyclotron 2, B-1348 Louvain-la-Neuve, Belgium
2Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany

Received 30 July 2012; Revised 22 January 2013; Accepted 31 January 2013

Academic Editor: Kai-Feng Chen

Copyright © 2013 Mathieu Buchkremer and Alexander Schmidt. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Linked References

  1. G. Aad, T. Abajyan, B. Abbott, et al., “Observation of a new particle in the search for the standard model higgs boson with the ATLAS detector at the LHC,” Physics Letters B, vol. 716, no. 1, pp. 1–29, 2012.
  2. S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, et al., “Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC,” Physics Letters B, vol. 716, no. 1, pp. 30–61, 2012. View at Publisher · View at Google Scholar
  3. O. Eberhardt, G. Herbert, H. Lacker, A. Lenz, A. Menzel, et al., “Joint analysis of higgs boson decays and electroweak precision observables in the standard model with a sequential fourth generation,” Physical Review D, vol. 86, Article ID 013011, 7 pages, 2012.
  4. P. H. Frampton, P. Hung, and M. Sher, “Quarks and leptons beyond the third generation,” Physics Reports, vol. 330, no. 5-6, pp. 263–348, 2000. View at Publisher · View at Google Scholar
  5. S. Dawson and E. Furlan, “A Higgs conundrum with vector fermions,” Physical Review D, vol. 86, Article ID 015021, 34 pages, 2012.
  6. M. Fairbairn, A. Kraan, D. Milstead, T. Sjostrand, P. Z. Skands, et al., “Stable massive particles at colliders,” Physics Reports, vol. 438, no. 1, pp. 1–63, 2007. View at Publisher · View at Google Scholar
  7. S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, et al., “Search for new physics in events with same-sign dileptons and b-tagged jets in pp collisions at s=7  TeV,” Journal of High Energy Physics, vol. 1208, 35 pages, 2012.
  8. G. Aad, et al., “Search for heavy long-lived charged particles with the ATLAS detector in pp collisions at s=7  TeV,” Physics Letters B, vol. 703, no. 4, pp. 428–446, 2011. View at Publisher · View at Google Scholar
  9. F. del Aguila, M. Perez-Victoria, and J. Santiago, “Observable contributions of new exotic quarks to quark mixing,” Journal of High Energy Physics, vol. 0009, 15 pages, 2000. View at Publisher · View at Google Scholar
  10. J. M. Campbell, R. Frederix, F. Maltoni, and F. Tramontano, “NLO predictions for t-channel production of single top and fourth generation quarks at hadron colliders,” Journal of High Energy Physics, vol. 2009, 2009. View at Publisher · View at Google Scholar
  11. M. Buchkremer, J. M. Gerard, and F. Maltoni, “Closing in on a perturbative fourth generation,” Journal of High Energy Physics, vol. 1206, p. 135, 2012. View at Publisher · View at Google Scholar
  12. A. Atre, G. Azuelos, M. Carena, T. Han, E. Ozcan, et al., “Model-independent searches for new quarks at the LHC,” Journal of High Energy Physics, vol. 2011, no. 8, p. 80, 2011. View at Publisher · View at Google Scholar
  13. P. H. Frampton and P. Q. Hung, “Long-lived quarks?” Physical Review D, vol. 58, no. 5, Article ID 057704, 4 pages, 1998. View at Publisher · View at Google Scholar
  14. G. Cacciapaglia, A. Deandrea, D. Harada, and Y. Okada, “Bounds and decays of new heavy vector-like top partners,” Journal of High Energy Physics, vol. 2010, no. 11, p. 159, 2010. View at Publisher · View at Google Scholar
  15. Y. Chao, K. F. Chen, S. K. Chen, W. S. Hou, B. Y. Huang, et al., “Threshold effects in the decay of heavy b and t quarks,” Physical Review D, vol. 84, no. 1, Article ID 014029, 8 pages, 2011. View at Publisher · View at Google Scholar
