papers

Publications (135)

cond-mat.mes-hall2001

Electrically-Controlled Nuclear Spin Polarization and Relaxation by Quantum-Hall states

K. Hashimoto, K. Muraki, T. Saku +1

We investigate interactions between electrons and nuclear spins by using the resistance (Rxx) peak which develops near filling factor n = 2/3 as a probe. By temporarily tuning n to…

cond-mat.mes-hall2004

Spin Degree of Freedom in the nu =1 Bilayer Electron System Investigated via Nuclear Spin Relaxation

N. Kumada, K. Muraki, K. Hashimoto +1

The nuclear-spin-relaxation rate 1/T_1 has been measured in a bilayer electron system at and around total Landau level filling factor nu =1. The measured 1/T_1, which probes electr…

nucl-ex2015

meson production in Au collisions at GeV

PHENIX Collaboration, A. Adare, C. Aidala +482

The PHENIX experiment has measured meson production in Au collisions at GeV using the dimuon and dielectron decay channels. The meson is meas…

cond-mat.supr-con2010

Line nodes in the energy gap of high-temperature superconducting BaFe_2(As_{1-x}P_x)_2 from penetration depth and thermal conductivity measurements

K. Hashimoto, M. Yamashita, S. Kasahara +10

We report magnetic penetration depth and thermal conductivity data for high-quality single crystals of BaFe(AsP) (\,K) which provide strong evidence t…

cond-mat.str-el2021

Strongly correlated superconductivity in a copper-based metal-organic framework with a perfect kagome lattice

T. Takenaka, K. Ishihara, M. Roppongi +17

Metal-organic frameworks (MOFs), which are self-assemblies of metal ions and organic ligands, provide a tunable platform to search a new state of matter. A two-dimensional (2D) per…

cond-mat.supr-con2025

Impact of charge-density-wave pattern on the superconducting gap in V-based kagome superconductors

T. Nagashima, K. Ishihara, Y. Yamakawa +12

Kagome metals VSb ( K, Rb, Cs) provide a compelling platform to explore the interplay between superconductivity (SC) and charge-density-wave (CDW) orders. While dist…

hep-ex2018

Cross section and longitudinal single-spin asymmetry for forward production in polarized collisions at GeV

A. Adare, C. Aidala, N. N. Ajitanand +426

We have measured the cross section and single spin asymmetries from forward production in longitudinally polarized collisions at $\sqrt{s}=…

nucl-ex2014

Beam-energy and system-size dependence of the space-time extent of the pion emission source produced in heavy ion collisions

A. Adare, S. Afanasiev, C. Aidala +619

Two-pion interferometry measurements are used to extract the Gaussian radii , , and , of the pion emission sources produced in CuCu and…

physics.flu-dyn2026

Jet coronation: Coexistence of compressible and incompressible dynamics

H. Watanabe, K. Hashimoto, W. K. A. Worby +4

This paper is associated with a poster winner of a 2025 American Physical Society's Division of Fluid Dynamics (DFD) Gallery of Fluid Motion Award for work presented at the DFD Gal…

nucl-ex2024

Measurement of elliptic flow of J in GeV AuAu collisions at forward rapidity

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

We report the first measurement of the azimuthal anisotropy of J at forward rapidity () in AuAu collisions at GeV at the Relativistic H…

cond-mat.supr-con2022

Bulk evidence of anisotropic -wave pairing with no sign change in the kagome superconductor CsVSb

M. Roppongi, K. Ishihara, Y. Tanaka +12

The recently discovered kagome superconductors VSb ( = K, Rb, Cs) possess a unique band structure with van Hove singularities and Dirac dispersions, in which unusual…

nucl-ex2012

Medium modification of jet fragmentation in Au+Au collisions at sqrt(s_NN)=200 GeV measured in direct photon-hadron correlations

A. Adare, S. Afanasiev, C. Aidala +559

The jet fragmentation function is measured with direct photon-hadron correlations in p+p and Au+Au collisions at sqrt(s_NN)=200 GeV. The p_T of the photon is an excellent approxima…

nucl-ex2023

Measurements of second-harmonic Fourier coefficients from azimuthal anisotropies in , Au, Au, and HeAu collisions at GeV

