On $$\bar pp$$ decay widths of heavy-quarkonium statedecay widths of heavy-quarkonium state

1994 ◽  
Vol 107 (11) ◽  
pp. 2477-2482
Author(s):  
P. Volkovitsky
Keyword(s):  
Heavy Quarkonium ◽  
Decay Widths ◽  
Quarkonium State

scholarly journals S-Wave Heavy Quarkonium Spectra: Mass, Decays, and Transitions

2018 ◽  
Vol 2018 ◽  
pp. 1-12
Author(s):  
Halil Mutuk
Keyword(s):  
Logarithmic Potential ◽  
Heavy Quarkonium ◽  
Theoretical Studies ◽  
S Wave ◽  
Potential Models ◽  
Decay Constants ◽  
Two Photon ◽  
Regge Trajectories ◽  
Decay Widths ◽  
Hyperfine Splittings

In this paper we revisited phenomenological potentials. We studied S-wave heavy quarkonium spectra by two potential models. The first one is power potential and the second one is logarithmic potential. We calculated spin averaged masses, hyperfine splittings, Regge trajectories of pseudoscalar and vector mesons, decay constants, leptonic decay widths, two-photon and two-gluon decay widths, and some allowed M1 transitions. We studied ground and 4 radially excited S-wave charmonium and bottomonium states via solving nonrelativistic Schrödinger equation. Although the potentials which were studied in this paper are not directly QCD motivated potential, obtained results agree well with experimental data and other theoretical studies.

On decay widths of heavy quarkonium states

1993 ◽  
Vol 308 (1-2) ◽  
pp. 100-104 ◽  
Author(s):  
P. Volkovitsky
Keyword(s):  
Heavy Quarkonium ◽  
Decay Widths

scholarly journals ANALYSIS OF THE RADIATIVE DECAYS AMONG THE BOTTOMONIUM STATES

2012 ◽  
Vol 27 (34) ◽  
pp. 1250197 ◽  
Author(s):  
ZHI-GANG WANG
Keyword(s):  
Experimental Data ◽  
Systematic Study ◽  
Radiative Decay ◽  
Radiative Decays ◽  
Heavy Quarkonium ◽  
Radiative Transitions ◽  
Decay Widths ◽  
The Future

In this paper, we perform an systematic study of the radiative transitions among the bottomonium states using the heavy quarkonium effective Lagrangians, and make predictions for the ratios among the radiative decay widths of a special multiplet to another multiplet. The predictions can be confronted with the experimental data in the future.

Heavy-quarkonium spectroscopy and leptonic decay widths

1996 ◽  
Vol 109 (5) ◽  
pp. 569-574
Author(s):  
C. Itoh ◽  
T. Minamikawa ◽  
K. Miura ◽  
T. Watanabe
Keyword(s):  
Leptonic Decay ◽  
Heavy Quarkonium ◽  
Decay Widths

scholarly journals HEAVY QUARKONIUM IN THE DUAL GINZBURG–LANDAU THEORY OF QCD

1996 ◽  
Vol 11 (15) ◽  
pp. 2677-2688 ◽  
Author(s):  
KATSUHIKO SUZUKI ◽  
HIROSHI TOKI
Keyword(s):  
Gluon Propagator ◽  
Landau Theory ◽  
Light Quark ◽  
Pair Creation ◽  
Leptonic Decay ◽  
Heavy Quarkonium ◽  
Ginzburg Landau ◽  
Color Confinement ◽  
Decay Widths ◽  
The Masses

We study the masses and leptonic decay widths of the heavy quarkonium in the dual Ginzburg–Landau (DGL) theory of QCD, in which the Abelian monopole condensation plays an essential role for color confinement. The effect of color screening due to the light quark pair creation is introduced by the infrared momentum cutoff in the gluon propagator. We find that the color screening effect is important for reproducing the properties of the heavy quarkonium, in particular the leptonic decay width. We also discuss the underlying systematics of the heavy quark spectroscopy in the DGL theory.

scholarly journals Lowering the scale of Pati-Salam breaking through seesaw mixing

2021 ◽  
Vol 2021 (5) ◽  
Author(s):  
Matthew J. Dolan ◽  
Tomasz P. Dutka ◽  
Raymond R. Volkas
Keyword(s):  
Degrees Of Freedom ◽  
Tree Level ◽  
Charged Current ◽  
Meson Decay ◽  
Neutrino Masses ◽  
Down Quark ◽  
The Standard Model ◽  
Decay Widths ◽  
Left And Right ◽  
Charged Leptons

Abstract We analyse the experimental limits on the breaking scale of Pati-Salam extensions of the Standard Model. These arise from the experimental limits on rare-meson decay processes mediated at tree-level by the vector leptoquark in the model. This leptoquark ordinarily couples to both left- and right-handed SM fermions and therefore the meson decays do not experience a helicity suppression. We find that the current limits vary from $$ \mathcal{O} $$ O (80–2500) TeV depending on the choice of matrix structure appearing in the relevant three-generational charged-current interactions. We extensively analyse scenarios where additional fermionic degrees of freedom are introduced, transforming as complete Pati-Salam multiplets. These can lower the scales of Pati-Salam breaking through mass-mixing within the charged-lepton and down-quark sectors, leading to a helicity suppression of the meson decay widths which constrain Pati-Salam breaking. We find four multiplets with varying degrees of viability for this purpose: an SU(2)L/R bidoublet, a pair of SU(4) decuplets and either an SU(2)L or SU(2)R triplet all of which contain heavy exotic versions of the SM charged leptons. We find that the Pati-Salam limits can be as low as $$ \mathcal{O} $$ O (5–150) TeV with the addition of these four multiplets. We also identify an interesting possible connection between the smallness of the neutrino masses and a helicity suppression of the Pati-Salam limits for three of the four multiplets.

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