Masse ohne Higgsteilchen

07/12/2011 - 06:23 von Vogel | Report spam




Leider braucht man dazu auch noch etwas unentdecktes, "hidden matter"




Wie Hendrik schon andeutete




An extension of the standard model of electro-weak interactions by an
extra abelian gauge boson is given, in which the extra gauge boson and
the hypercharge gauge boson both couple to an axionic scalar in a form
that leads to a Stueckelberg mass term. The theory leads to a massive
Z' whose couplings to fermions are uniquely determined and suppressed
by small mixing angles. Such a Z' could have a low mass and appear in
e+e. collisions as a sharp resonance. The branching ratios into ff_
species, and the forward-backward asymmetry are found to have
distinctive features. The model also predicts a new unit of electric
charge e' = Q'*e, where Q' is in general irrational, in the coupling
of the photon with *hidden matter* that is neutral under SU(2)L x U(1)Y .




The Stueckelberg mechanism [1] gives mass to abelian vector bosons
without breaking gauge invariance on the Lagrangian, and thus provides
an alternative to the Higgs mechanism [2] to achieve gauge symmetry
breaking without spoiling renormalizability. The simplest case is that
of one abelian vector boson A_u coupling to one axionic scalar field phi.




http://iris.lib.neu.edu/cgi/viewcon...gi?article12
&context=physics_fac_pubs


 

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#1 ThreeTrillionLightyears FromHome
19/12/2011 - 01:51 | Warnen spam
On 7 Dez., 06:23, Vogel wrote:
Leider braucht man dazu auch noch etwas unentdecktes, "hidden matter"

Wie Hendrik schon andeutete

An extension of the standard model of electro-weak interactions by an
extra abelian gauge boson is given, in which the extra gauge boson and
the hypercharge gauge boson both couple to an axionic scalar in a form
that leads to a Stueckelberg mass term. The theory leads to a massive
Z' whose couplings to fermions are uniquely determined and suppressed
by small mixing angles. Such a Z' could have a low mass and appear in
e+e. collisions as a sharp resonance. The branching ratios into ff_
species, and the forward-backward asymmetry are found to have
distinctive features. The model also predicts a new unit of electric
charge e' = Q'*e, where Q' is in general irrational, in the coupling
of the photon with *hidden matter* that is neutral under SU(2)L x U(1)Y .

The Stueckelberg mechanism [1] gives mass to abelian vector bosons
without breaking gauge invariance on the Lagrangian, and thus provides
an alternative to the Higgs mechanism [2] to achieve gauge symmetry
breaking without spoiling renormalizability. The simplest case is that
of one abelian vector boson A_u coupling to one axionic scalar field phi.

http://iris.lib.neu.edu/cgi/viewcon...gi?article12
&context=physics_fac_pubs



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