K. Ozawa

activity

20002026

most citedEnhanced production of direct photons in Au+Au collisions at sqrt(s_NN)=200 GeV and implications for the initial temperature

401 citations · 5.4k across the 77 of their papers we have counts for

collaborators

77 papers

nucl-ex2026

Direct measurement of the in-medium $η^{'}$ mass spectrum through the $γ γ$ decay channel

Y. Matsumura, N. Muramatsu, T. A. Hashimoto +58

We measured the invariant mass of the $η^{'} (958)$ meson through the $η^{'} \to γ γ$ decay channel to search for possible character change of $η^{'}$ in a nuclear mediu…

nucl-ex2021★ 22 cited

Extension of the J-PARC Hadron Experimental Facility: Third White Paper

Kazuya Aoki, Hiroyuki Fujioka, Toshiyuki Gogami +40

The J-PARC Hadron Experimental Facility was constructed with an aim to explore the origin and evolution of matter in the universe through the experiments with intense particle beam…

nucl-ex2021★ 13 cited

Resonance-like structure near the $η d$ threshold in the $γ d$ { $\to$ } $π^{0} η d$ reaction

T. Ishikawa, H. Fujimura, H. Fukasawa +34

To investigate the interaction between the nucleon $N$ and nucleon resonance $N (1535) 1/ 2^{-}$ , the $η d$ threshold structure connected to the isoscalar $S$ -wave $N$ - $N (1535) 1/ 2^{-}$ sys…

hep-ex2020★ 14 cited

Transverse single-spin asymmetries of midrapidity $π^{0}$ and $η$ mesons in polarized $p$ $+$ $p$ collisions at $s = 200$ GeV

U. A. Acharya, C. Aidala, Y. Akiba +311

We present a measurement of the transverse single-spin asymmetry for $π^{0}$ and $η$ mesons in $p^{↑}$ $+$ $p$ collisions in the pseudorapidity range $∣ η ∣ < 0.35$ and at a center-of…

physics.ins-det2020

Data acquisition system in Run-0a for the J-PARC E16 experiment

Tomonori Takahashi, Kazuya Aoki, Sakiko Ashikaga +26

J-PARC E16 is an experiment to examine the origin of hadron mass through a systematic measurement of spectral changes of vector mesons in nuclei. The measurement of $e^{+} e^{-}$ pa…

nucl-ex2020★ 25 cited

Search for $η^{'}$ bound nuclei in the $^{12} C (γ, p)$ reaction with simultaneous detection of decay products

N. Tomida, N. Muramatsu, M. Niiyama +60

We measured missing mass spectrum of the $^{12} C (γ, p)$ reaction for the first time in coincidence with potential decay products from $η^{'}$ bound nuclei. We tagged an ( $η + p$ ) p…

Direct measurement of the in-medium η′ mass spectrum through the γγ decay channel

Extension of the J-PARC Hadron Experimental Facility: Third White Paper

Resonance-like structure near the ηd threshold in the γd{→}π0ηd reaction

Transverse single-spin asymmetries of midrapidity π0 and η mesons in polarized p+p collisions at s​=200 GeV

Data acquisition system in Run-0a for the J-PARC E16 experiment

Search for η′ bound nuclei in the 12C(γ,p) reaction with simultaneous detection of decay products

Direct measurement of the in-medium $η^{'}$ mass spectrum through the $γ γ$ decay channel

Resonance-like structure near the $η d$ threshold in the $γ d$ { $\to$ } $π^{0} η d$ reaction

Transverse single-spin asymmetries of midrapidity $π^{0}$ and $η$ mesons in polarized $p$ $+$ $p$ collisions at $s = 200$ GeV

Search for $η^{'}$ bound nuclei in the $^{12} C (γ, p)$ reaction with simultaneous detection of decay products