Search: (WAKA:ref) pers:(Gustafsson Hans Åke) pers:(Oskarsson Anders)
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Lévy-stable two-pio...
Lévy-stable two-pion Bose-Einstein correlations in s NN =200 GeV Au+Au collisions
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- Adare, A. (author)
- University of Colorado
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- Aidala, C. (author)
- University of Michigan,Los Alamos National Laboratory
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- Ajitanand, N. N. (author)
- Stony Brook University
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- Akiba, Y. (author)
- Riken BNL Research Center,RIKEN Nishina Center for Accelerator-Based Science
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- Akimoto, R. (author)
- University of Tokyo
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- Alexander, J J (author)
- Stony Brook University
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- Christiansen, Peter (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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- Gustafsson, Hans-Åke (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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- Haslum, Eva (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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- 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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- Stenlund, Evert (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 C. - 2469-9985. ; 97:6
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http://dx.doi.org/10...
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Abstract
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- We present a detailed measurement of charged two-pion correlation functions in 0-30% centrality sNN=200 GeV Au+Au collisions by the PHENIX experiment at the Relativistic Heavy Ion Collider. The data are well described by Bose-Einstein correlation functions stemming from Lévy-stable source distributions. Using a fine transverse momentum binning, we extract the correlation strength parameter λ, the Lévy index of stability α, and the Lévy length scale parameter R as a function of average transverse mass of the pair mT. We find that the positively and the negatively charged pion pairs yield consistent results, and their correlation functions are represented, within uncertainties, by the same Lévy-stable source functions. The λ(mT) measurements indicate a decrease of the strength of the correlations at low mT. The Lévy length scale parameter R(mT) decreases with increasing mT, following a hydrodynamically predicted type of scaling behavior. The values of the Lévy index of stability α are found to be significantly lower than the Gaussian case of α=2, but also significantly larger than the conjectured value that may characterize the critical point of a second-order quark-hadron phase transition. © 2018 American Physical Society.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
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- art (subject category)
- ref (subject category)
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- By the author/editor
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Adare, A.
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Aidala, C.
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Ajitanand, N. N.
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Akiba, Y.
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Akimoto, R.
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Alexander, J J
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Christiansen, Pe ...
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Gustafsson, Hans ...
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Haslum, Eva
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Oskarsson, Ander ...
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Silvermyr, David
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Stenlund, Evert
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Subatomic Physic ...
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Physical Review ...
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Lund University