scholarly journals Hadronic annihilation decay rates ofP-wave heavy quarkonia with relativistic corrections

1997 ◽  
Vol 56 (9) ◽  
pp. 5816-5819 ◽  
Author(s):  
Han-Wen Huang ◽  
Hai-Ming Hu ◽  
Xiao-Fei Zhang
Keyword(s):  
Decay Rates ◽  
Heavy Quarkonia ◽  
Relativistic Corrections

scholarly journals Annihilation rates of 3D2(2−−) and 3D3(3−−) heavy quarkonia

2017 ◽  
Vol 32 (06n07) ◽  
pp. 1750035 ◽  
Author(s):  
Tianhong Wang ◽  
Hui-Feng Fu ◽  
Yue Jiang ◽  
Qiang Li ◽  
Guo-Li Wang
Keyword(s):  
Excited States ◽  
Mass Spectra ◽  
Decay Rates ◽  
Wave Functions ◽  
Heavy Quarkonia ◽  
Relativistic Corrections ◽  
Quantum Numbers

We calculate the annihilation decay rates of the [Formula: see text] and [Formula: see text] charmonia and bottomonia by using the instantaneous Bethe–Salpeter (BS) method. The wave functions of states with quantum numbers [Formula: see text] and [Formula: see text] are constructed. By solving the corresponding instantaneous BS equations, we obtain the mass spectra and wave functions of the quarkonia. The annihilation amplitude is written within Mandelstam formalism and the relativistic corrections are taken into account properly. This is important, especially for high excited states, since their relativistic corrections are large. The results for the [Formula: see text] channel are as follows: [Formula: see text] keV, [Formula: see text] keV, [Formula: see text] keV and [Formula: see text] keV.

scholarly journals TWO-PHOTON DECAY RATES OF HEAVY QUARKONIA IN THE RELATIVISTIC QUARK MODEL

2003 ◽  
Vol 18 (09) ◽  
pp. 601-607 ◽  
Author(s):  
D. EBERT ◽  
R. N. FAUSTOV ◽  
V. O. GALKIN
Keyword(s):  
Experimental Data ◽  
Quark Model ◽  
Relativistic Effects ◽  
Decay Rates ◽  
Heavy Quarkonia ◽  
Radiative Corrections ◽  
Relativistic Quark Model ◽  
Two Photon ◽  
Photon Decay ◽  
Theoretical Predictions

Two-photon decay rates of pseudoscalar, scalar and tensor states of charmonium and bottomonium are calculated in the framework of the relativistic quark model. Both relativistic effects and one-loop radiative corrections are taken into account. The obtained results are compared with other theoretical predictions and available experimental data.

scholarly journals Hyperfine Splitting and Leptonic Decay Rates in Heavy Quarkonia

2003 ◽  
Vol 18 (23) ◽  
pp. 1597-1600 ◽  
Author(s):  
D. Ebert ◽  
R. N. Faustov ◽  
V. O. Galkin
Keyword(s):  
Experimental Data ◽  
Hyperfine Splitting ◽  
Belle Collaboration ◽  
Leptonic Decay ◽  
Decay Rates ◽  
Heavy Quarkonia ◽  
Radiative Corrections

The hyperfine splitting in heavy quarkonia is considered in its relation to the leptonic decay rates with the account of relativistic and radiative corrections. The calculated decay rates agree well with the available experimental data, while the predicted ηc(2S) mass is significantly smaller than the value measured recently by the Belle collaboration.

scholarly journals Relativistic two-photon and two-gluon decay rates of heavy quarkonia

1996 ◽  
Vol 54 (3) ◽  
pp. 2075-2080 ◽  
Author(s):  
Suraj N. Gupta ◽  
James M. Johnson ◽  
Wayne W. Repko
Keyword(s):  
Decay Rates ◽  
Heavy Quarkonia ◽  
Two Photon

THE STRATEGIC 1P1 STATES OF HEAVY QUARKONIA

1992 ◽  
Vol 07 (38) ◽  
pp. 3527-3539 ◽  
Author(s):  
S.F. TUAN
Keyword(s):  
Mass Spectrum ◽  
Preliminary Data ◽  
Mass Spectra ◽  
Branching Ratio ◽  
Current Situation ◽  
Decay Rates ◽  
Heavy Quarkonia ◽  
Straightforward Manner ◽  
Crystal Ball ◽  
The Status

In this brief review, we examine carefully and critically the status of search for (i) the ψ(11P1) charmonium state and (ii) the ϒ(11P1) state of bottonium. We wish to emphasize in particular that the strategic debate between Kuang-Yan and Voloshin concerning the size of the branching ratio for the transition ϒ(3S)→ϒ(11P1)ππ and the reality of the ISR events for the existence of ψ(11P1) in charmonium can be resolved in a more straightforward manner by (iii) measuring the decay rates ϒ(1D, 2D)→ϒππ and ψ(3770)→J/ψππ together with the amount of S-D mixing in the ψ′(3684)−ψ″(3770) system. Preliminary data are already available from Crystal Ball, Mark II and Mark III experiments concerning ψ″(3770)→J/ψππ rate supportive of Kuang-Yan. We also discuss the current situation in ϒ(3S)→ϒ(1S, 2S)ππ dipion mass spectra, in the context of the expected mass spectrum for ϒ(3S)→ϒ(11P1)ππ.

scholarly journals Decay rates and electromagnetic transitions of heavy quarkonia

2015 ◽  
Vol 39 (12) ◽  
pp. 123101 ◽  
Author(s):  
J. N. Pandya ◽  
N. R. Soni ◽  
N. Devlani ◽  
A. K. Rai
Keyword(s):  
Decay Rates ◽  
Heavy Quarkonia ◽  
Electromagnetic Transitions

The confining interaction and the M1 decay rates of heavy quarkonia

2000 ◽  
Vol 663-664 ◽  
pp. 663c-666c ◽  
Author(s):  
D.O. Riska ◽  
T.A. Lähde ◽  
C.J. Nyfält
Keyword(s):  
Decay Rates ◽  
Heavy Quarkonia
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