Results 91 to 100 of about 1,397,052 (220)

(In)Visible signatures of the minimal dark abelian gauge sector

Journal of High Energy Physics, 2022
In this paper we study the present and future sensitivities of the rare meson decay facilities KOTO, LHCb and Belle II to a light dark sector of the minimal dark abelian gauge symmetry where a dark Higgs S and a dark photon Z D have masses ≲ 10 GeV.
Ana Luisa Foguel, Gabriel M. Salla, Renata Zukanovich Funchal   +2 more
doaj   +1 more source

Probing general U(1)′ models with non-universal lepton charges at FASER/FASER2, COHERENT and long-baseline oscillation experiments

Journal of High Energy Physics, 2023
The general anomaly-free U(1)′ models allow non-universal lepton charges. We explore the sensitivities of FASER/FASER2, COHERENT and DUNE/T2HK precision experiments to the new gauge boson Z′ and the new CP-even scalar ϕ. With non-universal lepton charges,
Tobias Felkl, Tong Li, Jiajun Liao, Michael A. Schmidt   +3 more
doaj   +1 more source

A realistic theory of E6 unification through novel intermediate symmetries

Journal of High Energy Physics
We propose a non-supersymmetric E6 GUT with the scalar sector consisting of 650 ⨁ 351′ ⨁ 27. Making use of the first representation for the initial symmetry breaking to an intermediate stage, and the latter two representations for second-stage breaking ...
K. S. Babu, Borut Bajc, Vasja Susič
doaj   +1 more source

Three-family left-right symmetry with low-scale seesaw mechanism

, 2017
We suggest a new left-right symmetric model implementing a low-scale seesaw mechanism in which quantum consistency requires three families of fermions.
Reig, Mario, Valle, José W. F., Vaquera-Araujo, C. A.   +2 more
core   +1 more source

Constraints on the SU(3) Electroweak Model

, 2002
We consider a recent proposal by Dimopoulos and Kaplan to embed the electroweak SU(2)_L X U(1)_Y into a larger group SU(3)_W X SU(2) X U(1) at a scale above a TeV.
A. De Rujula, B. Holdom, B. Holdom, B.W. Lee, C. Csáki, C. Csáki, C.P. Burgess, Csaba Csáki, D.C. Kennedy, D.C. Kennedy, E.J. Konopinski, Graham D. Kribs, H. Georgi, H. Georgi, H. Georgi, H. Georgi, H.C. Cheng, J. Erler, John Terning, Joshua Erlich, L.J. Hall, M. Golden, M.E. Peskin, M.E. Peskin, N. Arkani-Hamed, P. Verkerk, R.S. Chivukula, S. Dimopoulos, S. Dimopoulos, S. Dimopoulos, S. Weinberg, T. Yamagata, T.K. Hemmick   +32 more
core   +1 more source

Loop Variables and the Interacting Open String in a Curved Background

, 2005
Applying the loop variable proposal to a sigma model (with boundary) in a curved target space, we give a systematic method for writing the gauge and generally covariant interacting equations of motion for the modes of the open string in a curved ...
B. SATHIAPALAN, Polyakov A. M.
core   +1 more source

Multi-lepton jets from quadruple Z′ via the Higgs decay at LHC

Journal of High Energy Physics
We investigate multi-lepton jet events from the decay of the 125 GeV Higgs boson (h) into quadruple new gauge bosons (Z′) at the LHC. Such an exotic decay is realized via the process of h → ϕϕ → Z′Z′Z′Z′ with new scalar boson ϕ in models with an ...
Jinmian Li, Takaaki Nomura, Kei Yagyu
doaj   +1 more source

Higher dimensional operators and LHC Higgs data : the role of modified kinematics

, 2014
The inclusion of higher-dimensional gauge invariant operators induces new Lorentz structures in Higgs couplings with electroweak gauge boson pairs. This in principle affects the kinematics of Higgs production and decay, thereby modifying the efficiencies
Banerjee, Shankha, Mukhopadhyay, Satyanarayan, Mukhopadhyaya, Biswarup   +2 more
core   +1 more source

Dark showers from Z-dark Z′ mixing

Journal of High Energy Physics
We discuss dark shower signals at the LHC from a dark QCD sector, containing GeV-scale dark pions. The portal with the Standard Model is given by the mixing of the Z boson with a dark Z′ coupled to the dark quarks.
Hsin-Chia Cheng, Xu-Hui Jiang, Lingfeng Li, Ennio Salvioni   +3 more
doaj   +1 more source

Dark gauge-mediated supersymmetry breaking with a massless dark photon

Journal of High Energy Physics
We study dark gauge-mediated supersymmetry breaking (dark GMSB) in a theory with a new unbroken U(1) D local symmetry and massless dark photon. Messenger fields charged under both Standard Model and dark gauge symmetries produce new soft supersymmetry ...
Brian Batell, Yechan Kim, Hye-Sung Lee, Jiheon Lee   +3 more
doaj   +1 more source