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Related papers: SUSY Loop Contributions to the $W$-Pair Production…

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We study supersymmetric (SUSY) effects on $C_7(\mu_b)$ and $C'_7(\mu_b)$ which are the Wilson coefficients (WCs) for $b \to s \gamma$ at b-quark mass scale $\mu_b$ and are closely related to radiative $B$-meson decays. The SUSY-loop…

High Energy Physics - Phenomenology · Physics 2021-11-05 H. Eberl , K. Hidaka , E. Ginina , A. Ishikawa

Assuming universality of Yukawa coupling of the superpotential and maximal spontaneous CP violation, fermion masses and mixing angles including that of neutrinos are studied in an SUSY SO(10)$\times \Delta (48)\times$ U(1) model with small…

High Energy Physics - Phenomenology · Physics 2007-05-23 K. C. Chou , Yue-Liang Wu

The one loop corrections to the supersymmetric Ward identities (WIs) in the discretized N=1 SU(2) supersymmetric Yang-Mills theory can be investigated by means of lattice perturbation theory. The supersymmetry (SUSY) is explicitly broken by…

High Energy Physics - Lattice · Physics 2010-12-23 Federico Farchioni , Alessandra Feo , Tobias Galla , Claus Gebert , Robert Kirchner , István Montvay , Gernot Münster

We study the complete one loop contribution to $H^\pm\to W^\pm V$, $V= Z, \gamma$, in the Minimal Supersymmetric Standard Model (MSSM). We evaluate the MSSM contributions taking into account $B\to X_s\gamma$ constraint as well as…

High Energy Physics - Phenomenology · Physics 2008-11-26 Abdesslam Arhrib , Rachid Benbrik , Mohamed Chabab

We re-examine the one-loop renormalization group equations (RGEs) for the dimensionful parameters of the minimal supersymmetric Standard Model with broken supersymmetry, allowing for arbitrary flavour structure of the soft SUSY breaking…

High Energy Physics - Phenomenology · Physics 2011-01-17 Andrew D. Box , Xerxes Tata

The complete one-loop electroweak corrections to charged Higgs boson pair production in $\gamma\gamma$ collision mode at linear colliders in the minimal supersymmetric standard model (MSSM), are calculated in this paper. We discuss the…

High Energy Physics - Phenomenology · Physics 2009-11-11 Wang Lei , Jiang Yi , Ma Wen-Gan , Han Liang , Zhang Ren-You

The helicity amplitudes for the process $\gamma \gamma \to A^0 A^0$ are studied to 1-loop order in the minimal SUSY (MSSM) model, where $A^0$ is the CP-odd Higgs particle. Simple exact analytic formulae are obtained, in terms of the $C_0$…

High Energy Physics - Phenomenology · Physics 2008-11-26 G. J. Gounaris , P. I. Porfyriadis

We present the contributions from all types of one-loop corrections to the scattering amplitude for the pair production of polarized charginos or neutralinos from polarized electron-positron annihilation. The contributions are classified in…

High Energy Physics - Phenomenology · Physics 2015-06-25 M. A. Diaz , D. A. Ross

We study the process $e^-e^+\to ZH$ where $H$ represents the standard model (SM) Higgs particle $H_{SM}$, or the MSSM ones $h^0$ and $H^0$. In each case, we compute the one-loop effects and establish very simple expressions, called…

High Energy Physics - Phenomenology · Physics 2015-06-22 G. J. Gounaris , F. M. Renard

This report summarizes the progress in SUSY studies performed during the Extended ECFA/DESY Workshop since the TESLA TDR. Based on accurate future measurements of masses of SUSY particles and the determination of the couplings and mixing…

High Energy Physics - Phenomenology · Physics 2007-05-23 Jan Kalinowski

We analyse the CP problem in the context of a supersymmetric extension of the standard model with universal strength of Yukawa couplings. A salient feature of these models is that the CP phases are constrained to be very small by the…

High Energy Physics - Phenomenology · Physics 2009-09-25 G. C. Branco , M. E. Gomez , S. Khalil , A. M. Teixeira

The analytic expressions for the production cross sections of polarized bottom and top quarks in $e^+e^-$ annihilation are explicitly derived at the one-loop order of strong interactions. Chirality-violating mass effects will reduce the…

High Energy Physics - Phenomenology · Physics 2015-06-25 J. G. K"orner , A. Pilaftsis , M. M. Tung

Indirect information about the possible scale of supersymmetry (SUSY) breaking can be obtained from the comparison of precisely measured observables (and also of exclusion limits) with accurate theory predictions incorporating SUSY loop…

High Energy Physics - Phenomenology · Physics 2007-11-02 Georg Weiglein

We consider various processes of single top production at LHC in the theoretical framework of the MSSM and examine the role of the supersymmetric electroweak one-loop corrections in a special moderately light SUSY scenario, in an initial…

High Energy Physics - Phenomenology · Physics 2008-11-26 Matteo Beccaria , Fernand M. Renard , Claudio Verzegnassi

After a lightning review of current bounds on the masses of supersymmetric particles, we describe strategies that may be helpful for extracting signals from the production of squarks, gluinos or top squarks, and from associated…

High Energy Physics - Phenomenology · Physics 2007-05-23 Xerxes Tata

We consider one loop quantum corrections to soliton mass for the ${\cal N}=1$ supersymmetric extension of the (1+1)-dimensional scalar field theory with the potential $U(\phi) = \phi^2 \cos^2\left(\ln \phi^2\right)$. First, we compute the…

High Energy Physics - Theory · Physics 2018-12-19 A. R. Aguirre , G. Flores-Hidalgo

In this paper, we study one-loop corrections to the neutrino mass matrix in the N-B-LSSM. We obtain the N-B-LSSM from the $U(1)$ extension of the minimal supersymmetric standard model(MSSM). By adding three generation right-handed neutrino…

High Energy Physics - Phenomenology · Physics 2025-08-28 Shuang Di , Shu-Min Zhao , Ming-Yue Liu , Xing-Yu Han , Song Gao , Xing-Xing Dong

We extend to all orders in perturbation theory a method to calculate supersymmetry-breaking effects by analytic continuation of the renormalization group into superspace. A central observation is that the renormalized gauge coupling can be…

High Energy Physics - Phenomenology · Physics 2009-10-31 N. Arkani-Hamed , G. F. Giudice , M. A. Luty , R. Rattazzi

A novel approach to study electroweak physics at one-loop level in generic ${\rm SU(2)_L \times U(1)_Y}$ theories is introduced. It separates the 1-loop corrections into two pieces: process specific ones from vertex and box contributions,…

High Energy Physics - Phenomenology · Physics 2008-11-26 K. Hagiwara , D. Haidt , C. S. Kim , S. Matsumoto

We calculate the supersymmetric QCD corrections in order $\alpha_s$ to the cross section $e^+ e^- \to \sq_i \bar\sq_j$ $(i,j = 1, 2)$ within the Minimal Supersymmetric Standard Model. We pay particular attention to the case of the…

High Energy Physics - Phenomenology · Physics 2009-10-28 H. Eberl , A. Bartl , W. Majerotto