K. Okubo

activity

20212025

most citedPattern of Global Spin Alignment of

ϕ

and

K^{* 0}

mesons in Heavy-Ion Collisions

149 citations · 797 across the 47 of their papers we have counts for

collaborators

Showing 2025Show all

8 papers · 1 filter

nucl-ex2025

Evidence of Spin-Interference Effects in Exclusive $J / ψ \to e^{+} e^{-}$ Photoproduction in Ultraperipheral Heavy-Ion Collisions

The STAR Collaboration

We report the first evidence of spin interference in exclusive $J / ψ \to e^{+} e^{-}$ photoproduction in ultraperipheral heavy-ion collisions at STAR at $s_{N N} = 200$ ~GeV. In Au+A…

hep-ex2025

Study of Central Exclusive Production of $π^{+} π^{-}$ , $K^{+} K^{-}$ and $p p ˉ$ Pairs in Proton-Proton Collisions at $s = 510$ GeV with the STAR Detector at RHIC

STAR Collaboration, B. E. Aboona, J. Adam +378

We report on the first measurement of the Central Exclusive Production process in proton-proton collisions: $pp \to p h^{+} h^{-} p$ (where $h = π, K, p$ ) at the center-of-…

hep-ex2025

Measurement of transverse polarization of $Λ$ and $Λ ˉ$ hyperons inside jets in $pp$ collisions at $s = 200$ GeV

STAR Collaboration, B. E. Aboona, J. Adam +363

A surprisingly large transverse polarization of $Λ$ hyperons in unpolarized hadron-nucleon/nucleus collisions has been observed for 50 years, and the origin of this polarization re…

hep-ex2025★ 4 cited

Energy Independence of the Collins Asymmetry in $p^{↑} p$ Collisions

STAR Collaboration, B. E. Aboona, J. Adam +367

The STAR experiment reports new, high-precision measurements of the transverse single-spin asymmetries for $π^{\pm}$ within jets, namely the Collins asymmetries, from transversely…

nucl-ex2025

Measurement of inclusive $J / ψ$ production in Au+Au collisions at $s_{NN} = 54.4$ GeV at STAR

The STAR Collaboration

This article presents measurements of inclusive $J / ψ$ production at midrapidity ( $∣ y ∣ <$ 1.0) in Au+Au collisions at $s_{NN} = 54.4$ GeV with the STAR dete…

hep-ex2025★ 16 cited

Measuring spin correlation between quarks during QCD confinement

The STAR Collaboration

The vacuum is now understood to possess a rich and complex structure, characterized by fluctuating energy fields and a condensate of virtual quark-antiquark pairs. The spontaneous…

Evidence of Spin-Interference Effects in Exclusive J/ψ→e+e− Photoproduction in Ultraperipheral Heavy-Ion Collisions

Study of Central Exclusive Production of π+π−, K+K− and ppˉ​ Pairs in Proton-Proton Collisions at s​=510 GeV with the STAR Detector at RHIC

Measurement of transverse polarization of Λ and Λˉ hyperons inside jets in pp collisions at s​=200 GeV

Energy Independence of the Collins Asymmetry in p↑p Collisions

Measurement of inclusive J/ψ production in Au+Au collisions at sNN​​=54.4 GeV at STAR

Measuring spin correlation between quarks during QCD confinement

Evidence of Spin-Interference Effects in Exclusive $J / ψ \to e^{+} e^{-}$ Photoproduction in Ultraperipheral Heavy-Ion Collisions

Study of Central Exclusive Production of $π^{+} π^{-}$ , $K^{+} K^{-}$ and $p p ˉ$ Pairs in Proton-Proton Collisions at $s = 510$ GeV with the STAR Detector at RHIC

Measurement of transverse polarization of $Λ$ and $Λ ˉ$ hyperons inside jets in $pp$ collisions at $s = 200$ GeV

Energy Independence of the Collins Asymmetry in $p^{↑} p$ Collisions

Measurement of inclusive $J / ψ$ production in Au+Au collisions at $s_{NN} = 54.4$ GeV at STAR