Fermion-fermion bound state condition for scalar exchanges
نویسندگان
چکیده
منابع مشابه
Fermion-fermion Bound State Condition for Scalar Exchanges
Since the experimental discovery of the mass of the neutrinos [1] a legitimate question has been posed. Is there a possibility of a bound state between weakly interacting particles such as an electron and a neutrino? If the particles involved where nonrelativistic the answer would be immediate and negative. From numerical studies of the Schrödinger equation [2] the existence of a bound state pr...
متن کاملFermion Damping in a Fermion - Scalar Plasma
In this article we study the dynamics of fermions in a fermion-scalar plasma. We begin by obtaining the effective in-medium Dirac equation in real time which is fully renormalized and causal and leads to the initial value problem. For a heavy scalar we find the novel result that the decay of the scalar into fermion pairs in the medium leads to damping of the fermionic excitations and their in-m...
متن کاملBinding Energy of Scalar Bound State by Topologically Massive Interaction: Fermion and Anti-fermion System with Heavy Mass
A bound state problem in a topologically massive quantum electrodynamics is investigated by using a non-perturbative method. We formulate the Bethe-Salpeter equation for scalar bound states composed of massive fermion and anti-fermion pair under the lowest ladder approximation. In a large mass expansion for the (anti-) fermion, we derive the Schrödinger equation and solve it by a numerical meth...
متن کاملFermion–scalar interactions with domain wall fermions
Domain wall fermions are defined on a lattice with an extra direction the size of which controls the chiral properties of the theory. When gauge fields are coupled to domain wall fermions the extra direction is treated as an internal flavor space. Here it is found that this is not the case for scalar fields. Instead, the interaction takes place only along the link that connects the boundaries o...
متن کاملTesting Abelian dyon - fermion Bound System
Characteristics of Abelian dyon fermion bound system, parity violating effects, a new series of energy spectra, effects related to the non vanishing electric dipole moment, feature of spin orientation etc, are analyzed and compared with hydrogen like atom. These analyses explore possibility of a new approach of searching for dyons under bound condition. § E-mail address: [email protected]...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review D
سال: 2008
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.78.025006