Globally polarized quark-gluon plasma in noncentral A + A collisions

Physical Review Letters

Volumn 94, Issue 10, 2005, Pages

  Liang, Zuo Tang ^a   Wang, Xin Nian ^a,b  

^a SHANDONG UNIVERSITY   (China)

^b LAWRENCE BERKELEY NATIONAL LABORATORY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ANGULAR MOMENTUM; HADRONIZATION; HYPERON POLARIZATION; PARTONS;

ANGLE MEASUREMENT; COLLISION AVOIDANCE; HEAVY IONS; PARAMETER ESTIMATION; PHOTONS; POLARIZATION; REACTION KINETICS; SCATTERING;

PLASMA APPLICATIONS;

EID: 18044379748     PISSN: 00319007     EISSN: 10797114     Source Type: Journal    
DOI: 10.1103/PhysRevLett.94.102301     Document Type: Article

References (17)

1. A. Bravar, Proceedings of the 13th International Symposium on High Energy Spin Physics, Protvino, Russia, September 1998, edited by N.E. Tyurin et al. (World Scientific, Singapore, 1999).
2. Z. Liang and C. Boros, Phys. Rev. Lett. 79, 3608 (1997).
3. C. Boros, Z. Liang, and T. Meng, Phys. Rev. Lett. 70, 1751 (1993).
4. Z. Liang and C. Boros, Int. J. Mod. Phys. A 15, 927 (2000).
5. S.M. Troshin and N.E. Tyurin, Phys. Rev. D 55, 1265 (1997).
6. J.C. Collins, Nucl. Phys. B396, 161 (1993).
7. J.W. Qiu and G. Sterman, Phys. Rev. D 59, 014004 (1999).
8. R. Stock et al., Proceedings of the Conference on Quark Matter Formation and Heavy-Ion Collisions, edited by M. Jacob and H. Satz (World Scientific, Singapore, 1982).
9. A.D. Panagiotou, Phys. Rev. C 33, 1999 (1986).
10. B. B. Back et al., nucl-ex/0301017.
11. M. Gyulassy and X.N. Wang, Nucl. Phys. B420, 583 (1994).
12. Hcosθ, for the decay products with respect to polarization direction, where α is a measured constant. It is clear that measurement of global hyperon polarization requires the determination of not only the orientation but also the sign of the reaction plane. This can be achieved through the measurement of the directed flow [13] of produced hadrons at large rapidities. If multiple hyperons are produced in the same event, one can also measure the global polarization via correlation between the spin of two hyperons.
13. J. Adams et al., Phys. Rev. Lett. 92, 062301 (2004).
14. D. Buskulic et al., Phys. Lett. B 374, 319 (1996); K. Ackerstaff et al., Eur. Phys. J. C 2, 49 (1998).
15. D. Buskulic et al., Phys. Lett. B 374, 319 (1996); K. Ackerstaff et al., Eur. Phys. J. C 2, 49 (1998).
16. C. Boros and Z. Liang, Phys. Rev. D 57, 4491 (1998).
17. C.C. Barros and Y. Hama, Phys. Rev. C 63, 065203 (2001).