Table of Contents Author Guidelines Submit a Manuscript
Advances in High Energy Physics
Volume 2016, Article ID 1760219, 12 pages
http://dx.doi.org/10.1155/2016/1760219
Research Article

Effects of the FCNC Couplings in Production of New Heavy Quarks within Models at the LHC

1Department of Physics, Dumlupinar University, Merkez, 43100 Kutahya, Turkey
2Department of Physics, Ankara University, Tandogan, 06100 Ankara, Turkey

Received 30 December 2015; Revised 20 March 2016; Accepted 3 May 2016

Academic Editor: Michal Kreps

Copyright © 2016 V. Çetinkaya et al. 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. The publication of this article was funded by SCOAP3.

Linked References

  1. P. Langacker, “The physics of heavy Z′ gauge bosons,” Reviews of Modern Physics, vol. 81, no. 3, pp. 1199–1228, 2009. View at Publisher · View at Google Scholar
  2. K. A. Olive, K. Agashe, C. Amsler et al., “Review of particle physics,” Chinese Physics C, vol. 38, Article ID 090001, 2014. View at Publisher · View at Google Scholar
  3. A. Aad, B. Abbott, J. Abdallah et al., “Search for high-mass dilepton resonances in pp collisions at with the s=8 TeV with the ATLAS detector,” Physical Review D, vol. 90, no. 5, Article ID 052005, 2014. View at Publisher · View at Google Scholar
  4. A. Aad, T. Abajyan, B. Abbott et al., “Search for high-mass resonances decaying to dilepton final states in pp collisions at s=7 TeV with the ATLAS detector,” Journal of High Energy Physics, vol. 2012, article 138, 2012. View at Publisher · View at Google Scholar
  5. S. Chatrchyan, V. Khachatryan, A. M. Sirunyan et al., “Search for heavy narrow dilepton resonances in pp collisions at s=7 Tev and s=8 Tev,” Physics Letters B, vol. 720, no. 1–3, pp. 63–82, 2013. View at Publisher · View at Google Scholar
  6. S. Khachatryan, A. M. Sirunyan, A. Tumasyan et al., “Search for physics beyond the standard model in dilepton mass spectra in proton-proton collisions at s=8 TeV,” Journal of High Energy Physics, vol. 2015, no. 4, article 025, 2015. View at Publisher · View at Google Scholar
  7. A. Aad, T. Abajyan, B. Abbott et al., “Search for tt- resonances in the lepton plus jets final state with ATLAS using 4.7 fb-1 of pp collisions at s=7 TeV,” Physical Review D, vol. 88, no. 1, Article ID 012004, 28 pages, 2013. View at Publisher · View at Google Scholar
  8. S. Chatrchyan, V. Khachatryan, A. M. Sirunyan et al., “Searches for new physics using the tt- invariant mass distribution in pp collisions at s=8 Tev,” Physical Review Letters, vol. 111, no. 21, Article ID 211804, 16 pages, 2013. View at Publisher · View at Google Scholar
  9. A. Alves, S. Profumo, and F. S. Queiroz, “The dark Z portal: direct, indirect and collider searches,” Journal of High Energy Physics, vol. 2014, article 63, 2014. View at Publisher · View at Google Scholar
  10. A. Alves, A. Berlin, S. Profumod, and F. S. Queiroz, “Dirac-fermionic dark matter in U(1)X models,” Journal of High Energy Physics, vol. 2015, article 76, 2015. View at Publisher · View at Google Scholar
  11. A. Arhrib, K. Cheung, C.-W. Chiang, and T.-C. Yuan, “Single top quark production in flavor-changing Z′ models,” Physical Review D, vol. 73, no. 7, Article ID 075015, 2006. View at Publisher · View at Google Scholar
  12. O. Cakir, I. T. Cakir, A. Senol, and A. T. Tasci, “Search for top quark FCNC couplings in Z′ models at the LHC and CLIC,” The European Physical Journal C, vol. 70, no. 1-2, pp. 295–303, 2010. View at Publisher · View at Google Scholar
