نتایج جستجو برای: elementary particle theory

تعداد نتایج: 976432  

2003
Laurent Lellouch

Uncovering the origin of flavor mixing and CP violation is one of the main goals in elementary particle physics today. As part of this program, the constraining of the CKM unitarity triangle through the redundant measurement of its angles and sides plays a central rôle. The aim of the present summary is to review the state of the art regarding the measurement of the sides |Vub| and |Vcb|, as it...

2011
Barry R. Holstein

Allowed beta decay is studied using the elementary particle approach including all second forbidden terms. Model independent forms are given for various spectrum and correlation effects with parent polarization and/or orientation and for delayed particle emission correlations. The restrictions due to various symmetry assumptions are analyzed, as well as the problem of Coulomb corrections. We co...

1995
Georg Raffelt

The dynamics of the universe may be dominated by novel weakly interacting elementary particles, by baryons in an invisible form, by black holes, and globally by vacuum energy. The main arguments for and against such hypotheses are reviewed.

2004
B G Sidharth

In the context of the fact that the existence of dark energy causing the accelerated expansion of the universe has been confirmed by the WMAP and the Sloan Digital Sky Survey, we reexamine gravitation itself, starting with the formulation of Sakharov and show that it is possible to obtain gravitation in terms of the electromagnetic charge of elementary particles, once the ZPF and its effects at...

2002
Volodymyr Krasnoholovets

Based on the theory of submicroscopic quantum mechanics recently constructed by the author the mass of elementary spatial excitations called inertons, which accompany a moving particle, is estimated herein. These excitations are treated as carriers of both inertial and gravitational properties of the particle.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1386

چکیده ندارد.

1996
Arttu K. Rajantie

The two point integrals contributing to the self energy of a particle in a three dimensional quantum field theory are calculated to two loop order in perturbation theory as well as the vacuum ones contributing to the effective potential to three loop order. For almost every integral an expression in terms of elementary and dilogarithm functions is obtained. For two integrals, the master integra...

2008
M. Combescot O. Betbeder-Matibet M. A. Dupertuis

To test the validity of replacing a composite fermion by an elementary fermion,we calculate the transition rate from a statemade of one free electron and one trion to a similar electron–trion pair, through the time evolution of such a pair induced by Coulomb interaction between elementary fermions. It is convenient to describe trion as one electron interacting with one exciton. This allows us t...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم 1388

چکیده ندارد.

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