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Light Scalar Mesons from Phi to Psi [PDF]

, 2006
The following topics are considered. 1) Confinement, chiral dynamics, and light scalar mesons. 2) Chiral shielding of the $\sigma(600)$. 3) The $\phi$ meson radiative decays about nature of light scalar resonances.
A.V. Kiselev +18 more
core +1 more source

Study a0(980)-f0(980) mixing from a0(980) -> f0(980) transition

, 2008
Various processes have been proposed previously to study a0(980)-f0(980) mixing through f0(980)->a0(980) transition. Here we investigate in detail the difference between a0(980)->f0(980) and f0(980)->a0(980) transitions. It is found that the a0(980)->f0(980) transition can provide additional constrains to the parameters of a0(980) and f0 ...
Wu, Jia-Jun, Zou, B. S.
openaire +2 more sources

Excited scalar mesons in a chiral quark model [PDF]

, 1999
First radial excitations of the isoscalar and isovector scalar mesons f_0(400-1200), f_0(980) and a_0(980) are investigated in the framework of a nonlocal version of a chiral quark model of the Nambu--Jona-Lasinio type.
Anisovich V. V. +6 more
core +2 more sources

Study the CP violation of the quasi-two-body decays of B meson with the a00(980) and f0(980) mixing

Nuclear Physics B, 2023
In the framework of the QCD factorization approach, we study the localized CP violations of the B−→K−π+π−, B−→π−π+π−, B−→K−K+K−, B−→π−K+K−, B−→K−π0η and B−→π−π0η decays with and without the a00(980)−f0(980) mixing mechanism, respectively, and find that ...
Jing-Juan Qi, Zhen-Yang Wang, Xin-Heng Guo +2 more
doaj +1 more source

f0(980) production in inelastic pp collisions at s = 5.02 TeV

Physics Letters B, 2023
The measurement of the production of f0(980) in inelastic pp collisions at s=5.02 TeV is presented. This is the first reported measurement of inclusive f0(980) yield at LHC energies. The production is measured at midrapidity, |y|
S. Acharya +1042 more
doaj +1 more source

First measurement of direct $f_0(980)$ photoproduction on the proton [PDF]

, 2008
We report on the results of the first measurement of exclusive $f_0(980)$ meson photoproduction on protons for $E_\gamma=3.0 - 3.8$ GeV and $-t = 0.4-1.0$ GeV$^2$.
Adhikari, K.P. +247 more
core +4 more sources

New information on the strong isospin symmetry breaking in the reactions of the a00(980) and f0(980) resonance production [PDF]

EPJ Web of Conferences, 2019
We discuss the isotopic symmetry breaking as a tool of studying the production mechanisms and nature of light scalar mesons. The anomalous isospin breaking effects can appear not only due to the a00(980)−f0(980)$ a_0^0(980) - {f_0}(980) $ mixing, but ...
Achasov N.N., Shestakov G.N.
doaj +1 more source

On the scalar nonet in the extended Nambu Jona-Lasinio model [PDF]

, 2007
We discuss the lightest scalar resonances, $f_0(600)$, $\kappa(800)$, $a_0(980)$ and $f_0(980)$ in the extended Nambu Jona-Lasinio model. We find that the model parameters can be tuned, but unnaturally, to accommodate for those scalars except the $f_0 ...
Su, Ming-Xian, Xiao, L. Y., Zheng, H. Q.
core +1 more source

Constraint on K Kbar compositeness of the a0(980) and f0(980) resonances from their mixing intensity

, 2015
Structure of the $a_{0}(980)$ and $f_{0}(980)$ resonances is investigated with the $a_{0}(980)$-$f_{0}(980)$ mixing intensity from the viewpoint of compositeness, which corresponds to the amount of two-body states composing resonances as well as bound ...
Kumano, S., Sekihara, T.
core +1 more source

The scalar $$f_0(500)$$ f 0 ( 500 ) , $$f_0(980)$$ f 0 ( 980 ) , and $$a_0(980)$$ a 0 ( 980 ) resonances and vector mesons in the single Cabibbo-suppressed decays $$\Lambda _c \rightarrow p K^+K^-$$ Λ c → p K + K - and $$p\pi ^+\pi ^-$$ p π + π -

European Physical Journal C: Particles and Fields, 2020
In the chiral unitary approach, we have studied the single Cabibbo-suppressed decays $$\Lambda _c\rightarrow pK^+K^-$$ Λ c → p K + K - and $$\Lambda _c \rightarrow p \pi ^+\pi ^-$$ Λ c → p π + π - by taking into account the s-wave meson–meson interaction
Zhe Wang +4 more
doaj +1 more source

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