  16. M. Sher, “Charged leptons with nanosecond lifetimes,” Physical Review D, vol. 52, no. 5, pp. 3136–3138, 1995. View at Publisher · View at Google Scholar
  17. A. Dighe, D. Ghosh, R. M. Godbole, and A. Prasath, “Large mass splittings for fourth generation fermions allowed by LHC Higgs boson exclusion,” Physical Review D, vol. 85, no. 11, Article ID 114035, 12 pages, 2012. View at Publisher · View at Google Scholar
  18. S. Bar-Shalom, S. Nandi, and A. Soni, “Two Higgs doublets with fourth-generation fermions: models for TeV-scale compositeness,” Physical Review D, vol. 84, no. 5, Article ID 053009, 24 pages, 2011. View at Publisher · View at Google Scholar
  19. E. Asilar, E. Cavlan, O. Dogangun, S. Kefeli, V. Erk-can Ozcan, et al., “Oblique parameters and extra generations via OPUCEM,” The European Physical Journal, vol. 72, no. 4, p. 1966, 2012. View at Publisher · View at Google Scholar
  20. I. Bigi, Y. Dokshitzer, V. Khoze, J. Kühn, and P. Zerwas, “Production and decay properties of ultra-heavy quarks,” Physics Letters B, vol. 181, no. 1-2, pp. 157–163, 1986. View at Scopus
  21. L. Lavoura and J. P. Silva, “Oblique corrections from vectorlike singlet and doublet quarks,” Physical Review D, vol. 47, no. 5, p. 2046, 1993. View at Publisher · View at Google Scholar
  22. K. Agashe, R. Contino, L. Da Rold, and A. Pomarol, “A custodial symmetry forZbb¯,” Physics Letters B, vol. 641, no. 1, pp. 62–66, 2006. View at Publisher · View at Google Scholar · View at Scopus
  23. V. D. Barger, M. Berger, and R. Phillips, “Quark singlets: implications and constraints,” Physical Review D, vol. 52, no. 3, pp. 1663–1683, 1995. View at Publisher · View at Google Scholar
  24. T. Yoshikawa, “The effects of a vector-like doublet as the fourth generation to Rb,” Progress of Theoretical Physics, vol. 96, no. 1, pp. 269–274, 1996. View at Publisher · View at Google Scholar
  25. R. Mackeprang and D. Milstead, “An updated description of heavy-hadron interactions in Geant-4,” The European Physical Journal C, vol. 66, no. 3-4, p. 493, 2010. View at Publisher · View at Google Scholar
  26. K. Ishiwata and M. B. Wise, “Fourth generation bound states,” Physical Review D, vol. 83, Article ID 074015, 9 pages, 2011. View at Publisher · View at Google Scholar
  27. V. Flambaum and M. Kuchiev, “Two heavy fermions bound via higgs boson exchange,” Physical Review D, vol. 84, no. 11, Article ID 114024, 14 pages, 2011. View at Publisher · View at Google Scholar
  28. P. Hung and C. Xiong, “Renormalization group fixed point with a fourth generation: higgs-induced bound states and condensates,” Nuclear Physics B, vol. B847, no. 1, pp. 160–178, 2011. View at Publisher · View at Google Scholar
  29. T. Enkhbat, W. S. Hou, and H. Yokoya, “Early LHC phenomenology of Yukawa-bound heavy QQ¯ mesons,” Physical Review D, vol. 84, no. 9, Article ID 094013, 14 pages, 2011. View at Publisher · View at Google Scholar
  30. V. Barger, E. W. N. Glover, K. Hikasa et al., “Superheavy-quarkonium production and decays: a new higgs-boson signal,” Physical Review D, vol. 35, no. 11, pp. 3366–3395, 1987. View at Publisher · View at Google Scholar · View at Scopus
  31. J. H. Kuhn and P. Zerwas, “The toponium scenario,” Physics Reports, vol. 167, no. 6, pp. 321–403, 1988. View at Publisher · View at Google Scholar
