China Center of Advanced Science and Technology

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19922026

most citedHeavy quarkonium: progress, puzzles, and opportunities

1.8k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2007Show all

44 papers · 1 filter

hep-ph2007★ 15 cited

Systematic Study on QCD Interactions of Heavy Mesons with $ρ$ Meson

Zuo-Hong Li, Wei Liu, Hai-Yan Liu

The strong interactions of the negative-parity heavy mesons with $ρ$ meson may be described consistently in the context of an effective lagrangian, which is invariant under isospin…

hep-ex2007★ 135 cited

Observation of Y(2175) in $J / ψ \to η ϕ f_{0} (980)$

BES Collaboration, M. Ablikim

The decays of $J / ψ \to η ϕ f_{0} (980) (η \to γ γ, ϕ \to K^{+} K^{-}, f_{0} (980) \to π^{+} π^{-})$ are analyzed using a sample of $5.8 \times 1 0^{7}$ $J / ψ$ events collected with the BESII detector at the…

hep-ph2007★ 103 cited

Melosh rotation: source of the proton's missing spin

Bo-Qiang Ma

It is shown that the observed small value of the integrated spin structure function for protons could be naturally understood within the naive quark model by considering the effect…

hep-ph2007★ 47 cited

Production of $B_{c}$ or $B ˉ_{c}$ meson and its excited states via $t ˉ$ -quark or $t$ -quark decays

Chao-Hsi Chang, Jian-Xiong Wang, Xing-Gang Wu

The production of $(b c ˉ)$ -quarkonium ( $B ˉ_{c}$ meson and its excited states) or $(c b ˉ)$ -quarkonium ( $B_{c}$ meson and its excited states) via top quark $t$ or top anti-q…

hep-ex2007★ 4 cited

Search for the decays $J / ψ \to γ ρϕ$ and $J / ψ \to γ ρ ω$

BES Collaboration

Using 58 million $J / ψ$ events collected with the Beijing Spectrometer (BESII) at the Beijing Electron-Positron Collider, the decays $J / ψ \to γ ϕρ$ and $J / ψ \to γ ω ρ$ are searched for,…

hep-ph2007★ 13 cited

The Friedberg-Lee model at finite temperature and density

Hong Mao, Minjie Yao, Wei-Qin Zhao

The Friedberg-Lee model is studied at finite temperature and density. By using the finite temperature field theory, the effective potential of the Friedberg-Lee model and the bag c…

hep-th2007★ 32 cited

Greybody Factors for Rotating Black Holes on Codimension-2 Branes

Songbai Chen, Bin Wang, Ru-Keng Su +1

We study the absorption probability and Hawking radiation of the scalar field in the rotating black holes on codimension-2 branes. We find that finite brane tension modifies the st…

hep-ph2007★ 178 cited

2+1 Flavor Polyakov--Nambu--Jona-Lasinio Model at Finite Temperature and Nonzero Chemical Potential

Wei-jie Fu, Zhao Zhang, Yu-xin Liu

We extend the Polyakov-loop improved Nambu--Jona-Lasinio (PNJL) model to 2+1 flavor case to study the chiral and deconfinement transitions of strongly interacting matter at finite…

hep-ex2007★ 11 cited

Experimental studies of the $π^{+} π^{-} π^{+} π^{-} π^{0}$ , $K^{+} K^{-} π^{+} π^{-} π^{0}$ and $p p ˉ π^{+} π^{-} π^{0}$ final states produced in $e^{+} e^{-}$ annihilation at $s =$ 3.773 and 3.650 GeV

The BES Collaboration

We report measurements of the observed cross sections for $e^{+} e^{-} \to ω π^{+} π^{-}$ , $ω K^{+} K^{-}$ , $ω p p ˉ$ , $K^{+} K^{-} ρ^{0} π^{0}$ , $K^{+} K^{-} ρ^{+} π^{-} + c . c .$ , $K^{* 0} K^{-} π^{+} π^{0} + c . c .$ , $K^{*+}K^-π^+π^-+c…

hep-ex2007★ 42 cited

Study of Jψdecaying into ωp \bar p

BES Collaboration

The decay $J / ψ \to ω p p ˉ$ is studied using a $5.8 \times 1 0^{7}$ $J / ψ$ event sample accumulated with the BES II detector at the Beijing electron-positron collider. The decay branc…

hep-th2007★ 43 cited

Hawking radiation in a Rotating Kaluza-Klein Black Hole with Squashed Horizons

Songbai Chen, Bin Wang, Ru-Keng Su

We explore the signature of the extra dimension in the Hawking radiation in a rotating Kaluza-Klein black hole with squashed horizons. Comparing with the spherical case, we find th…

nucl-th2007★ 11 cited

Theoretical analysis for the apparent discrepancy between pbarp and pp data in charged particle forward-backward multiplicity correlations

