Title: Collective Recoil of Medium Scatters in the Passage of a Jet in a Dense Medium

Speaker: Prof. Cheuk-Yin Wong, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA

Time and place: 13:00, October 12 (Friday), 2012, Lecture Hall/INPAC

Abstract:

Using the Feynman amplitude approach, we find that when a jet collides coherently with many parton scatterers at very high energies, the Bose-Einstein symmetry with respect to the interchange of the virtual bosons leads to an interesting interference. As a consequence, the recoiling scatterers have a tendency to come out collectively along the incident jet direction, each carrying a substantial fraction of the incident jet longitudinal momentum [1]. The manifestation of the scatterers collective recoils along the jet direction may have been observed in angular correlations (ridge corrrelations) of hadrons associated with a high-pT trigger in high-energy heavy-nuclei collisions at RHIC and LHC, and may provide the theoretical foundation for the longitudinal momentum kick in the momentum kick model [2-9].

References:

[1] C. Y. Wong, Phys. Rev. C 85, 064909 (2012).

[2] C. Y. Wong, Phys. Rev. C 76, 054908 (2007).

[3] C. Y. Wong, Chin. Phys. Lett. 25, 3936 (2008).

[4] C. Y. Wong, J. Phys. G 35, 104085 (2008).

[5] C. Y. Wong, Phys. Rev. C 78, 064905 (2008).

[6] C. Y. Wong, Phys. Rev. C 80, 034908 (2009).

[7] C. Y. Wong, Phys. Rev. C 80, 054917 (2009).

[8] C. Y. Wong, Nonlin. Phenom. Complex Syst. 12, 315 (2009).

[9] C. Y. Wong, Phys. Rev. C 84, 024901 (2011).