  32. J. H. Kuhn and E. Mirkes, “QCD corrections to toponium production at hadron colliders,” Physical Review D, vol. 48, no. 1, pp. 179–189, 1993. View at Publisher · View at Google Scholar
  33. E. Arik, O. Cakir, S. Cetin, and S. Sultansoy, “Fourth generation pseudoscalar quarkonium production and observability at hadron colliders,” Physical Review D, vol. 66, no. 11, Article ID 116006, 6 pages, 2002. View at Publisher · View at Google Scholar
  34. K. Hagiwara, Y. Sumino, and H. Yokoya, “Bound-state effects on top quark production at hadron colliders,” Physics Letters B, vol. 666, no. 1, pp. 71–76, 2008. View at Publisher · View at Google Scholar
  35. Y. Kats and M. D. Schwartz, “Annihilation decays of bound states at the LHC,” Journal of High Energy Physics, vol. 1004, p. 16, 2010. View at Publisher · View at Google Scholar
  36. J. H. Kuhn and E. Mirkes, “Exotic bound state production at hadron colliders,” Physics Letters B, vol. 311, no. 1–4, pp. 301–306, 1993. View at Publisher · View at Google Scholar
  37. S. M. Ikhdair and R. Sever, “Bound energy masses of mesons containing the fourth generation and iso-singlet quarks,” International Journal of Modern Physics A, vol. 21, no. 10, p. 2191, 2006. View at Publisher · View at Google Scholar
  38. V. Bashiry, K. Azizi, and S. Sultansoy, “Properties of bound states containing fourth family quarks,” Journal of Physics, vol. 347, Article ID 012027, 2012. View at Publisher · View at Google Scholar
  39. A. C. Kraan, “Interactions of heavy stable hadronising particles,” The European Physical Journal C, vol. 37, no. 1, pp. 91–104, 2004. View at Publisher · View at Google Scholar
  40. R. Mackeprang and A. Rizzi, “Interactions of coloured heavy stable particles in matter,” The European Physical Journal C, vol. 50, no. 2, pp. 353–362, 2007. View at Publisher · View at Google Scholar
  41. J. Bjorken, “Properties of hadron distributions in reactions containing very heavy quarks,” Physical Review D, vol. 17, no. 1, pp. 171–173, 1978.
  42. M. Suzuki, “Fragmentation of hadrons from heavy quark partons,” Physics Letters B, vol. 71, no. 1, pp. 139–141, 1977. View at Publisher · View at Google Scholar
  43. N. Isgur and M. B. Wise, “Weak decays of heavy mesons in the static quark approximation,” Physics Letters B, vol. 232, no. 1, pp. 113–117, 1989. View at Publisher · View at Google Scholar
  44. N. Isgur and M. B. Wise, “Spectroscopy with heavy-quark symmetry,” Physical Review Letters, vol. 66, no. 9, pp. 1130–1133, 1991. View at Publisher · View at Google Scholar
  45. Y. de Boer, A. Kaidalov, D. Milstead, and O. Piskounova, “Interactions of heavy hadrons using Regge phenomenology and the quark-gluon string model,” Journal of Physics G, vol. 35, no. 7, Article ID 075009, 2008. View at Publisher · View at Google Scholar
  46. J. Kang, P. Langacker, and B. D. Nelson, “Theory and phenomenology of exotic isosinglet quarks and squarks,” Physical Review D, vol. 77, no. 3, Article ID 035003, 32 pages, 2008.
  47. F. Abe, H. Akimoto, A. Akopian, et al., “Search for long-lived parents of [formula] bosons in [formula] collisions at [formula],” Physical Review D, vol. 58, no. 5, Article ID 051102, 1998.
  48. S. Abachi, B. Abbott, M. Abolins, et al., “Search for a fourth generation charge 1/3 quark via flavor changing neutral current decay,” Physical Review Letters, vol. 78, no. 20, pp. 3818–3823, 1997. View at Publisher · View at Google Scholar
  49. D. Decamp, B. Deschizeaux, J. P. Lees, et al., “Search for excited leptons in Z0 decay,” Physics Letters B, vol. 236, no. 4, pp. 501–510, 1990.
