LEPS Group - Publications

Publications

Journal Articles

First measurement of differential cross sections and photon beam asymmetries for photoproduction of the f⁰(980) meson decaying into π⁰π⁰ at E_γ<2.4 GeV,
N. Muramatsu, S.K. Wang, Q.H. He et al.,
Phys. Rev. C 107, L042201 (2023).

Differential cross sections and photon beam asymmetries of η photoproduction on the proton at E_γ=1.3–2.4 GeV,
T. Hashimoto, T. Nam, N. Muramatsu et al.,
Phys. Rev. C 106, 035201 (2022).
SPring-8 LEPS2 beamline: A facility to produce a multi-GeV photon beam
via laser Compton scattering,
N. Muramatsu, M. Yosoi, T. Yorita, Y. Ohashi et al.,
Nucl. Instrum. Meth A 1033, 166677 (2022).
Differential cross sections, photon beam asymmetries, and spin density
matrix elements of ω photoproduction off the proton at E_γ=1.3−2.4 GeV
N. Muramatsu et al.,
Phys. Rev. C 102, 025201 (2020).
Search for η′ Bound Nuclei in the ¹²C(γ,p) Reaction with Simultaneous
Detection of Decay Products
N. Tomida, N. Muramatsu, M. Niiyama et al.,
Phys. Rev. Lett. 124, 202501 (2020).
Measurement of neutral pion photoproduction off the proton with the
large acceptance electromagnetic calorimeter BGOegg,
N. Muramatsu et al.,
Phys. Rev. C 100, 055202 (2019).
A compensated multi-gap RPC with 2 m strips for the LEPS2 experiment,
K. Watanabe et al.,
Nucl. Instrum. and Meth. A 925, 188 (2019).
Differential Cross Section and Photon-Beam Asymmetry for the γ → p → π-
Δ⁺⁺ (1232) Reaction at Forward π- Angles for Eγ=1.5-2.95 GeV
H. Kohri, S.H. Shiu, W.C. Chang, Y.Yanai et al.,
Phys. Rev. Lett. 120, 202004 (2018).
First measurement of coherent φ-meson photoproduction from ⁴He near threshold, T. Hiraiwa, M. Yosoi, M. Niiyama, Y. Morino, Y. Nakatsugawa, M. Sumihama, et al.,
Phys. Rev. C 97,035208 (2018).
Photoproduction of Λ and Σ⁰hyperons off protons with linearly polarized photons at E_γ=1.5-3.0 GeV,
S.H. Shiu, H. Kohri, W.C. Chang, et al.,
Phys. Rev. C 97, 015208 (2018).
Differential cross section and photon-beam asymmetry for the γp→π⁺n reaction at forward π⁺ angles at E_γ=1.5-2.95 GeV,
H. Kohri, S. Y. Wang, S. H. Shiu, W. C. Chang, Y. Yanai et al.,
Phys. Rev. C 97, 015205 (2018).
$ϕ$ photoproduction on the proton at E_g=1.5-2.9 GeV,
K. Mizutani, M. Niiyama, T. Nakano, M. Yosoi, Y. Nozawa et al.,
Phys. Rev. C 96, 062201 (2017).
Testing a prototype BGO calorimeter with 100–800 MeV positron beams,
T. Ishikawa et al.
Nucl. Instrum. and Meth. A 837, 109 (2016).
Interference effect between $ϕ$ and $Λ (1520)$ production channels in the $γ p \to K^{+} K^{-} p$ reaction near threshold,
S.Y. Ryu, J.K. Ahn, T. Nakano et al.,
Phys.Rev.Lett. 116, 232001 (2016).
Backward-angle photoproduction of ω and η′ mesons from protons in the photon energy range from 1.5 to 3.0 GeV,
Y. Morino, Y. Nakatsugawa, M. Yosoi, M. Niiyama et al.,
PTEP 2015, 013D01 (2015).
Development of high intensity laser-electron photon beams up to 2.9GeV at the SPring-8 LEPS beamline,
N. Muramatsu, Y. Kon, S. Daté, Y. Ohashi et al.,
Nucl.Instrum.Meth. A737, 184-194 (2014).
Search for K⁻pp bound state via γd→K⁺π⁻X reaction at E_γ=1.5−2.4 GeV, A.O. Tokiyasu, M. Niiyama, J.D. Parker et al.,
