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The Brout-Englert-Higgs mechanism describes the generation of masses of fundamental particles in the Standard Model (SM). It predicts the existence of one scalar particle with precisely predicted couplings to fermions and gauge bosons.…

高能物理 - 唯象学 · 物理学 2023-04-25 Thomas Biekötter

In this letter we consider the distinctive phenomenology of supersymmetric models in which the scale of SUSY breaking is very low, \sqrt{F}= O(TeV), focusing on the Higgs sector and the process of electroweak breaking. Using an effective…

高能物理 - 唯象学 · 物理学 2016-09-26 Ignacio Navarro

Wavelength determines the length scale of the cross section when electromagnetic waves are scattered by an electrically small object. The cross section diverges for resonant scattering, and diminishes for non-resonant scattering, when…

光学 · 物理学 2017-11-13 Ming Zhou , Lei Ying , Ling Lu , Lei Shi , Jian Zi , Zongfu Yu

We study electroweak symmetry breaking involving the seesaw mechanism of quark condensation. These models produce a composite Higgs boson involving the left-handed top quark, yet the top mass arises naturally at the observed scale. We…

高能物理 - 唯象学 · 物理学 2009-09-11 R. Sekhar Chivukula , Bogdan A. Dobrescu , Howard Georgi , Christopher T. Hill

We investigate unitarity of $W^+W^-$ scattering in the context of theory space models of the form $U(1)\times {[SU(2)]}^N\times SU(2)_{N+1}$, which are broken down to $U(1)_{EM}$ by non-linear $\Sigma$ fields, without the presence of a…

高能物理 - 唯象学 · 物理学 2009-11-10 Roshan Foadi , Shrihari Gopalakrishna , Carl Schmidt

The $\rho$-parameter, together with the W-and Z-masses, acts as Occam's razor on extensions of the electroweak symmetry breaking sectors. We apply this to non-doublet Higgs scenarios, by examining the CDF- $II$ claim on the W-boson mass.…

高能物理 - 唯象学 · 物理学 2023-06-16 Rituparna Ghosh , Biswarup Mukhopadhyaya , Utpal Sarkar

The study of the scattering at high energy of the gauge bosons W and Z, in particular longitudinally polarized W and Z, can clarify the mechanism of spontaneous symmetry breaking in the Standard Model of the electroweak interactions.…

高能物理 - 唯象学 · 物理学 2017-08-23 Daniele Dominici

For the Higgs boson mass of $\sim 220$ GeV expected to arise from radiative electroweak symmetry breaking, we find the same lowest-order expressions as would be obtained from conventional electroweak symmetry breaking, given the same Higgs…

高能物理 - 唯象学 · 物理学 2009-11-11 F. A. Chishtie , V. Elias , T. G. Steele

Interstellar scattering causes pulsar profiles to grow asymmetrically, thus affecting the pulsar timing residuals, and is strongest at lower frequencies. Different Interstellar medium models predict different frequency ($\nu$) and…

高能天体物理现象 · 物理学 2019-05-01 Karishma Bansal , G. B. Taylor , Kevin Stovall , Jayce Dowell

There are two aspects to the 1995 summer update of the combined preliminary electroweak data from LEP and SLC. On the one hand, agreement between experiments and the Standard Model (SM) has improved for the line-shape and the asymmetry…

高能物理 - 唯象学 · 物理学 2007-05-23 Kaoru Hagiwara

Electroweak corrections to longitudinal gauge and Higgs boson scattering amplitudes are calculated. Due to Sudakov double logarithms, the effect is a suppression of amplitude that grows rapidly with increasing center of mass energy leading…

高能物理 - 唯象学 · 物理学 2015-06-04 Grigory Ovanesyan

Higgs triplet models are known to have difficulties obtaining agreement with electroweak precision data and in particular constraints on the $\rho$ parameter. Either a global $SU(2)_L \otimes SU(2)_R$ symmetry has to be imposed on the…

高能物理 - 唯象学 · 物理学 2015-06-22 Mateo Garcia-Pepin , Stefania Gori , Mariano Quiros , Roberto Vega , Roberto Vega-Morales , Tien-Tien Yu

The scattering theory of the integrable statistical models can be generalized to the case of systems with extended lines of defect. This is done by adding the reflection and transmission amplitudes for the interactions with the line of…

高能物理 - 理论 · 物理学 2009-10-28 G. Delfino , G. Mussardo , P. Simonetti

The effective field theory containing higher dimensional operators violates the unitarity of the $2 \rightarrow 2$ scattering processes in the Standard Model. This unitarity violation depends on the values of the Wilson coefficients…

高能物理 - 唯象学 · 物理学 2025-02-05 Swagata Ghosh , Rashidul Islam

We match the known chiral perturbation theory representation of the pi pi scattering amplitude to two loops with a phenomenological description that relies on the Roy equations. On this basis, the corrections to Weinberg's low energy…

高能物理 - 唯象学 · 物理学 2011-05-05 G. Colangelo , J. Gasser , H. Leutwyler

Due to the mass gap between the Standard Model and possible New Physics states, electroweak effective approaches are appropriate. Although a linear realization of the electroweak symmetry breaking with the Higgs forming a doublet together…

高能物理 - 唯象学 · 物理学 2019-10-07 Ignasi Rosell , Claudius Krause , Antonio Pich , Juan José Sanz-Cillero

Based upon our recent study on the Lorentz non-invariance ambiguity in the longitudinal weak-boson scatterings and the precise conditions for the validity of the Equivalence Theorem (ET), we further examine the intrinsic connection between…

高能物理 - 唯象学 · 物理学 2019-08-15 H. -J. He , Y. -P. Kuang , C. -P. Yuan

We study Radiative Electroweak Symmetry Breaking in the Minimal Supersymmetric Standard Model (MSSM). We employ the 2-loop Renormalization Group equations for running masses and couplings taking into account sparticle threshold effects. The…

高能物理 - 唯象学 · 物理学 2007-05-23 K. Tamvakis

Perhaps the most important question in particle physics today is whether the boson with mass near 125 GeV discovered at the Large Hadron Collider (LHC) is the Higgs Boson of the Standard Model. Since a particularly important property of the…

高能物理 - 唯象学 · 物理学 2013-07-12 A. Freitas , J. S. Gainer

A general machine learning architecture is introduced that uses wavelet scattering coefficients of an inputted three dimensional signal as features. Solid harmonic wavelet scattering transforms of three dimensional signals were previously…

计算物理 · 物理学 2019-01-30 Xavier Brumwell , Paul Sinz , Kwang Jin Kim , Yue Qi , Matthew Hirn