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Symmetry energy investigation with pion production from Sn plus Sn systems

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dc.contributor.authorJhang, G.-
dc.contributor.authorEstee, J.-
dc.contributor.authorBarney, J.-
dc.contributor.authorCerizza, G.-
dc.contributor.authorKaneko, M.-
dc.contributor.authorLee, J. W.-
dc.contributor.authorLynch, W. G.-
dc.contributor.authorIsobe, T.-
dc.contributor.authorKurata-Nishimura, M.-
dc.contributor.authorMurakami, T.-
dc.contributor.authorTsang, C. Y.-
dc.contributor.authorTsang, M. B.-
dc.contributor.authorWang, R.-
dc.contributor.authorAhn, D. S.-
dc.contributor.authorAtar, L.-
dc.contributor.authorAumann, T.-
dc.contributor.authorBaba, H.-
dc.contributor.authorBoretzky, K.-
dc.contributor.authorBrzychczyk, J.-
dc.contributor.authorChiga, N.-
dc.contributor.authorFukuda, N.-
dc.contributor.authorGasparic, I-
dc.contributor.authorHong, B.-
dc.contributor.authorHorvat, A.-
dc.contributor.authorIeki, K.-
dc.contributor.authorInabe, N.-
dc.contributor.authorKim, Y. J.-
dc.contributor.authorKobayashi, T.-
dc.contributor.authorKondo, Y.-
dc.contributor.authorLasko, P.-
dc.contributor.authorLee, H. S.-
dc.contributor.authorLeifels, Y.-
dc.contributor.authorLukasik, J.-
dc.contributor.authorManfredi, J.-
dc.contributor.authorMcIntosh, A. B.-
dc.contributor.authorMorfouace, P.-
dc.contributor.authorNakamura, T.-
dc.contributor.authorNakatsuka, N.-
dc.contributor.authorNishimura, S.-
dc.contributor.authorOlsen, R.-
dc.contributor.authorOtsu, H.-
dc.contributor.authorPawlowski, P.-
dc.contributor.authorPelczar, K.-
dc.contributor.authorRossi, D.-
dc.contributor.authorSakurai, H.-
dc.contributor.authorSantamaria, C.-
dc.contributor.authorSato, H.-
dc.contributor.authorScheit, H.-
dc.contributor.authorShane, R.-
dc.contributor.authorShimizu, Y.-
dc.contributor.authorSimon, H.-
dc.contributor.authorSnoch, A.-
dc.contributor.authorSochocka, A.-
dc.contributor.authorSosin, Z.-
dc.contributor.authorSumikama, T.-
dc.contributor.authorSuzuki, H.-
dc.contributor.authorSuzuki, D.-
dc.contributor.authorTakeda, H.-
dc.contributor.authorTangwancharoen, S.-
dc.contributor.authorToernqvist, H.-
dc.contributor.authorTogano, Y.-
dc.contributor.authorXiao, Z. G.-
dc.contributor.authorYennello, S. J.-
dc.contributor.authorYurkon, J.-
dc.contributor.authorZhang, Y.-
dc.contributor.authorColonna, Maria-
dc.contributor.authorCozma, Dan-
dc.contributor.authorDanielewicz, Pawel-
dc.contributor.authorElfner, Hannah-
dc.contributor.authorIkeno, Natsumi-
dc.contributor.authorKo, Che Ming-
dc.contributor.authorMohs, Justin-
dc.contributor.authorOliinychenko, Dmytro-
dc.contributor.authorOno, Akira-
dc.contributor.authorSu, Jun-
dc.contributor.authorWang, Yong Jia-
dc.contributor.authorWolter, Hermann-
dc.contributor.authorXu, Jun-
dc.contributor.authorZhang, Ying-Xun-
dc.contributor.authorZhang, Zhen-
dc.date.accessioned2021-12-03T22:43:35Z-
dc.date.available2021-12-03T22:43:35Z-
dc.date.created2021-08-30-
dc.date.issued2021-02-10-
dc.identifier.issn0370-2693-
dc.identifier.urihttps://scholar.korea.ac.kr/handle/2021.sw.korea/129225-
dc.description.abstractIn the past two decades, pions created in the high density regions of heavy ion collisions have been predicted to be sensitive at high densities to the symmetry energy term in the nuclear equation of state, a property that is key to our understanding of neutron stars. In a new experiment designed to study the symmetry energy, the multiplicities of negatively and positively charged pions have been measured with high accuracy for central Sn-132+Sn-124, Sn-112+Sn-124, and Sn-108+Sn-112 collisions at E/A = 270 MeV with the SnRIT Time Projection Chamber. While individual pion multiplicities are measured to 4% accuracy, those of the charged pion multiplicity ratios are measured to 2% accuracy. We compare these data to predictions from seven major transport models. The calculations reproduce qualitatively the dependence of the multiplicities and their ratios on the total neutron and proton number in the colliding systems. However, the predictions of the transport models from different codes differ too much to allow extraction of reliable constraints on the symmetry energy from the data. This finding may explain previous contradictory conclusions on symmetry energy constraints obtained from pion data in Au+Au system. These new results call for still better understanding of the differences among transport codes, and new observables that are more sensitive to the density dependence of the symmetry energy. (C) 2020 The Author(s). Published by Elsevier B.V.-
dc.languageEnglish-
dc.language.isoen-
dc.publisherELSEVIER-
dc.titleSymmetry energy investigation with pion production from Sn plus Sn systems-
dc.typeArticle-
dc.contributor.affiliatedAuthorHong, B.-
dc.identifier.doi10.1016/j.physletb.2020.136016-
dc.identifier.scopusid2-s2.0-85099502225-
dc.identifier.wosid000614817100037-
dc.identifier.bibliographicCitationPHYSICS LETTERS B, v.813-
dc.relation.isPartOfPHYSICS LETTERS B-
dc.citation.titlePHYSICS LETTERS B-
dc.citation.volume813-
dc.type.rimsART-
dc.type.docTypeArticle-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalResearchAreaAstronomy & Astrophysics-
dc.relation.journalResearchAreaPhysics-
dc.relation.journalWebOfScienceCategoryAstronomy & Astrophysics-
dc.relation.journalWebOfScienceCategoryPhysics, Nuclear-
dc.relation.journalWebOfScienceCategoryPhysics, Particles & Fields-
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