output
19912026
Showing 2012 · nucl-exShow all

38 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★ 28 cited

Measurement of transparency ratios for protons from short-range correlated pairs

O. Hen, H. Hakobyan, R. Shneor +5

Nuclear transparency, Tp(A), is a measure of the average probability for a struck proton to escape the nucleus without significant re-interaction. Previously, nuclear transparencie…

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★ 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★ 728 cited

Observation of long-range near-side angular correlations in proton-lead collisions at the LHC

CMS Collaboration

Results on two-particle angular correlations for charged particles emitted in pPb collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV are presented. The analysis uses…

nucl-ex2012★ 70 cited

Giant Monopole Resonance in even-A Cd isotopes, the asymmetry term in nuclear incompressibility, and the "softness" of Sn and Cd nuclei

D. Patel, U. Garg, M. Fujiwara +13

The isoscalar giant monopole resonance (ISGMR) in even-A Cd isotopes has been studied by inelastic -scattering at 100 MeV/u and at extremely forward angles, including 0deg. The…

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

Cold Nuclear Matter Effects and Heavy Quark Production in PHENIX

A. D. Frawley

The PHENIX experiment uses semileptonic decay channels to measure open and closed heavy flavor cross sections across the rapidity range . High luminosity data are n…

nucl-ex2012★ 2 cited

Exploring the neutron dripline two neutrons at a time: The first observations of the 26O and 16Be ground state resonances

Z. Kohley, A. Spyrou, E. Lunderberg +22

The two-neutron unbound ground state resonances of O and Be were populated using one-proton knockout reactions from F and B beams. A coincidence measure…

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★ 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★ 68 cited

Well-established nucleon resonances revisited by double-polarization measurements

A. Thiel, A. V. Anisovich, D. Bayadilov +64

The first measurement is reported of the double-polarization observable G in photoproduction of neutral pions off protons, covering the photon energy range from 620 to 1120 MeV and…

nucl-ex2012★ 23 cited

Virtual Compton Scattering and the Generalized Polarizabilities of the Proton at Q^2=0.92 and 1.76 GeV^2

H. Fonvieille, G. Laveissiere, N. Degrande +161

Virtual Compton Scattering (VCS) on the proton has been studied at Jefferson Lab using the exclusive photon electroproduction reaction (e p --> e p gamma). This paper gives a detai…

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★ 146 cited

Study of W boson production in PbPb and pp collisions at sqrt(s[NN]) = 2.76 TeV

CMS Collaboration

A measurement is presented of W-boson production in PbPb collisions carried out at a nucleon-nucleon (NN) centre-of-mass energy sqrt(s[NN]) of 2.76 TeV at the LHC using the CMS det…

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…