F. Bellaiche

ORCID: 0000-0002-6315-1434
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About
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Research Areas
  • High-Energy Particle Collisions Research
  • Particle physics theoretical and experimental studies
  • Quantum Chromodynamics and Particle Interactions
  • Nuclear reactor physics and engineering
  • Superconducting Materials and Applications
  • Dark Matter and Cosmic Phenomena
  • Theoretical and Computational Physics
  • Physics of Superconductivity and Magnetism
  • Rare-earth and actinide compounds
  • Stochastic processes and statistical mechanics
  • Nuclear physics research studies
  • Cold Atom Physics and Bose-Einstein Condensates
  • Spectroscopy and Quantum Chemical Studies
  • Molten salt chemistry and electrochemical processes
  • Advanced Materials Characterization Techniques
  • Radioactive Decay and Measurement Techniques
  • Particle Detector Development and Performance

Abilene Christian University
2005

Oak Ridge National Laboratory
2001-2004

Centre de Gestion Scientifique
1999-2001

Centre National de la Recherche Scientifique
1996-2000

Université Claude Bernard Lyon 1
1996-2000

Institut National de Physique Nucléaire et de Physique des Particules
1996-2000

Institute of Nuclear Physics of Lyon
1997

Lyon College
1997

Centre de Calcul de l’Institut National de Physique Nucléaire et de Physique des Particules
1996

Transverse momentum spectra for charged hadrons and neutral pions in the range 1 GeV/c<p(T)<5 GeV/c have been measured by PHENIX experiment at RHIC Au+Au collisions root square[s(NN)] = 130 GeV. At high p(T) from peripheral nuclear are consistent with scaling p+p average number of binary nucleon-nucleon collisions. The central significantly suppressed when compared to binary-scaled expectation, also similarly collisions, indicating a novel nuclear-medium effect energies.

10.1103/physrevlett.88.022301 article EN Physical Review Letters 2001-12-21

Identified ${\ensuremath{\pi}}^{+/\ensuremath{-}}$, ${K}^{+/\ensuremath{-}}$, $p$, and $\overline{p}$ transverse momentum spectra at midrapidity in $\sqrt{{s}_{\mathrm{NN}}}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}130\phantom{\rule{0ex}{0ex}}\mathrm{GeV}\phantom{\rule{0ex}{0ex}}\mathrm{Au}+\mathrm{Au}$ collisions were measured by the PHENIX experiment RHIC as a function of collision centrality. Average momenta increase with number participating nucleons similar way for all particle...

10.1103/physrevlett.88.242301 article EN Physical Review Letters 2002-05-28

We present results for the charged-particle multiplicity distribution at midrapidity in Au-Au collisions square root of [s(NN)] = 130 GeV measured with PHENIX detector RHIC. For 5% most central we find dN(ch)/d eta(vertical line eta 0) 622+/-1(stat)+/-41(syst). The results, analyzed as a function centrality, show steady rise particle density per participating nucleon centrality.

10.1103/physrevlett.86.3500 article EN Physical Review Letters 2001-04-16

Two-particle azimuthal correlation functions are presented for charged hadrons produced in Au+Au collisions at the Relativistic Heavy Ion Collider (sqrt [s(NN)]=130 GeV). The measurements permit determination of elliptic flow without event-by-event estimation reaction plane. extracted values (v2) show significant sensitivity to both collision centrality and transverse momenta emitted hadrons, suggesting rapid thermalization relatively strong velocity fields. When scaled by eccentricity zone...

10.1103/physrevlett.89.212301 article EN Physical Review Letters 2002-10-30

Transverse momentum spectra and yields of hadrons are measured by the PHENIX collaboration in $\text{Au}+\text{Au}$ collisions at $\sqrt{{s}_{NN}}=130\phantom{\rule{0.3em}{0ex}}\text{GeV}$ Relativistic Heavy Ion Collider. The time-of-flight resolution allows identification pions to transverse momenta $2\phantom{\rule{0.3em}{0ex}}\text{GeV}∕c$ protons antiprotons $4\phantom{\rule{0.3em}{0ex}}\text{GeV}∕c$. yield rises approximately linearly with number nucleons participating collision, while...

10.1103/physrevc.69.024904 article EN Physical Review C 2004-02-17

Transverse momentum spectra of electrons from Au+Au collisions at square root[s(NN)] = 130 GeV have been measured midrapidity by the PHENIX experiment Relativistic Heavy Ion Collider. The show an excess above background photon conversions and light hadron decays. electron signal is consistent with that expected semileptonic decays charm. yield dN(e)/dy for p(T) > 0.8 GeV/c 0.025+/-0.004(stat)+/-0.010(syst) in central collisions, corresponding charm cross section 380+/-60(stat)+/-200(syst)...

10.1103/physrevlett.88.192303 article EN Physical Review Letters 2002-04-30

Two-pion correlations in square root[s(NN)] = 130 GeV Au+Au collisions at RHIC have been measured over a broad range of pair transverse momentum k(T) by the PHENIX experiment RHIC. The dependent radii are similar to results from heavy-ion 4.1, 4.9, and 17.3 GeV, whereas longitudinal radius increases monotonically with beam energy. ratio outwards sidewards (R(out)/R(side)) is consistent unity independent k(T).

10.1103/physrevlett.88.192302 article EN Physical Review Letters 2002-04-30

The first measurement of energy produced transverse to the beam direction at Relativistic Heavy-Ion Collider Brookhaven National Laboratory is presented. midrapidity density per participating nucleon rises steadily with number participants, closely paralleling rise in charged-particle density, such that <E(T)>/<N(ch)> remains relatively constant as a function centrality. calculated via Bjorken's prescription for 2% most central Au+Au collisions square root[s(NN)] = 130 GeV least epsilon(Bj)...

10.1103/physrevlett.87.052301 article EN Physical Review Letters 2001-07-17

We present results on the measurement of $\ensuremath{\Lambda}$ and $\overline{\ensuremath{\Lambda}}$ production in $\mathrm{A}\mathrm{u}+\mathrm{A}\mathrm{u}$ collisions at $\sqrt{{s}_{NN}}=130\text{ }\text{ }\mathrm{G}\mathrm{e}\mathrm{V}$ with PHENIX detector Relativistic Heavy Ion Collider. The transverse momentum spectra were measured for minimum bias 5% most central events. $\overline{\ensuremath{\Lambda}}/\ensuremath{\Lambda}$ ratios are constant as a function ${p}_{T}$ number...

10.1103/physrevlett.89.092302 article EN Physical Review Letters 2002-08-12

Distributions of event-by-event fluctuations the mean transverse momentum and energy near mid-rapidity have been measured in Au+Au collisions at $\sqrt{{s}_{\mathrm{NN}}}=130 \mathrm{GeV}$ Relativistic Heavy-Ion Collider. By comparing distributions to what is expected for statistically independent particle emission, magnitude nonstatistical determined be consistent with zero. Also, no significant nonrandom are observed. constructing a fluctuation model two event classes that preserve...

10.1103/physrevc.66.024901 article EN Physical Review C 2002-08-02

Data from Au + interactions at sqrt[s(NN)]=130 GeV, obtained with the PHENIX detector Relativistic Heavy-Ion Collider, are used to investigate local net charge fluctuations among particles produced near midrapidity. According recent suggestions, such may carry information quark-gluon plasma. This analysis shows that dominated by a stochastic distribution of particles, but also sensitive other effects, like global conservation and resonance decays.

10.1103/physrevlett.89.082301 article EN Physical Review Letters 2002-08-05

10.1016/s0168-9002(97)00748-1 article EN Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 1997-10-01
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