Výsledky vyhledávání - "Siannah Penaranda"

Radiative corrections to the Higgs potential in the LH model

Autor: Siannah Penaranda, Antonio Dobado, Lourdes Tabares-Cheluci, Javier Rodríguez-Laguna

Publikováno v: E-Prints Complutense. Archivo Institucional de la UCM
instname
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid

In this work we compute the radiative corrections to the Higgs mass and the Higgs quartic couplings coming from the Higgs sector itself and the scalar fields $\phi$ in the Littlest Higgs (LH) model. The restrictions that the new contributions set on

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https://doi.org/10.1140/epjc/s10052-010-1259-9

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Towards the effective potential of the littlest Higgs model

Autor: Antonio Dobado, Siannah Penaranda, Lourdes Tabares-Cheluci

Publikováno v: E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
E-Prints Complutense. Archivo Institucional de la UCM
instname

We compute the relevant parameters of the combined Higgs and \phi scalar effective potential in the Littlest Higgs (LH) model. These parameters are obtained as the sum of two kind of contributions. The first one is the one-loop radiative corrections

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::613492da1c78e9e28459f368a885945d
https://doi.org/10.1140/epjc/s10052-008-0776-2

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Yukawa coupling quantum corrections to the self-couplings of the lightest MSSM Higgs boson

Autor: Siannah Penaranda, Wolfgang Hollik

Publikováno v: The European Physical Journal C. 23:163-172

A detailed analysis of the top-quark/squark quantum corrections to the lightest CP-even Higgs boson (h^0) self-couplings is presented in the MSSM. By considering the leading one-loop Yukawa-coupling contributions of O(m_t^4), we discuss the decouplin

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https://doi.org/10.1007/s100520100862

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Effective squark/chargino/neutralino couplings: MadGraph implementation

Autor: Arian Abrahantes, Raul Sanchez-Florit, Jaume Guasch, Siannah Penaranda

Publikováno v: Dipòsit Digital de la UB
Universidad de Barcelona
Recercat. Dipósit de la Recerca de Catalunya
instname

We have included the effective description of squark interactions with charginos/neutralinos in the MadGraph MSSM model. This effective description includes the effective Yukawa couplings, and another logarithmic term which encodes the supersymmetry-

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On the electroweak symmetry breaking in the Littlest Higgs model

Autor: Lourdes Tabares, Siannah Penaranda, Antonio Dobado

Publikováno v: E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
Digital.CSIC. Repositorio Institucional del CSIC
instname
E-Prints Complutense. Archivo Institucional de la UCM

8 pages, 3 figures.-- ISI Article Identifier: 000245853100015.-- ArXiv pre-print available at: http://arxiv.org/abs/hep-ph/0606031
Printed version published Apr 2007.
In SU(5)/SO(5) little Higgs models radiative corrections give rise to SU(

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd8f0d1e36c563fffa8e27d2712a5ba3
http://cds.cern.ch/record/955885

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Single top-quark production by direct supersymmetric flavor-changing neutral-current interactions at the LHC

Autor: Wolfgang Hollik, Jaume Guasch, Joan Sola, Siannah Penaranda

Production of (electrically neutral) heavy-quark pairs, such as t{\bar c} and {\bar t}c, is extremely suppressed in the SM. In supersymmetric (SUSY) theories, such as the MSSM, the number of these events can be significantly enhanced thanks (mainly)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8eab9b71d8b90b6d851ac43f0dbdba2
http://cds.cern.ch/record/924631

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Self-interactions of the lightest minimal supersymmetric standard model Higgs boson in the large pseudoscalar-mass limit

Autor: Siannah Penaranda, M. J. Herrero, Wolfgang Hollik, Antonio Dobado

Publikováno v: E-Prints Complutense. Archivo Institucional de la UCM
instname
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid

We investigate the decoupling properties of the Higgs-sector-induced one-loop corrections in the lightest Higgs-boson self-couplings, in the framework of the minimal supersymmetric standard model (MSSM). The renormalized n-point vertex functions with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f36b048841aab73d2e89f4d34150aaef
https://doi.org/10.1103/physrevd.66.095016

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SupersymmetricQCDdecoupling properties inH+→tb¯decay

Autor: David Temes, Siannah Penaranda, Maria J. Herrero

Publikováno v: Physical Review D. 64

The SUSY-QCD radiative corrections to the \Gamma (H+ -> t \bar b) partial decay width are analyzed within the Minimal Supersymmetric Standard Model at the one-loop level, {\mathcal O}(\alpha_s), and in the decoupling limit. We present the analytical

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9faf0c3758c127b028e72e8da9503501
https://doi.org/10.1103/physrevd.64.115003

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Supersymmetric QCD corrections to the minimal supersymmetric standard modelh0bb¯vertex in the decoupling limit

Autor: David Temes, Stefano Rigolin, Howard E. Haber, Siannah Penaranda, Heather E. Logan, Maria J. Herrero

Publikováno v: Physical Review D. 63

We analyze the supersymmetric (SUSY) QCD contribution to the h 0 b ¯ coupling at one loop in the Minimal Supersymmetric Model (MSSM) in the decoupling limit. Analytic expressions in the large SUSY mass region are derived and the decoupling behavior

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0ea22eb4c18e7f8ecc6990308dc3bce9
https://doi.org/10.1103/physrevd.63.055004

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The Higgs sector of the MSSM in the decoupling limit

Autor: Siannah Penaranda, Antonio Dobado, Maria J. Herrero

Publikováno v: E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
E-Prints Complutense. Archivo Institucional de la UCM
instname

We study the heavy Higgs sector of the MSSM composed of the H^\pm, H^0 and A^0 particles in the so-called decoupling limit where m_{A^0} >> m_Z. By integrating out these heavy Higgs particles to one-loop, we compute the effective action for the elect

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