N. J. Abdulameer, U. Acharya, A. Adare +389

Recently, the PHENIX Collaboration has published second- and third-harmonic Fourier coefficients and for midrapidity () charged hadrons in 0\%--5\% central $…

cond-mat.supr-con2008

Microwave Penetration Depth and Quasiparticle Conductivity in PrFeAsO_1-y Single Crystals : Evidence for a Full-Gap Superconductor

K. Hashimoto, T. Shibauchi, T. Kato +9

In-plane microwave penetration depth and quaiparticle conductivity at 28 GHz are measured in underdoped single crystals of the Fe-based superconductor PrFeAsO ($T…

cond-mat.supr-con2011

Nodeless vs nodal order parameters in LiFeAs and LiFeP superconductors

K. Hashimoto, S. Kasahara, R. Katsumata +7

High-precision measurements of magnetic penetration depth in clean single crystals of LiFeAs and LiFeP superconductors reveal contrasting low-energy quasiparticle excitations.…

hep-lat2004

Lattice QCD with two dynamical flavors of domain wall quarks

Y. Aoki, T. Blum, N. Christ +11

We present results from the first large-scale study of two flavor QCD using domain wall fermions (DWF), a chirally symmetric fermion formulation which has proven to be very effecti…

cond-mat.supr-con2022

Pure nematic quantum critical point accompanied by a superconducting dome

K. Ishida, Y. Onishi, M. Tsujii +8

When a symmetry-breaking phase of matter is suppressed to a quantum critical point (QCP) at absolute zero, quantum-mechanical fluctuations proliferate. Such fluctuations can lead t…

hep-ex2017

Cross section and transverse single-spin asymmetry of muons from open heavy-flavor decays in polarized + collisions at GeV

C. Aidala, N. N. Ajitanand, Y. Akiba +433

The cross section and transverse single-spin asymmetries of and from open heavy-flavor decays in polarized + collisions at GeV were measured…

cond-mat.supr-con2022

Chiral superconductivity in UTe2 probed by anisotropic low-energy excitations

K. Ishihara, M. Roppongi, M. Kobayashi +5

Chiral spin-triplet superconductivity is a topologically nontrivial pairing state with broken time-reversal symmetry, which can host Majorana quasiparticles. The recently discovere…

hep-lat2006

First results from 2+1-Flavor Domain Wall QCD: Mass Spectrum, Topology Change and Chiral Symmetry with

D. J. Antonio, T. Blum, K. C. Bowler +23

We present results for the static interquark potential, light meson and baryon masses, and light pseudoscalar meson decay constants obtained from simulations of domain wall QCD wit…

nucl-ex2012

J/psi suppression at forward rapidity in Au+Au collisions at sqrt(s_NN)=39 and 62.4 GeV

A. Adare, C. Aidala, N. N. Ajitanand +361

We present measurements of the J/psi invariant yields in sqrt(s_NN)=39 and 62.4 GeV Au+Au collisions at forward rapidity (1.2<|y|<2.2). Invariant yields are presented as a function…

cond-mat.str-el2014

Collective excitation of a short-range charge ordering in -$\mbox{(BEDT-TTF)}_2\mbox{CsZn(SCN)}_4$

K. Hashimoto, S. C. Zhan, R. Kobayashi +5

We find a characteristic low-energy peak structure located in the range of 100-300 cm in the optical conductivity spectra of a quasi-two-dimensional organic compound with a…

nucl-ex2016

Single electron yields from semileptonic charm and bottom hadron decays in AuAu collisions at GeV

