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19912026
Showing 2005 · nucl-exShow all

21 papers · 2 filters

nucl-ex2005★ 123 cited

Evidence for transfer followed by breakup in 7Li + 65Cu

A. Shrivastava, A. Navin, N. Keeley +6

The observation of a large cross-section for the alpha + d channel compared to breakup into the alpha + t channel from an exclusive measurement for the 7Li+65Cu system at 25 MeV is…

nucl-ex2005★ 33 cited

PHENIX results on jpsi production in Au+Au and Cu+Cu collisions at =200 GeV

H. Pereira Da Costa

Heavy quarkonia production is predicted to be sensitive to the formation of the quark gluon plasma in relativistic heavy ion collisions via competing mechanisms such as color scree…

nucl-ex2005★ 305 cited

Nuclear Modification of Electron Spectra and Implications for Heavy Quark Energy Loss in Au+Au Collisions at sqrt(s_NN)=200 GeV

PHENIX Collaboration, S. S. Adler

The PHENIX experiment has measured mid-rapidity transverse momentum spectra (0.4 < p_T < 5.0 GeV/c) of electrons as a function of centrality in Au+Au collisions at sqrt(s_NN)=200 G…

nucl-ex2005★ 38 cited

Electron Scattering From High-Momentum Neutrons in Deuterium

A. V. Klimenko, S. E. Kuhn

We report results from an experiment measuring the semi-inclusive reaction where the proton is moving at a large angle relative to the momentum transfer. If we a…

nucl-ex2005★ 60 cited

Jet Structure from Dihadron Correlations in d+Au collisions at sqrt(s_NN) = 200 GeV

PHENIX Collaboration, S. S. Adler

Dihadron correlations at high transverse momentum in d+Au collisions at sqrt(s_NN) = 200 GeV at midrapidity are measured by the PHENIX experiment at the Relativistic Heavy Ion Coll…

nucl-ex2005★ 285 cited

Differential Cross Sections for gamma + p --> K+ + Y for Lambda and Sigma0 Hyperons

R. Bradford, R. A. Schumacher, J. W. C. McNabb +1

High-statistics cross sections for the reactions gamma + p --> K^+ + Lambda and gamma + p --> K^+ + Sigma^0 have been measured using CLAS at Jefferson Lab for center-of-mass energi…

nucl-ex2005★ 22 cited

Estimate of average freeze-out volume in multifragmentation events

S. Piantelli, N. Le Neindre, E. Bonnet +20

An estimate of the average freeze-out volume for multifragmentation events is presented. Values of volumes are obtained by means of a simulation using the experimental charged prod…

nucl-ex2005★ 37 cited

Recoil Polarization Measurements for Neutral Pion Electroproduction at Q^2=1 (GeV/c)^2 Near the Delta Resonance

J. J. Kelly

We measured angular distributions of differential cross section, beam analyzing power, and recoil polarization for neutral pion electroproduction at Q^2 = 1.0 (GeV/c)^2 in 10 bins…

nucl-ex2005★ 31 cited

Multifragmentation of very heavy nuclear systems (III): fragment velocity correlations and event topology at freeze-out

G. Tãbãcaru, M. -F. Rivet, B. Borderie +6

Kinetic energy spectra and fragment velocity correlations, simulated by means of stochastic mean-field calculations, are successfully confronted with experimental data for single m…

nucl-ex2005★ 278 cited

Measurement of 2- and 3-Nucleon Short Range Correlation Probabilities in Nuclei

K. S. Egiyan, N. B. Dashyan, M. M. Sargsian +3

The ratios of inclusive electron scattering cross sections of He4, C12 and Fe56 to He3 have been measured at 1 < x_B < 3. At Q^2 > 1.4 GeV^2, the ratios exhibit two separate platea…

nucl-ex2005★ 54 cited

Measurement of identified pi^0 and inclusive photon v_2 and implication to the direct photon production in sqrt(s_NN) = 200 GeV Au+Au collisions

PHENIX Collaboration, S. S. Adler

The azimuthal distribution of identified pi^0 and inclusive photons has been measured in sqrt{s_{NN}} = 200 GeV Au+Au collisions with the PHENIX experiment at the Relativistic Heav…

nucl-ex2005

Incomplete fusion versus breakup competition with weakly bound projectiles

F. A. Souza, M. G. Munhoz, J. Takahashi +8

The importance of the breakup channel in the vicinity of the Coulomb barrier (1<Ec.m./Vb<2) is investigated for the medium weight 6Li+59Co system. Three-body final-state analysis o…

nucl-ex2005★ 113 cited

J/psi Production and Nuclear Effects for d+Au and p+p Collisions at sqrt(s_NN) = 200 GeV

PHENIX Collaboration, S. S. Adler

J/psi production in d+Au and p+p collisions at sqrt(s_NN) = 200 GeV has been measured by the PHENIX experiment at rapidities -2.2 < y < +2.4. The cross sections and nuclear depende…

nucl-ex2005★ 300 cited

Modifications to Di-Jet Hadron Pair Correlations in Au+Au Collisions at sqrt(s_NN) = 200 GeV

PHENIX Collaboration, S. S. Adler

Azimuthal correlations of high-pT charged hadron pairs from (di-)jet-fragmentation are studied at mid-rapidity in Au+Au collisions at vsNN=200 GeV. The distribution of jet-associat…

nucl-ex2005★ 153 cited

Parity-Violating Electron Scattering from 4He and the Strange Electric Form Factor of the Nucleon

The HAPPEX Collaboration

We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from ^4He at an average scattering angle <theta_lab> = 5.7 degrees and…

nucl-ex2005★ 46 cited

Q^2-Dependence of the Neutron Spin Structure Function g_2^n at Low Q^2

K. Kramer

We present the first measurement of the Q^2-dependence of the neutron spin structure function g_2^n at five kinematic points covering 0.57 (GeV/c)^2 <= Q^2 <= 1.34 (GeV/c)^2 at x~0…

nucl-ex2005★ 65 cited

Recoil Polarization for Delta Excitation in Pion Electroproduction

J. J. Kelly

We measured angular distributions of recoil-polarization response functions for neutral pion electroproduction for W=1.23 GeV at Q^2=1.0 (GeV/c)^2, obtaining 14 separated response…

nucl-ex2005★ 26 cited

First analysis of anisotropic flow with Lee--Yang zeroes

N. Bastid, ; J. -Y. Ollitrault, N. Borghini

We report on the first analysis of directed and elliptic flow with the new method of Lee--Yang zeroes. Experimental data are presented for Ru+Ru reactions at 1.69 AGeV measured wit…

nucl-ex2005★ 49 cited

Evaporation residues produced in spallation of 208Pb by protons at 500A MeV

L. Audouin, L. Tassan-Got, P. Armbruster +20

The production cross sections of fragmentation-evaporation residues in the reaction Pb+p at 500A MeV have been measured using the inverse-kinematics method and the FRS spectrometer…

nucl-ex2005★ 69 cited

Measurement of Single Electron Event Anisotropy in Au+Au Collisions at sqrt(s_NN) = 200 GeV

PHENIX Collaboration, S. S. Adler

The transverse momentum dependence of the azimuthal anisotropy parameter v_2, the second harmonic of the azimuthal distribution, for electrons at mid-rapidity (|eta| < 0.35) has be…

nucl-ex2005★ 381 cited

Proton elastic form factor ratios to = 3.5 GeV by polarization transfer

V. Punjabi, C. F. Perdrisat

The ratio of the proton elastic electromagnetic form factors, , was obtained by measuring and , the transverse and longitudinal recoil proton polar…