High Energy Accelerator Research Organization

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19912026

most citedEvidence for oscillation of atmospheric neutrinos

5.1k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

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351 papers · 1 filter

nucl-ex2026

Evolution of high-spin states in neutron-rich $^{195 - 202}$ Au isotopes approaching the $N = 126$ shell closure

Y. Cho, Y. H. Kim, A. Navin +48

\textbf{Background: } The nuclear structure in the region southwest of the doubly magic $^{208}$ Pb is important to benchmark theoretical models relevant for neutron-rich heavy elem…

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-ex2026

Comprehensive measurement of $η^{'}$ photoproduction off the proton at $E_{γ} < 2.4$ $GeV$

N. Muramatsu, J. K. Ahn, W. C. Chang +61

For the spectroscopy of nucleon resonances at the total energies from the $η^{'}$ -meson production threshold to $2.32$ $GeV$ , photon beam asymmetries of the reaction $γ…

nucl-ex2026

Influence of secondary neutrons on alpha-particle induced reaction cross section measurement below the Coulomb barrier

Yamato Fujii, Naohiko Otuka, Kenta Sugihara +3

The influence of the secondary neutrons on measurements of alpha-particle activation cross sections below the Coulomb barrier was studied for the $^{nat}$ Pt( $α$ ,x)$^\mathrm{…

nucl-ex2025

First Constraint on P-odd/T-odd Cross Section in Polarized Neutron Transmission through Transversely Polarized $^{139}$ La

Rintaro Nakabe, Clayton J. Auton, Shunsuke Endo +27

We report the first constraint on time-reversal invariance violating (TRIV) effects in polarized neutron transmission through a transversely polarized $^{139}$ La target. We formula…

nucl-ex2025★ 2 cited

Measurement of coherent exclusive $J / ψ \to μ^{+} μ^{-}$ production in ultraperipheral Pb+Pb collisions at $s_{NN} = 5.36$ TeV with the ATLAS detector

ATLAS Collaboration

The ATLAS experiment has performed a measurement of coherent exclusive $J / ψ \to μ^{+} μ^{-}$ production in ultraperipheral Pb+Pb collisions at $s_{NN} = 5.36$ TeV. The data…

nucl-ex2025

Initial results of the TRIUMF ultracold advanced neutron source

B. Algohi, D. Anthony, L. Barrón-Palos +83

We report the first results on ultracold neutron production from a new spallation-driven superfluid $^{4}$ He (He-II) source at TRIUMF, which is being prepared for a new, precise meas…

nucl-ex2025

Velocity dependence of the mass modifications of $ρ$ and $ω$ mesons in 12 GeV $p + A$ reactions

Wataru Nakai, Kazuya Aoki, Junsei Chiba +26

This study measured the invariant mass spectra of $ρ$ and $ω$ mesons in the $e^{+} e^{-}$ decay channel for 12 GeV (12.9 GeV/ $c$ ) $p + C$ and $p + Cu$ reactions ($\sqrt{s}…

nucl-ex2025★ 3 cited

Measurement of the branching ratio of $^{16} N$ , $^{15} C$ , $^{12} B$ , and $^{13} B$ isotopes through the nuclear muon capture reaction in the Super-Kamiokande detector

Y. Maekawa, K. Abe, S. Abe +263

The Super-Kamiokande detector has measured solar neutrinos for more than $25$ years. The sensitivity for solar neutrino measurement is limited by the uncertainties of energy scale…

nucl-ex2025★ 6 cited

Analysis of spectral modification of $ϕ$ mesons at finite density using a transport approach in the 12 GeV pA reactions

PS E325 Collaboration, Masaya Ichikawa, Philipp Gubler +26

The hadron spectrum at finite density is an important observable for exploring the origin of hadron masses. In the KEK-PS E325 experiment, the di-electron decays of phi mesons insi…

nucl-ex2025★ 1 cited

Measurement of radionuclide production probabilities in negative muon nuclear capture and validation of Monte Carlo simulation model

Y. Yamaguchi, M. Niikura, R. Mizuno +6

As part of the development of a sample radioactivity calculation program, we have measured radionuclide production probabilities in negative muon nuclear capture to update experime…

nucl-ex2025

Multiplicity and net-electric charge fluctuations in central Ar+Sc interactions at 13A, 19A, 30A, 40A, 75A, and 150A GeV/c beam momenta measured by NA61/SHINE at the CERN SPS

H. Adhikary, P. Adrich, K. K. Allison +128

This paper presents results on multiplicity fluctuations of positively and negatively charged hadrons as well as net-electric charge fluctuations measured in central Ar+Sc interact…

nucl-ex2025★ 11 cited

Evidence for the collective nature of radial flow in Pb+Pb collisions with the ATLAS detector