A. Adare, C. Aidala, N. N. Ajitanand +429

The PHENIX Collaboration at the Relativistic Heavy Ion Collider has measured open heavy-flavor production in minimum bias AuAu collisions at GeV via the y…

nucl-ex2022

Study of -meson production in Al, Au, Au, and HeAu collisions at GeV

U. Acharya, A. Adare, C. Aidala +367

Small nuclear collisions are mainly sensitive to cold-nuclear-matter effects; however, the collective behavior observed in these collisions shows a hint of hot-nuclear-matter effec…

nucl-ex2025

Measurements at forward rapidity of elliptic flow of charged hadrons and open-heavy-flavor muons in AuAu collisions at 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…

cond-mat.str-el2025

Magnetothermal transport in ultraclean single crystals of Kitaev magnet -RuCl

Y. Xing, R. Namba, K. Imamura +7

The layered honeycomb magnet -RuCl has emerged as a promising candidate for realizing a Kitaev quantum spin liquid. Previous studies have reported oscillation-like anomalie…

nucl-ex2024

Charm- and Bottom-Quark Production in AuAu Collisions at = 200 GeV

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +342

The invariant yield of electrons from open-heavy-flavor decays for GeV/ at midrapidity in AuAu collisions at = 200 GeV has been measur…

cond-mat.mes-hall2023

Synthesizing resistance plateau at the first Landau level confined in a quantum point contact

M. H. Fauzi, K. Nakagawara, K. Hashimoto +2

A comprehensive understanding of quantum Hall edge transmission, especially the hole-conjugate of a Laughlin state such as a state, is critical for advancing fundamental quan…

cond-mat.supr-con2009

Superconducting Gap Structure of LaFePO Studied by Thermal Conductivity

M. Yamashita, N. Nakata, Y. Senshu +6

The superconducting gap structure of LaFePO (K) is studied by thermal conductivity () at low temperatures in fields parallel and perpendicular to the c axis. A cl…

cond-mat.supr-con2010

Evidence for superconducting gap nodes in the zone-centered hole bands of KFe2As2 from magnetic penetration-depth measurements

K. Hashimoto, A. Serafin, S. Tonegawa +13

Among the iron-based pnictide superconductors the material KFeAs is unusual in that its Fermi surface does not consist of quasi-nested electron and hole pockets. Here we re…

physics.flu-dyn2012

Dual-camera system for high-speed imaging in particle image velocimetry

K. Hashimoto, A. Hori, T. Hara +2

Particle image velocimetry is an important technique in experimental fluid mechanics, for which it has been essential to use a specialized high-speed camera. However, the high spee…

math.OC2016

Self-triggered Model Predictive Control for Continuous-Time Systems: A Multiple Discretizations Approach

K. Hashimoto, S. Adachi, D. V. Dimarogonas

In this paper, we propose a new self-triggered formulation of Model Predictive Control for continuous-time linear networked control systems. Our control approach, which aims at red…

nucl-ex2016

Transverse energy production and charged-particle multiplicity at midrapidity in various systems from to 200 GeV

A. Adare, S. Afanasiev, C. Aidala +702

Measurements of midrapidity charged particle multiplicity distributions, , and midrapidity transverse-energy distributions, , are presented for a variety…

hep-ex2020

Measurement of at forward and backward rapidity in +, l, u, and He+Au collisions at

U. A. Acharya, A. Adare, C. Aidala +358

Charmonium is a valuable probe in heavy-ion collisions to study the properties of the quark gluon plasma, and is also an interesting probe in small collision systems to study cold…

cond-mat.supr-con2023

Anisotropic Enhancement of Lower Critical Field in Ultraclean Crystals of Spin-Triplet Superconductor UTe2

K. Ishihara, M. Kobayashi, K. Imamura +7

The paramagnetic spin-triplet superconductor UTe has attracted significant attention because of its exotic superconducting properties including an extremely high upper critical…

cond-mat.mes-hall2012

Robust Nodal Structure of Landau Level Wave Functions Revealed by Fourier Transform Scanning Tunneling Spectroscopy

K. Hashimoto, T. Champel, S. Florens +6

Scanning tunneling spectroscopy is used to study the real-space local density of states (LDOS) of a two-dimensional electron system in magnetic field, in particular within higher L…

cond-mat.str-el2012

Cyclotron Resonance in the Hidden-Order Phase of URu2Si2

S. Tonegawa, K. Hashimoto, K. Ikada +9

We report the first observation of cyclotron resonance in the hidden-order phase of ultra-clean URuSi crystals, which allows the full determination of angle-dependent elect…

nucl-ex2024

Centrality dependence of Lévy-stable two-pion Bose-Einstein correlations in GeV AuAu collisions

