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Showing 2012 · nucl-exShow all

36 papers · 2 filters

nucl-ex2012★ 56 cited

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-ex2012★ 25 cited

Separated Structure Functions for Exclusive and Electroproduction at 5.5 GeV with CLAS

D. S. Carman, K. Park, B. A. Raue +1

We report measurements of the exclusive electroproduction of and final states from an unpolarized proton target using the CLAS detector at the Thomas Jefferson Nati…

nucl-ex2012★ 3 cited

Near Threshold Neutral Pion Electroproduction at High Momentum Transfers and Generalized Form Factors

P. Khetarpal, P. Stoler, I. G. Aznauryan +157

We report the measurement of near threshold neutral pion electroproduction cross sections and the extraction of the associated structure functions on the proton in the kinematic ra…

nucl-ex2012★ 7 cited

High-spin structure in K

P. -A. Söderström, F. Recchia, J. Nyberg +74

High-spin states of K have been populated in the fusion-evaporation reaction C(Si,np)K and studied by means of -ray spectroscopy techniques using one…

nucl-ex2012★ 30 cited

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…

nucl-ex2012★ 148 cited

Direct mass measurements of 19B, 22C, 29F, 31Ne, 34Na and other light exotic nuclei

L. Gaudefroy, W. Mittig, N. Orr +16

We report on direct time-of-flight based mass measurements of 16 light neutron-rich nuclei. These include the first determination of the masses of the Borromean drip-line nuclei $^…

nucl-ex2012★ 10 cited

Elliptic flow of J/ at forward rapidity in Pb-Pb collisions at 2.76 TeV with the ALICE experiment

Hongyan Yang

We present the elliptic flow of inclusive J/ measured in the channel at forward rapidity (), down to zero transverse momentum, in Pb-Pb collisions at $\s…

nucl-ex2012★ 16 cited

Primary gamma-ray spectra in 44Ti of astrophysical interest

A. C. Larsen, S. Goriely, A. Bürger +18

Primary gamma-ray spectra for a wide excitation-energy range have been extracted for 44Ti from particle-gamma coincidence data of the 46Ti(p,t gamma)44Ti reaction. These spectra re…

nucl-ex2012★ 36 cited

Inclusive cross section and single-transverse-spin asymmetry for very forward neutron production in polarized p+p collisions at sqrt(s)=200 GeV

A. Adare, S. Afanasiev, C. Aidala +379

The energy dependence of the single-transverse-spin asymmetry, A_N, and the cross section for neutron production at very forward angles were measured in the PHENIX experiment at RH…

nucl-ex2012★ 32 cited

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…

nucl-ex2012★ 88 cited

Cold-nuclear-matter effcts on heavy-quark production in d+Au collisions at sqrt(s_NN)=200 GeV

A. Adare, S. Afanasiev, C. Aidala +379

The PHENIX experiment has measured electrons and positrons at midrapidity from the decays of hadrons containing charm and bottom quarks produced in d+Au and p+p collisions at sqrt(…

nucl-ex2012★ 61 cited

Direct photon production in d+Au collisions at sqrt(s_NN)=200 GeV

A. Adare, S. S. Adler, S. Afanasiev +543

Direct photons have been measured in sqrt(s_NN)=200 GeV d+Au collisions at midrapidity. A wide p_T range is covered by measurements of nearly-real virtual photons (1<p_T<6 GeV/c) a…

nucl-ex2012★ 59 cited

New Measurements of the Transverse Beam Asymmetry for Elastic Electron Scattering from Selected Nuclei

The HAPPEX, PREX Collaborations, : +195

We have measured the beam-normal single-spin asymmetry in the elastic scattering of 1-3 GeV transversely polarized electrons from H and for the first time from He, $^…

nucl-ex2012★ 300 cited

Observation of sequential Upsilon suppression in PbPb collisions

CMS Collaboration

The suppression of the individual Upsilon(nS) states in PbPb collisions with respect to their yields in pp data has been measured. The PbPb and pp data sets used in the analysis co…

nucl-ex2012★ 22 cited

Measurement of the azimuthal anisotropy of neutral pions in PbPb collisions at sqrt(s(NN)) = 2.76 TeV

CMS Collaboration

First measurements of the azimuthal anisotropy of neutral pions produced in PbPb collisions at a center-of-mass energy of sqrt(s(NN)) = 2.76 TeV are presented. The amplitudes of th…

nucl-ex2012★ 149 cited

Neutral pion production with respect to centrality and reaction plane in Au+Au collisions at sqrt(s_NN)=200 GeV

A. Adare, S. Afanasiev, C. Aidala +380

The PHENIX experiment has measured the production of neutral pions in Au+Au collisions at sqrt(s_NN)=200 GeV. The new data offer a fourfold increase in recorded luminosity, providi…

nucl-ex2012★ 72 cited

Observation of large scissors resonance strength in actinides

M. Guttormsen, L. A. Bernstein, A. Bürger +8

The orbital M1-scissors resonance (SR) has been measured for the first time in the quasi-continuum of actinides. Particle-gamma coincidences are recorded with deuteron and 3He indu…

nucl-ex2012★ 39 cited

High-spin structures of five N=82 isotones: 136Xe, 137Cs, 138Ba, 139La, and 140Ce

A. Astier, M. -G. Porquet, Ts. Venkova +14

Five N=82 isotones have been produced in two fusion-fission reactions and their gamma-rays studied with the Euroball array. The high-spin states of 139La have been identified for t…

nucl-ex2012★ 21 cited

Deep exclusive electroproduction off the proton at CLAS

K. Park, M. Guidal, R. W. Gothe +153

The exclusive electroproduction of above the resonance region was studied using the Large Acceptance Spectrometer () at Jefferson Laboratory by scatte…

nucl-ex2012★ 111 cited

Measurement of Direct Photons in Au+Au Collisions at sqrt(s_NN) = 200 GeV

S. Afanasiev, C. Aidala, N. N. Ajitanand +343

We report the measurement of direct photons at midrapidity in Au+Au collisions at sqrt{s_NN} = 200 GeV. The direct photon signal was extracted for the transverse-momentum range of…

nucl-ex2012★ 55 cited

High-spin states with seniority v=4,4,6 in 119-126Sn

A. Astier, M. -G. Porquet, Ch. Theisen +13

The 119-126Sn nuclei have been produced as fission fragments in two reactions induced by heavy ions: 12C+238U at 90 MeV bombarding energy, 18O+208Pb at 85 MeV. Their level schemes…

nucl-ex2012★ 145 cited

Measurement of jet fragmentation into charged particles in pp and PbPb collisions at sqrt(s[NN]) = 2.76 TeV

CMS Collaboration

Jet fragmentation in pp and PbPb collisions at a centre-of-mass energy of 2.76 TeV per nucleon pair was studied using data collected with the CMS detector at the LHC. Fragmentation…

nucl-ex2012★ 133 cited

A study of the and resonances from CLAS data on

V. I. Mokeev, V. D. Burkert, L. Elouadrhiri +6

The transition helicity amplitudes from the proton ground state to the and excited states ( electrocouplings) were determined from the anal…

nucl-ex2012★ 88 cited

Measurement of the pseudorapidity and centrality dependence of the transverse energy density in PbPb collisions at sqrt(s[NN]) = 2.76 TeV

CMS Collaboration

The transverse energy ET in PbPb collisions at 2.76 TeV nucleon-nucleon center-of-mass energy sqrt(s[NN]) has been measured over a broad range of pseudorapidity eta and collision c…