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Mun, M.-H.*; Shin, I. J.*; Paeng, W.-G.*; Harada, Masayasu*; Kim, Y.*
European Physical Journal A, 59(7), p.149_1 - 149_6, 2023/07
Times Cited Count：0 Percentile：0.02(Physics, Nuclear)Saionji, Takahiro*; Jido, Daisuke*; Harada, Masayasu*
Progress of Theoretical and Experimental Physics (Internet), 2023(3), p.033D01_1 - 033D01_18, 2023/03
Times Cited Count：0 Percentile：0.01(Physics, Multidisciplinary)Minamikawa, Takuya*; Gao, B.*; Kojo, Toru*; Harada, Masayasu*
Symmetry (Internet), 15(3), p.745_1 - 745_30, 2023/03
Times Cited Count：3 Percentile：73.88(Multidisciplinary Sciences)
anomaly on nuclear and neutron star equation of state based on a parity doublet modelGao, B.*; Minamikawa, Takuya*; Kojo, Toru*; Harada, Masayasu*
Physical Review C, 106(6), p.065205_1 - 065205_14, 2022/12
Times Cited Count：2 Percentile：52.69(Physics, Nuclear)Meng, Q.*; Harada, Masayasu*; Hiyama, Emiko; Hosaka, Atsushi; Oka, Makoto
Physics Letters B, 824, p.136800_1 - 136800_5, 2022/01
Times Cited Count：14 Percentile：97.23(Astronomy & Astrophysics)Spectrum of the doubly heavy tetraquarks, 
, is studied in a constituent quark model. Four-body problem is solved in a variational method where the real scaling technique is used to identify resonant states above the fall-apart decay thresholds. In addition to the two bound states that were reported in the previous study we have found several narrow resonant states above the 
and 
thresholds. Their structures are studied and are interpreted by the quark dynamics. A narrow resonance with spin-parity 
is found to be a mixed state of a compact tetraquark and a scattering state. This is driven by a strong color Coulombic attraction between the 
quarks. Negative-parity excited resonances with 
, 
and 
form a triplet under the heavy-quark spin symmetry. It turns out that they share a similar structure to the 
-mode of a singly heavy baryon as a result of the strongly attractive correlation for the doubly heavy diquark.
anomalyKawakami, Yohei*; Harada, Masayasu*; Oka, Makoto; Suzuki, Kei
Physical Review D, 102(11), p.114004_1 - 114004_9, 2020/12
Times Cited Count：7 Percentile：47.3(Astronomy & Astrophysics)We study strong and radiative decays of excited singly heavy baryons using an effective chiral Lagrangian based on the diquark picture. The effective Lagrangian contains a anomaly term, which is found to suppress the decay width of 
.
anomalyHarada, Masayasu*; Liu, Y.-R.*; Oka, Makoto; Suzuki, Kei
Physical Review D, 101(5), p.054038_1 - 054038_11, 2020/03
Times Cited Count：16 Percentile：74.34(Astronomy & Astrophysics)Using a chiral effective theory of diquarks, we analyze the spectrum and structure of diquark and heavy baryons consisting of diquarks. anomaly is considered in the chiral Lagrangian and its effects are studied.
Nakajima, Kenji; Kawakita, Yukinobu; Ito, Shinichi*; Abe, Jun*; Aizawa, Kazuya; Aoki, Hiroyuki; Endo, Hitoshi*; Fujita, Masaki*; Funakoshi, Kenichi*; Gong, W.*; et al.
Quantum Beam Science (Internet), 1(3), p.9_1 - 9_59, 2017/12
The neutron instruments suite, installed at the spallation neutron source of the Materials and Life Science Experimental Facility (MLF) at the Japan Proton Accelerator Research Complex (J-PARC), is reviewed. MLF has 23 neutron beam ports and 21 instruments are in operation for user programs or are under commissioning. A unique and challenging instrumental suite in MLF has been realized via combination of a high-performance neutron source, optimized for neutron scattering, and unique instruments using cutting-edge technologies. All instruments are/will serve in world-leading investigations in a broad range of fields, from fundamental physics to industrial applications. In this review, overviews, characteristic features, and typical applications of the individual instruments are mentioned.
collisions at 
= 200 GeVAdare, A.*; Afanasiev, S.*; Aidala, C.*; Ajitanand, N. N.*; Akiba, Y.*; Al-Bataineh, H.*; Alexander, J.*; Aoki, K.*; Aphecetche, L.*; Armendariz, R.*; et al.
Physical Review D, 84(1), p.012006_1 - 012006_18, 2011/07
Times Cited Count：29 Percentile：72.31(Astronomy & Astrophysics)We report on the event structure and double helicity asymmetry (
) of jet production in longitudinally polarized collisions at = 200 GeV. Photons and charged particles were measured by the PHENIX experiment. Event structure was compared with the results from PYTHIA event generator. The production rate of reconstructed jets is satisfactorily reproduced with the next-to-leading-order perturbative QCD calculation. We measured = -0.0014 
0.0037 at the lowest 
bin and -0.0181 0.0282 at the highest bin. The measured is compared with the predictions that assume various 
distributions.
collisions at = 200 and 62.4 GeVAdare, A.*; Afanasiev, S.*; Aidala, C.*; Ajitanand, N. N.*; Akiba, Yasuyuki*; Al-Bataineh, H.*; Alexander, J.*; Aoki, Kazuya*; Aphecetche, L.*; Armendariz, R.*; et al.
Physical Review C, 83(6), p.064903_1 - 064903_29, 2011/06
Times Cited Count：184 Percentile：99.44(Physics, Nuclear)Transverse momentum distributions and yields for 
, and 
in collisions at = 200 and 62.4 GeV at midrapidity are measured by the PHENIX experiment at the RHIC. We present the inverse slope parameter, mean transverse momentum, and yield per unit rapidity at each energy, and compare them to other measurements at different collisions. We also present the scaling properties such as 
and 
scaling and discuss the mechanism of the particle production in collisions. The measured spectra are compared to next-to-leading order perturbative QCD calculations.
+ collisions at = 200 GeV and scaling properties of hadron productionAdare, A.*; Afanasiev, S.*; Aidala, C.*; Ajitanand, N. N.*; Akiba, Y.*; Al-Bataineh, H.*; Alexander, J.*; Aoki, K.*; Aphecetche, L.*; Armendariz, R.*; et al.
Physical Review D, 83(5), p.052004_1 - 052004_26, 2011/03
Times Cited Count：175 Percentile：98.48(Astronomy & Astrophysics)The PHENIX experiment at RHIC has measured the invariant differential cross section for production of 
, 
, 
and 
mesons in collisions at = 200 GeV. The spectral shapes of all hadron transverse momentum distributions are well described by a Tsallis distribution functional form with only two parameters, 
and 
, determining the high 
and characterizing the low regions for the spectra, respectively. The integrated invariant cross sections calculated from the fitted distributions are found to be consistent with existing measurements and with statistical model predictions.
anomalyOka, Makoto; Harada, Masayasu*; Suzuki, Kei; Liu, Y.-R.*
no journal, ,
Using a chiral effective theory of diquarks, we analyze the spectrum and structure of diquark and heavy baryons consisting of diquarks. UA(1) anomaly is considered in the chiral Lagrangian and its effects are studied.