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +394

The PHENIX experiment measured the centrality dependence of two-pion Bose-Einstein correlation functions in ~GeV AuAu collisions at the Relativistic Heavy…

cond-mat.str-el2025

Impact of tiny Fermi pockets with extremely high mobility on the Hall anomaly in the kagome metal CsVSb

S. Liu, M. Roppongi, M. Kimata +8

The kagome metal CsVSb exhibits an unusual charge-density-wave (CDW) order, where the emergence of loop current order that breaks time-reversal symmetry (TRS) has been prop…

cond-mat.supr-con2024

Lifting of gap nodes by disorder in ultranodal superconductor candidate FeSe1-xSx

T. Nagashima, K. Ishihara, K. Imamura +8

The observation of time-reversal symmetry breaking and large residual density of states in tetragonal FeSeS suggests a novel type of ultranodal superconducting state wi…

nucl-ex2016

Scaling properties of fractional momentum loss of high-pT hadrons in nucleus-nucleus collisions at from 62.4 GeV to 2.76 TeV

A. Adare, S. Afanasiev, C. Aidala +627

Measurements of the fractional momentum loss () of high-transverse-momentum-identified hadrons in heavy ion collisions are presented. Using in A…

physics.flu-dyn2011

Statistical mechanics and large-scale velocity fluctuations of turbulence

H. Mouri, A. Hori, Y. Kawashima +1

Turbulence exhibits significant velocity fluctuations even if the scale is much larger than the scale of the energy supply. Since any spatial correlation is negligible, these large…

cond-mat.str-el2024

Two-step growth of high-quality single crystals of the Kitaev magnet -RuCl

R. Namba, K. Imamura, R. Ishioka +14

The layered honeycomb magnet -RuCl is the most promising candidate for a Kitaev quantum spin liquid (KQSL) that can host charge-neutral Majorana fermions. Recent studies ha…

hep-ex2020

Measurement of jet-medium interactions via direct photon-hadron correlations in AuAu and Au collisions at GeV

U. Acharya, A. Adare, S. Afanasiev +574

We present direct photon-hadron correlations in 200 GeV/A AuAu, Au and collisions, for direct photon from 5--12 GeV/, collected by the PHENIX Collaborat…

cond-mat.supr-con2013

Anomalous superfluid density in quantum critical superconductors

K. Hashimoto, Y. Mizukami, R. Katsumata +10

When a second-order magnetic phase transition is tuned to zero temperature by a non-thermal parameter, quantum fluctuations are critically enhanced, often leading to the emergence…

cond-mat.mes-hall2008

The Quantum Hall Transition in Real Space: From Localized to Extended States

K. Hashimoto, C. Sohrmann, J. Wiebe +6

Using scanning tunneling spectroscopy in ultra-high vacuum at low temperature (T = 0.3 K) and high magnetic fields (B < 12 T), we directly probe electronic wave functions across an…

nucl-ex2025

Low-mass vector-meson production at forward rapidity in and AuAu collisions at ~GeV

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +352

The PHENIX experiment at the Relativistic Heavy Ion Collider has measured low-mass vector-meson ( and ) production through the dimuon decay channel at forward rapidity $…

hep-ex2015

Inclusive cross section and double-helicity asymmetry for production at midrapidity in collisions at GeV

A. Adare, C. Aidala, N. N. Ajitanand +410

PHENIX measurements are presented for the cross section and double-helicity asymmetry () in inclusive production at midrapidity from collisions at $\sqrt{s…

nucl-ex2012

sPHENIX: An Upgrade Concept from the PHENIX Collaboration

A. Adare, C. Aidala, N. N. Ajitanand +423

The PHENIX collaboration presents a concept for a major upgrade to the PHENIX detector at the Relativistic Heavy Ion Collider (RHIC). This upgrade, referred to as sPHENIX, brings e…

nucl-ex2015

Systematic study of charged-pion and kaon femtoscopy in AuAu collisions at =200 GeV

A. Adare, S. Afanasiev, C. Aidala +496

We present a systematic study of charged pion and kaon interferometry in AuAu collisions at =200 GeV. The kaon mean source radii are found to be larger than pi…

nucl-ex2016

Measurements of directed, elliptic, and triangular flow in CuAu collisions at GeV

