Chinese Physics C > 2011, Vol. 35 > Issue(1): 40-43 DOI: 10.1088/1674-1137/35/1/009

Various flows of black and grey particles produced in Mg-emulsion collisions at 4.5AGeVc

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Abstract：
Various flow phenomena of black particles (b-particles) and grey particles (g-particles) produced in magnesium-emulsion (Mg-Em) collisions at 4.5 AGeV / care reported. These flows are directed and elliptic transverse flows ( v ₁and v ₂) related by the azimuthal angle ( φ), directed and elliptic reaction plane flows ( v _R1and v _R2) related by the projected angle ( ψ) on the reaction plane, and directed and elliptic polar direction flows ( v _P1and v _P2) related by the polar angle ( θ). We extract absolute flows as the direct experimental values minus the isotropic theoretical values. The dependence of the various flows on the target particle multiplicity and on the angles ( θ,φ,ψ) is investigated. Our results show that the dependence of b-particle flows on the target size is obvious and for heavy targets the dependence on target particle multiplicity is slight. Compared with b-particles, g-particles have a slight dependence on the target size and target particle multiplicity.

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GAO Yan, LIU Fu-Hu and Abd Allah. Various flows of black and grey particles produced in Mg-emulsion collisions at 4.5 AGeV c[J]. Chinese Physics C, 2011, 35(1): 40-43. doi: 10.1088/1674-1137/35/1/009

GAO Yan, LIU Fu-Hu and Abd Allah. Various flows of black and grey particles produced in Mg-emulsion collisions at 4.5 AGeV c[J]. Chinese Physics C, 2011, 35(1): 40-43. doi:10.1088/1674-1137/35/1/009 shu

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Received: 2010-03-10
Revised: 2010-03-22

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Various flows of black and grey particles produced in Mg-emulsion collisions at 4.5AGeVc

Received Date:2010-03-10

Accepted Date:2010-03-22

Available Online:2011-01-05

Abstract:Various flow phenomena of black particles (b-particles) and grey particles (g-particles) produced in magnesium-emulsion (Mg-Em) collisions at 4.5AGeV /care reported. These flows are directed and elliptic transverse flows (v₁andv₂) related by the azimuthal angle (φ), directed and elliptic reaction plane flows (v_R1andv_R2) related by the projected angle (ψ) on the reaction plane, and directed and elliptic polar direction flows (v_P1andv_P2) related by the polar angle (θ). We extract absolute flows as the direct experimental values minus the isotropic theoretical values. The dependence of the various flows on the target particle multiplicity and on the angles (θ,φ,ψ) is investigated. Our results show that the dependence of b-particle flows on the target size is obvious and for heavy targets the dependence on target particle multiplicity is slight. Compared with b-particles, g-particles have a slight dependence on the target size and target particle multiplicity.

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Various flows of black and grey particles produced in Mg-emulsion collisions at 4.5AGeVc

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Various flows of black and grey particles produced in Mg-emulsion collisions at 4.5AGeVc

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