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TESLA-TDR- Part III: Physics at an e+e- Linear Collider 
Auteur(s): Djouadi Abdelhak, Kneur J.-L., Moultaka G., Muhlleitneral M.m.
Rapport d'expertise: Texte intégral en Openaccess : 
Ref Arxiv: hep-ph/0106315
Ref. & Cit.: NASA ADS
Résumé: The TESLA Technical Design Report Part III: Physics at an e+e- Linear Collider
Commentaires: 192 pages, 131 figures. Some figures have reduced quality. Full quality figures can be obtained from this http URL Editors - R.-D. Heuer, D.J. Miller, F. Richard, P.M. Zerwas
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Infrared Quasi Fixed Point Structures in Extended Yukawa Sectors and Application to R-parity Violation
Auteur(s): Moultaka G., Mambrini Y.
(Article) Publié:
Physical Review D, vol. 65 p.115011 (2002)
Texte intégral en Openaccess :
Ref HAL: hal-00368877_v1
Ref Arxiv: hep-ph/0112353
DOI: 10.1103/PhysRevD.65.115011
WoS: 000176770900065
Ref. & Cit.: NASA ADS
Exporter : BibTex | endNote
6 Citations
Résumé: We investigate one-loop renormalization group evolutions of extended sectors of Yukawa type couplings. It is shown that Landau Poles which usually provide necessary low energy upper bounds that saturate quickly with increasing initial value conditions, lead in some cases to the opposite behaviour: some of the low energy couplings decrease and become vanishingly small for increasingly large initial conditions. We write down the general criteria for this to happen in typical situations, highlighting a concept of {\sl repulsive} quasi-fixed points, and illustrate the case both within a two-Yukawa toy model as well as in the minimal supersymmetric standard model with R-parity violation. In the latter case we consider the theoretical upper bounds on the various couplings, identifying regimes where $\lambda_{kl3}, \lambda'_{kkk}, \lambda''_{3kl}$ are dynamically suppressed due to the Landau Pole. We stress the importance of considering a large number of couplings simultaneously. This leads altogether to a phenomenologically interesting seesaw effect in the magnitudes of the various R-parity violating couplings, complementing and in some cases improving the existing limits.
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Comment on "infrared fixed point structure in the minimal supersymmetric standard model with baryon and lepton number violation"
Auteur(s): Mambrini Y, Moultaka G.
(Article) Publié:
Physical Review D, vol. 65 p.058901 (2002)
Texte intégral en Openaccess :
Ref HAL: hal-00406469_v1
Ref Arxiv: hep-ph/0103270
DOI: 10.1103/PhysRevD.65.058901
WoS: 000174548000119
Ref. & Cit.: NASA ADS
Exporter : BibTex | endNote
4 Citations
Résumé: We reconsider the infrared quasi-fixed points which were studied recently in the literature in the context of the baryon and lepton number violating minimal supersymmetric standard model. The complete analysis requires further care and reveals more structure than what was previously shown. The formalism we develop here is quite general, and can be readily applied to a large class of models.
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Associated H$^{-}$ W$^{+}$ Production in High Energy $e^+e^-$ Collisions
Auteur(s): Arhrib A., Capdequi-peyranere Michel , Hollik W., Moultaka G.
(Article) Publié:
Nuclear Physics B, vol. 581 p.34-60 (2000)
Texte intégral en Openaccess :
Ref HAL: hal-00347339_v1
Ref Arxiv: hep-ph/9912527
DOI: 10.1016/S0550-3213(00)00198-X
WoS: 000088344400002
Ref. & Cit.: NASA ADS
Exporter : BibTex | endNote
54 Citations
Résumé: We study the associated production of charged Higgs bosons with $W$ gaugebosons in high energy $e^+ e^-$ collisions at the one loop level. We presentthe analytical results and give a detailed discussion for the total crosssection predicted in the context of a general Two Higgs Doublet Model (THDM).
Commentaires: Latex, 31 pages, 6 figures, cosmetically improved and one reference added Journal: Nucl.Phys. B581 (2000) 34-60; Erratum-ibid. 2004 (2004) 400-401
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Stop-Stop-Higgs Production at future Linear Collider
Auteur(s): Djouadi Abdelhak, Kneur J.-L., Moultaka G.
(Document sans référence bibliographique) 1999-10-07Texte intégral en Openaccess :
Ref Arxiv: hep-ph/9910269
Ref. & Cit.: NASA ADS
Résumé: In the Minimal Supersymmetric Standard Model, the cross section for theassociated production of the lightest neutral Higgs boson with the lightest topsquark pairs can be rather substantial at high energies. We summarize theproperties of this production process at a future e^+e^- linear collider,including the $\gamma \gamma$ mode.
Commentaires: 5 pages, using sprocl.sty (included), 3 PS figures. Contribution to the proceedings of the International Workshop on Linear Colliders, Sitges, Spain, April 28-May 5, 1999
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