ATLAS Collaboration

Anisotropic flow and radial flow are two key probes of the expansion dynamics and properties of the quark-gluon plasma (QGP). While anisotropic flow has been extensively studied, r…

nucl-ex2025★ 5 cited

Direct observation of $β$ and $γ$ decay from a high-spin long-lived isomer in $^{187}$ Ta

J. L. Chen, H. Watanabe, P. M. Walker +20

$^{187}$ Ta ( $Z = 73$ , $N = 114$ ) is located in the neutron-rich $A \approx 190$ region where a prolate-to-oblate shape transition via triaxial softness is predicted to take place. A pr…

nucl-ex2025

Investigation of Medium Modifications to $^{12}$ C Structure Functions in the Resonance Region

S. Alsalmi, I. Albayrak, A. Ahmidouch +75

We present results from a high precision experimental study of the nuclear modification of the longitudinal ( $F_{L}$ ) to transverse ( $F_{1}$ ) structure function ratio for bound nucleon…

nucl-ex2025★ 1 cited

Lifetime measurement of the muonic atoms of enriched Si isotopes

R. Mizuno, M. Niikura, S. Akamatsu +12

Background: A muonic atom, composed of a negative muon and an atomic nucleus, undergoes two primary decay processes: muon-electron decay and muon nuclear capture. The branching rat…

nucl-ex2024★ 5 cited

Observation of top-quark pair production in lead-lead collisions at $s_{NN} = 5.02$ TeV with the ATLAS detector

ATLAS Collaboration

Top-quark pair production is observed in lead-lead (Pb+Pb) collisions at $s_{NN} = 5.02$ TeV at the Large Hadron Collider with the ATLAS detector. The data sample was r…

nucl-ex2024

Measurements at forward rapidity of elliptic flow of charged hadrons and open-heavy-flavor muons in Au $+$ Au collisions at $s_{_{N N}} = 200$ GeV

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +365

We present the first forward-rapidity measurements of elliptic anisotropy of open-heavy-flavor muons at the BNL Relativistic Heavy Ion Collider. The measurements are based on data…

nucl-ex2024★ 15 cited

Measurement of photonuclear jet production in ultra-peripheral Pb+Pb collisions at $s_{NN} = 5.02$ TeV with the ATLAS detector

ATLAS Collaboration

In ultra-relativistic heavy ion collisions at the LHC, each nucleus acts a sources of high-energy real photons that can scatter off the opposing nucleus in ultra-peripheral photonu…

nucl-ex2024★ 7 cited

Jet radius dependence of dijet momentum balance and suppression in Pb+Pb collisions at 5.02 TeV with the ATLAS detector

ATLAS Collaboration

This paper describes a measurement of the jet radius dependence of the dijet momentum balance between leading back-to-back jets in 1.72 $n b^{- 1}$ of Pb+Pb collisions collected in 2…

nucl-ex2024★ 19 cited

Disentangling sources of momentum fluctuations in Xe+Xe and Pb+Pb collisions with the ATLAS detector

ATLAS Collaboration

High-energy nuclear collisions create a quark-gluon plasma, whose initial condition and subsequent expansion vary from event to event, impacting the distribution of the event-wise…

nucl-ex2024★ 12 cited

Observation of $t t ˉ$ production in the lepton+jets and dilepton channels in $p$ +Pb collisions at $s_{NN} = 8.16$ TeV with the ATLAS detector

ATLAS Collaboration

This paper reports the observation of top-quark pair production in proton-lead collisions in the ATLAS experiment at the Large Hadron Collider. The measurement is performed using 1…

nucl-ex2024★ 1 cited

Search for a critical point of strongly-interacting matter in central $^{40}$ Ar + $^{45}$ Sc collisions at 13 $A$ -75 $A$ GeV/ $c$ beam momentum

SHINE Collaboration, H. Adhikary, P. Adrich +154

The critical point of strongly interacting matter is searched for at the CERN SPS by the NA61/SHINE experiment in central $^{40}$ Ar + $^{45}$ Sc collisions at 13 $A$ , 19 $A$ , 30 $A$ , 40…

nucl-ex2023★ 9 cited

High sensitivity of a future search for P-odd/T-odd interactions on the 0.75 eV $p$ -wave resonance in $n +^{139} La$ forward transmission determined using pulsed neutron beam

R. Nakabe, C. J. Auton, S. Endo +27

Neutron transmission experiments can offer a new type of highly sensitive search for time-reversal invariance violating (TRIV) effects in nucleon-nucleon interactions via the same…

Evolution of high-spin states in neutron-rich 195−202Au isotopes approaching the N=126 shell closure

