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Fujii, Daisuke; Hosaka, Atsushi*; Iwanaka, Akihiro*; Sakai, Tadakatsu*; Tachibana, Motoi*
Physical Review D, 113(3), p.034003_1 - 034003_17, 2026/03
Times Cited Count：0 Percentile：0.00(Astronomy & Astrophysics)Understanding the behavior of QCD matter under strong coupling remains a difficult task due to its inherently non-perturbative character. In this context, we investigate a two-flavor hard-wall holographic model to explore finite-density QCD at zero temperature, incorporating effects from a nonzero quark mass. The dense matter phase is described by solving the classical equations of motion within a homogeneous ansatz. To establish a connection between the bulk gravity theory and boundary QCD observables, we perform holographic renormalization and formulate the corresponding holographic dictionary. In analyzing the phase structure, we highlight the importance of introducing an IR boundary term at the hard-wall cutoff. Within this setup, we identify a phase of baryonic matter characterized by a large baryon number density and a significantly reduced chiral condensate. We derive the equation of state for this phase and use it to compute the mass-radius relation for neutron stars.
-wave 
baryonsSu, N.*; Chen, H.-X.*; Gubler, P.; Hosaka, Atsushi
Physical Review D, 113(1), p.016005_1 - 016005_7, 2026/01
Times Cited Count：1 Percentile：71.31(Astronomy & Astrophysics)Shim, S.-I.*; Hosaka, Atsushi
Proceedings of Science (Internet), 500, p.010_1 - 010_6, 2026/01
no abstracts in English
Ishikawa, Takatsugu*; Hosaka, Atsushi; Gubler, P.; Sako, Hiroyuki; Tanida, Kiyoshi; 33 of others*
Proceedings of Science (Internet), 500, p.225_1 - 225_5, 2026/01
Fujii, Daisuke; Hosaka, Atsushi*; Iwanaka, Akihiro*; Sakai, Tadakatsu*; Tachibana, Motoi*
Proceedings of Science (Internet), 500, p.135_1 - 135_6, 2026/01
Understanding strongly coupled QCD matter remains challenging due to its non-perturbative nature. We study finite-density, zero-temperature QCD in a two-flavor hard-wall holographic model with nonzero quark mass. The dense phase is obtained by solving the classical equations of motion under a homogeneous ansatz. To relate bulk fields to boundary observables, we perform holographic renormalization and construct the dictionary, emphasizing the essential role of an IR boundary term at the hard-wall cutoff. Within this setup we uncover a baryonic phase with large baryon number density and a strongly suppressed chiral condensate. From these solutions we derive the equation of state and compute neutron-star mass-radius relations, finding stars above two solar masses over a broad parameter range.
from QCD sum rulesSu, N.*; Chen, H.-X.*; Gubler, P.; Hosaka, Atsushi
Proceedings of Science (Internet), 500, p.076_1 - 076_6, 2026/01
structures from a coupled-channel perspectiveZhang, Y.*; Song, Q.-F.*; L
, Q.-F.*; Nagahiro, Hideko*; Hosaka, Atsushi
Physical Review D, 112(3), p.034035_1 - 034035_11, 2025/08
Times Cited Count：2 Percentile：46.99(Astronomy & Astrophysics)no abstracts in English
in a hadronic molecule and a triangle singularity approach at finite temperatureZhang, Y.*; Hosaka, Atsushi; Wang, Q.*; Yasui, Shigehiro*
Physical Review D, 112(1), p.016014_1 - 016014_14, 2025/07
Times Cited Count：3 Percentile：46.99(Astronomy & Astrophysics)no abstracts in English
moleculePan, Y.-W.*; Lu, J.-X.*; Hiyama, Emiko*; Geng, L.-S.*; Hosaka, Atsushi
Physical Review D, 111(11), p.114006_1 - 114006_9, 2025/06
Times Cited Count：3 Percentile：46.99(Astronomy & Astrophysics)no abstracts in English
Hosaka, Atsushi; Kanada-En
o, Yoshiko*; Yamaguchi, Yasuhiro*
European Physical Journal A, 61(5), p.103_1 - 103_17, 2025/05
Times Cited Count：5 Percentile：63.81(Physics, Nuclear)no abstracts in English
correlation functionAbreu, L. M.*; Gubler, P.; Khemchandani, K. P.*; Mart
nez Torres, A.*; Hosaka, Atsushi
Physics Letters B, 860, p.139175_1 - 139175_7, 2025/01
Times Cited Count：14 Percentile：93.53(Astronomy & Astrophysics) from QCD sum rulesSu, N.*; Chen, H.-X.*; Gubler, P.; Hosaka, Atsushi
Nuclear and Particle Physics Proceedings, 347, p.2 - 5, 2024/12
systemPan, Y.-W.*; Liu, Z.-W.*; Geng, L.-S.*; Hosaka, Atsushi; Liu, X.*
Physical Review D, 110(9), p.094004_1 - 094004_8, 2024/11
Times Cited Count：3 Percentile：36.06(Astronomy & Astrophysics)no abstracts in English
Khemchandani, K. P.*; Martnez Torres, A.*; Kim, S.-H.*; Nam, S.-I.*; Hosaka, Atsushi; Nagahiro, Hideko*
EPJ Web of Conferences, 301, p.03001_1 - 03001_10, 2024/08
Times Cited Count：0 Percentile：0.00(Physics, Nuclear)no abstracts in English
from QCD sum rulesSu, N.*; Chen, H.-X.*; Gubler, P.; Hosaka, Atsushi
Physical Review D, 110(3), p.034007_1 - 034007_9, 2024/08
Times Cited Count：9 Percentile：68.14(Astronomy & Astrophysics)
dibaryon as a weakly bound system in 
collisionsWu, T.-C.*; Hosaka, Atsushi; Geng, L.-S.*
Physical Review D, 109(11), p.114009_1 - 114009_8, 2024/06
Times Cited Count：0 Percentile：0.00(Astronomy & Astrophysics)no abstracts in English
Song, Q.-F.*; L, Q.-F.*; Hosaka, Atsushi
European Physical Journal C, 84(1), p.89_1 - 89_15, 2024/01
Times Cited Count：6 Percentile：58.29(Physics, Particles & Fields)no abstracts in English
and 
Xi, H.-Z.*; Jiang, Y.-W.*; Chen, H.-X.*; Hosaka, Atsushi; Su, N.*
Physical Review D, 108(9), p.094019_1 - 094019_13, 2023/11
Times Cited Count：10 Percentile：60.14(Astronomy & Astrophysics)no abstracts in English
Meng, Q.*; Hiyama, Emiko*; Oka, Makoto*; Hosaka, Atsushi; Xu, C.*
Physics Letters B, 846, p.138221_1 - 138221_6, 2023/11
Times Cited Count：17 Percentile：91.08(Astronomy & Astrophysics)no abstracts in English
Giachino, A.*; Hosaka, Atsushi; Santopinto, E.*; Takeuchi, Sachiko*; Takizawa, Makoto*; Yamaguchi, Yasuhiro*
Physical Review D, 108(7), p.074012_1 - 074012_6, 2023/10
Times Cited Count：22 Percentile：84.22(Astronomy & Astrophysics)no abstracts in English
