Effect of spin-3/2 top quark excitation on t̄t production at the LHC

Journal of High Energy Physics

Volumn 2012, Issue 1, 2012, Pages

  Stirling, W J ^a   Vryonidou, E ^a  

^a UNIVERSITY OF CAMBRIDGE   (United Kingdom)

Author keywords

Beyond Standard Model; Hadronic Colliders

Indexed keywords

EID: 84857249978     PISSN: 11266708     EISSN: 10298479     Source Type: Journal    
DOI: 10.1007/JHEP01(2012)055     Document Type: Article

References (55)

1. ATLAS collaboration, G. Aad et al., Measurement of the top quarkpair production cross section in pp collisions at^s = 7TeVin dilepton final states with ATLAS, arXiv:1108.3699 [INSPIRE].
2. CMS collaboration, S. Chatrchyan et al., Measurement of the ttproduction cross section and the top quark mass in the dilepton channel in pp collisions at Js = 7TeV, JHEP 07 (2011) 049 [arXiv:1105.5661] [INSPIRE].
3. CMS collaboration, S. Chatrchyan et al., Measurement of the Top-antitop Production Cross section in pp Collisions atjs = 7 TeV using the Kinematic Properties of Events with Leptons and Jets, Eur. Phys. J. C 71 (2011) 1721 [arXiv:1106.0902] [INSPIRE].
4. CMS collaboration, S. Chatrchyan et al., Measurement of the tt Production Cross section in pp Collisions at 7TeVin Lepton + Jets Events Using b-quark Jet Identification Phys. Rev. D 84 (2011) 092004 [arXiv:1108.3773] [INSPIRE].
5. DO collaboration, V. Abazov et al., Search for tt resonances in the lepton plus jets final state inpp collisions atyß=1.96 TeV, Phys. Lett. B 668 (2008) 98 [arXiv:0804.3664] [INSPIRE].
6. 1 ofpp Collisions at ^Γs = 1.96 TeV, Phys. Rev. Lett. 103 (2009) 041801 [arXiv:0902.3276] [INSPIRE].
7. 1 ofintegrated luminosity of pp collisions at ^s = 1.96 TeV, Phys. Rev. D 84 (2011) 072004 [arXiv:1107.5063] [INSPIRE].
8. ATLAS collaboration, A Searchfor ttbar Resonances in the Dilepton Channel in 1.04/fb of pp Collisions at ^s = 7TeV, ATLAS-CONF-2011-123 (2011).
9. CDF collaboration, T. Aaltonen et al., Evidence for a Mass Dependent Forward-Backward Asymmetry in Top QuarkPairProduction, Phys. Rev. D 83 (2011) 112003 [arXiv:1101.0034] [INSPIRE].
10. DO collaboration, V.M. Abazov et al., Forward-backward asymmetry in top quark-antiquark production, arXiv:1107.4995 [INSPIRE].
11. R. Frederix and F. Maltoni, Top pair invariant mass distribution: A Window on new physics, JHEP 01 (2009) 047 [arXiv:0712.2355] [INSPIRE].
12. V. Barger, T. Han and D.G. Walker, Top Quark Pairs at High Invariant Mass: A Model-Independent Discriminator of New Physics at the LHC, Phys. Rev. Lett. 100 (2008) 031801 [hep-ph/0612016] [INSPIRE].
13. K. Kumar, T.M. Tait and R. Vega-Morales, Manifestations of Top Compositeness at Colliders, JHEP 05 (2009) 022 [arXiv:0901.3808] [INSPIRE].
14. D.-W. Jung, P. Ko, J.S. Lee and S.-h. Nam, Model independent analysis of the forward-backward asymmetry of top quark production at the Tevatron, Phys. Lett. B 691 (2010) 238 [arXiv:0912.1105] [INSPIRE].
15. C. Degrande, J.-M. Gerard, C. Grojean, F. Maltoni and G. Servant, Non-resonant New Physics in Top Pair Production at Hadron Colliders, JHEP 03 (2011) 125 [arXiv :1010. 6304] [INSPIRE].