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

Comprehensive measurement of η′ photoproduction off the proton at Eγ​<2.4 GeV

Influence of secondary neutrons on alpha-particle induced reaction cross section measurement below the Coulomb barrier

First Constraint on P-odd/T-odd Cross Section in Polarized Neutron Transmission through Transversely Polarized 139La

Measurement of coherent exclusive J/ψ→μ+μ− production in ultraperipheral Pb+Pb collisions at sNN​​=5.36 TeV with the ATLAS detector

Initial results of the TRIUMF ultracold advanced neutron source

Velocity dependence of the mass modifications of ρ and ω mesons in 12 GeV p+A reactions

Measurement of the branching ratio of 16N, 15C, 12B, and 13B isotopes through the nuclear muon capture reaction in the Super-Kamiokande detector

Analysis of spectral modification of ϕ mesons at finite density using a transport approach in the 12 GeV pA reactions

Measurement of radionuclide production probabilities in negative muon nuclear capture and validation of Monte Carlo simulation model

Multiplicity and net-electric charge fluctuations in central Ar+Sc interactions at 13A, 19A, 30A, 40A, 75A, and 150A GeV/c beam momenta measured by NA61/SHINE at the CERN SPS

Evidence for the collective nature of radial flow in Pb+Pb collisions with the ATLAS detector

Direct observation of β and γ decay from a high-spin long-lived isomer in 187Ta

Investigation of Medium Modifications to 12C Structure Functions in the Resonance Region

Lifetime measurement of the muonic atoms of enriched Si isotopes

Observation of top-quark pair production in lead-lead collisions at sNN​​=5.02 TeV with the ATLAS detector

Measurements at forward rapidity of elliptic flow of charged hadrons and open-heavy-flavor muons in Au+Au collisions at sNN​​​=200 GeV

Measurement of photonuclear jet production in ultra-peripheral Pb+Pb collisions at sNN​​=5.02 TeV with the ATLAS detector

Jet radius dependence of dijet momentum balance and suppression in Pb+Pb collisions at 5.02 TeV with the ATLAS detector

Disentangling sources of momentum fluctuations in Xe+Xe and Pb+Pb collisions with the ATLAS detector

Observation of ttˉ production in the lepton+jets and dilepton channels in p+Pb collisions at sNN​​=8.16 TeV with the ATLAS detector

Search for a critical point of strongly-interacting matter in central 40Ar +45Sc collisions at 13A-75A GeV/c beam momentum

High sensitivity of a future search for P-odd/T-odd interactions on the 0.75 eV p-wave resonance in n+139La forward transmission determined using pulsed neutron beam

Evolution of high-spin states in neutron-rich $^{195 - 202}$ Au isotopes approaching the $N = 126$ shell closure

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

Comprehensive measurement of $η^{'}$ photoproduction off the proton at $E_{γ} < 2.4$ $GeV$

First Constraint on P-odd/T-odd Cross Section in Polarized Neutron Transmission through Transversely Polarized $^{139}$ La

Measurement of coherent exclusive $J / ψ \to μ^{+} μ^{-}$ production in ultraperipheral Pb+Pb collisions at $s_{NN} = 5.36$ TeV with the ATLAS detector

Velocity dependence of the mass modifications of $ρ$ and $ω$ mesons in 12 GeV $p + A$ reactions

Measurement of the branching ratio of $^{16} N$ , $^{15} C$ , $^{12} B$ , and $^{13} B$ isotopes through the nuclear muon capture reaction in the Super-Kamiokande detector

Analysis of spectral modification of $ϕ$ mesons at finite density using a transport approach in the 12 GeV pA reactions

Direct observation of $β$ and $γ$ decay from a high-spin long-lived isomer in $^{187}$ Ta

Investigation of Medium Modifications to $^{12}$ C Structure Functions in the Resonance Region

Observation of top-quark pair production in lead-lead collisions at $s_{NN} = 5.02$ TeV with the ATLAS detector

Measurements at forward rapidity of elliptic flow of charged hadrons and open-heavy-flavor muons in Au $+$ Au collisions at $s_{_{N N}} = 200$ GeV

Measurement of photonuclear jet production in ultra-peripheral Pb+Pb collisions at $s_{NN} = 5.02$ TeV with the ATLAS detector

Observation of $t t ˉ$ production in the lepton+jets and dilepton channels in $p$ +Pb collisions at $s_{NN} = 8.16$ TeV with the ATLAS detector

Search for a critical point of strongly-interacting matter in central $^{40}$ Ar + $^{45}$ Sc collisions at 13 $A$ -75 $A$ GeV/ $c$ beam momentum

High sensitivity of a future search for P-odd/T-odd interactions on the 0.75 eV $p$ -wave resonance in $n +^{139} La$ forward transmission determined using pulsed neutron beam