نتایج جستجو برای: intermediumte boson interaction
تعداد نتایج: 579205 فیلتر نتایج به سال:
An inclusive search for long-lived exotic particles decaying to a pair of muons is presented. The uses data collected by the CMS experiment at CERN LHC in proton-proton collisions $\sqrt{s}$ = 13 TeV 2016 and 2018 corresponding an integrated luminosity 97.6 fb$^{-1}$. experimental signature oppositely charged originating from common secondary vertex spatially separated pp interaction point dist...
The results of nuclear structure properties like reduced transition probabilities B(E2) and deformation parameter (β) of even-even 108112 Pd isotopes obtained by Cranked Hartree-Bogoliubov (CHB) calculations and Interaction Boson Model (IBM-I) are compared. The comparison is also made with the experimental values.
A new route to coherent destruction of tunneling is established by considering a monochromatic fast modulation of the self-interaction strength of a many-boson system. The modulation can be tuned such that only an arbitrarily, a priori prescribed number of particles are allowed to tunnel. The associated tunneling dynamics is sensitive to the odd or even nature of the number of bosons.
Two of the nine measurements of sin2θ eff , the effective weak interaction mixing angle, are found to be in significant conflict with the direct search limits for the Standard Model (SM) Higgs boson. Using a scale factor method, analogous to one used by the Particle Data Group, we assess the possible effect of these discrepancies on the SM fit of the Higgs boson mass. The scale factor fits incr...
Studies of the spin, parity and tensor couplings of the Higgs boson in the [Formula: see text], [Formula: see text] and [Formula: see text] decay processes at the LHC are presented. The investigations are based on [Formula: see text] of pp collision data collected by the ATLAS experiment at [Formula: see text] TeV and [Formula: see text] TeV. The Standard Model (SM) Higgs boson hypothesis, corr...
We study the quantum phase transition occurring in an infinite homogeneous system of spin 1/2 fermions in a non-relativistic context. As an example we consider neutrons interacting through a simple spin-spin Heisenberg force. The two critical values of the coupling strength — signaling the onset into the system of a finite magnetization and of the total magnetization, respectively — are found a...
We prove the Shiba relation for the spin-boson Hamil-tonian and note its generalization to ferromagnetic Ising models at h = 0 and < c with a pair interaction of subexponential decay. In this case the relation states that the two-point function decays asymptotically as the interaction potential with a prefactor given by the magnetic susceptibility squared. We prove a corresponding bound also fo...
It is shown that the gauge boson mass is naturally generated–without Higgs–in the pion beta decay using the scalar strong interaction hadron theory. This mass generation is made possible by the presence of relative time between quarks in the pion in a fully Lorentz covariant formalism.
We discuss an alternative version of the electroweak standard model, in which only the heavy t quark, not the light fermions, couples to the Higgs boson with a strength given by the standard model. The Higgs particle decays dominantly into two gluons jets. The branching ratio for the 2 γ decay is about 3.5%. The Higgs particle would be a narrow object (width about 60 KeV), and its mass might be...
We study s-wave scattering of a hadron and a Nambu-Goldstone boson induced by the model-independent low energy interaction in the flavor SU(3) symmetric limit. Establishing the general structure of the interaction based on group theoretical arguments, we find that the interaction in the exotic channels are in most cases repulsive, and that for possible attractive channels the coupling strengths...
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