Yu-Liang Yan, Bao-Guo Dong, Dai-Mei Zhou +2

The strength of charged particle forward-backward multiplicity correlation in pbar+p and p+p collisions at s^1/2 = 200 GeV is studied by PYTHIA 6.4 and compared to the UA5 and STAR…

hep-ex2007★ 52 cited

Search for the Invisible Decay of $\jpsi$ in $ψ (2 S) \to π + π^{-} J / ψ$

M. Ablikim, J. Z. Bai

Using 14.0 million $ψ (2 S) e v e n t sco l l ec t e d w i t h t h e B E S - I I d e t ec t or, a se a r c h f or t h e d ec a y o f t h e$ \jpsi $t o anin v i s ib l e f ina l s t a t e in$ \psipto $i s p er f or m e d . T h e$ \jpsi$ peak i…

quant-ph2007★ 2 cited

Convergent Iterative Solutions of Schroedinger Equation for a Generalized Double Well Potential

R. Friedberg, T. D. Lee, W. Q. Zhao

We present an explicit convergent iterative solution for the lowest energy state of the Schroedinger equation with a generalized double well potential $V=\frac{g^2}{2}(x^2-1)^2(x^2…

hep-ph2007★ 17 cited

Jarlskog Invariant of the Neutrino Mapping Matrix

R. Friedberg, T. D. Lee

The Jarlskog Invariant $J_{ν - ma p}$ of the neutrino mapping matrix is calculated based on a phenomenological model which relates the smallness of light lepton masses $m_{e}$ and $m_{1}$ …

hep-ex2007★ 4 cited

Measurements of $J / ψ$ and $ψ (2 S)$ decays into $Λ Λ ˉ π^{0}$ and $Λ Λ ˉ η$

BES Collaboration, M. Ablikim

Using 58 million $J / ψ$ and 14 million $ψ (2 S)$ events collected by the BESII detector at the BEPC, branching fractions or upper limits for the decays $J / ψ$ and $ψ (2 S) \to Λ Λ ˉ π^{0}$ …

nucl-th2007★ 15 cited

Preliminary study of the anti-K N interaction in a chiral constituent quark model

F. Huang, W. L. Wang, Z. Y. Zhang +1

A preliminary investigation of the anti-K N interaction is performed within a chiral constituent quark model by solving the resonating group method (RGM) equation. The model parame…

quant-ph2007

Groundstate with Zero Eigenvalue for Generalized Sombrero-shaped Potential in $N$ -dimensional Space

Zhao Wei-Qin

Based on an iterative method for solving the goundstate of Schroedinger equation, it is found that a kind of generalized Sombrero-shaped potentials in N-dimensional space has groun…

nucl-th2007★ 67 cited

Evolution of the proton sd states in neutron-rich Ca isotopes

M. Grasso, Z. Y. Ma, E. Khan +2

We analyze the evolution with increasing isospin asymmetry of the proton single-particle states 2s1/2 and 1d3/2 in Ca isotopes, using non-relativistic and relativistic mean field a…

nucl-th2007★ 16 cited

Improved quark mass density- dependent model with quark-sigma meson and quark-omega meson couplings

Chen Wu, Wei-Liang Qian, Ru-Keng Su

An improved quark mass density- dependent model with the non-linear scalar sigma field and the $ω$ -meson field is presented. We show that the present model can describe saturation…

astro-ph2007★ 181 cited

Testing the viability of the interacting holographic dark energy model by using combined observational constraints

Chang Feng, Bin Wang, Yungui Gong +1

Using the data coming from the new 182 Gold type Ia supernova samples, the shift parameter of the Cosmic Microwave Background given by the three-year Wilkinson Microwave Anisotropy…

hep-ph2007★ 27 cited

Isospin violation in $ϕ, J / ψ, ψ^{'} \to ω π^{0}$ via hadronic loops

Gang Li, Qiang Zhao, Bing-Song Zou

In this work, we study the isospin-violating decay of $ϕ \to ω π^{0}$ and quantify the electromagnetic (EM) transitions and intermediate meson exchanges as two major sources of the dec…

hep-ph2007★ 28 cited

Hidden Symmetry of the CKM and Neutrino Mapping Matrices

R. Friedberg, T. D. Lee

We propose that the smallness of the light quark masses is related to the smallness of the T violation in hadronic weak interactions. Accordingly, for each of the two quark sectors…

hep-th2007

Faddeev-Senjanovic Quantization of Supersymmetrical Electrodynamical System

Yun-Guo Jiang, Yong-Chang Huang

According to the method of path integral quantization for the canonical constrained system in Faddeev-Senjanovic scheme, we quantize the supersymmetrical electrodynamic system in g…

Systematic Study on QCD Interactions of Heavy Mesons with ρ Meson

Observation of Y(2175) in J/ψ→ηϕf0​(980)