  50. D. Acosta, T. Affolder, H. Akimoto, et al., “Search for long-lived charged massive particles in pp¯ collisions at s=1.8  TeV,” Physical Review Letters, vol. 90, no. 13, Article ID 131801, 6 pages, 2003. View at Publisher · View at Google Scholar
  51. V. Abazov, B. Abbott, M. Abolins, et al., “Search for long-lived particles decaying into electron or photon pairs with the D0 detector,” Physical Review Letters, vol. 101, no. 11, Article ID 111802, 7 pages, 2008.
  52. T. Aaltonen, A. Abulencia, J. Adelman, et al., “Search for new particles leading to Z+jets final states in pp¯ collisions at s=1.96 TeV,” Physical Review D, vol. 76, no. 7, Article ID 072006, 24 pages, 2007.
  53. P. Hung and M. Sher, “Experimental constraints on fourth generation quark masses,” Physical Review D, vol. 77, no. 3, Article ID 037302, 4 pages, 2008. View at Publisher · View at Google Scholar
  54. S. Chatrchyan, A. Apresyan, A. Bornheim, et al., “Search for heavy bottom-like quarks in 4.9 fb1 of pp collisions at s=7 TeV,” Journal of High Energy Physics, vol. 5, p. 123, 2012. View at Publisher · View at Google Scholar
  55. J. Alwall, M. Herquet, F. Maltoni, O. Mattelaer, and T. Stelzer, “MadGraph 5: going beyond,” Journal of High Energy Physics, vol. 1106, p. 128, 2011. View at Publisher · View at Google Scholar
  56. S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, et al., “J/ψ and ψ(2S) production in pp collisions at s=7 TeV,” Journal of High Energy Physics, pp. 11–101, 2012. View at Publisher · View at Google Scholar
  57. G. Aad, B. Abbott, J. Abdallah, et al., “Search for displaced vertices arising from decays of new heavy particles in 7 TeV pp collisions at ATLAS,” Physics Letters B, vol. 707, no. 5, pp. 478–496, 2012. View at Publisher · View at Google Scholar
  58. M. Cacciari, M. Czakon, M. Mangano, A. Mitov, and P. Nason, “Top-pair production at hadron colliders with next-to-next-to-leading logarithmic soft-gluon resummation,” Physics Letters B, vol. 710, no. 4-5, pp. 612–622, 2012. View at Publisher · View at Google Scholar
  59. G. Aad, et al., “Search for long-lived, heavy particles in final states with a muon and multi-track displaced vertex in proton-proton collisions at s=7 TeV with the ATLAS detector,” Physics Letters B, vol. 719, no. 4-5, pp. 280–298, 2013. View at Publisher · View at Google Scholar
  60. E. L. Berger and Q. H. Cao, “Next-to-leading order cross sections for new heavy fermion production at hadron colliders,” Physical Review D, vol. 81, no. 3, Article ID 035006, 11 pages, 2010.
  61. S. Chatrchyan, et al., “Search for heavy long-lived charged particles in pp collisions at s=7,” Physics Letters B, vol. 713, no. 4-5, pp. 408–433, 2012. View at Publisher · View at Google Scholar
  62. S. Chatrchyan, G. Hmayakyan, V. Khachatryan, et al., “The CMS experiment at the CERN LHC,” Journal of Instrumentation, vol. 3, Article ID S08004, 2008. View at Publisher · View at Google Scholar
  63. P. W. Graham, K. Howe, S. Rajendran, and D. Stolarski, “New measurements with stopped particles at the LHC,” Physical Review D, vol. 86, no. 3, Article ID 034020, 15 pages, 2012. View at Publisher · View at Google Scholar
  64. M. Johansen, J. Edsjö, S. Hellman, and D. Milstead, “Long-lived stops in MSSM scenarios with a neutralino LSP,” Journal of High Energy Physics, vol. 1008, p. 005, 2010. View at Publisher · View at Google Scholar