Spin alignment of vector mesons in non-central A+Acollisions

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We discuss the consequence of global polarization of the produced quarks in non-central heavy-ion collisions on the spin alignment of vector mesons. We show that the alignment is quite different for different hadronization scenarios. These results can be tested directly by measuring the vector mesons' alignment through angular distributions of the decay products with respect to the reaction plane. Such angular distributions will give rise to azimuthal anisotropy v{sub 2} of the decay products in the collision frame. Constraints provided by the data on the azimuthal anisotropy of hadron spectra at RHIC points to a quark recombination scenario of hadronization.

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Liang, Zuo-Tang & Wang, Xin-Nian October 20, 2004.

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We discuss the consequence of global polarization of the produced quarks in non-central heavy-ion collisions on the spin alignment of vector mesons. We show that the alignment is quite different for different hadronization scenarios. These results can be tested directly by measuring the vector mesons' alignment through angular distributions of the decay products with respect to the reaction plane. Such angular distributions will give rise to azimuthal anisotropy v{sub 2} of the decay products in the collision frame. Constraints provided by the data on the azimuthal anisotropy of hadron spectra at RHIC points to a quark recombination scenario of hadronization.

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  • Journal Name: Physics Letters B; Journal Volume: 629; Journal Issue: 1; Related Information: Journal Publication Date: 11/17/2005

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  • Report No.: LBNL--56659
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 878316
  • Archival Resource Key: ark:/67531/metadc873817

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Office of Scientific & Technical Information Technical Reports

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  • October 20, 2004

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  • Sept. 21, 2016, 2:29 a.m.

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  • Sept. 30, 2016, 12:49 p.m.

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Liang, Zuo-Tang & Wang, Xin-Nian. Spin alignment of vector mesons in non-central A+Acollisions, article, October 20, 2004; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc873817/: accessed October 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.