On the interaction of spin 3 2 particles
نویسنده
چکیده
Lagrangian of a massive particle with spin 3 2 is considered in the Rarita-Schwinger formalism. We discuss implications of the contactand the gauge-transformation on the physical content of free and interacting theories. It is shown that the “contact-invariance” is trivial and has no physical relevance. The requirement of the gauge-invariance of the free lagrangian fixes the off-shell lower-spin content of the spin3 2 field. The gaugeinvariance of the interaction lagrangian insures that these lower-spin components are not coupled, and (probably always) leads to theories consistent with local causality.
منابع مشابه
حالات مزونها و وابستگی آنها به اسپین و ایزواسپین
Meson is composed of one quark and one antiquark moving under the effect of confinement, oscillating and color potentials. Since quarks are particles with spin , there is a spin-spin interaction potential. Also we have isospins for u and d quarks and we can consider related potentials on isospin-isospin and spin-isospin effects. By comparing the given meson spectrum with the amount calculated...
متن کاملطیف مزونها و وابستگی به پتانسیلهای فوق ریز
In most models, mesons consist of quark -antiquark pairs moving in a confining potential. However, it would be interesting to consider the effect of an extra residual interaction by introducing the quark particles which contain a dependent spin and isospin. In the Chiral constituent quark model, the hyperfine part of the potential is provided by the interaction of the Goldstone bosons, which ...
متن کاملBounds on the electromagnetic interactions of excited spin-3/2 leptons
The success of the standard model in describing the existing phenomenology of the electroweak and strong interactions is rather impressive. Yet few theorists believe the standard model is a fully satisfactory theory of fundamental interactions, since it leaves some important questions unanswered. In view of the shortcomings of the standard model, a host of extended models has been put forward, ...
متن کاملمدل کوارکی فوق مرکزی و پتانسیل وابسته به ساختار فوق ریز نوکلئون
In this article nucleons are discussed based on constituent quark model. This model aims at studying the forces among three particles and the corresponding standard two-body potential contribution. The quark potential contains a hypercentral interaction. The confining potential is composed of four components,color charge, the oscillatory potential, the interaction quark and neutral gluon, and...
متن کاملInteraction of atomic hydrogen with monometallic Au(100), Cu(100), Pt(100) surfaces and surface of bimetallic Au@Cu(100), Au@Pt(100) overlayer systems: The role of magnetism
The spin-polarized calculations in generalized gradient approximation density–functional theory (GGA–DFT) have been used to show how the existence of second metals can modify the atomic hydrogen adsorption on Au (100), Cu (100), and Pt (100) surfaces. The computed adsorption energies for the atomic hydrogen adsorbed at the surface coverage of 0.125 ML (monolayer) for the monometallic Au (100), ...
متن کاملEquation for Particles of Spin 3 2 with Anomalous Interaction
We consider tensor-bispinor equation, which describes doublets of particles with spin 32 , nonzero masses and anomalous interaction with electromagnetic field. Using this equation we find the energy levels of the particle with spin 32 in constant magnetic field, crossed electric and magnetic fields. We show that it is possible to introduce anomalous interaction in such way that energy levels ar...
متن کامل