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Implications of the effective axial-vector coupling of the gluon on top-quark charge asymmetry at the LHC
Phys. Rev. D 85, 074021 – Published 18 April, 2012
DOI: https://doi.org/10.1103/PhysRevD.85.074021
Abstract
We study different top-quark charge asymmetries and the variation of total cross section induced by the effective axial-vector coupling of gluon in the LHC experiments. We show that rapidity-cut-dependent asymmetries are more sensitive to the new physics than the independent ones. We also study the dependence of the asymmetries and variations of total cross sections on the invariant mass of system and show that it would be necessary to measure those quantities as functions of at the LHC. In the context of considered new physics scenario, 7 TeV LHC has enough sensitivity either to confirm the Tevatron top asymmetry anomaly or to rule it out. In the latter case, the LHC is able to put stringent constraints on the new physics scale in this framework.
See Also
Effective axial-vector coupling of gluon as an explanation to the top quark asymmetry
Article Text
References (37)
- T. Aaltonen et al. (CDF Collaboration), Phys. Rev. D 83, 112003 (2011).
- V. M. Abazov et al. (D0 Collaboration), Phys. Rev. D 84, 112005 (2011).
- J. H. Kuhn and G. Rodrigo, Phys. Rev. Lett. 81, 49 (1998).
- J. H. Kuhn and G. Rodrigo, Phys. Rev. D 59, 054017 (1999).
- M. Bowen, S. Ellis, and D. Rainwater, Phys. Rev. D 73, 014008 (2006).
- O. Antunano, J. H. Kuhn, and G. Rodrigo, Phys. Rev. D 77, 014003 (2008).
- V. Ahrens, M. Neubert, B. D. Pecjak, A. Ferroglia, and L. L. Yang, Phys. Lett. B 703, 135 (2011).
- M. Cacciari, S. Frixione, M. L. Mangano, P. Nason, and G. Ridolfi, J. High Energy Phys. 09 (2008) 127.
- S. Moch and P. Uwer, Phys. Rev. D 78, 034003 (2008).
- N. Kidonakis, in Proceedings of DPF-2009, Detroit, MI, July 2009, econf C090726 (2009).
- N. Kidonakis, XIX International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS 2011), Newport News, Virginia, USA, April 11-15, 2011 (unpublished).
- T. Aaltonen et al. (The CDF Collaboration), Phys. Rev. D 82, 052002 (2010).
- V. Abazov et al. (D0 Collaboration), Phys. Lett. B 679, 177 (2009).
- Tech. Rep. ATLAS-CONF-2011-140, CERN, Geneva, 2011.
- Tech. Rep. CMS-PAS-TOP-11-007, CERN, Geneva, 2011.
- J. H. Kuhn and G. Rodrigo, J. High Energy Phys. 01 (2012) 063.
- W. Hollik and D. Pagani, Phys. Rev. D 84, 093003 (2011).
- S. Westhoff, International Europhysics Conference on High Energy Physics - HEP 2011, July 21-27 2011, Grenoble, France (unpublished).
- P. Ferrario and G. Rodrigo, Phys. Rev. D 78, 094018 (2008).
- P. Ferrario and G. Rodrigo, Phys. Rev. D 80, 051701 (2009).
- G. Rodrigo and P. Ferrario, Nuovo Cimento Soc. Ital. Fis. C 33, 04 (2010).
- S. Jung, H. Murayama, A. Pierce, and J. D. Wells, Phys. Rev. D 81, 015004 (2010).
- K. Cheung, W.-Y. Keung, and T.-C. Yuan, Phys. Lett. B 682, 287 (2009).
- E. Gabrielli and M. Raidal, Phys. Rev. D 84, 054017 (2011).
- Tech. Rep. ATLAS-CONF-2011-106, CERN, Geneva, 2011.
- Tech. Rep. CMS-PAS-TOP-11-014, CERN, Geneva, 2011.
- P. Haberl, O. Nachtmann, and A. Wilch, Phys. Rev. D 53, 4875 (1996).
- Z. Hioki and K. Ohkuma, Eur. Phys. J. C 65, 127 (2010).
- K. Blum, C. Delaunay , O. Gedalia, Y. Hochberg, S. J. Lee, Y. Nir, G. Perez, and Y. Soreq, Phys. Lett. B 702, 364 (2011).
- M. Raidal and A. Santamaria, Phys. Lett. B 421, 250 (1998).
- C. Delaunay, O. Gedalia, Y. Hochberg, G. Perez, and Y. Soreq, J. High Energy Phys. 08 (2011) 031.
- V. Khachatryan et al. (CMS Collaboration), Phys. Rev. Lett. 106, 201804 (2011).
- G. Aad et al. (ATLAS Collaboration), New J. Phys. 13, 053044 (2011).
- K. D. Lane, arXiv:hep-ph/9605257.
- W. Beenakker, A. Denner, W. Hollik, R. Mertig, T. Sack, and D. Wackeroth, Nucl. Phys. B411, 343 (1994).
- J. Pumplin, D. Stump, J. Huston, H. Lai, and P. M. Nadolsky, and W.-K. Tung, J. High Energy Phys. 07 (2002) 012.
- S. Chatrchyan et al., Phys. Lett. B 709, 28 (2012).