A. Adare, C. Aidala, N. N. Ajitanand +401

Measurements of anisotropic flow Fourier coefficients () for inclusive charged particles and identified hadrons , , , and produced at midrapidi…

nucl-ex2015

Centrality dependence of low-momentum direct-photon production in AuAu collisions at GeV

A. Adare, S. Afanasiev, C. Aidala +477

The PHENIX experiment at RHIC has measured the centrality dependence of the direct photon yield from AuAu collisions at GeV down to GeV/. Pho…

cond-mat.supr-con2021

Thermodynamic Signatures of Diagonal Nematicity in RbFeAs Superconductor

Y. Mizukami, O. Tanaka, K. Ishida +10

Electronic nematic states with broken rotational symmetry often emerge in correlated materials. In most iron-based superconductors, the nematic anisotropy is oriented in the Fe-Fe…

nucl-ex2018

Pseudorapidity dependence of particle production and elliptic flow in asymmetric nuclear collisions of Al, Au, Au, and HeAu at GeV

A. Adare, C. Aidala, N. N. Ajitanand +364

Asymmetric nuclear collisions of Al, Au, Au, and HeAu at GeV provide an excellent laboratory for understanding particle production…

cond-mat.str-el2015

Emergence of charge degrees of freedom under high pressure in an organic dimer-Mott insulator $β^{\prime}$-(BEDT-TTF)ICl

K. Hashimoto, R. Kobayashi, H. Okamura +7

To elucidate the pressure evolution of the electronic structure in an antiferromagnetic dimer-Mott (DM) insulator $β^{\prime}$-(BEDT-TTF)ICl, which exhibits superconductiv…

hep-ex2017

Measurements of at forward rapidity in collisions at GeV

C. Aidala, N. N. Ajitanand, Y. Akiba +427

We report the first measurement of the fraction of mesons coming from -meson decay () in + collisions at 510 GeV. The measuremen…

nucl-ex2012

Upsilon (1S+2S+3S) production in d+Au and p+p collisions at sqrt(s_NN)=200 GeV and cold-nuclear matter effects

A. Adare, S. Afanasiev, C. Aidala +491

The three Upsilon states, Upsilon(1S+2S+3S), are measured in d+Au and p+p collisions at sqrt(s_NN)=200 GeV and rapidities 1.2<|y|<2.2 by the PHENIX experiment at the Relativistic H…

hep-ex2025

Transverse single-spin asymmetry of forward mesons in collisions at GeV

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +380

Utilizing the 2012 transversely polarized proton data from the Relativistic Heavy Ion Collider at Brookhaven National Laboratory, the forward -meson transverse single-spin asym…

cond-mat.str-el2025

Reexamination of the charge-ordered dimer pattern in the spinel compound CuIr2S4 using single-crystal synchrotron x-ray diffraction

T. Ohashi, N. Katayama, K. Kojima +11

We have re-investigated the crystal structure of a spinel type CuIr2S4 at low temperatures using a single-crystal in a synchrotron radiation x-ray diffraction experiment. The cryst…

nucl-ex2019

Multi-particle azimuthal correlations for extracting event-by-event elliptic and triangular flow in AuAu collisions at GeV

A. Adare, C. Aidala, N. N. Ajitanand +319

We present measurements of elliptic and triangular azimuthal anisotropy of charged particles detected at forward rapidity in AuAu collisions at

nucl-ex2015

Dielectron production in AuAu collisions at =200 GeV

A. Adare, C. Aidala, N. N. Ajitanand +444

We present measurements of production at midrapidity in AuAu collisions at = 200 GeV. The invariant yield is studied within the PHENIX detector accep…

nucl-ex2026

Elliptic flow of mesons in CuAu collisions at GeV and UU at GeV

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +386

The second-order azimuthal anisotropy coefficients () of neutral mesons () have been measured as a function of the transverse momentum () and centrality of Cu

cond-mat.str-el2009

Possible Phase Transition Deep Inside the Hidden Order Phase of Ultraclean URu2Si2

