Title: Probing strong electroweak symmetry breaking dynamics through quantum interferometry at the LHC

Journal Article · · Physical Review. D, Particles, Fields, Gravitation and Cosmology
 [1];  [2];  [3]
  1. Univ. of California, Berkeley, CA (United States). Dept. of Physics; Univ. of Tokyo (Japan). Kavli Inst. for the Physics and Mathematics of the Universe (WPI) and Todai Inst. for Advanced Study; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Theoretical Physics Group
  2. Michigan State Univ., East Lansing, MI (United States). Dept. of Physics and Astronomy; Indian Inst. of Technology Bombay, Mumbai (India). Dept. of Physics
  3. Chinese Academy of Sciences (CAS), Beijing (China). State Key Lab. of Theoretical Physics and Kavli Inst. for Theoretical Physics China (KITPC) and Inst. of Theoretical Physics
+ Show Author Affiliations

Here, we present a new probe of strongly coupled electroweak symmetry breaking at the 14 TeV LHC by measuring a phase shift in the event distribution of the decay azimuthal angles in massive gauge boson scattering. One generically expects a large phase shift in the longitudinal gauge boson scattering amplitude due to the presence of broad resonances. This phase shift is observable as an interference effect between the strongly interacting longitudinal modes and the transverse modes of the gauge bosons. We find that even very broad resonances of masses up to 900 GeV can be probed at 3σ significance with a 3000 fb-1 run of the LHC by using this technique. We also present the estimated reach for a future 50 TeV proton-proton collider.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
Council for Science and Technology Policy (CSTP); Japan Society for the Promotion of Science (JSPS); Ministry of Education, Culture, Sports, Science and Technology (MEXT); National Science Foundation (NSF); Subaru Measurements of Images and Redshifts (SuMIRe); USDOE Office of Science (SC)
Grant/Contract Number:
AC02-05CH11231; AC03-76SF00098
OSTI ID:
1439182
Journal Information:
Physical Review. D, Particles, Fields, Gravitation and Cosmology, Journal Name: Physical Review. D, Particles, Fields, Gravitation and Cosmology Journal Issue: 11 Vol. 92; ISSN PRVDAQ; ISSN 1550-7998
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (15)

On the solution of certain singular integral equations of quantum field theory journal April 1958
New physics signals in longitudinal gauge boson scattering at the LHC journal March 2010
What if the Higgs couplings to W and Z bosons are larger than in the Standard Model? journal April 2012
Strong double higgs production at the LHC journal May 2010
The universal Higgs fit journal May 2014
A new Monte Carlo event generator for high energy physics journal July 1986
Probing the weak boson sector in e+e−→W+W− journal January 1987
Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC journal September 2012
Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC journal September 2012
Theory and phenomenology of two-Higgs-doublet models journal July 2012
New Generation of Parton Distributions with Uncertainties from Global QCD Analysis journal July 2002
π π Partial-Wave Analysis from Reactions π + p → π + π − Δ + + and π + p → K + K − Δ + + at 7.1 GeV/ c journal March 1973
Higgs mechanism and loop-induced decays of a scalar into two Z bosons journal January 2010
W -jet tagging: Optimizing the identification of boosted hadronically-decaying W bosons journal April 2011
Landau-Yang Theorem and Decays of a Z ′ Boson into Two Z Bosons journal August 2008

Cited By (3)

Strongly interacting dynamics and the search for new physics at the LHC journal June 2016
The complete HEFT Lagrangian after the LHC Run I journal July 2016
The complete HEFT Lagrangian after the LHC Run I text January 2016

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