Probing the Gauge Content of Heavy Resonances with Soft Radiation
نویسنده
چکیده
The use of energy flow is investigated as a diagnostic tool for determining the color SU(3) representation of new resonances. It is found that the pattern of soft gluon radiation into a rapidity gap depends on color flow in the hard scattering, and reflects the gauge content of new physics. The massive soft anomalous dimension matrix for rapidity gap events is introduced for describing soft gluon emission analytically in heavy quark pair production. A gap fraction is used for quantifying the amount of soft radiation into the gap region. In general, the results illustrate that radiation is greater for a singlet resonance than for an octet. Especially, it is found that the quantitative difference is quite distinguishable for spin-1 resonances, depending on the gauge content in the new sector.
منابع مشابه
Probing the MSSM Higgs Boson Sector with Explicit CP Violation through Third Generation Fermion Pair Production at Muon Colliders
We perform a systematic study of the production of a third–generation fermion– pair, μ+μ− → f f̄ for f = τ−, b, and t in the minimal supersymmetric standard model (MSSM) with explicit CP violation, which is induced radiatively by soft trilinear interactions related to squarks of the third generation. We classify all the observables for probing the CP property of the Higgs bosons constructed by t...
متن کاملMonte Carlo calculation of shielding parameters for fast neutrons in newly developed heavy concretes
Introduction: The role of radiotherapy as a part of cancer management increases every year around the world. Thus, Radiation protection in the design of radiotherapy rooms are of great importance. Materials and Methods: In present study using Monte Carlo method, MCNPX code, fourteen types of developed high density concretes with densities ranging from 2.45 ...
متن کاملInduction of cancer stem-like cells in A549 cells after exposure to carbon ions and X-rays
Background: Cancer stem-like cells (CSCs) play a crucial role in the initiation, progression, and recurrence of cancer. Evidence indicates that the high linear energy transfer (LET) carbon ion beam is more effective against CSCs than the conventional X-ray beam. Carbon ion radiotherapy is considered as a promising cancer strategy, however, information about whether, or not, new CSCs are induced...
متن کاملExperiments on heating of low density CHO-foams by soft X-rays
Experiments, which use a combination of the PHELIX laser kJ-option and the heavy ion beam of 4-10 MeV/u energy delivered by the UNILACaccelerator, are aimed at investigation of the heavy ion energy loss in ionized matter. In these experiments a large scale (~1mm) long living (~5ns) high density plasma target with homogeneously distributed plasma density, temperature and ionization degree is req...
متن کاملProbing gauge theories: Exact results and holographic computations
In this work (which supersedes our previous preprint [1]) we determine theexpectation value of the N = 4 SU(N) SYM Lagrangian density operator in the presenceof an infinitely heavy static particle in the symmetric representation of SU(N), by meansof a D3-brane probe computation. The result that we obtain coincides with two previouscomputations of different observables, up to kin...
متن کامل