16. C. Burges and H.J. Schnitzer, Virtual effects of excited quarks as probes ofapossible new hadronic mass scale, Nucl. Phys. B 228 (1983) 464 [INSPIRE].
17. J.H. Kuhn and P.M. Zerwas, Excited Quarks And Leptons, Phys. Lett. B 147 (1984) 189 [INSPIRE].
18. J.H. Kuhn, H. Tholl and P. Zerwas, Signals Of Excited Quarks And Leptons, Phys. Lett. B 158 (1985) 270 [INSPIRE].
19. B. Moussallam and V. Soni, Production Of Heavy Spin 3/2 Fermions In Colliders, Phys. Rev. D 39 (1989) 1883 [INSPIRE].
20. J. Almeida, F.M.L., J. Lopes, J.A. Martins Simoes and A. Ramalho, Production and decay of single heavy spin 3/2 leptons in high-energy electron \- positron collisions, Phys. Rev. D 53 (1996) 3555 [hep-ph/9509364] [INSPIRE].
21. D.A. Dicus, S. Gibbons and S. Nandi, Collider production of spin 3/2 quarks, hep-ph/9806312 [INSPIRE].
22. R. Walsh and A. Ramalho, Bounds on the electromagnetic interactions of excited spin 3/2 leptons, Phys. Rev. D 60 (1999) 077302 [hep-ph/9907364] [INSPIRE].
23. O. Cakir and A. Ozansoy, Search for excited spin-3/2 and spin-1/2 leptons at linear colliders, Phys. Rev. D 77 (2008) 035002 [arXiv:0709.2134] [INSPIRE].
24. B. Hassanain, J. March-Russell and J. Rosa, On the possibility of light string resonances at the LHC and Tevatron from Randall-Sundrum throats, JHEP 07 (2009) 077 [arXiv:0904.4108] [INSPIRE].
25. T. Gherghetta and A. Pomarol, Bulk fields and supersymmetry in a slice of AdS, Nucl. Phys. B 586 (2000) 141 [hep-ph/0003129] [INSPIRE].
26. W. Rarita and J. Schwinger, On a theory ofparticles with half integral spin Phys. Rev. 60(1941)61 [INSPIRE].
27. A. Martin, W. Stirling, R. Thorne and G. Watt, Parton distributions for the LHC, Eur. Phys. J. C 63 (2009) 189 [arXiv:0901.0002] [INSPIRE].
28. J. Pumplin et al., New generation of parton distributions with uncertainties from global QCD analysis, JHEP 07 (2002) 012 [hep-ph/0201195] [INSPIRE].
29. F. Piccinini, G. Venturi and R. Zucchini, Acausality And Violation Of S Matrix Unitarity For Rarita-Schwinger Particles In An External Electromagnetic Potential, Lett. Nuovo Cim. 41 (1984) 536 [INSPIRE].
30. S. Deser, V. Pascalutsa and A. Waldron, Massive spin 3/2 electrodynamics, Phys. Rev. D 62 (2000) 105031 [hep-th/0003011] [INSPIRE].
31. W. Alles and V. Alles Borelli, Pair Production of Heavy Leptons and their Spin, Nuovo Cim. A 35 (1976) 125 [INSPIRE].
32. H. Georgi, S. Glashow, M. Machacek and D.V. Nanopoulos, Charmed Particles From Two -Gluon Annihilation In Proton Proton Collisions, Annals Phys. 114 (1978) 273 [INSPIRE].
33. J. Vermaseren, New features ofFORM, math-ph/0010025 [INSPIRE].
34. A. Pukhov, CalcHEP 2.3: MSSM, structurefunctions, event generation, batchs and generation of matrix elements for otherpackages, hep-ph/0412191 [INSPIRE].
35. A. Semenov, LanHEP - a package for automatic generation of Feynman rules from the Lagrangian. Updated version 3.1, arXiv:1005.1909 [INSPIRE].
36. PARTICLE DATA GROUP collaboration, C. Amsler et al., Review of Particle Physics, Phys. Lett. B 667 (2008) 1 [INSPIRE].
