User menu

Accès à distance ? S'identifier sur le proxy UCLouvain

Exploring alternative symmetry breaking mechanisms at the LHC with 7, 8 and 10 TeV total energy

Primary tabs

download
  • Open access
  • PDF
  • 506.88 K
Ballestrero, Alessandro Buarque Franzosi, Diogo [UCL] Maina, Ezio

In view of the annnouncement that in 2012 the LHC will run at 8 TeV, we study the possibility of detecting signals of alternative mechanisms of ElectroWeak Symmetry Breaking, described phenomenologically by unitarized models, at energies lower than 14 TeV. A complete calculation with six fermions in the final state is performed using the PHANTOM event generator. Our results indicate that at 8 TeV some of the scenarios with TeV scale resonances are likely to be identified while models with no resonances or with very heavy ones will be inaccessible, unless the available luminosity will be much higher than expected.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès libre
Publication date 2012
Language Anglais
Journal information "Journal of High Energy Physics" - Vol. 1205, p. 083 (2012)
Peer reviewed yes
e-issn 1029-8479
Publication status Publié
Affiliation UCL - SST/IRMP - Institut de recherche en mathématique et physique
Keywords scale: TeV ; symmetry breaking ; CERN LHC Coll ; Monte Carlo ; unitarity
Links
  1. ATLAS collaboration, G. Aad et al., Combined search for the standard model Higgs boson using up to 4.9 fb −1 of pp collision data at $ \sqrt {s} = 7\;TeV $ with the ATLAS detector at the LHC, Phys. Lett. B 710 (2012) 49 [ arXiv:1202.1408 ] [ INSPIRE ].
  2. CMS collaboration, S. Chatrchyan et al., Combined results of searches for the standard model Higgs boson in pp collisions at $ \sqrt {s} = 7\;TeV $ , arXiv:1202.1488 [ INSPIRE ].
  3. CDF and D0 collaboration, Combined CDF and D0 search for standard model Higgs boson production with up to 10 fb −1 of data, arXiv:1203.3774 [ FERMILAB-CONF-12-065-E ].
  4. Ballestrero Alessandro, Bevilacqua Giuseppe, Franzosi Diogo Buarque, Maina Ezio, How well can the LHC distinguish between the SM light Higgs scenario, a composite Higgs and the Higgsless case using VV scattering channels?, 10.1088/1126-6708/2009/11/126
  5. Ballestrero Alessandro, Franzosi Diogo Buarque, Maina Ezio, Vector-vector scattering at the LHC with two charged leptons and two neutrinos in the final state, 10.1007/jhep06(2011)013
  6. Ballestrero Alessandro, Franzosi Diogo Buarque, Oggero Luisa, Maina Ezio, Vector boson scattering at the LHC: counting experiments for unitarized models in a full six fermion approach, 10.1007/jhep03(2012)031
  7. Jäger Barbara, Oleari Carlo, Zeppenfeld Dieter, Next-to-leading order QCD corrections toW+W−production via vector-boson fusion, 10.1088/1126-6708/2006/07/015
  8. B. Jager, C. Oleari and D. Zeppenfeld, Next-to-leading order QCD corrections to Z boson pair production via vector-boson fusion, Phys. Rev. D 73 (2006) 113006 [ hep-ph/0604200 ] [ INSPIRE ].
  9. G. Bozzi, B. Jager, C. Oleari and D. Zeppenfeld, Next-to-leading order QCD corrections to W + Z and W − Z production via vector-boson fusion, Phys. Rev. D 75 (2007) 073004 [ hep-ph/0701105 ] [ INSPIRE ].
  10. B. Jager, C. Oleari and D. Zeppenfeld, Next-to-leading order QCD corrections to W + W + jj and W − W − jj production via weak-boson fusion, Phys. Rev. D 80 (2009) 034022 [ arXiv:0907.0580 ] [ INSPIRE ].
