scholarly journals Excited states of isolated fermions in the Higgs phase of gauge Higgs theories

2022 ◽  
Vol 258 ◽  
pp. 02001
Author(s):  
Jeff Greensite ◽  
Kazue Matsuyama
Keyword(s):  
Mass Spectrum ◽  
Excited States ◽  
Present Evidence ◽  
Localized Excitations ◽  
Composite Objects ◽  
Higgs Fields

We present evidence that seemingly elementary and non-composite objects, namely isolated static fermions in certain gauge Higgs theories, have a mass spectrum corresponding to localized excitations of the surrounding gauge and Higgs fields.

Mass spectrum and leptonic decay constants of ground and radially excited states of ηc and ηb in a Bethe–Salpeter equation framework

2015 ◽  
Vol 24 (04) ◽  
pp. 1550030 ◽  
Author(s):  
Hluf Negash ◽  
Shashank Bhatnagar
Keyword(s):  
Mass Spectrum ◽  
Excited States ◽  
Ground State ◽  
Reasonable Agreement ◽  
Equal Mass ◽  
Leptonic Decay ◽  
Decay Constants ◽  
Pseudoscalar Mesons

In this paper, we study the mass spectrum and decay constants of ground state (1S) and radially excited states (2S and 3S) of heavy equal mass pseudoscalar mesons, ηc and ηb. We have employed the framework of Bethe–Salpeter equation (BSE) under Covariant Instantaneous Ansatz (CIA). Our predictions are in reasonable agreement with the data on available states and results of other models.

Localized excitations and the geometry of the n.pi.* excited states of pyrazine

1982 ◽  
Vol 104 (1) ◽  
pp. 60-65 ◽  
Author(s):  
Daniel A. Kleier ◽  
Richard L. Martin ◽  
Willard R. Wadt ◽  
William R. Moomaw
Keyword(s):  
Excited States ◽  
Localized Excitations

scholarly journals Radiative Decay Widths of Ground and Excited States of Vector Charmonium and Bottomonium

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Hluf Negash ◽  
Shashank Bhatnagar
Keyword(s):  
Mass Spectrum ◽  
Excited States ◽  
Mass Spectra ◽  
Reasonable Agreement ◽  
Radiative Decay ◽  
Decay Constants ◽  
Two Photon ◽  
Quantum Numbers ◽  
Decay Widths ◽  
Input Parameters

We study the radiative decay widths of vector quarkonia for the process of J/ψ(nS)→ηc(nS)γ and Υ(nS)→ηb(nS)γ (for principal quantum numbers n=1,2,3) in the framework of Bethe-Salpeter equation under the covariant instantaneous ansatz using a 4×4 form of BSE. The parameters of the framework were determined by a fit to the mass spectrum of ground states of pseudoscalar and vector quarkonia, such as ηc, ηb, J/ψ, and Υ. These input parameters so fixed were found to give good agreements with data on mass spectra of ground and excited states of pseudoscalar and vector quarkonia, leptonic decay constants of pseudoscalar and vector quarkonia, two-photon decays, and two-gluon decays of pseudoscalar quarkonia in our recent paper. With these input parameters so fixed, the radiative decay widths of ground (1S) and excited (2S,3S) states of heavy vector quarkonia (J/Ψ and Υ) are calculated and found to be in reasonable agreement with data.

On The Mass Spectrum of Elementary Particles

2021 ◽  
Vol 4 (1) ◽  
Keyword(s):  
Excited State ◽  
Mass Spectrum ◽  
Cosmic Rays ◽  
Excited States ◽  
Magnetic Moments ◽  
Elementary Particles ◽  
Fractional Charge

In the 50s of the last century, M.I. Danysh and J. Pniewski discovered the existence of hypernuclei. In them under the action of cosmic rays, one of nucleons was turned into an excited state. In this paper, it is shown that masses and magnetic moments of such excitations coincide with properties of some elementary particles. Based on this consent, a number of elementary particles should be considered as excited states of different combinations of electrons, positrons, and protons, rather than as composed from quarks with a fractional charge.

