513 citations · 3k across the 139 of their papers we have counts for
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Chiral effective theory of diquarks and the U_A(1) anomaly
Masayasu Harada, Yan-Rui Liu, Makoto Oka +1
The diquark is a strongly correlated quark pair that plays an important role in hadrons and hadronic matter. In order to treat the diquak as a building block of hadrons, we formula…
Inverse Mass Hierarchy of Light Scalar Mesons Driven by Anomaly-Induced Flavor Breaking
Yoshiki Kuroda, Masayasu Harada, Shinya Matsuzaki +1
We propose a novel mechanism to reproduce the observed mass hierarchy for the scalar mesons lighter than 1 GeV (called the inverse hierarchy) regarding them as mesons made of a qua…
Heavy quark spin multiplet structure of , , and
Yuki Shimizu, Yasuhiro Yamaguchi, Masayasu Harada
Very recently, the LHCb collaboration has reported the new result about the hidden-charm pentaquarks: near the threshold, and and n…
Single heavy baryons with chiral partner structure in a three-flavor chiral model
Yohei Kawakami, Masayasu Harada
We construct an effective hadronic model including single heavy baryons (SHBs) belonging to the representation under $\mbox{SU}(3)_L \times \mbox{SU}(3)_R…
Heavy quark spin multiplet structure of -like pentaquark as P-wave hadronic molecular state
Yuki Shimizu, Yasuhiro Yamaguchi, Masayasu Harada
We study the heavy quark spin (HQS) multiplet structure of P-wave -type pentaquarks treated as molecules of a heavy meson and a heavy baryon. We define the light-cloud…
Constraint to chiral invariant masses of nucleons from GW170817 in an extended parity doublet model
Takahiro Yamazaki, Masayasu Harada
We construct nuclear matter based on an extended parity doublet model including four light nucleons , , , and . We exclude some values of the chi…