H. Shishido, K. Hashimoto, T. Shibauchi +10

To elucidate the underlying nature of the hidden order (HO) state in heavy-fermion compound URu2Si2, we measure electrical transport properties of ultraclean crystals in a high fie…

cond-mat.supr-con2011

Nodal gap structure of BaFe_2(As_{1-x}P_x)_2 from angle-resolved thermal conductivity in a magnetic field

M. Yamashita, Y. Senshu, T. Shibauchi +8

The structure of the superconducting order parameter in the iron-pnictide superconductor BaFe(AsP) (\,K) with line nodes is studied by the angle-r…

cond-mat.supr-con2025

Topology meets time-reversal symmetry breaking in FeSeTe superconductor

M. Roppongi, Y. Cai, K. Ogawa +21

Time-reversal symmetry breaking (TRSB) in magnetic topological insulators induces a Dirac gap in the topological surface state (TSS), leading to exotic phenomena such as the quantu…

nucl-ex2023

Low- direct-photon production in AuAu collisions at and 62.4 GeV

N. J. Abdulameer, U. Acharya, A. Adare +431

The measurement of direct photons from AuAu collisions at and 62.4 GeV in the transverse-momentum range Gev/ is presented by the PHENIX coll…

hep-ex2022

Kinematic dependence of azimuthal anisotropies in Au, Au, He+Au at = 200 GeV

U. A. Acharya, A. Adare, C. Aidala +378

There is strong evidence for the formation of small droplets of quark-gluon plasma in He+Au collisions at the Relativistic Heavy Ion Collider (RHIC) and in +/Pb col…

cond-mat.supr-con2021

Tuning the Parity Mixing of Singlet-Septet Pairing in a Half-Heusler Superconductor

K. Ishihara, T. Takenaka, Y. Miao +12

In superconductors, electrons with spin form Cooper pairs whose spin structure is usually singlet () or triplet (). When the electronic structure near the F…

nlin.CD2000

Heteroclinic Chaos, Chaotic Itinerancy and Neutral Attractors in Symmetrical Replicator Equations with Mutations

K. Hashimoto, T. Ikegami

A replicator equation with mutation processes is numerically studied. Without any mutations, two characteristics of the replicator dynamics are known: an exponential divergence of…

nucl-ex2013

Cold-nuclear-matter effects on heavy-quark production at forward and backward rapidity in d+Au collisions at sqrt(s_NN)=200 GeV

A. Adare, C. Aidala, N. N. Ajitanand +421

The PHENIX experiment has measured open heavy-flavor production via semileptonic decay muons over the transverse momentum range 1 < pT < 6 GeV/c at forward and backward rapidity (1…

hep-ex2025

Cross sections of mesons in collisions at forward rapidity at GeV and central rapidity at GeV

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +497

We present the first measurements of the forward and midrapidity -meson cross sections from collisions at and ~GeV, respectively. We also report t…

nucl-ex2020

Evolution of pi^0 suppression in Au+Au collisions from sqrt(s_NN) = 39 to 200 GeV

A. Adare, S. Afanasiev, C. Aidala +367

Neutral-pion, pi^0, spectra were measured at midrapidity (|y|<0.35) in Au+Au collisions at sqrt(s_NN) = 39 and 62.4 GeV and compared to earlier measurements at 200 GeV in the 1<p_T…

cond-mat.mes-hall2024

Spin dynamics of a quasi-one-dimensional electron in the quantum limit

M. H. Fauzi, M. Takahashi, T. Aono +2

We study electron spin dynamics whose movement is restricted to the lowest one dimensional subband channel (), through nuclear spin relaxation rate measurement ($1/T…

cond-mat.mes-hall2021

Resistively-detected NMR lineshapes in a local filling quantum Hall breakdown

M. H. Fauzi, T. Sobue, A. Noorhidayati +3

Resistively-detected NMR (RDNMR) is a unique characterization method enabling highly-sensitive NMR detection for a single quantum nanostructure, such as a quantum point contact (QP…

cond-mat.supr-con2014

Disorder-induced topological change of the superconducting gap structure in iron pnictides