37. P. Nason, S. Dawson and R. Ellis, The Total Cross-Section for the Production of Heavy Quarks in Hadronic Collisions, Nucl. Phys. B 303 (1988) 607 [INSPIRE].
38. W. Beenakker, H. Kuijf, W. van Neerven and J. Smith, QCD Corrections to Heavy Quark Production inpp Collisions, Phys. Rev. D 40 (1989) 54 [INSPIRE].
39. U. Langenfeld, S. Moch and P. Uwer, Measuring the running top-quark mass, Phys. Rev. D 80 (2009) 054009 [arXiv:0906.5273] [INSPIRE].
40. M. Cacciari, S. Frixione, M.L. Mangano, P. Nason and G. Ridolfi, Updated predictions for the total production cross sections of top and of heavier quark pairs at the Tevatron and at the LHC, JHEP 09 (2008) 127 [arXiv:0804.2800] [INSPIRE].
41. N. Kidonakis and R. Vogt, The Theoretical top quark cross section at the Tevatron and the LHC, Phys. Rev. D 78 (2008) 074005 [arXiv:0805.3844] [INSPIRE].
42. N. Kidonakis, Next-to-next-to-leading soft-gluon corrections for the top quark cross section and transverse momentum distribution, Phys. Rev. D 82 (2010) 114030 [arXiv:1009.4935] [INSPIRE].
43. N. Kidonakis and B.D. Pecjak, Top-quark production and QCD, Eur. Phys. J. C (2011) [arXiv:1108.6063] [INSPIRE].
44. U. Baur and E.L. Berger, Probing the WWγ Vertex at the Tevatron Collider, Phys. Rev. D 41 (1990) 1476 [INSPIRE].
45. M. Benmerrouche, R. Davidson and N. Mukhopadhyay, Problems Of Describing Spin 3/2 Baryon Resonances In The Effective Lagrangian Theory, Phys. Rev. C 39 (1989) 2339 [INSPIRE].
46. M.-A. Pleier, Review ofProperties of the Top Quarkfrom Measurements at the Tevatron Int. J. Mod. Phys. A 24 (2009) 2899 [arXiv:0810.5226] [INSPIRE].
47. CMS collaboration, Measurement of the Charge Asymmetry in Top Quark Pair Production PAS-TOP-11-014.
48. U. Baur, M. Spira and P. Zerwas, Excited Quark And Lepton Production At Hadron Colliders, Phys. Rev. D 42 (1990) 815 [INSPIRE].
49. W. Buchmüller and D. Wyler, Effective Lagrangian Analysis of New Interactions and Flavor Conservation, Nucl. Phys. B 268 (1986) 621 [INSPIRE].
50. D. Atwood, A. Kagan and T. Rizzo, Constraining anomalous top quark couplings at the Tevatron, Phys. Rev. D 52 (1995) 6264 [hep-ph/9407408] [INSPIRE].
51. K.-m. Cheung, Probing the chromoelectric and chromomagnetic dipole moments of the top quark at hadronic colliders, Phys. Rev. D 53 (1996) 3604 [hep-ph/9511260] [INSPIRE].
52. Z. Hioki and K. Ohkuma, Search for anomalous top-gluon couplings at LHC revisited, Eur. Phys. J. C 65 (2010) 127 [arXiv:0910.3049] [INSPIRE].
53. P. Haberl, O. Nachtmann and A. Wilch, Top production in hadron hadron collisions and anomalous top - gluon couplings, Phys. Rev. D 53 (1996) 4875 [hep-ph/9505409] [INSPIRE].
54. ATLAS collaboration, Measurement of the top quark pair production cross-section based on a statistical combination of measurements of dilepton and single-lepton final states at Js = 7 TeVwith the ATLAS detector, ATLAS-CONF-2011-108 (2011).
55. G. Watt, Parton distribution function dependence of benchmark Standard Model total cross sections at the 7TeVLHC, JHEP 09 (2011) 069 [arXiv:1106.5788] [INSPIRE].