  13. R. Contino, Y. Nomura, and A. Pomarol, “Higgs as a holographic pseudo-Goldstone boson,” Nuclear Physics B, vol. 671, pp. 148–174, 2003. View at Publisher · View at Google Scholar · View at Scopus
  14. J. A. Aguilar-Saavedra, “Mixing with vector-like quarks: constraints and expectations,” EPJ Web of Conferences, vol. 60, article 16012, 2013. View at Publisher · View at Google Scholar
  15. S. Sultansoy and G. Unel, “The E6 inspired isosinglet quark and the Higgs boson,” Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 669, no. 1, pp. 39–45, 2008. View at Publisher · View at Google Scholar · View at Scopus
  16. O. Çakır, İ. T. Çakır, H. D. Yıldız, and R. Mehdiyev, “Single production of fourth-family quarks at the LHC,” The European Physical Journal C, vol. 56, no. 4, pp. 537–543, 2008. View at Publisher · View at Google Scholar
  17. S. Chatrchyan, V. Khachatryan, A. M. Sirunyan et al., “Inclusive search for a vector-like T quark with charge 23 in pp collisions at s=8 Tev,” Physics Letters B, vol. 729, pp. 149–171, 2014. View at Publisher · View at Google Scholar
  18. A. Aad, B. Abbott, J. Abdallah et al., “Search for pair and single production of new heavy quarks that decay to a Z boson and a third-generation quark in pp collisions at s=8 TeV with the ATLAS detector,” Journal of High Energy Physics, vol. 2014, article 104, 2014. View at Publisher · View at Google Scholar
  19. P. Langacker and M. Plümacher, “Flavor changing effects in theories with a heavy Z′ boson with family nonuniversal couplings,” Physical Review D, vol. 62, no. 1, Article ID 013006, 2000. View at Publisher · View at Google Scholar
  20. K. Cheung, C.-W. Chiang, N. G. Deshpande, and J. Jiang, “Constraints on flavor-changing Z models by Bs mixing, Z production, and Bsμ+μ-,” Physics Letters B, vol. 652, no. 5-6, pp. 285–291, 2007. View at Publisher · View at Google Scholar
  21. S. Chaudhuri, S.-W. Chung, G. Hockney, and J. Lykken, “String consistency for unified model building,” Nuclear Physics B, vol. 456, no. 1-2, pp. 89–129, 1995. View at Publisher · View at Google Scholar · View at MathSciNet
  22. G. Cleaver, M. Cvetič, J. R. Espinosa, L. Everett, P. Langacker, and J. Wang, “Physics implications of flat directions in free fermionic superstring models. I. Mass spectrum and couplings,” Physical Review D, vol. 59, Article ID 055005, 1999. View at Publisher · View at Google Scholar
  23. V. Barger, C.-W. Chianga, P. Langackerb, and H.-S. Leea, “Z′ mediated flavor changing neutral currents in B meson decays,” Physics Letters B, vol. 580, no. 3-4, pp. 186–196, 2004. View at Publisher · View at Google Scholar
  24. V. Barger, C. W. Chiang, P. Langacker, and H. S. Lee, “Solution to the BπK puzzle in a flavor-changing Z′ model,” Physics Letters B, vol. 598, no. 3-4, pp. 218–226, 2004. View at Publisher · View at Google Scholar
  25. C. H. Chen and H. Hatanaka, “Nonuniversal Z' couplings in B decays,” Physical Review D, vol. 73, Article ID 075003, 2006. View at Publisher · View at Google Scholar
  26. V. Barger, L. L. Everetta, J. Jianga, P. Langackerb, T. Liuc, and C. E. M. Wagner, “bS transitions in family-dependent U(1)′ models,” Journal of High Energy Physics, vol. 2009, no. 12, article 48, 2009. View at Publisher · View at Google Scholar
