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Article: Angular dependence in proton-proton correlation functions in central 40Ca+40Ca and 48Ca+48Ca reactions

TitleAngular dependence in proton-proton correlation functions in central 40Ca+40Ca and 48Ca+48Ca reactions
Authors
Issue Date2012
Citation
Physical Review C - Nuclear Physics, 2012, v. 85, n. 1 How to Cite?
AbstractThe angular dependence of proton-proton correlation functions is studied in central 40Ca+40Ca and 48Ca+48Ca nuclear reactions at E/A=80 MeV. Measurements were performed with the High Resolution Array (HiRA) complemented by the 4π Array at the National Superconducting Cyclotron Laboratory. A striking angular dependence in the laboratory frame is found within proton-proton correlation functions for both systems that greatly exceeds the measured and expected isospin dependent difference between the neutron-rich and neutron-deficient systems. Sources measured at backward angles reflect the participant zone of the reaction, while much larger sources observed at forward angles reflect the expanding, fragmenting, and evaporating projectile remnants. The decrease of the size of the source with increasing momentum is observed at backward angles while a weaker trend in the opposite direction is observed at forward angles. The results are compared to the theoretical calculations using the Boltzmann-Uehling-Uhlenbeck (BUU) transport model. © 2012 American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/200102
ISSN
2014 Impact Factor: 3.733
2015 SCImago Journal Rankings: 1.601
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorHenzl, Vladimir-
dc.contributor.authorKilburn, Michael A.-
dc.contributor.authorChajȩcki, Zbigniew-
dc.contributor.authorHenzlová, Daniela-
dc.contributor.authorLynch, William G.-
dc.contributor.authorBrown, D. A.-
dc.contributor.authorChbihi, A.-
dc.contributor.authorCoupland, D. D S-
dc.contributor.authorDanielewicz, Paweł-
dc.contributor.authorDesouza, Romualdo T.-
dc.contributor.authorFamiano, Michael A.-
dc.contributor.authorHerlitzius, Clemens-
dc.contributor.authorHudan, Sylvie-
dc.contributor.authorLee, Jenny-
dc.contributor.authorLukyanov, S. M.-
dc.contributor.authorRogers, Andrew M.-
dc.contributor.authorSanetullaev, A.-
dc.contributor.authorSobotka, Lee G.-
dc.contributor.authorSun, Zhiyu-
dc.contributor.authorTsang, Betty-
dc.contributor.authorVander Molen, A. M V-
dc.contributor.authorVerde, Giuseppe-
dc.contributor.authorWallace, Mark S.-
dc.contributor.authorYoungs, M.-
dc.date.accessioned2014-07-26T23:11:08Z-
dc.date.available2014-07-26T23:11:08Z-
dc.date.issued2012-
dc.identifier.citationPhysical Review C - Nuclear Physics, 2012, v. 85, n. 1-
dc.identifier.issn0556-2813-
dc.identifier.urihttp://hdl.handle.net/10722/200102-
dc.description.abstractThe angular dependence of proton-proton correlation functions is studied in central 40Ca+40Ca and 48Ca+48Ca nuclear reactions at E/A=80 MeV. Measurements were performed with the High Resolution Array (HiRA) complemented by the 4π Array at the National Superconducting Cyclotron Laboratory. A striking angular dependence in the laboratory frame is found within proton-proton correlation functions for both systems that greatly exceeds the measured and expected isospin dependent difference between the neutron-rich and neutron-deficient systems. Sources measured at backward angles reflect the participant zone of the reaction, while much larger sources observed at forward angles reflect the expanding, fragmenting, and evaporating projectile remnants. The decrease of the size of the source with increasing momentum is observed at backward angles while a weaker trend in the opposite direction is observed at forward angles. The results are compared to the theoretical calculations using the Boltzmann-Uehling-Uhlenbeck (BUU) transport model. © 2012 American Physical Society.-
dc.languageeng-
dc.relation.ispartofPhysical Review C - Nuclear Physics-
dc.titleAngular dependence in proton-proton correlation functions in central 40Ca+40Ca and 48Ca+48Ca reactions-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1103/PhysRevC.85.014606-
dc.identifier.scopuseid_2-s2.0-84862946240-
dc.identifier.volume85-
dc.identifier.issue1-
dc.identifier.eissn1089-490X-
dc.identifier.isiWOS:000299119000002-

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