336 citations · 5.5k across the 184 of their papers we have counts for
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Bottom Baryons
Xiang Liu, Hua-Xing Chen, Yan-Rui Liu +2
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 in the framework of hea…
Light Scalar Mesons in the QCD Sum Rule
Hua-Xing Chen, Atsushi Hosaka, Shi-Lin Zhu
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 usi…
Magnetic interaction induced by the anomaly in kaon-photoproductions
S. Ozaki, H. Nagahiro, A. Hosaka
We study the role of magnetic interaction in the photoproduction of the kaon and hyperon. We find that the inclusion of a higher order diagram induced by the Wess-Zumio-Witten term…
A new nucleon resonance in eta photoproduction
Ki-Seok Choi, Seung-il Nam, Atsushi Hosaka +1
We present in this talk recent investigations on the nucleon-like resonance N*(1675) newly found in eta photoproduction by the GRAAL, Tohoku LNS-gamma and CB-ELSA collaborations. W…
Structure of the Roper Resonance with Diquark Correlations
Keitaro Nagata, Atsushi Hosaka
We study electromagnetic properties of the nucleon and Roper resonance in a chiral quark-diquark model including two kinds of diquarks needed to describe the nucleon: scalar and ax…
Light Scalar Tetraquark Mesons in the QCD Sum Rule
Hua-Xing Chen, Atsushi Hosaka, Shi-Lin Zhu
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…