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

Murayama, Hitoshi; Rentala, Vikram; Shu, Jing

doi:10.1103/PhysRevD.92.116002

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

Journal Article · Mon Dec 07 00:00:00 EST 2015 · Physical Review. D, Particles, Fields, Gravitation and Cosmology

DOI:https://doi.org/10.1103/PhysRevD.92.116002· OSTI ID:1439182

Murayama, Hitoshi ^[1]; Rentala, Vikram ^[2]; Shu, Jing ^[3]

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
Michigan State Univ., East Lansing, MI (United States). Dept. of Physics and Astronomy; Indian Inst. of Technology Bombay, Mumbai (India). Dept. of Physics
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

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.

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Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: 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)

Grant/Contract Number:: AC02-05CH11231; AC03-76SF00098; PHY-1002399; 23540289; PHY-0855561

OSTI ID:: 1439182

Alternate ID(s):: OSTI ID: 1228286

Journal Information:: Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 92, Issue 11; Related Information: © 2015 American Physical Society.; ISSN 1550-7998

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 3 works

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The complete HEFT Lagrangian after the LHC Run I Brivio, I.; Gonzalez-Fraile, J.; Gonzalez-Garcia, M. C. arXiv https://doi.org/10.48550/arxiv.1604.06801	text	January 2016