JOPSS - Search Results

Journal Articles

Understanding the nature of in a coupled-channel approach

L, Q.-F.*; Nagahiro, Hideko*; Hosaka, Atsushi

Physical Review D, 107(1), p.014025_1 - 014025_10, 2023/01

https://doi.org/10.1103/PhysRevD.107.014025

Times Cited Count：3 Percentile：84.41(Astronomy & Astrophysics)

Journal Articles

Open charm and bottom meson-nucleon potentials la the nuclear force

Yamaguchi, Yasuhiro; Yasui, Shigehiro*; Hosaka, Atsushi

Physical Review D, 106(9), p.094001_1 - 094001_16, 2022/11

https://doi.org/10.1103/PhysRevD.106.094001

Times Cited Count：1 Percentile：0.01(Astronomy & Astrophysics)

Journal Articles

Exotic properties of and its impact on photoproduction of light hyperons

Khemchandani, K. P.*; Martnez Torres, A.*; Kim, S.-H.*; Nam, S.-I.*; Hosaka, Atsushi

Acta Physica Polonica A, 142(3), p.329 - 336, 2022/09

https://doi.org/10.12693/APhysPolA.142.329

Times Cited Count：0 Percentile：0(Physics, Multidisciplinary)

Journal Articles

Electromagnetic transition amplitude for Roper resonance from holographic QCD

Fujii, Daisuke; Iwanaka, Akihiro*; Hosaka, Atsushi*

Physical Review D, 106(1), p.014010_1 - 014010_6, 2022/07

https://doi.org/10.1103/PhysRevD.106.014010

Times Cited Count：0 Percentile：0.01(Astronomy & Astrophysics)

The Roper resonance, the first excited state of the nucleon, is one of the best established baryon resonates. Yet, its properties have not been consistently explained by effective models of QCD, such as the non-relativistic quark model. In this paper, we propose an alternative approach in the Sakai-Sugimoto model that is one of the holographic models of QCD. In particular, we analyze the helicity amplitude of the electromagnetic transitions at the leading of 't Hooft coupling . The model incorporates baryon structure at short distance by nonlinear mesons surrounded by meson clouds at long distance. We demonstrate that the recently observed data by CLAS are explained in the present approach.

Journal Articles

Strong decays of multistrangeness baryon resonances in the quark model

Arifi, A. J.*; Suenaga, Daiki*; Hosaka, Atsushi; Oh, Y. S.*

Physical Review D, 105(9), p.094006_1 - 094006_17, 2022/05

https://doi.org/10.1103/PhysRevD.105.094006

Times Cited Count：7 Percentile：77.92(Astronomy & Astrophysics)

Journal Articles

Decays of Roper-like singly heavy baryons in a chiral model

Suenaga, Daiki*; Hosaka, Atsushi

Physical Review D, 105(7), p.074036_1 - 074036_13, 2022/04

https://doi.org/10.1103/PhysRevD.105.074036

Times Cited Count：5 Percentile：67.33(Astronomy & Astrophysics)

Journal Articles

Charmed baryon pair production in proton-antiproton collisions in effective Lagrangian and Regge approaches

Sangkhakrit, T.*; Shim, S.-I.*; Yan, Y.*; Hosaka, Atsushi

European Physical Journal A, 58(2), p.32_1 - 32_11, 2022/02

https://doi.org/10.1140/epja/s10050-022-00678-x

Times Cited Count：2 Percentile：52.69(Physics, Nuclear)

Journal Articles

Doubly heavy tetraquark resonant states

Meng, Q.*; Harada, Masayasu*; Hiyama, Emiko; Hosaka, Atsushi; Oka, Makoto

Physics Letters B, 824, p.136800_1 - 136800_5, 2022/01

https://doi.org/10.1016/j.physletb.2021.136800

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.

Journal Articles

Prediction of Double-heavy Tetraquarks Bound States in Quark Model

Meng, Q.*; Hiyama, Emiko; Hosaka, Atsushi; Oka, Makoto; Gubler, P.; Can, K. U.*; Takahashi, Toru*; Zong, H. S.*

Few-Body Systems, 62(4), p.79_1 - 79_5, 2021/12

https://doi.org/10.1007/s00601-021-01665-6

Times Cited Count：0 Percentile：0(Physics, Multidisciplinary)

Journal Articles

and as interfering $Sigma_cbar{D}$ and $Lambda_cbar{D}^*$ threshold cusps

Nakamura, Satoshi*; Hosaka, Atsushi; Yamaguchi, Yasuhiro

Physical Review D, 104(9), p.L091503_1 - L091503_8, 2021/11

https://doi.org/10.1103/PhysRevD.104.L091503

Times Cited Count：15 Percentile：82.88(Astronomy & Astrophysics)

Journal Articles

Heavy hadronic molecules coupled with multiquark states

Yamaguchi, Yasuhiro; Garca-Tecocoatzi, H.*; Giachino, A.*; Hosaka, Atsushi; Santopinto, E.*; Takeuchi, Sachiko*; Takizawa, Makoto*

Few-Body Systems, 62(3), p.33_1 - 33_7, 2021/09

https://doi.org/10.1007/s00601-021-01614-3

Times Cited Count：1 Percentile：0(Physics, Multidisciplinary)

We investigate the hidden-charm pentaquarks as hadronic molecules of $Lambda_cbar{D}^{(ast)}$ and $Sigma_c^{(ast)}bar{D}^{(ast)}$ coupled to a compact core by employing an interaction satisfying the heavy quark and chiral symmetries. Our model can consistently explain the masses and decay widths of , and with spin parity assignments , and , respectively. We find that the mass ordering is dominantly determined by the short-range interaction given by coupling to the compact core, while the decay widths by the tensor force of the one-pion exchange.