Y. Mizukami, M. Konczykowski, Y. Kawamoto +9

In superconductors with unconventional pairing mechanisms, the energy gap in the excitation spectrum often has nodes, which allow quasiparticle excitations at low energies. In many…

nucl-ex2017

Measurement of the relative yields of to mesons produced at forward and backward rapidity in , Al, Au, and HeAu collisions at GeV

A. Adare, C. Aidala, N. N. Ajitanand +358

The PHENIX Collaboration has measured the ratio of the yields of to mesons produced in , Al, Au, and HeAu collisions at $\sqrt{s_{_{…

nucl-ex2016

meson production in the forward/backward rapidity region in CuAu collisions at GeV

A. Adare, C. Aidala, N. N. Ajitanand +509

The PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC) has measured meson production and its nuclear modification in asymmetric CuAu heavy-ion collisions at $\…

cond-mat.str-el2013

Cyclotron resonance study of quasiparticle mass and scattering rate in the hidden-order and superconducting phases of URu2Si2

S. Tonegawa, K. Hashimoto, K. Ikada +10

The observation of cyclotron resonance in ultra-clean crystals of URu2Si2 [S. Tonegawa et al., PRL 109, 036401 (2012)] provides another route besides quantum oscillations to the de…

nucl-ex2023

Measurement of -meson production in CuAu at GeV and UU at GeV

N. J. Abdulameer, U. Acharya, C. Aidala +408

The PHENIX experiment reports systematic measurements at the Relativistic Heavy Ion Collider of -meson production in asymmetric CuAu collisions at =200 GeV…

nucl-ex2025

Azimuthal anisotropy of direct photons in AuAu collisions at GeV

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +322

The PHENIX experiment at the Relativistic Heavy Ion Collider measured the second Fourier component of the direct-photon azimuthal anisotropy at midrapidity in AuAu collisi…

cond-mat.str-el2024

Defect-Induced Low-Energy Majorana Excitations in the Kitaev Magnet -RuCl

K. Imamura, Y. Mizukami, O. Tanaka +8

The excitations in the Kitaev spin liquid (KSL) can be described by Majorana fermions, which have characteristic field dependence of bulk gap and topological edge modes. In the hig…

nucl-ex2015

Measurement of long-range angular correlation and quadrupole anisotropy of pions and (anti)protons in central Au collisions at =200 GeV

A. Adare, C. Aidala, N. N. Ajitanand +421

We present azimuthal angular correlations between charged hadrons and energy deposited in calorimeter towers in central Au and minimum bias collisions at $\sqrt{s_{…

cond-mat.supr-con2013

Inter-plane resistivity of isovalent doped BaFe(AsP)

M. A. Tanatar, K. Hashimoto, S. Kasahara +3

Temperature-dependent inter-plane resistivity, , was measured for the iron-based superconductor BaFe(AsP) over a broad isoelectron phosphorus substitut…

nucl-ex2018

Measurements of mass-dependent azimuthal anisotropy in central Au, Au, and HeAu collisions at GeV

A. Adare, C. Aidala, N. N. Ajitanand +349

We present measurements of the transverse-momentum dependence of elliptic flow for identified pions and (anti)protons at midrapidity (), in 0%--5% central Au…

nucl-ex2015

Heavy-quark production and elliptic flow in AuAu collisions at GeV

A. Adare, C. Aidala, N. N. Ajitanand +366

We present measurements of electrons and positrons from the semileptonic decays of heavy-flavor hadrons at midrapidity ( 0.35) in AuAu collisions at $\sqrt{s_{_{NN}}}=62.4…

nucl-ex2015

An Upgrade Proposal from the PHENIX Collaboration

A. Adare, S. Afanasiev, C. Aidala +473

In this document the PHENIX collaboration proposes a major upgrade to the PHENIX detector at the Relativistic Heavy Ion Collider. This upgrade, sPHENIX, enables an extremely rich j…

cond-mat.supr-con2010

Evolution from Non-Fermi to Fermi Liquid Transport Properties by Isovalent Doping in BaFe2(As1-xPx)2 Superconductors

