EPJ Web Conf.
Volume 125, 2016The 19th International Seminar on High Energy Physics (QUARKS-2016)
|Number of page(s)||8|
|Section||2. Physics beyond the Standard Model at colliders and in rare processes; Higgs phenomenology and selected experimental results|
|Published online||28 October 2016|
E6 inspired composite Higgs model and 750 GeV diphoton excess
1 ARC Centre of Excellence for Particle Physics at the Terascale and CSSM, Department of Physics, The University of Adelaide, Adelaide SA 5005, Australia
2 Institute for Theoretical and Experimental Physics, Moscow 117218, Russia
* e-mail: firstname.lastname@example.org
Published online: 28 October 2016
In the E6 inspired composite Higgs model (E6CHM) the strongly interacting sector possesses an SU(6)×U(1)B×U(1)L global symmetry. Near scale f ≳ 10TeV the SU(6) symmetry is broken down to its SU(5) subgroup, that involves the standard model (SM) gauge group. This breakdown of SU(6) leads to a set of pseudo-Nambu-Goldstone bosons (pNGBs) including a SM–like Higgs and a SM singlet pseudoscalar A. Because of the interactions between A and exotic fermions, which ensures the approximate unification of the SM gauge couplings and anomaly cancellation in this model, the couplings of the pseudoscalar A to gauge bosons get induced. As a result, the SM singlet pNGB state A with mass around 750 GeV may give rise to sufficiently large cross section of pp → γγ that can be identified with the recently observed diphoton excess.
© The Authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.