- Physical Review Journals
All JournalsPhysics Magazine
Access Provided by Xinjiang University

Physical Review D

Export citation

Export citation

Choose format for download:

Download Citation
  • Access by Xinjiang University

Enhanced Higgs boson coupling to charm pairs

Cédric Delaunay1,2, Tobias Golling3, Gilad Perez2,4, and Yotam Soreq4

  • 1LAPTh, Université de Savoie, CNRS, B.P. 110, F-74941 Annecy-le-Vieux, France
  • 2CERN, Theory Division, CH-1211 Geneva 23, Switzerland
  • 3Department of Physics, Yale University, New Haven, Connecticut 06520, USA
  • 4Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot 76100, Israel

PDF

Phys. Rev. D 89, 033014 – Published 25 February, 2014

DOI: https://doi.org/10.1103/PhysRevD.89.033014

Abstract

We show that current Higgs data permit a significantly enhanced Higgs coupling to charm pairs, comparable to the Higgs-to-bottom pairs coupling in the Standard Model, without resorting to additional new physics sources in Higgs production. With a mild level of the latter current data even allow for the Higgs-to-charm pairs to be the dominant decay channel. An immediate consequence of such a large charm coupling is a significant reduction of the Higgs signal strengths into the known final states as in particular into bottom pairs. This might reduce the visible vector-boson associated Higgs production rate to a level that could compromise the prospects of ever observing it. We however demonstrate that a significant fraction of this reduced signal can be recovered by jet-flavor tagging targeted towards charm-flavored jets. Finally we argue that an enhanced Higgs-to-charm pairs coupling can be obtained in various new physics scenarios in the presence of only a mild accidental cancellation between various contributions.

View figure in article

Article Text

References (39)

