Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Yi-Lei Tang"'
Autor:
Dayun Qiu, Yi-Lei Tang
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-32 (2024)
Abstract In this paper, we discuss the possibility to probe a nearly-degenerate Z ′ -Z system by analyzing the Z-lineshape at an electron-positron collider. Compared with the usual Z ′ in the literature well separated with the standard model (SM)
Externí odkaz:
https://doaj.org/article/396330fea259401b9abd86d3cdd2d282
Publikováno v:
Nuclear Physics B, Vol 999, Iss , Pp 116428- (2024)
In this paper, we propose a method to compute the muon anomalous precession frequency through solving the wave functions of the Dirac equations straightforwardly. The Lorentz violation terms are also considered. Our method is different from the tradi
Externí odkaz:
https://doaj.org/article/bd9cd6fc40ea439291bb94fe2bdac31a
Autor:
Yi-Lei Tang
Publikováno v:
Nuclear Physics B, Vol 998, Iss , Pp 116391- (2024)
The Γ-function, or the effective potential of a gauge field theory should comply with the Nielsen identity, which implies how the effective potential evolves as we shift the gauge-fixing term. In this paper, relying on an abelian toy model, we aim a
Externí odkaz:
https://doaj.org/article/58d83b30895a4c64a13af04470ce1ea4
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 7, Pp 1-22 (2021)
Abstract We propose a vector dark matter model with an exotic dark SU(2) gauge group. Two Higgs triplets are introduced to spontaneously break the symmetry. All of the dark gauge bosons become massive, and the lightest one is a viable vector DM candi
Externí odkaz:
https://doaj.org/article/1e40f6f18cd743cfa003dc306d816704
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 5, Pp 1-31 (2021)
Abstract We investigate the potential stochastic gravitational waves from first-order electroweak phase transitions in a model with pseudo-Nambu-Goldstone dark matter and two Higgs doublets. The dark matter candidate can naturally evade direct detect
Externí odkaz:
https://doaj.org/article/2095b6ff7b5943cb916b7a342b827929
Autor:
Yi-Lei Tang
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 10, Pp 1-24 (2020)
Abstract Inspired by the Goldstone equivalence gauge, we study the thermal corrections to an originally massive vector boson by checking the poles and branch cuts. We find that part of the Goldstone boson is spewed out from the longitudinal polarizat
Externí odkaz:
https://doaj.org/article/5fd4d341431746a2a045eaf665d06626
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 10, Pp 1-59 (2020)
Abstract If fermionic dark matter (DM) is stabilized by dark U(1) gauge symmetry that is spontaneously broken into its subgroup Z 2, the particle contents of the model becomes very rich: DM and excited DM, both of them are Majorana fermions, as well
Externí odkaz:
https://doaj.org/article/ab1cd654f1a74dbfa7eaa442d96f399e
Autor:
Ligong Bian, Yi-Lei Tang
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 12, Pp 1-29 (2018)
Abstract We consider the thermal effects into the evaluation of the dark matter production process. With the assistance of the right handed neutrinos, the freeze-in massive particle dark matter production history can be modified by the two-step phase
Externí odkaz:
https://doaj.org/article/8b128d8b69114c58be80051c030baf51
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 77, Iss 7, Pp 1-9 (2017)
Abstract We study the exotic decay of the 125 GeV Higgs boson (h) into a pair of light spin-0 particles ( $$\phi $$ ϕ ) which subsequently decay and result in a 4b final state. This channel is well motivated in models with an extended Higgs sector.
Externí odkaz:
https://doaj.org/article/669a256356d24ff8b6bcf60221162295
Autor:
Yi-Lei Tang
Publikováno v:
Nuclear Physics B, Vol 890, Iss , Pp 263-278 (2015)
The see-saw mechanism is usually applied to explain the lightness of neutrinos. The traditional see-saw mechanism introduces at least two right-handed neutrinos for the realistic neutrino spectrum. In the case of supersymmetry, loop corrections can a
Externí odkaz:
https://doaj.org/article/31c6830cbffa41478341faf67c67568b