نتایج جستجو برای: λ symmetry

تعداد نتایج: 112133  

Journal: :International Journal of Geometric Methods in Modern Physics 2008

2005
L. Fehér I. Tsutsui T. Fülöp

We quantize the 1-dimensional 3-body problem with harmonic and inverse square pair potential by separating the Schrödinger equation following the classic work of Calogero, but allowing all possible self-adjoint boundary conditions for the angular and radial Hamiltonians. The inverse square coupling constant is taken to be g = 2ν(ν − 1) with 1 2 < ν < 3 2 and then the angular Hamiltonian is show...

1996
Francesco Vissani

We prove that any product of R-parity violating couplings λ (L-violating) and λ (B-violating) can be strongly restricted by proton decay data. For any pair λ and λ the decay exists at least at one loop level. For squark masses below 1 TeV we find the conservative bounds |λ′ · λ′′| < 10 in absence of squark flavor mixing, and |λ′ · λ′′| < 10 when this mixing is taken into account. We study the d...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده علوم ریاضی 1388

در این پایان نامه بسط مجانبی مقادیر ویژه متناظر با مسئله اشتورم-لیوویل منظم را بدست می آوریم که در شرط مرزی و اولیه آن پارامتر λ مستقل از x ظاهر شده است. روش کارمبتنی بر جوابهای مجانبی معادله ریکاتی متناظر است که با روش تراجعی جملات آن مشخص شده اند. در حقیقت هدف ما یافتن جواب مجانبی معادله ریکاتی بر حسب توانهای بزرگتر (1تقسیم برλ√)وقتی ∞→ λ به بینهایت می رود، می باشد.

2005
L. Fehér I. Tsutsui T. Fülöp

We quantize the 1-dimensional 3-body problem with harmonic and inverse square pair potential by separating the Schrödinger equation following the classic work of Calogero, but allowing all possible self-adjoint boundary conditions for the angular and radial Hamiltonians. The inverse square coupling constant is taken to be g = 2ν(ν − 1) with 1 2 < ν < 3 2 and then the angular Hamiltonian is show...

2005
A C Aguilar J Papavassiliou

We study the impact on chiral symmetry breaking of a recently developed model for the QCD analytic invariant charge. This charge contains no adjustable parameters, other than the QCD mass scale Λ, and embodies asymptotic freedom and infrared enhancement into a single expression. Its incorporation into the standard form of the quark gap equation gives rise to solutions for the dynamically genera...

2002
C. QUESNE

Fractional supersymmetric quantum mechanics of order λ is realized in terms of the generators of a generalized deformed oscillator algebra and a Zλgrading structure is imposed on the Fock space of the latter. This realization is shown to be fully reducible with the irreducible components providing λ sets of minimally bosonized operators corresponding to both unbroken and broken cases. It also f...

2004
L. Fehér I. Tsutsui T. Fülöp

We quantize the 1-dimensional 3-body problem with harmonic and inverse square pair potential by separating the Schrödinger equation following the classic work of Calogero, but allowing all possible self-adjoint boundary conditions for the angular and radial Hamiltonians. The inverse square coupling constant is taken to be g = 2ν(ν − 1) with 1 2 < ν < 3 2 and then the angular Hamiltonian is show...

Journal: :Physical review. B, Condensed matter 1989
Choi Harris Mele

We consider a generalized anisotropic planar-rotor model on a triangular lattice for interchain orientational ordering of undoped and doped polyacetylene, and investigate the effects of various terms on the symmetry and the range of stability of the observed herringbone (HB) phases. Dipole, quadrupole, and octopole interactions are included in the model with sixfold crystal-field anisotropy and...

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