74 citations · 794 across the 43 of their papers we have counts for
28 papers · 1 filter
Strong decays of singly heavy baryons from a chiral effective theory of diquarks
Yonghee Kim, Makoto Oka, Daiki Suenaga +1
A chiral effective theory of scalar and vector diquarks is formulated, which is based on chiral symmetry and includes interactions between scalar and vector…
Dirac Kondo effect under magnetic catalysis
Koichi Hattori, Daiki Suenaga, Kei Suzuki +1
We develop a mean-field theory of a novel Kondo effect emerging in systems without a Fermi surface, which instead emerges under strong magnetic fields. We determine the magnitude o…
Doubly heavy tetraquarks in a chiral-diquark picture
Yonghee Kim, Makoto Oka, Kei Suzuki
Energy spectrum of doubly heavy tetraquarks, ( with and ), is studied in the potential chiral-diquark model. Using the chiral e…
Heavy-quark spin polarization induced by the Kondo effect in a magnetic field
Daiki Suenaga, Yasufumi Araki, Kei Suzuki +1
We propose a new mechanism of the heavy-quark spin polarization (HQSP) in quark matter induced by the Kondo effect under external magnetic field. The Kondo effect is caused by a co…
Heavy baryon spectrum with chiral multiplets of scalar and vector diquarks
Yonghee Kim, Yan-Rui Liu, Makoto Oka +1
Chiral effective theory of scalar and vector diquarks is formulated according to the linear sigma model. The main application is to describe the ground and excited states of singly…
A review of quarkonia under strong magnetic fields
Sachio Iwasaki, Makoto Oka, Kei Suzuki
We review the properties of quarkonia under strong magnetic fields. The main phenomena are (i) mixing between different spin eigenstates, (ii) quark Landau levels and deformation o…
Survival probabilities of charmonia as a clue to measure transient magnetic fields
Sachio Iwasaki, Daisuke Jido, Makoto Oka +1
We investigate time evolution of -wave charmonium populations under a time-dependent homogeneous magnetic field and evaluate survival probabilities of the low-lying charmonia to…
Chiral separation effect catalyzed by heavy impurities
Daiki Suenaga, Yasufumi Araki, Kei Suzuki +1
We investigate the influence of Kondo effect, namely, the nonperturbative effect induced by heavy impurities, on the chiral separation effect (CSE) in quark matter. We employ a sim…
Suppression of decay widths in singly heavy baryons induced by the anomaly
Yohei Kawakami, Masayasu Harada, Makoto Oka +1
We study strong and radiative decays of excited singly heavy baryons (SHBs) using an effective chiral Lagrangian based on the diquark picture proposed in Ref. [1]. The effective La…
Two relativistic Kondo effects: Classification with particle and antiparticle impurities
Yasufumi Araki, Daiki Suenaga, Kei Suzuki +1
We investigate two different types of relativistic Kondo effects, distinguished by heavy-impurity degrees of freedom, by focusing on the energy-momentum dispersion relations of the…
Spectrum of singly heavy baryons from a chiral effective theory of diquarks
Yonghee Kim, Emiko Hiyama, Makoto Oka +1
The mass spectra of singly charmed and bottom baryons, and , are investigated using a nonrelativistic potential model with a heavy…
Kondo effect driven by chirality imbalance
Daiki Suenaga, Kei Suzuki, Yasufumi Araki +1
We propose a novel mechanism of the Kondo effect driven by a chirality imbalance (or chiral chemical potential) of relativistic light fermions. This effect is realized by the mixin…
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…
mesons as a probe of Casimir effect for chiral symmetry breaking
Tsutomu Ishikawa, Katsumasa Nakayama, Daiki Suenaga +1
We propose mesons as probes to investigate finite-volume effects for chiral symmetry breaking at zero and finite temperature. By using the -flavor linear-sigma model with…
Casimir effect for nucleon parity doublets
Tsutomu Ishikawa, Katsumasa Nakayama, Kei Suzuki
Finite-volume effects for the nucleon chiral partners are studied within the framework of the parity-doublet model. Our model includes the vacuum energy shift for nucleons, which i…
Quarkonium radiative decays from the hadronic Paschen-Back effect
Sachio Iwasaki, Kei Suzuki
We study the radiative (E1 and M1) decays of P-wave quarkonia in a strong magnetic field based on the Lagrangian of potential nonrelativistic QCD. To investigate their properties,…
Hadronic Paschen-Back effect
Sachio Iwasaki, Makoto Oka, Kei Suzuki +1
We find a novel phenomenon induced by the interplay between a strong magnetic field and finite orbital angular momenta in hadronic systems, which is analogous to the Paschen-Back e…
Interplay between chiral symmetry breaking and the QCD Kondo effect
Kei Suzuki, Shigehiro Yasui, Kazunori Itakura
We investigate the interplay between the (light-light quark) chiral condensate and heavy-light quark condensate induced by the QCD Kondo effect, which is described by an effective…
Topology and stability of the Kondo phase in quark matter
Shigehiro Yasui, Kei Suzuki, Kazunori Itakura
We investigate properties of the ground state of a light quark matter with heavy quark impurities. This system exhibits the "QCD Kondo effect" where the interaction strength betwee…
Charmonium ground and excited states at finite temperature from complex Borel sum rules
Ken-Ji Araki, Kei Suzuki, Philipp Gubler +1
Charmonium spectral functions in vector and pseudoscalar channels at finite temperature are investigated through the complex Borel sum rules and the maximum entropy method. Our app…
Delayed versus accelerated quarkonium formation in a magnetic field
Kei Suzuki, Su Houng Lee
Formation time of heavy quarkonia in a homogeneous magnetic field is analyzed by using a phenomenological ansatz of the vector current correlator. Because the existence of a magnet…
Heavy meson spectroscopy under strong magnetic field
Tetsuya Yoshida, Kei Suzuki
Spectra of the neutral heavy mesons, , , , , , , , , , and , in a homogeneous magnetic fie…
Kondo phase diagram of quark matter
Shigehiro Yasui, Kei Suzuki, Kazunori Itakura
We discuss the ground state of a quark matter containing heavy quarks as impurities in a simple model which exhibits the QCD Kondo effect. The model includes a current-current inte…
Cigar-shaped quarkonia under strong magnetic field
Kei Suzuki, Tetsuya Yoshida
Heavy quarkonia in a homogeneous magnetic field are analyzed by using a potential model with constituent quarks. To obtain anisotropic wave functions and corresponding eigenvalues,…