  27. V. Barger, L. Everett, J. Jiang, P. Langacker, T. Liu, and C. E. M. Wagner, “Family nonuniversal U1 gauge symmetries and bs transitions,” Physical Review D, vol. 80, Article ID 055008, 2009. View at Publisher · View at Google Scholar
  28. A. K. Alok, S. Baek, and D. London, “Neutral gauge boson contributions to the dimuon charge asymmetry in B decays,” Journal of High Energy Physics, vol. 2011, article 111, 2011. View at Publisher · View at Google Scholar
  29. K. Leroux and D. London, “Flavour-changing neutral currents and leptophobic Z gauge bosons,” Physics Letters B, vol. 526, no. 1-2, pp. 97–103, 2002. View at Publisher · View at Google Scholar
  30. V. Barger, C.-W. Chiang, J. Jiang, and P. Langacker, “Bs-B-s mixing in Z′ models with flavor-changing neutral currents,” Physics Letters, Section B, vol. 596, no. 3-4, pp. 229–239, 2004. View at Publisher · View at Google Scholar · View at Scopus
  31. X. G. He and G. Valencia, “Bs-B-s mixing constraints on FCNC and a nonuniversal Z′,” Physical Review D, vol. 74, Article ID 013011, 2006. View at Publisher · View at Google Scholar
  32. C. W. Chiang, N. G. Deshpande, and J. Jiang, “Flavor changing effects in family nonuniversal Z′ models,” Journal of High Energy Physics, vol. 2006, no. 8, article 75, 2006. View at Publisher · View at Google Scholar
  33. S. Baek, J. H. Jeon, and C. S. Kim, “BS0-B-S0 mixing in leptophobic Z′ model,” Physics Letters B, vol. 641, no. 2, pp. 183–188, 2006. View at Publisher · View at Google Scholar
  34. A. Cordero-Cid, G. Tavares-Velasco, and J. J. Toscano, “Effects of an extra Z′ gauge boson on the top quark decay tcγ gamma,” Physical Review D, vol. 72, Article ID 057701, 2005. View at Publisher · View at Google Scholar
  35. C. X. Yue, H. J. Zong, and L. J. Liu, “Non-universal gauge bosons Z and rare top decays,” Modern Physics Letters A, vol. 18, no. 31, pp. 2187–2193, 2003. View at Publisher · View at Google Scholar
  36. K. Y. Lee, S. C. Park, H. S. Song, and C. Yu, “Probing the Z′ gauge boson with the spin configuration of top quark pair production at future e-e+ linear colliders,” Physical Review D, vol. 63, no. 9, Article ID 094010, 2001. View at Publisher · View at Google Scholar
  37. C. X. Yue and L. N. Wang, “Non-universal gauge boson Z and the spin correlation of top quark pair production at e-e+ colliders,” Journal of Physics G: Nuclear and Particle Physics, vol. 34, no. 1, p. 139, 2007. View at Publisher · View at Google Scholar
  38. F. del Aguila, J. A. Aguilar-Saavedra, M. Moretti, F. Piccinini, R. Pittau, and M. Treccani, “Combined analysis of Ztt- and Ztt-j production for vector resonance searches at LHC,” Physics Letters B, vol. 685, no. 4-5, pp. 302–308, 2010. View at Publisher · View at Google Scholar
  39. M. Bobrowski, A. Lenz, J. Riedl, and J. Rohrwild, “How much space is left for a new family of fermions?” Physical Review D—Particles, Fields, Gravitation and Cosmology, vol. 79, no. 11, Article ID 113006, 2009. View at Publisher · View at Google Scholar · View at Scopus
  40. A. Belyaev, N. D. Christensen, and A. Pukhov, “CalcHEP 3.4 for collider physics within and beyond the Standard Model,” Computer Physics Communications, vol. 184, no. 7, pp. 1729–1769, 2013. View at Publisher · View at Google Scholar · View at Scopus
  41. J. Pumplin, D. R. Stump, J. Huston, H.-L. Lai1, P. Nadolsky, and W.-K. Tung, “New generation of parton distributions with uncertainties from global QCD analysis,” Journal of High Energy Physics, vol. 2002, no. 7, p. 12, 2002. View at Publisher · View at Google Scholar