Mechanisms for ${\chi }_{cJ}\to \varphi \varphi$ Decays

Abstract

Exclusive decays of ${\chi }_{cJ}(J=0,2)$ into $\varphi \varphi$ are investigated in the framework of perturbative quantum chromodynamics(pQCD) and $\tpz$ quark pair creation model. The results show that these two mechanisms exhibit a quite different behavior in evaluating the decay width for the ${\chi }_{c0}$ and ${\chi }_{c2}$. In pQCD method with nonrelativistic(NR) approximation, while the calculated $\cxpp{2}$ decay width is comparable with measured one, the result for the $\cxpp{0}$ decay width is suppressed and much smaller than experimental value. However, in $\tpz$ quark pair creation model, the situation is reversed: the decay width of $\cxpp{0}$ is greatly enhanced and can reproduce the large measured value, while the contribution to the $\cxpp{2}$ decay width is small. The results suggest that while the pQCD mechanism is the dominant mechanism for $\cxpp{2}$ decay, the $\tpz$ quark pair creation mechanism is the dominant one for $\cxpp{0}$ decay.

10 pages, 2 figures

References in corpus (9)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• On the Mechanism of Open-Flavor Strong Decays
• Strange Decays of Nonstrange Baryons
• Colour Octet Contribution in Exclusive P-Wave Charmonium Decay into Octet and Decuplet Baryons
• Finite size vertex corrections to the three-gluon decay widths of $J/\psi$ and ${\rm Y}$ and a redetermination of ${\alpha }_s(\mu )$ at $\mu =m_c$ and $m_b$
• Observation of $K^{\ast }(892{)}^0{\bar{K}}^{\ast }(892{)}^0$ in ${\chi }_{cJ}$ Decays
• ${\chi }_{c2}\to \rho \rho$ Decay and the $\rho$ Polarization in Inclusive Processes: A Test of Mass Effects
• Narrow width of a glueball decay into two mesons
• CP Test in J/Psi -> gamma phi phi Decay

Cited by in corpus (48)

• Strong decays of charmed baryons
• $D_{sJ}(2860)$ and $D_{sJ}(2715)$
• Y(2175): Distinguish Hybrid State from Higher Quarkonium
• B_{s1}(5830) and B_{s2}^*(5840)
• Newly observed D_{sJ}(3040) and the radial excitations of P-wave charmed-strange mesons
• Categorizing resonances X(1835), X(2120) and X(2370) in the pseudoscalar meson family
• A systematic study of mass spectra and strong decay of strange mesons
• The mass spectrum and strong decays of isoscalar tensor mesons
• Light axial vector mesons
• $X(1835)$ and $\eta (1760)$ observed by the BES Collaboration
• Towards two-body strong decay behavior of higher $\rho$ and ${\rho }_3$ mesons
• Excited states of $\varphi$ meson
• Canonical interpretation of the ${\eta }_2(1870)$
• Observation potential for χ_b at the Tevatron and LHC
• Systematic analysis of the $D_J(2580)$, $D_J^{\ast }(2650)$, $D_J(2740)$, $D_J^{\ast }(2760)$, $D_J(3000)$ and $D_J^{\ast }(3000)$ in $D$ meson family
• Observation of ${\chi }_{c1}$ decays into vector meson pairs $\varphi \varphi$, $\omega \omega$, and $\omega \varphi$
• Productions of X(1835) as baryonium with sizable gluon content
• A coherent study of ${\chi }_{c0,2}\to VV$, $PP$ and $SS$
• The $\eta (2225)$ observed by the BES Collaboration
• Pseudotensor meson family
• Towards the assignment for the $4^1{S}_0$ meson nonet
• Relativistic theory of string breaking in QCD
• Strong decays of the $X(2500)$ newly observed by the BESIII Collaboration
• Prediction for $5^{++}$ mesons
• On the nature of the $π_2(1880)
• A study of the Okubo-Zweig-Iizuka rule violations in ${\eta }_c\to VV$
• χ_{c0,2} decay into light meson pairs and its implication of the scalar meson structures
• Dipion decays of heavy baryons
• Exploring open-charm decay mode ${\Lambda }_c{\bar{\Lambda }}_c$ of charmonium-like state $Y(4630)$
• Study of the $\omega$ meson family and newly observed $\omega$-like state $X(2240)$
• Study on production of exotic $0^{+}$ meson $D_{sJ}^{\ast }(2317)$ in decays of $\psi (4415)$
• Strong decay properties of single heavy baryons ${\Lambda }_Q$, ${\Sigma }_Q$ and ${\Omega }_Q$
• A note on Ξ_c(3055)^+ and Ξ_c(3123)^+
• The analysis of the excited bottom and bottom strange states $B_1(5721)$, $B_2^{\ast }(5747)$, $B_{s1}(5830)$, $B_{s2}^{\ast }(5840)$, $B_J(5840)$ and $B_J(5970)$ in B meson family
• Analysis of the charmed mesons $D_1^{\ast }(2680)$, $D_3^{\ast }(2760)$ and $D_2^{\ast }(3000)$
• Obervation of χ_{cJ}--> omega omega decays
• Detecting the polarization in ${\chi }_{cJ}\to \varphi \varphi$ decays to probe hadronic loop effect
• Analysis of the $X(3842)$ as a D-wave charmonium meson
• Measurement of χ_cJ--> K+K-K+K-
• Hadronic decays of the (pseudo-)scalar charmonium states ${\eta }_c$ and ${\chi }_{c0}$ in the extended Linear Sigma Model
• Observation of OZI suppressed decays ${\chi }_{cJ}\to \omega \varphi$
• Study of the $\omega$/${\omega }_3$, $\rho$/${\rho }_3$ and the newly observed $\omega$-like state $X(2220)$
• Arrangement for $K_2^{\ast }$ meson family
• The new states $X(1910)$ and $X(2300)$ and higher light excited $J^{PC}=1^{+-}$ mesons
• Simple relativistic quark models
• Probing scalar meson structures in ${\chi }_{c1}$ decays into pseudoscalar and scalar
• Newly observed $\kappa$(2600) and the highly excited states of the $K_0^{\ast }$ family
• Study the decays of ${\chi }_{cJ}(J=0,1,2)$ to light meson pairs with SU(3) flavor symmetry/breaking analysis