Abstract
Quark interactions with topological gluon configurations can induce chirality imbalance and local parity violation in quantum chromodynamics. This can lead to electric charge separation along the strong magnetic field in relativistic heavy-ion collisions – the chiral magnetic effect (CME). We report measurements by the STAR collaboration of a CME-sensitive observable in p+Au and d+Au collisions at 200 GeV, where the CME is not expected, using charge-dependent pair correlations relative to a third particle. We observe strong charge-dependent correlations similar to those measured in heavy-ion collisions. This bears important implications for the interpretation of the heavy-ion data.
Original language | English |
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Article number | 134975 |
Journal | Physics Letters B |
Volume | 798 |
DOIs | |
State | Published - Nov 10 2019 |
Externally published | Yes |
Funding
We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at LBNL, and the Open Science Grid consortium for providing resources and support. This work was supported in part by the Office of Nuclear Physics within the U.S. DOE Office of Science, the U.S. National Science Foundation, the Ministry of Education and Science of the Russian Federation, National Natural Science Foundation of China, Chinese Academy of Sciences, the Ministry of Science and Technology of China and the Chinese Ministry of Education, the National Research Foundation of Korea, Czech Science Foundation and Ministry of Education, Youth and Sports of the Czech Republic, Hungarian National Research Development and Innovation Office, New National Excellency Programme of the Hungarian Ministry of Human Capacities, Department of Atomic Energy and Department of Science and Technology of the Government of India, the National Science Centre of Poland, the Ministry of Science, Education and Sports of the Republic of Croatia, ROSATOM of Russia and German Bundesministerium f‘̀ur Bildung, Wissenschaft, Forschung und Technologie (BMBF) and the Helmholtz Association. We thank the RHIC Operations Group and RCF at BNL , the NERSC Center at LBNL , and the Open Science Grid consortium for providing resources and support. This work was supported in part by the Office of Nuclear Physics within the U.S. DOE Office of Science, the U.S. National Science Foundation , the Ministry of Education and Science of the Russian Federation , National Natural Science Foundation of China , Chinese Academy of Sciences , the Ministry of Science and Technology of China and the Chinese Ministry of Education , the National Research Foundation of Korea , Czech Science Foundation and Ministry of Education, Youth and Sports of the Czech Republic, Hungarian National Research Development and Innovation Office , New National Excellency Programme of the Hungarian Ministry of Human Capacities , Department of Atomic Energy and Department of Science and Technology of the Government of India, the National Science Centre of Poland, the Ministry of Science, Education and Sports of the Republic of Croatia, ROSATOM of Russia and German Bundesministerium f‘̀ur Bildung, Wissenschaft, Forschung und Technologie (BMBF) and the Helmholtz Association .
Funders | Funder number |
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Department of Atomic Energy and Department of Science and Technology | |
Hungarian Ministry of Human Capacities | |
RHIC Operations Group | |
National Science Foundation | 1913624 |
Office of Science | |
Nuclear Physics | |
Riley Children's Foundation | |
National Natural Science Foundation of China | |
Ministerstvo Školství, Mládeže a Tělovýchovy | |
Grantová Agentura České Republiky | |
Ministry of Education of the People's Republic of China | |
Bundesministerium für Bildung und Forschung | |
Chinese Academy of Sciences | |
Ministry of Science and Technology of the People's Republic of China | |
Ministarstvo Obrazovanja, Znanosti i Sporta | |
Ministry of Education and Science of the Russian Federation | |
National Research Foundation of Korea | |
Narodowe Centrum Nauki | |
Helmholtz Association | |
National Research, Development and Innovation Office | |
̀ur Bildung, Wissenschaft, Forschung und Technologie |