نتایج جستجو برای: elementary particle coupling constant

تعداد نتایج: 565060  

1994
Toru Goto Yasuhiro Okada

We study the constraint on the mass of the charged Higgs boson in the minimal supergravity model based on the recent measurement of the inclusive b → s γ decay. It is shown that the lower bound for the charged Higgs mass crucially depends on the sign of the higgsino mass parameter (μ). For μ < 0, the bound exceeds 400 GeV when the ratio of two Higgs vacuum expectation values (tanβ) is larger th...

1994
Marco Frasca

We consider a massive fermion interacting with a U(1) gauge field in the limit of a large coupling constant. It is found that the current has a generalized London term that can originate massive excitations for two of the three components of the gauge field, which disappear for a free particle at rest. The origin of the superconductive term is due to a partial breaking of the gauge symmetry in ...

Journal: :Symmetry 2022

Due to the cluster reducibility of multiquark operators, a strong interplay exists in tetraquarks between compact structure, resulting from direct confining forces acting on quarks and gluons, molecular dominated by mesonic clusters. This issue is studied within an effective field theory approach, where tetraquark treated as elementary particle. The key ingredient analysis provided primary coup...

1999
Antonio Carlos Antunes

We study the J=O bound states for a system of, three identical spinless particles interacting in pairs through delta-shell potentials. The Efimov states are identified, and their wavefunctions obtained. We have found a new family of bound states, which occur for higher values of the attractive coupling strength. *Supported in part by the U. S. Energy Research and Development Administration. TSu...

2008
Yasuhiro Okada

The Higgs particle is a new elementary particle predicted in the Standard Model of the elementary particle physics. It plays a special role in the theory of mass generation of quarks, leptons, and gauge bosons. In this article, theoretical issues on the Higgs mechanism are first discussed, and then experimental prospects on the Higgs particle study at the future collider experiments, LHC and IL...

2002
A. M. Fedotov N. B. Narozhny V. D. Mur V. A. Belinski

We propose a scalar background in Minkowski spacetime imparting constant proper acceleration to a classical particle. In contrast to the case of a constant electric field the proposed scalar potential does not create particle-antiparticle pairs. Therefore an elementary particle accelerated by such field is a more appropriate candidate for an " Unruh-detector " than a particle moving in a consta...

Journal: :Physical review. B, Condensed matter 1994
Mucciolo Shastry Simons Altshuler

We present exact results for the dynamical structure function, i.e. the densitydensity correlations for the 1/r2 system of interacting particles at three special values of the coupling constant. The results are interpreted in terms of exact excitations of the model which are available from Bethe’s Ansatz, thereby throwing light on the quasi-particle content of the elementary excitations. We als...

1996
Glennys R. Farrar Marta Losada

We analyze the effective 3 dimensional theory previously constructed for the MSSM and multi-Higgs models to determine the regions of parameter space in which the electroweak phase transition is sufficiently strong for a B + L asymmetry to survive in the low temperature phase. We find that the inclusion of all supersymmetric scalars and all 1-loop corrections has the effect of enhancing the stre...

1999
Michael Bordag

Electroweak phase transition in a magnetic field is investigated within the one-loop and ring diagram contributions to an effective potential. All fundamental fermions and bosons are included with their actual values of masses . The only free parameter remains the Higgs boson mass mH . It is shown that the ring diagrams affect the phase transition drastically . The effective potential is real a...

1995
Matti Pitkänen

The p-adic description of Higgs mechanism in TGD framework provides excellent predictions for elementary particle and hadrons masses ([email protected] 9410058-62). The gauge group of TGD is just the gauge group of the standard model so that it makes sense to study the p-adic counterpart of the standard model as a candidate for low energy effective theory. Momentum eigen states can be constru...

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