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

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.
Authors:
 [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
Publication Date:
Grant/Contract Number:
AC02-05CH11231; AC03-76SF00098; PHY-1002399; 23540289; PHY-0855561
Type:
Accepted Manuscript
Journal Name:
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Additional Journal Information:
Journal Volume: 92; Journal Issue: 11; Related Information: © 2015 American Physical Society.; Journal ID: ISSN 1550-7998
Publisher:
American Physical Society (APS)
Research Org:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC); National Science Foundation (NSF); Japan Society for the Promotion of Science (JSPS); Subaru Measurements of Images and Redshifts (SuMIRe); Council for Science and Technology Policy (CSTP); Ministry of Education, Culture, Sports, Science and Technology (MEXT)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 43 PARTICLE ACCELERATORS
OSTI Identifier:
1439182
Alternate Identifier(s):
OSTI ID: 1228286