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Measurements of Mul...
Measurements of Multiparticle Correlations in d+Au Collisions at 200, 62.4, 39, and 19.6 GeV and p+Au Collisions at 200 GeV and Implications for Collective Behavior
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- Aidala, C. (author)
- University of Michigan
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- Akiba, Y. (author)
- Brookhaven National Laboratory,RIKEN Nishina Center for Accelerator-Based Science
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- Alfred, M. (author)
- Howard University
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- Andrieux, V. (author)
- University of Michigan
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- Aoki, K. (author)
- High Energy Accelerator Research Organization, Tsukuba
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- Apadula, N (author)
- Iowa State University
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- Oskarsson, Anders (author)
- Lund University,Lunds universitet,Partikel- och kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Particle and nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Silvermyr, David (author)
- Lund University,Lunds universitet,Partikel- och kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Particle and nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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(creator_code:org_t)
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- 2018
- 2018
- English.
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In: Physical Review Letters. - 1079-7114. ; 120:6
- Related links:
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http://dx.doi.org/10...
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Abstract
Subject headings
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- Recently, multiparticle-correlation measurements of relativistic p/d/He3+Au, p+Pb, and even p+p collisions show surprising collective signatures. Here, we present beam-energy-scan measurements of two-, four-, and six-particle angular correlations in d+Au collisions at sNN=200, 62.4, 39, and 19.6 GeV. We also present measurements of two- and four-particle angular correlations in p+Au collisions at sNN=200 GeV. We find the four-particle cumulant to be real valued for d+Au collisions at all four energies. We also find that the four-particle cumulant in p+Au has the opposite sign as that in d+Au. Further, we find that the six-particle cumulant agrees with the four-particle cumulant in d+Au collisions at 200 GeV, indicating that nonflow effects are subdominant. These observations provide strong evidence that the correlations originate from the initial geometric configuration, which is then translated into the momentum distribution for all particles, commonly referred to as collectivity. © 2018 American Physical Society.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Keyword
- Colliding beam accelerators
- Germanium compounds
- Lead
- Angular correlations
- Beam energies
- Collective behavior
- Geometric configurations
- Measurements of
- Momentum distributions
- Multi-particle correlation
- Scan measurement
- Gold compounds
Publication and Content Type
- art (subject category)
- ref (subject category)
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