ChemInform Abstract: LOCALIZED EXCITATIONS AND THE GEOMETRY OF THE NΠ* EXCITED STATES OF PYRAZINE

1982 ◽  
Vol 13 (16) ◽  
Author(s):  
D. A. KLEIER ◽  
R. L. MARTIN ◽  
W. R. WADT ◽  
W. R. MOOMAW
Keyword(s):  
Excited States ◽  
Localized Excitations

SPECTROSCOPY OF LIGHT HADRONS ON ANISOTROPIC LATTICES

2006 ◽  
Vol 21 (26) ◽  
pp. 5253-5274
Author(s):  
FRANK X. LEE
Keyword(s):  
Mass Spectrum ◽  
Lattice Qcd ◽  
Excited States ◽  
Ground State ◽  
Quark Mass ◽  
Tree Level ◽  
Mass Dependence ◽  
Anisotropic Lattices ◽  
Quark Mass Dependence ◽  
The Masses

The mass spectrum of spin-1/2 baryons in both parity channels is computed using the methods of lattice QCD in the quenched approximation. An anisotropic action with anisotropy as/at = 3 is employed, using tree-level coefficients with tadpole improvement. Clear splittings from the nucleon ground state are observed with smeared operators and 500 configurations. Methods for extracting the first excited states are investigated. Using the quark mass dependence of the masses, qualitative comparisons are made with previous calculations and experiment.

scholarly journals Higher Order Perturbation Corrections of Rotating Excited States in the Standard SU(3) Skyrme Model to Baryon Mass Spectrum

1997 ◽  
Vol 12 (05) ◽  
pp. 873-890 ◽  
Author(s):  
Jin-Ping Li ◽  
Mu-Lin Yan ◽  
Rong-Hua Yu
Keyword(s):  
Experimental Data ◽  
Mass Spectrum ◽  
Excited States ◽  
Higher Order ◽  
Skyrme Model ◽  
Order Perturbation ◽  
Third Order ◽  
The Third ◽  
Baryon Mass ◽  
Higher Order Corrections

The higher order corrections of SU(3) rotating excited states to the Gell-Mann–Okubo Relations (or GOR) are presented in the standard SU(3) Skyrme model. The Improved GOR (or IGOR) are obtained. The results show the IGOR for decuplet up to the third order and for octet up to the second order are much compatible with the experimental data. But things become quite inadequate for the octet to the third order. In order to overcome the inadequacy, a heuristic discussion is presented. The properties of SU(3) rotating excited states 27-let (with spin [Formula: see text] or [Formula: see text]), 10*-let (with spin [Formula: see text]) and 35-let (with spin [Formula: see text]) are also discussed.

scholarly journals Radially excited axial-vector mesons in the extended Nambu–Jona-Lasinio model

2014 ◽  
Vol 29 (24) ◽  
pp. 1450125 ◽  
Author(s):  
A. V. Vishneva ◽  
M. K. Volkov
Keyword(s):  
Experimental Data ◽  
Excited State ◽  
Mass Spectrum ◽  
Excited States ◽  
Axial Vector ◽  
Form Factors ◽  
Radiative Decays ◽  
Vector Mesons ◽  
Polynomial Type ◽  
Quark Momentum

The first radial excitations of axial-vector mesons are considered in the framework of the extended U(3) × U(3) Nambu–Jona-Lasinio model. We calculate the mass spectrum of a1, f1 and also strange axial-vector mesons. For description of radially excited states, we used the form factors of polynomial type of the second order in transverse quark momentum. For the ground- and excited-state mesons consisting of light quarks we have calculated the widths of a number of strong and radiative decays. We got satisfactory agreement with experimental data for the ground states. A set of predictions for the excited states of mesons is given.

Sign in / Sign up

Export Citation Format

Share Document