[SEMINARI]: Dr. Bloechinger: Determination of Gaugino Mass Parameters in various Linear Collider Modes

[Martin Guy]

Sorry I don't know why I received this email. I think this is due to 
a email server problem.
GM




At 11:05 am +0200 21/5/01, Arcadi Santamaria wrote:
>
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>
>                              S E M I N A R I
>
>             [Image]   Departament de Física Teòrica    [Image]
>                          Universitat de València
>                       Institut de Física Corpuscular
>                       Universitat de València - CSIC
>
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>       Determination of Gaugino Mass Parameters in various Linear Collider
>                                      Modes
>
>                            Dr Claus Bloechinger
>
>                             (Univ of Wuerzburg)
>
>  ------------------------------------------------------------------------
>                              Seminari del IFIC
>                   Tuesday 22 of May of 2001 at 04:00 PM
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>
>                                    Resum
>
> After the LHC the planed Linear Collider (LC) will be the next step in the
>  search for physics beyond the Standard Model. The Minimal Supersymmetric
> Standard Model (MSSM) is one of the favoured candidates of this search. It
>  is one of the aims of a LC to determine the underlying parameters of the
>MSSM with high precision. One of the free parameters of the MSSM is the U(1)
> gaugino mass parameter $M_1$. Mostly the SU(2) gaugino mass parameter $M_2$
>   is assumed to be connected with $M_1$ via s standard GUT relation which
> depends on the unification of the gaugino masses $M_1$, $M_2$ and $M_3$ at
> the GUT-scale. Other supersymmetric models, however, prefer other relations
>   between $M_1$, $M_2$ and $M_3$ at the GUT scale and at the weak scale.
>    Therefore it is necessary to determine $M_1$ at a LC to test the GUT
>   relation between $M_1$ and $M_2$. The LC will - hopefully - run in four
>     modes: For the LC four modes are in discussion: $e^-e^+$, $e^-e^-$,
>$e\gamma$ and $\gamma\gamma$. For each mode I will present a special process
> and discuss its use to determine $M_1$. The talk will end with a comparison
>                        of the four modes of the LC.
>
>  ------------------------------------------------------------------------

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