نتایج جستجو برای: μ symmetry
تعداد نتایج: 111687 فیلتر نتایج به سال:
By analyzing an e+e− annihilation data sample corresponding to integrated luminosity of 2.93 fb−1 collected at a center-of-mass energy 3.773 GeV with the BESIII detector, we measure branching fraction D0→ρ−μ+νμ decay for first time. We obtain BD0→ρ−μ+νμ=(1.35±0.09stat±0.09syst)×10−3. Using world average BD0→ρ−e+νe, find ratio BD0→ρ−μ+νμ/BD0→ρ−e+νe=0.90±0.11, which agrees theoretical expectation...
A bstract We develop a model of sneutrino inflation that is charged under U(1) B−L gauge symmetry, in no-scale supergravity framework. The provides an interesting modification tribrid inflation. impose R symmetry on the renormalizable level while allow Planck suppressed non-renormalizable operators break R-symmetry. This plays crucial role realizing Starobinsly-like scenario from one hand. On o...
It is generally assumed that the dynamical generation of the Higgs mass parameter of the superpotential, μ, implies the existence of a light singlet at or below the supersymmetry breaking scale, MSUSY. We present a counter-example in which the singlet field can receive an arbitrarily heavy mass (e.g., of the order of the Planck scale, MP ≈ 1019 GeV). In this example, a non-zero value of μ is ge...
Outer-shell s0/p0 orbital mixing with d10 orbitals and symmetry reduction upon cupriphication of cyclic trinuclear trigonal-planar gold(I) complexes are found to sensitize ground-state Cu(I)-Au(I) covalent bonds and near-unity phosphorescence quantum yields. Heterobimetallic Au4Cu2 {[Au4(μ-C2,N3-EtIm)4Cu2(µ-3,5-(CF3)2Pz)2], (4a)}, Au2Cu {[Au2(μ-C2,N3-BzIm)2Cu(µ-3,5-(CF3)2Pz)], (1) and [Au2(μ-C2...
The μνSSM is a supersymmetric standard model that solves the μ problem of the MSSM using the R-parity breaking couplings between the right-handed neutrino superfields and the Higgses in the superpotential, λi ν̂ c i ĤdĤu. The μ term is generated spontaneously through sneutrino vacuum expectation values, μ = λi〈ν̃ i 〉, once the electroweak symmetry is broken. In addition, the couplings κijk ν̂ c i ...
The μ parameter of the supersymmetric standard model is replaced by λS, where S is a singlet chiral superfield, introducing a Peccei–Quinn symmetry into the theory. Dynamics at the electroweak scale naturally solves both the strong CP and μ problems as long as λ is of order √ MZ/Mpl or smaller, and yet this theory has the same number of relevant parameters as the supersymmetric standard model. ...
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