English
Related papers

Related papers: Radiative Corrections In An Ultraviolet Complete E…

200 papers

We calculate the full one-loop electroweak (FEW) corrections to $H^-\to\widetilde{\chi}^-_1\widetilde{\chi}^0_i$ in the minimal supersymmetric standard model (MSSM), and compare with the leading order (LO) corrections including the loops of…

High Energy Physics - Phenomenology · Physics 2009-11-11 Zhao Li , Chong Sheng Li , Qiang Li , Li Lin Yang , Jun Zhao

We study one loop electroweak corrections to the production of a pair of charged Higgs bosons through an intermediate $Z$-boson or photon. In particular, we consider the effects of graphs with top and bottom quarks and squarks in the loop…

High Energy Physics - Phenomenology · Physics 2016-09-01 Marco A. Diaz , Tonnis A. ter Veldhuis

If the top is very heavy, m_t >> M_Z, the dominant radiative correction effects in all electroweak precision tests can be exactly characterized in terms of two quantities, the rho-parameter and the GIM violating Z -> b bbar coupling. These…

High Energy Physics - Phenomenology · Physics 2009-10-22 Riccardo Barbieri , Matteo Beccaria , Paolo Ciafaloni , Giuseppe Curci , Andrea Vicere'

We present the full ${\cal O}(\alpha_{{ew}})$ electroweak radiative corrections to the Higgs-boson production in association with $Z^0$-boson pair at an electron-positron linear collider(LC) in the standard model. We analyze the dependence…

High Energy Physics - Phenomenology · Physics 2009-11-11 Zhou Ya-Jin , Ma Wen-Gan , Zhang Ren-You , Jiang Yi , Han Liang

We study the electroweak phase transition in a supersymmetric version of the Standard Model, in which a gauge singlet superfield is added to the Higgs sector. We show that the order of the transition is determined by the trilinear soft…

High Energy Physics - Phenomenology · Physics 2009-10-22 M. Pietroni

The complete set of two-loop electroweak corrections to the decay width of the Higgs boson into two photons is presented. Two-loop contributions involving weak bosons and the top quark are computed in terms of an expansion in the Higgs…

High Energy Physics - Phenomenology · Physics 2010-04-05 Giuseppe Degrassi , Fabio Maltoni

We review recent theoretical progress in the computation of radiative corrections beyond one loop within the standard model of electroweak interactions, both in the gauge and Higgs sectors. In the gauge sector, we discuss universal…

High Energy Physics - Phenomenology · Physics 2007-05-23 Bernd A. Kniehl

We have examined the evidence for the electroweak radiative corrections in the LEP precision data along with the intriguing possibility that the QED corrections only may be sufficient to fit the data. We find that the situation is very…

High Energy Physics - Phenomenology · Physics 2009-09-25 Kyungsik Kang , Sin Kyu Kang

An electroweak model in which the masses of the W and Z bosons and the fermions are generated by quantum loop graphs through a symmetry breaking is investigated. The model is based on a regularized quantum field theory in which the quantum…

High Energy Physics - Phenomenology · Physics 2009-08-07 J. W. Moffat , V. T. Toth

We review recent theoretical progress in the computation of radiative corrections beyond one loop within the standard model of electroweak interactions, both in the gauge and Higgs sectors. In the gauge sector, we discuss universal…

High Energy Physics - Phenomenology · Physics 2015-06-25 Bernd A. Kniehl

We explore the one-loop electroweak radiative corrections in $SU(5)\times U(1)$ supergravity via explicit calculation of vacuum-polarization and vertex-correction contributions to the $\epsilon_1$ and $\epsilon_b$ parameters.…

High Energy Physics - Phenomenology · Physics 2009-08-25 J. L. Lopez , D. V. Nanopoulos , G. T. Park , A. Zichichi

We examine the one loop effective potential in a recently proposed (by Chernodub et. al.) alternative approach to mass generation in the Higgs-gauge sector of the electroweak theory, which does not make use of a classical Higgs potential.…

High Energy Physics - Phenomenology · Physics 2011-05-05 Srijit Bhattacharjee , Parthasarathi Majumdar

We present the computation of the leading one-loop electroweak radiative corrections to the non-standard top quark decay width Gamma(t->H+ b), using a physically motivated definition of tan(beta). We find that the corrections are large,…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. A. Coarasa , Jaume Guasch , Joan Sola

The electroweak corrections at one-loop level to the process $H\rightarrow t{\bar t}$ are calculated, especially the fresh top mass value announced recently by CDF is concerned. For $M_H < 1. TeV$ where a perturbative calculation is valid,…

High Energy Physics - Phenomenology · Physics 2015-06-25 Xiao-Xi Chen , Wen-Gan Ma , Yao-Yang Liu , La-Zhen Sun , Chao-Hsi Chang

The complete electroweak O(alpha) radiative corrections to the Higgs-boson production processes e+ e- -> nu_l anti-nu_l H (l=e,mu,tau) are calculated in the electroweak Standard Model. For e+ e- -> nu_e anti-nu_e H, where ZH production and…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Denner , S. Dittmaier , M. Roth , M. M. Weber

We have examined the evidence for the electroweak radiative corrections in the LEP precision data sets of 1993 and 1994 along with the intriguing possibility that the QED corrections only may be sufficient to fit the data within the…

High Energy Physics - Phenomenology · Physics 2009-09-25 Kyungsik Kang , Sin Kyu Kang

An estimate is presented of the leading radiative corrections to low energy electroweak precision measurements from strong nonresonant WW scattering at the TeV energy scale. The estimate is based on a novel representation of nonresonant…

High Energy Physics - Phenomenology · Physics 2009-10-31 Michael S. Chanowitz

Starting from the unmixed Lagrangian, the electro-weak radiative corrections are recomputed using symmetrical generalised functions. All gauge bosons acquire an indeterminate mass. Electro-weak mixing is obtained by diagonalization of the…

High Energy Physics - Phenomenology · Physics 2008-02-03 J. J. Lodder

We examine the possibility of necessary and inevitable radiative electroweak symmetry breaking by one-loop radiative corrections in a class of string models which are the string realization of "brane world" scenario. As an example, we…

High Energy Physics - Phenomenology · Physics 2017-08-23 Noriaki Kitazawa

If the Standard Model (SM) is an effective theory, as currently believed, it is valid up to some energy scale $\Lambda$ to which the Higgs vacuum expectation value is sensitive throughout radiative quadratic terms. The latter ones…

High Energy Physics - Phenomenology · Physics 2015-08-12 Isabella Masina , Germano Nardini , Mariano Quiros