S. Kasahara, T. Shibauchi, K. Hashimoto +8

The normal-state charge transport is studied systematically in high-quality single crystals of BaFe(AsP) (). By substituting isovalent P for…

cond-mat.supr-con2012

A Sharp Peak of the Zero-Temperature Penetration Depth at Optimal Composition in BaFe2(As1-xPx)2

K. Hashimoto, K. Cho, T. Shibauchi +14

In a superconductor, the ratio of the carrier density, , to their effective mass, , is a fundamental property directly reflecting the length scale of the superfluid flow, t…

cond-mat.str-el2017

Quantum-disordered state of magnetic and electric dipoles in a hydrogen-bonded Mott system

M. Shimozawa, K. Hashimoto, A. Ueda +12

Strongly enhanced quantum fluctuations often lead to a rich variety of quantum-disordered states. A representative case is liquid helium, in which zero-point vibrations of the heli…

nucl-ex2022

Systematic study of nuclear effects in Al, Au, Au, and HeAu collisions at GeV using production

U. A. Acharya, A. Adare, C. Aidala +550

The PHENIX collaboration presents a systematic study of production from , Al, Au, Au, and HeAu collisions at GeV.…

hep-ex2020

Production of and mesons in UU collisions at GeV

U. Acharya, C. Aidala, N. N. Ajitanand +399

The PHENIX experiment at the Relativistic Heavy Ion Collider measured and mesons at midrapidity in UU collisions at GeV in a wide transverse m…

cond-mat.str-el2024

Imaging quantum interference in a monolayer Kitaev quantum spin liquid candidate

Y. Kohsaka, S. Akutagawa, S. Omachi +16

Single atomic defects are prominent windows to look into host quantum states because collective responses from the host states emerge as localized states around the defects. Friede…

nucl-ex2016

Azimuthally anisotropic emission of low-momentum direct photons in AuAu collisions at GeV

A. Adare, S. Afanasiev, C. Aidala +549

The PHENIX experiment at the Relativistic Heavy Ion Collider has measured 2nd and 3rd order Fourier coefficients of the azimuthal distributions of direct photons emitted at midrapi…

nucl-ex2024

Identified charged-hadron production in Al, HeAu, and CuAu collisions at GeV and in UU collisions at GeV

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +477

The PHENIX experiment has performed a systematic study of identified charged-hadron (, , , ) production at midrapidity in Al, HeAu, CuAu…

cond-mat.supr-con2023

Two superconducting states with broken time-reversal symmetry in FeSe1-xSx

K. Matsuura, M. Roppongi, M. Qiu +25

Iron-chalcogenide superconductors FeSeS possess unique electronic properties such as non-magnetic nematic order and its quantum critical point. The nature of supercondu…

nucl-ex2015

Measurements of elliptic and triangular flow in high-multiplicity HeAu collisions at GeV

A. Adare, S. Afanasiev, C. Aidala +627

We present the first measurement of elliptic () and triangular () flow in high-multiplicity HeAu collisions at GeV. Two-particle correlati…

cond-mat.mes-hall2019

Probing breakdown of topological protection: Filling-factor-dependent evolution of robust quantum Hall incompressible phases

T. Tomimatsu, K. Hashimoto, S. Taninaka +2

The integer quantum Hall (QH) effects characterized by topologically quantized and nondissipative transport are caused by an electrically insulating incompressible phase that preve…

nucl-ex2024

Nonprompt direct-photon production in AuAu collisions at GeV

U. A. Acharya, A. Adare, C. Aidala +332

The measurement of the direct-photon spectrum from AuAu collisions at GeV is presented by the PHENIX collaboration using the external-photon-conversion te…

cond-mat.supr-con2007

Effects of Rattling Phonons on the Quasiparticle Excitation and Dynamics in the Superconducting -Pyrochlore KOsO

Y. Shimono, T. Shibauchi, Y. Kasahara +6

Microwave penetration depth and surface resistance at 27 GHz are measured in high quality crystals of KOsO. Firm evidence for fully-gapped superconductivity is provide…

hep-ex2025

Measurement of inclusive jet cross section and substructure in collisions at GeV

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +443

The jet cross-section and jet-substructure observables in collisions at GeV were measured by the PHENIX Collaboration at the Relativistic Heavy Ion Collide…