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Profil bibliographique

C. B. Powell

Informations fournies par OpenAlex. Research Africa ne déduit ni nationalité, ni poste, ni coordonnées personnelles.

65Publications signalées
2751Citations signalées
0Affiliations récentes

Les domaines associés

High-Energy Particle Collisions ResearchQuantum Chromodynamics and Particle InteractionsParticle physics theoretical and experimental studiesNuclear reactor physics and engineeringNuclear physics research studies

Les publications récentes

Accès ouvert 2016 article OpenAlex

J/ψ production at low transverse momentum in p+p and d + Au collisions at sNN=200 GeV

L. Adamczyk, J. K. Adkins, G. Agakishiev, M. M. Aggarwal et autres

We report on the measurement of $J/\ensuremath{\psi}$ production in the dielectron channel at midrapidity $(|y|<1)$ in $p+p$ and $d+\mathrm{Au}$ collisions at $\sqrt{{s}_{NN}}=200\phantom{\rule{4pt}{0ex}}\mathrm{GeV}$ from the STAR experiment at the Relativistic Heavy Ion Collider. The transverse momentum ${p}_{T}$ spectra in $p+p$ for ${p}_{T}<4\phantom{\rule{4pt}{0ex}}\mathrm{GeV}/c$ and …

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17 citations Physical Review C
Accès ouvert 2014 article OpenAlex

J/ψ production at low pT in Au + Au and Cu + Cu collisions at sNN=200 GeV with the STAR detector

L. Adamczyk, J. K. Adkins, G. Agakishiev, M. M. Aggarwal et autres

The $J/\ensuremath{\psi}$ ${p}_{T}$ spectrum and nuclear modification factor (${R}_{\mathit{AA}}$) are reported for ${p}_{T}<5\phantom{\rule{4pt}{0ex}}\mathrm{GeV}/c$ and $|y|<1$ from 0% to 60% central $\mathrm{Au}+\mathrm{Au}$ and $\mathrm{Cu}+\mathrm{Cu}$ collisions at $\sqrt{{s}_{NN}}=200\phantom{\rule{4pt}{0ex}}\mathrm{GeV}$ at STAR. A significant suppression of ${p}_{T}$-integrated $J/\ensuremath{\psi}$ production is observed in central $\mathrm{Au}+\mathrm{Au}$ events. The …

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81 citations Physical Review C
Accès ouvert 2014 article OpenAlex

Measurement of charge multiplicity asymmetry correlations in high-energy nucleus-nucleus collisions at sNN=200 GeV

L. Adamczyk, J. K. Adkins, G. Agakishiev, M. M. Aggarwal et autres

A study is reported of the same- and opposite-sign charge-dependent azimuthal correlations with respect to the event plane in Au + Au collisions at $\sqrt{{s}_{{}_{NN}}}=200$ GeV. The charge multiplicity asymmetries between the up/down and left/right hemispheres relative to the event plane are …

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106 citations Physical Review C
Accès ouvert 2014 article OpenAlex

Event-plane-dependent dihadron correlations with harmonic v n subtraction in Au + Au collisions at s NN = 200 GeV

H. Agakishiev, M. M. Aggarwal, Z. Ahammed, A. V. Alakhverdyants et autres

STAR measurements of dihadron azimuthal correlations ($\ensuremath{\Delta}\ensuremath{\phi}$) are reported in midcentral (20--60%) Au + Au collisions at $\sqrt{{s}_{{}_{\mathit{NN}}}}=200$ GeV as a function of the trigger particle's azimuthal angle relative to the event plane, ${\ensuremath{\phi}}_{s}=|{\ensuremath{\phi}}_{t}\ensuremath{-}{\ensuremath{\psi}}_{\mathrm{EP}}|$. The elliptic (${v}_{2}$), triangular (${v}_{3}$), and quadratic (${v}_{4}$) …

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27 citations Physical Review C
Accès ouvert 2014 article OpenAlex

Neutral pion cross section and spin asymmetries at intermediate pseudorapidity in polarized proton collisions at s=200 GeV

L. Adamczyk, J. K. Adkins, G. Agakishiev, M. M. Aggarwal et autres

The differential cross section and spin asymmetries for neutral pions produced within the intermediate pseudorapidity range $0.8<\ensuremath{\eta}<2.0$ in polarized proton-proton collisions at $\sqrt{s}=200\text{ }\text{ }\mathrm{GeV}$ are presented. Neutral pions were detected using the end cap electromagnetic calorimeter in the STAR detector at …

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45 citations Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields
Accès ouvert 2014 article OpenAlex

Neutral pion cross section and spin asymmetries at intermediate pseudorapidity in polarized proton collisions at √s = 200 GeV

L. Adamczyk, J. K. Adkins, G. Agakishiev, M. M. Aggarwal et autres

The differential cross section and spin asymmetries for neutral pions produced within the intermediate pseudorapidity range 0.8<η<2.0 in polarized proton-proton collisions at s=200 GeV are presented. Neutral pions were detected using the end cap electromagnetic calorimeter in the STAR detector at RHIC. …

2 citations Repository of the Academy's Library (Library of the Hungarian Academy of Sciences)
Accès ouvert 2013 article OpenAlex

Fluctuations of charge separation perpendicular to the event plane and local parity violation in sNN=200 GeV Au + Au collisions at the BNL Relativistic Heavy Ion Collider

L. Adamczyk, J. K. Adkins, G. Agakishiev, M. M. Aggarwal et autres

Previous experimental results based on data ($\ensuremath{\sim}$$15\ifmmode\times\else\texttimes\fi{}{10}^{6}$ events) collected by the STAR detector at the BNL Relativistic Heavy Ion Collider suggest event-by-event charge-separation fluctuations perpendicular to the event plane in noncentral heavy-ion collisions. Here we present the correlator previously used split into …

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132 citations Physical Review C
Accès ouvert 2013 article OpenAlex

Freeze-out dynamics via charged kaon femtoscopy in sNN=200 GeV central Au + Au collisions

L. Adamczyk, J. K. Adkins, G. Agakishiev, M. M. Aggarwal et autres

We present measurements of three-dimensional correlation functions of like-sign, low-transverse-momentum kaon pairs from $\sqrt{{s}_{NN}}=200$ GeV $\mathrm{Au}+\mathrm{Au}$ collisions. A Cartesian surface-spherical harmonic decomposition technique was used to extract the kaon source function. The latter was found to have a three-dimensional Gaussian shape and …

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23 citations Physical Review C

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