Zobrazeno 1 - 10
of 212
pro vyhledávání: '"PESTIEAU, J."'
Autor:
Castro, G. Lopez, Pestieau, J.
An empirical formula relating the physical masses of elementary particles and the Fermi constant is proposed. Although no mechanism or theoretical model behind this formula is advocated, we seek for a possible physical interpretation. If not a simple
Externí odkaz:
http://arxiv.org/abs/1305.4208
Autor:
Castro, G. Lopez, Pestieau, J.
Publikováno v:
Mod.Phys.Lett.A22:2909-2916,2007
We propose some empirical formulae relating the masses of the heaviest particles in the standard model (the W,Z,H bosons and the t quark) to the charge of the positron $e$ and the Higgs condensate v. The relations for the masses of gauge bosons m_W =
Externí odkaz:
http://arxiv.org/abs/hep-ph/0609131
Autor:
Decker, R., Pestieau, J.
This paper has been presented at the DESY Workshop, October 22-24, 1979. Assuming cancellation of lepton self-mass ultraviolet divergences in the SU(2) x U(1) gauge theory, we predict heavy quark t and Higgs scalar masses. In Eq.(6), the mass sum rul
Externí odkaz:
http://arxiv.org/abs/hep-ph/0512126
Publikováno v:
Phys.Lett. B588 (2004) 81-84
A Regge model calculation relates the strong phase in $B \to DK$ to that in $B\to D\pi$. This provides a significant test of a hadronic picture of final state interactions in B decays.
Comment: 8 pages and 1 eps figure
Comment: 8 pages and 1 eps figure
Externí odkaz:
http://arxiv.org/abs/hep-ph/0311163
Publikováno v:
Phys.Rev.D69:074033,2004
We consider the phenomenological description of the two pion invariant mass spectrum in the $V' \to V \pi\pi$ decays. We study the parametrization of the amplitude involving both $S$ and $D$ wave contributions. From a fit to the two pion decays of th
Externí odkaz:
http://arxiv.org/abs/hep-ph/0311133
The definition of the physical properties of particles in perturbative gauge theories must satisfy gauge invariance as a requisite. The Pinch Technique provides a framework to define the electromagnetic form factors and the electromagnetic static pro
Externí odkaz:
http://arxiv.org/abs/hep-ph/0211437
Publikováno v:
Eur.Phys.J.C28:107-114,2003
Using the pole approach we determine the mass and width of the $f_0(980)$; in particular, we analyze the possibility that two nearby poles are associated to it. We restrict our analysis to a neighborhood of the resonance, using $\pi\pi$ data for the
Externí odkaz:
http://arxiv.org/abs/hep-ph/0204338
Autor:
Pestieau, J., Smith, C.
Publikováno v:
Int.J.Mod.Phys. A17 (2002) 4113-4132
A simple method to compute QED bound state properties is presented, in which binding energy effects are treated non-perturbatively. It is shown that to take the effects of all ladder Coulomb photon exchanges into account, one can simply perform the d
Externí odkaz:
http://arxiv.org/abs/hep-ph/0111380
Autor:
Pestieau, J., Smith, C.
Publikováno v:
Phys.Lett. B524 (2002) 395-399
QED gauge invariance, when combined with analyticity, leads to constraints on the low energy end of the emitted photon spectra. This is known as Low's theorem. It is shown that the Ore-Powell result, as well as further developments for the orthoposit
Externí odkaz:
http://arxiv.org/abs/hep-ph/0111264
Publikováno v:
Int.J.Mod.Phys.A17:1355-1398,2002
The construction of positronium decay amplitudes is handled through the use of dispersion relations. In this way, emphasis is put on basic QED principles: gauge invariance and soft-photon limits (analyticity). A firm grounding is given to the factori
Externí odkaz:
http://arxiv.org/abs/hep-ph/0105034