  11. Arnold K., Bähr M., Bozzi G., Campanario F., Englert C., Figy T., Greiner N., Hackstein C., Hankele V., Jäger B., Klämke G., Kubocz M., Oleari C., Plätzer S., Prestel S., Worek M., Zeppenfeld D., Vbfnlo: A parton level Monte Carlo for processes with electroweak bosons, 10.1016/j.cpc.2009.03.006
  12. Berger C. F., Bern Z., Dixon L. J., Febres Cordero F., Forde D., Gleisberg T., Ita H., Kosower D. A., Maître D., Precise Predictions forW+4-Jet Production at the Large Hadron Collider, 10.1103/physrevlett.106.092001
  13. T. Appelquist and C.W. Bernard, Strongly interacting Higgs bosons, Phys. Rev. D 22 (1980) 200 [ INSPIRE ].
  14. A.C. Longhitano, Heavy Higgs bosons in the Weinberg-Salam model, Phys. Rev. D 22 (1980) 1166 [ INSPIRE ].
  15. Longhitano Anthony C., Low-energy impact of a heavy Higgs boson sector, 10.1016/0550-3213(81)90109-7
  16. T. Appelquist and G.-H. Wu, The electroweak chiral lagrangian and new precision measurements, Phys. Rev. D 48 (1993) 3235 [ hep-ph/9304240 ] [ INSPIRE ].
  17. Contino Roberto, Kramer Thomas, Son Minho, Sundrum Raman, Warped/composite phenomenology simplified, 10.1088/1126-6708/2007/05/074
  18. Giudice Gian Francesco, Grojean Christophe, Pomarol Alex, Rattazzi Riccardo, The strongly-interacting light Higgs, 10.1088/1126-6708/2007/06/045
  19. R. Barbieri, B. Bellazzini, V.S. Rychkov and A. Varagnolo, The Higgs boson from an extended symmetry, Phys. Rev. D 76 (2007) 115008 [ arXiv:0706.0432 ] [ INSPIRE ].
  20. Ballestrero Alessandro, Belhouari Aissa, Bevilacqua Giuseppe, Kashkan Vladimir, Maina Ezio, PHANTOM: A Monte Carlo event generator for six parton final states at high energy colliders, 10.1016/j.cpc.2008.10.005
  21. Dawson S., Valencia G., Bounds on anomalous gauge boson couplings from partial Z widths at LEP, 10.1016/0550-3213(95)00042-q
  22. J. van der Bij and B.M. Kastening, Corrections to oblique parameters induced by anomalous vector boson couplings, Phys. Rev. D 57 (1998) 2903 [ hep-ph/9708438 ] [ INSPIRE ].
  23. M. Fabbrichesi and L. Vecchi, Possible experimental signatures at the CERN LHC of strongly interacting electro-weak symmetry breaking, Phys. Rev. D 76 (2007) 056002 [ hep-ph/0703236 ] [ INSPIRE ].
  24. Peskin Michael E., Takeuchi Tatsu, New constraint on a strongly interacting Higgs sector, 10.1103/physrevlett.65.964
  25. Brunstein A., Éboli O.J.P., Gonzalez-Garcia M.C., Constraints on quartic vector-boson interactions from Z physics, 10.1016/0370-2693(96)00281-x
  26. O. Eboli, M. Gonzalez-Garcia and J. Mizukoshi, $ pp \to jj{e^{\pm }}{\mu^{\pm }}\nu \nu $ and $ jj{e^{\pm }}{\mu^{ \mp }}\nu \nu $ at $ O\left( {\alpha_{{em}}^6} \right) $ and $ O\left( {\alpha_{{em}}^4\alpha_s^2} \right) $ for the study of the quartic electroweak gauge boson vertex at CERN LHC, Phys. Rev. D 74 (2006) 073005 [ hep-ph/0606118 ] [ INSPIRE ].
  27. Dobado A., Herrero Maria J., Truong Tran N., Study of the strongly interacting Higgs sector, 10.1016/0370-2693(90)90108-i
  28. J. Pelaez, Resonance spectrum of the strongly interacting symmetry breaking sector, Phys. Rev. D 55 (1997) 4193 [ hep-ph/9609427 ] [ INSPIRE ].
  29. J. Butterworth, B. Cox and J.R. Forshaw, WW scattering at the CERN LHC, Phys. Rev. D 65 (2002) 096014 [ hep-ph/0201098 ] [ INSPIRE ].
Bibliographic reference Ballestrero, Alessandro ; Buarque Franzosi, Diogo ; Maina, Ezio. Exploring alternative symmetry breaking mechanisms at the LHC with 7, 8 and 10 TeV total energy. In: Journal of High Energy Physics, Vol. 1205, p. 083 (2012)
Permanent URL http://hdl.handle.net/2078.1/216001