Abstract
We present the first measurements of charge-dependent correlations on angular difference variables η1-η2 (pseudorapidity) and φ1-φ2 (azimuth) for primary charged hadrons with transverse momentum 0.15≤pt≤2 GeV/c and |η|≤1.3 from Au-Au collisions at √sNN=130 GeV. We observe correlation structures not predicted by theory but consistent with evolution of hadron emission geometry with increasing centrality from one-dimensional fragmentation of color strings along the beam direction to an at least two-dimensional hadronization geometry along the beam and azimuth directions of a hadron-opaque bulk medium.
| Original language | English |
|---|---|
| Pages (from-to) | 347-355 |
| Number of pages | 9 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 634 |
| Issue number | 4 |
| DOIs | |
| State | Published - Mar 16 2006 |
Bibliographical note
Funding Information:We thank the RHIC Operations Group and RCF at BNL, and the NERSC Center at LBNL for their support. This work was supported in part by the HENP Divisions of the Office of Science of the US DOE; the US NSF; the BMBF of Germany; IN2P3, RA, RPL, and EMN of France; EPSRC of the United Kingdom; FAPESP of Brazil; the Russian Ministry of Science and Technology; the Ministry of Education and the NNSFC of China; IRP and GA of the Czech Republic, FOM of the Netherlands, DAE, DST, and CSIR of the Government of India; Swiss NSF; the Polish State Committee for Scientific Research; STAA of Slovakia, and the Korea Sci. & Eng. Foundation.
Funding
We thank the RHIC Operations Group and RCF at BNL, and the NERSC Center at LBNL for their support. This work was supported in part by the HENP Divisions of the Office of Science of the US DOE; the US NSF; the BMBF of Germany; IN2P3, RA, RPL, and EMN of France; EPSRC of the United Kingdom; FAPESP of Brazil; the Russian Ministry of Science and Technology; the Ministry of Education and the NNSFC of China; IRP and GA of the Czech Republic, FOM of the Netherlands, DAE, DST, and CSIR of the Government of India; Swiss NSF; the Polish State Committee for Scientific Research; STAA of Slovakia, and the Korea Sci. & Eng. Foundation.
| Funders | Funder number |
|---|---|
| EMN | |
| Office of Science of the US DOE | |
| Russian Ministry of Science and Technology | |
| U.S. Department of Energy Chinese Academy of Sciences Guangzhou Municipal Science and Technology Project Oak Ridge National Laboratory Extreme Science and Engineering Discovery Environment National Science Foundation National Energy Research Scientific Computing Center National Natural Science Foundation of China | |
| Engineering and Physical Sciences Research Council | |
| Department of Science and Technology, Ministry of Science and Technology, India | |
| Council of Scientific and Industrial Research, India | |
| Government of India, Department of Atomic Energy | |
| Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung | |
| Fundação de Amparo à Pesquisa do Estado de São Paulo | |
| National Natural Science Foundation of China (NSFC) | |
| Bundesministerium für Bildung und Forschung | IN2P3 |
| Bundesministerium für Bildung und Forschung | |
| Ministry of Education China | |
| Komitet Badań Naukowych |
Keywords
- Hadronization
- Heavy ion collisions
- Net-charge correlations
- Net-charge fluctuations
ASJC Scopus subject areas
- Nuclear and High Energy Physics
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