Light vector meson and heavy baryon strong interaction (2009)
Huang, Peng-Zhi, Chen, Hua-Xing, Zhu, Shi-Lin
We calculate the coupling constants between the light vector mesons and heavy baryons within the framework of the light-cone QCD sum rule in the leading order of heavy quark effective theory. Most...
The Possible J^{PC}=0^{--} Exotic State (2009)
Jiao, Chun-Kun, Chen, Wei, Chen, Hua-Xing, Zhu, Shi-Lin
In order to explore the possible existence of the exotic $0^{--}$ state, we have constructed the tetraquark interpolating operators systematically. As a byproduct, we notice the $0^{+-}$ tetraquark...
Scalar Tetraquark Currents With Application to the QCD Sum Rule (2008)
Chen, Hua-Xing, Hosaka, Atsushi, Zhu, Shi-Lin
We study the light scalar mesons in the QCD sum rule. We construct both the diquark-antidiquark currents $(qq)(\bar q \bar q)$ and the meson-meson currents $(\bar qq)(\bar qq)$. We find that there...
The I^G J^{PC}=0^+ 1^{-+} Tetraquark State (2008)
Chen, Hua-Xing, Hosaka, Atsushi, Zhu, Shi-Lin
We study the tetraquark state with I^G J^{PC} = 0^+ 1^{-+} in the QCD sum rule. We exhaust all possible flavor structures by using a diquark-antidiquark construction and find that the flavor...
Chiral Properties of Baryon Fields with Flavor SU(3) Symmetry (2008)
Chen, Hua-Xing, Dmitrasinovic, V., Hosaka, Atsushi, Nagata, Keitaro, Zhu, Shi-Lin
We investigate chiral properties of local (non-derivative) fields of baryons consisting of three quarks with flavor SU(3) symmetry. We construct explicitly independent local three-quark fields...
The I^G J^{PC}=1^- 1^{-+} Tetraquark States (2008)
Chen, Hua-Xing, Hosaka, Atsushi, Zhu, Shi-Lin
We study the tetraquark states with I^G J^{PC}=1^- 1^{-+} in the QCD sum rule. After exhausting all possible flavor structures, we analyses both the SVZ and finite energy sum rules. Both approaches...
The Y(2175) State in the QCD Sum Rule (2008)
Chen, Hua-Xing, Liu, Xiang, Hosaka, Atsushi, Zhu, Shi-Lin
We study the mass of the state Y(2175) of J^{PC} = 1^{--} in the QCD sum rule. We construct both the diquark-antidiquark currents (ss)(s_bar s_bar) and the meson-meson currents (s_bar s)(s_bar s). We...
Light Scalar Mesons in the QCD Sum Rule (2007)
Chen, Hua-Xing, Hosaka, Atsushi, Zhu, Shi-Lin
We study the light scalar mesons in the QCD sum rule. We find that there are five independent scalar tetraquark currents in the local form, and we perform QCD sum rule analysis using both these...
Liu, Xiang, Chen, Hua-Xing, Liu, Yan-Rui, Hosaka, Atsushi, Zhu, Shi-Lin
Recently CDF and D0 collaborations observed several bottom baryons. In this work we perform a systematic study of the masses of bottom baryons up to $1/m_Q$ in the framework of heavy quark effective...
Light Scalar Tetraquark Mesons in the QCD Sum Rule (2007)
Chen, Hua-Xing, Hosaka, Atsushi, Zhu, Shi-Lin
We study the lowest-lying scalar mesons in the QCD sum rule by considering them as tetraquark states. We find that there are five independent currents for each state with a certain flavor structure....
QCD Sum Rule Study of the Masses of Light Tetraquark Scalar Mesons (2006)
Chen, Hua-Xing, Hosaka, Atsushi, Zhu, Shi-Lin
We study the low-lying scalar mesons of light u, d, s flavors in the QCD sum rule. Having all possible combinations of tetraquark currents in the local form, QCD sum rule analysis has been carefully...
Isospin symmetry breaking of K and K* mesons (2006)
Chen, Hua-Xing, Hosaka, Atsushi, Zhu, Shi-Lin
We use the method of QCD sum rules to investigate the isospin symmetry breaking of K and K* mesons. The electromagnetic effect, difference between up and down current-quark masses and difference...
Exotic Tetraquark ud bar[s] bar[s] of J^P=0^+ in the QCD Sum Rule (2006)
Chen, Hua-Xing, Hosaka, Atsushi, Zhu, Shi-Lin
We study a QCD sum rule analysis for an exotic tetraquark ud bar[s] bar[s] of J^P=0^+ and I = 1. We construct q q bar[q] bar[q] currents in a local product form and find that there are five...