scholarly journals Insight into scalar mesons from their radiative decays

2006 ◽  
Vol 73 (4) ◽  
Author(s):  
Yu. Kalashnikova ◽  
A. Kudryavtsev ◽  
A. V. Nefediev ◽  
J. Haidenbauer ◽  
C. Hanhart
Keyword(s):  
Radiative Decays ◽  
Scalar Mesons ◽  
Insight Into

scholarly journals Radiative decays of scalar mesons σ(600), f 0(980) and a 0(980) in the local Nambu-Jona-Lasinio model

Open Physics ◽  
2010 ◽  
Vol 8 (4) ◽  
Author(s):  
Mikhail Volkov ◽  
Eduard Kuraev ◽  
Yury Bystritskiy
Keyword(s):  
Experimental Data ◽  
Dominant Role ◽  
Radiative Decays ◽  
Loop Contribution ◽  
Hartree Fock ◽  
Scalar Mesons ◽  
Two Photon ◽  
Photon Decay ◽  
Decay Widths ◽  
Order Of Magnitude

AbstractThe two-photon decay widths of scalar mesons σ(600), f 0(980) and a 0(980) as well a 0 → ju(ω)γ and f 0 → ju(ω)γ are calculated in the framework of the local Nambu-Jona-Lasinio model. The contributions of the quark loops (Hartree-Fock approximation) and the meson loops (next 1/N c-approximation where N c is the number of colors) are taken into account. The values of these contributions, as we show, are of the same order of magnitude. For the f 0 decay the K-loop contribution plays the dominant role. The results for two-gamma decays are in satisfactory agreement with modern experimental data. The predictions for a 0 → ju(ω)γ and f 0 → ju(ω)γ widths are given.

scholarly journals Insight into the scalar mesons from a lattice calculation

2000 ◽  
Vol 578 (1-2) ◽  
pp. 367-382 ◽  
Author(s):  
Mark Alford ◽  
R.L. Jaffe
Keyword(s):  
Lattice Calculation ◽  
Scalar Mesons ◽  
Insight Into

X(3872) DIAGNOSTICS WITH DECAYS TO $D{\bar D}\gamma$

2006 ◽  
Vol 21 (06) ◽  
pp. 1239-1250 ◽  
Author(s):  
M. B. VOLOSHIN
Keyword(s):  
Short Distance ◽  
D Mesons ◽  
Radiative Decays ◽  
Molecular Component ◽  
Internal Dynamics ◽  
Final State ◽  
Insight Into

It is pointed out that in the decays [Formula: see text] the possible "molecular" component of the X(3872) should give rise essentially only to a [Formula: see text] final state with a predictable spectrum, and should yield virtually no contribution to decays into D+D-γ. The latter final state with charged D mesons should however arise from the radiative decays of the short-distance core of the X(3872) through the transition X(3872) → ψ(3770)γ. Thus an observation of the radiative decays of X(3872) to pairs of neutral and charged D mesons would provide an insight into the internal dynamics of the X(3872) resonance.

scholarly journals RADIATIVE DECAYS INVOLVING LIGHT SCALAR MESONS

2003 ◽  
Author(s):  
DEIRDRE BLACK ◽  
MASAYASU HARADA ◽  
JOSEPH SCHECHTER
Keyword(s):  
Radiative Decays ◽  
Scalar Mesons ◽  
Light Scalar

Scalar mesons and rare radiative decays of the φ meson

1997 ◽  
Vol 623 (1-2) ◽  
pp. 142-150 ◽  
Author(s):  
Alex R. Dzierba
Keyword(s):  
Radiative Decays ◽  
Scalar Mesons
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