Phys.Lett. B728, 616-621 (2014)
High time resolution RPCs with different readout geometries,
N. Tomida, C. Hsieh, M. Niiyama et al.,
J. Instrum. 7, P12005 (2012)
Spin-Density Matrix Elements for γp→K^∗0Σ⁺ at E_γ=1.85−3.0 GeV with Evidence for the κ(800) Meson Exchange,
S.H. Hwang, K. Hicks, J.K. Ahn, T. Nakano et al.,
Phys.Rev.Lett. 108, 092001 (2012).
Distillation of hydrogen isotopes for polarized HD target,
T. Ohta et al.,
Nucl.Instrum.Meth. A664, 347-352 (2012).
HD gas analysis with Gas Chromatography and Quadrupole Mass Spectrometer,
T. Ohta et al.,
Nucl.Instrum.Meth. A640, 241-246 (2011).
Measurement of Spin-Density Matrix Elements for ϕ-Meson Photoproduction from Protons and Deuterons Near Threshold,
W.C. Chang et al.,
Phys.Rev. C82, 015205 (2010).
Backward-angle η photoproduction from protons at E_γ = 1.6 - 2.4 GeV, M. Sumihama et al.,
Phys.Rev. C80, 052201 (2009).
Measurement of the incoherent γd→ϕpn photoproduction near threshold, W.C. Chang, M. Miyabe, T. Nakano et al.,
Phys.Lett. B684, 6-10 (2010).
Near-threshold Λ(1520) production by the γp → K⁺ Λ(1520) reaction at forward K⁺ angles,
H. Kohri et al.,
Phys.Rev.Lett. 104, 172001 (2010).
Near-threshold photoproduction of Lambda(1520) from protons and deuterons, N. Muramatsu, J.Y. Chen, W.C. Chang et al.,
Phys.Rev.Lett. 103, 012001 (2009).
Evidence of the Θ⁺ in the γd → K⁺ K^- pn reaction,
T. Nakano, N. Muramatsu et al.,
Phys.Rev. C79, 025210 (2009).
Cross Sections and Beam Asymmetries for K⁺ Σ^*- photoproduction from the deuteron at E_γ = 1.5-GeV - 2.4-GeV,
K Hicks, D. Keller, H. Kohri et al.,
Phys.Rev.Lett. 102, 012501 (2009).
Photoproduction of Λ(1405) and Σ⁰(1385) on the proton at E_γ = 1.5-2.4-GeV, M. Niiyama, H. Fujimura et al.,
Phys.Rev. C78, 035202 (2008).
Measurement of the polarized γp → K⁺Λ reaction at backward angles,
K. Hicks, T. Mibe, M. Sumihama et al.,
Phys.Rev. C76, 042201 (2007).
Backward-angle photoproduction of π⁰ mesons on the proton at E_γ = 1.5-2.4-GeV, M. Sumihama et al.,
Phys.Lett. B657, 32-37 (2007).
Forward coherent phi-meson photoproduction from deuterons near threshold, W.C. Chang, K. Horie, S. Shimizu, M. Miyabe et al.,
Phys.Lett. B658, 209-215 (2008).
Differential cross section and photon beam asymmetry for the γn→K⁺Σ^- reaction at E_γ= 1.5 GeV-2.4 GeV,
H. Kohri et al.,
Phys.Rev.Lett. 97, 082003 (2006).
The γp→K⁺Λ and γp→K⁺Σ⁰ reactions at forward angles with photon energies from 1.5-GeV to 2.4-GeV,
M. Sumihama et al.,
Phys.Rev. C73, 035214 (2006).
Diffractive φ-meson photoproduction on proton near threshold,
T. Mibe, W.C. Chang, T.Nakano et al.,
Phys.Rev.Lett. 95, 182001 (2005).
φ photo-production from Li, C, Al, and Cu nuclei at E_γ = 1.5-GeV to 2.4-GeV, T. Ishikawa et al.,
Phys.Lett. B608, 215-222 (2005).
Beam polarization asymmetries for the p(γ, K⁺)Λ and p(γ, K⁺)Σ⁰ reactions at E_γ = 1.5 Gev - 2.4 GeV,
R.G.T. Zegers, M. Sumihama et al.,
Phys.Rev.Lett. 91, 092001 (2003).
Evidence for a Narrow S=+1 Baryon Resonance in Photoproduction from the Neutron,
T. Nakano et al.,
Phys.Rev.Lett. 91, 012002 (2003).
DAQ system for LEPS experiment,
Y. Sugaya et al.,
IEEE Trans.Nucl.Sci. 48, 1282-1285 (2001).