  1. G. Aad et al. (ATLAS Collaboration), Phys. Lett. B 716, 1 (2012).
  2. S. Chatrchyan et al. (CMS Collaboration), Phys. Lett. B 716, 30 (2012).
  3. A. Falkowski, F. Riva, and A. Urbano, J. High Energy Phys. 11 (2013) 111.
  4. P. P. Giardino, K. Kannike, I. Masina, M. Raidal, and A. Strumia, arXiv:1303.3570.
  5. Z.-z. Xing, H. Zhang, and S. Zhou, Phys. Rev. D 77, 113016 (2008); 86, 013013 (2012).
  6. G. Aad et al. (ATLAS Collaboration), Report No. ATLAS-CONF-2013-068, 2013.
  7. G. T. Bodwin, F. Petriello, S. Stoynev, and M. Velasco, Phys. Rev. D 88, 053003 (2013).
  8. S. Chatrchyan et al. (CMS Collaboration), arXiv:1310.1138.
  9. R. Mahbubani, M. Papucci, G. Perez, J. T. Ruderman, and A. Weiler, Phys. Rev. Lett. 110, 151804 (2013).
  10. M. Blanke, G. F. Giudice, P. Paradisi, G. Perez, and J. Zupan, J. High Energy Phys. 06 (2013) 022.
  11. L. Da Rold, C. Delaunay, C. Grojean, and G. Perez, J. High Energy Phys. 02 (2013) 149.
  12. C. Delaunay, T. Flacke, J. Gonzalez-Fraile, S. J. Lee, G. Panico, and G. Perez, arXiv:1311.2072.
  13. S. Fajfer, A. Greljo, J. F. Kamenik, and I. Mustac, J. High Energy Phys. 07 (2013) 155.
  14. N. D. Christensen, T. Han, and Y. Li, Phys. Lett. B 693, 28 (2010); N. Desai, D. K. Ghosh, and B. Mukhopadhyaya, Phys. Rev. D 83, 113004 (2011); C. Englert, D. Goncalves-Netto, K. Mawatari, and T. Plehn, J. High Energy Phys. 01 (2013) 148; R. Godbole, D. J. Miller, K. Mohan, and C. D. White, arXiv:1306.2573.
  15. C. Delaunay, G. Perez, H. de Sandes, and W. Skiba, arXiv:1308.4930.
  16. R. Harnik, J. Kopp, and J. Zupan, J. High Energy Phys. 03 (2013) 026.
  17. D. Carmi, A. Falkowski, E. Kuflik, T. Volansky, and J. Zupan, J. High Energy Phys. 10 (2012) 196.
  18. G. Belanger, B. Dumont, U. Ellwanger, J. F. Gunion, and S. Kraml, Phys. Rev. D 88, 075008 (2013).
  19. G. Aad et al. (ATLAS Collaboration), Phys. Lett. B 726, 88 (2013).
  20. S. Chatrchyan et al. (CMS Collaboration), Report No. CMS-PAS-HIG-12-042, 2012; (CMS Collaboration), Report No. CMS-PAS-HIG-12-044, 2012; (CMS Collaboration), Report No. CMS-PAS-HIG-13-001, 2013; (CMS Collaboration), Report No. CMS-PAS-HIG-13-002, 2013; (CMS Collaboration), Report No. CMS-PAS-HIG-13-004, 2013; (CMS Collaboration), Report No. CMS-PAS-HIG-13-009, 2013.
  21. T. Aaltonen et al. (CDF and D0 Collaborations), Phys. Rev. D 88, 052014 (2013).
  22. S. Chatrchyan et al. (CMS Collaboration), Report No. CMS-PAS-HIG-13-003, 2013.
  23. S. Chatrchyan et al. (CMS Collaboration), arXiv:1310.3687 [Phys. Rev. D (to be published)].
  24. S. Chatrchyan et al. (CMS Collaboration), Report No. CMS-PAS-HIG-13-011, 2013.
  25. S. Chatrchyan et al. (CMS Collaboration), Phys. Lett. B 726, 587 (2013).
  26. J. Baglio et al. (LHC Higgs Cross Section Working Group), CERN Report No. CERN-2011-002, 2011; S. Alekhin et al. (LHC Higgs Cross Section Working Group), CERN Report No. CERN-2012-002, 2012.
  27. A. D. Martin, W. J. Stirling, R. S. Thorne, and G. Watt, Eur. Phys. J. C 63, 189 (2009).
  28. R. V. Harlander and W. B. Kilgore, Phys. Rev. D 68, 013001 (2003).
  29. A. L. Kagan, G. Perez, T. Volansky, and J. Zupan, Phys. Rev. D 80, 076002 (2009).
  30. M. Trott and M. B. Wise, J. High Energy Phys. 11 (2010) 157.
  31. M. Jung, A. Pich, and P. Tuzon, J. High Energy Phys. 11 (2010) 003.
  32. A. Dery, A. Efrati, G. Hiller, Y. Hochberg, and Y. Nir, J. High Energy Phys. 08 (2013) 006.
  33. J. F. Gunion and H. E. Haber, Phys. Rev. D 67, 075019 (2003).
  34. G. F. Giudice, C. Grojean, A. Pomarol, and R. Rattazzi, J. High Energy Phys. 06 (2007) 045.
  35. C. Delaunay, C. Grojean, and G. Perez, J. High Energy Phys. 09 (2013) 090.
  36. C. Grojean, O. Matsedonskyi, and G. Panico, J. High Energy Phys. 10 (2013) 160.
  37. M. Ciuchini, E. Franco, S. Mishima, and L. Silvestrini, J. High Energy Phys. 08 (2013) 106.
  38. M. E. Peskin and T. Takeuchi, Phys. Rev. Lett. 65, 964 (1990).
  39. R. Barbieri, A. Pomarol, R. Rattazzi, and A. Strumia, Nucl. Phys. B703, 127 (2004).

Outline

Information

Phys. Rev. D 89, 033014– Published 25 February, 2014
  • Received 3 December 2013

© 2014 American Physical Society

Sign In to Your Journals Account

Filter

Filter

Article Lookup

Enter a citation