Various flows of black and grey particles produced in Mg-emulsion collisions at 4.5 <EM>A</EM> GeV <EM>c</EM>

GAO Yan; LIU Fu-Hu; Abd Allah

doi:10.1088/1674-1137/35/1/009

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 4.5 A GeV c

Abstract
HTML
Reference
Related

PDF

Abstract：
Various flow phenomena of black particles (b-particles) and grey particles (g-particles) produced in magnesium-emulsion (Mg-Em) collisions at 4.5 A GeV /c are reported. These flows are directed and elliptic transverse flows (v₁ and v₂) related by the azimuthal angle (φ), directed and elliptic reaction plane flows (v_R1 and v_R2) related by the projected angle (ψ) on the reaction plane, and directed and elliptic polar direction flows (v_P1 and 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.

References

[1]

Gutbrod H H, Kampert K H, Kolb B, Poskanzer A M, Ritter H G, Schicker R, Schmidt H R. Phys. Rev. C, 1990, 42: 6402 Poskanzer A M, Voloshin S A. Phys. Rev. C, 1998, 58: 16713 LIU F H, Abd Allah N N, ZHANG D H, DUAN M Y. Chin. J. Phys., 2004, 42: 1524 LIU F H, FAN S H, Abd Allah N N, Singh B K. Radiation Measurements, 2008, 43: S2345 Jain P L, Aggarwal M M. Phys. Rev., 1986, 33: 17906 Singh G, Sengupta K, Jain P L. Phys. Rev. C, 1990, 41: 9997 El-Nadi M, Ali-Mossa N, Abdelsalam A. Nuovo Cimento A, 1997, 110: 12558 Abd-Allah N N. J. Phys. Soc. Jpn. 2000, 69: 1068

[1]	null . Acceleration of particles in Einstein-Maxwell-dilaton black holes. Chinese Physics C, 2017, 41(6): 065101. doi: 10.1088/1674-1137/41/6/065101
[2]	S. Kamel , W. Osman , M. Fayed . Yields of projectile fragments in sulphur-emulsion interactions at 3.7 A GeV. Chinese Physics C, 2017, 41(5): 054001. doi: 10.1088/1674-1137/41/5/054001
[3]	ZHANG Dong-Hai , CHEN Yan-Ling , WANG Guo-Rong , LI Wang-Dong , WANG Qing , YAO Ji-Jie , ZHOU Jian-Guo , LI Rong , LI Jun-Sheng , LI Hui-Ling . Forward-backward multiplicity correlations of target fragments in nucleus-emulsion collisions at a few hundred MeV/u. Chinese Physics C, 2015, 39(1): 014001. doi: 10.1088/1674-1137/39/1/014001
[4]	Ali Zaman , Mais Suleymanov , Muhammad Ajaz , Kamal Hussain Khan . Effect of the jet production on pseudorapidity, transverse momentum and transverse mass distributions of charged particles produced in pp-collisions at Tevatron energy. Chinese Physics C, 2015, 39(7): 073001. doi: 10.1088/1674-1137/39/7/073001
[5]	JIANG Zhi-Jin , MA Ke , ZHANG Hai-Li , CAI Liu-Mei . Pseudorapidity distributions of the produced charged particles in nucleus-nucleus collisions at low energies at the BNL relativisticheavy ion collider. Chinese Physics C, 2014, 38(8): 084103. doi: 10.1088/1674-1137/38/8/084103
[6]	E. A. Shaat , Z. Abou-Moussa , B. M. Badawy , Z. S. Mater . Multiplicity characteristics in relativistic ²⁴Mg-nucleus collisions. Chinese Physics C, 2013, 37(8): 084001. doi: 10.1088/1674-1137/37/8/084001
[7]	BAI Cai-Yan , ZHANG Dong-Hai . Study of compound particle production in ⁸⁴Kr-emulsion interactions at 1.7 A GeV. Chinese Physics C, 2011, 35(4): 349-354. doi: 10.1088/1674-1137/35/4/006
[8]	BAI Cai-Yan , ZHANG Dong-Hai . Projectile spectator proton production in ⁸⁴Kr- emulsion interactions at 1.7 A GeV. Chinese Physics C, 2011, 35(5): 436-440. doi: 10.1088/1674-1137/35/5/005
[9]	LI Hui-Ling , ZHANG Dong-Hai , LI Jun-Sheng . Multiplicities of forward-backward particles in ¹⁶O-emulsion interactions at 4.5 AGeV/c. Chinese Physics C, 2009, 33(7): 521-527. doi: 10.1088/1674-1137/33/7/004
[10]	LI Jun-Sheng , ZHANG Dong-Hai , LIU Fu-Hu . Intermittent type fluctuation of target fragments produced in ¹⁶O-AgBr interactions at 4.5 AGeV/c. Chinese Physics C, 2008, 32(5): 352-355. doi: 10.1088/1674-1137/32/5/005
[11]	MENG Cai-Rong , LI Xiao-Lin , DUAN Mai-Ying . Pseudorapidity Distribution of Shower Particles in ²⁴Mg-Emulsion Collisions at 4.5A GeV/c. Chinese Physics C, 2004, 28(11): 1165-1169.
[12]	ZHANG Dong-Hai . Production of Helium Projectile Fragments in ¹⁶O-Emulsion Collisions at 60 A GeV. Chinese Physics C, 2002, 26(1): 40-45.
[13]	ZHANG Dong-Hai , SUN Han-Cheng . Investigation of the Production of Slow Particles in 60 A GeV ¹⁶O Induced Nuclear Emulsion Reaction. Chinese Physics C, 2001, 25(7): 651-657.
[14]	Wang Shaoshun , Li Zuhao , Zhang Jie , Xiao Chenguo , Ye Yunxiu , Shen Tianguang . The Azimuthal Structure of Particles Produced in pp Collisions at 400 GeV/c. Chinese Physics C, 1996, 20(4): 297-303.
[15]	Wang Haiqiao , Cai Xu . Correlation Between Grey Particles and the Number of hN Interactions Inside a Nucleus in High Energy hA Collisions. Chinese Physics C, 1990, 14(S2): 189-193.
[16]	WANG Shao-Shun , ZHANG Jie , XIAO Chen-Guo , YE Yun-Xiu , SHI Guo-Shun , FANG Rong , YANG Jie . MULTIPLICITY DISTRIBUTIONS OF CHARGED PARTICLES PRODUCED IN pp COLLISIONS AT 400GeV/c. Chinese Physics C, 1989, 13(8): 673-679.
[17]	Wang Shaoshun , Zhang Jie , Xiao Chenguo , Ye Yunxiu , Shi Guoshun , Fang Rong , Yang Jie . Multiplicity Distribution of Charged Particles Produced in pp Collisions at 400 GeY/c. Chinese Physics C, 1989, 13(S3): 231-238.
[18]	CAI Xu , QIAN Wan-Yan , ZHOU Dai-Cui , ZHOU Jing-Chen . INTERACTION FREE PATH AND PROJECTILE α-FRAGMENT MULTIPLICITY DISTRIBUTIONS IN ⁸⁴Kr-EMULSION COLLISIONS AT 1.4A GeV. Chinese Physics C, 1988, 12(5): 581-583.
[19]	Jiang Huanqing , Li Yangguo . Surface Production of η Particles in π-A Collisions. Chinese Physics C, 1988, 12(S4): 387-392.
[20]	LIU Bo , WANG Ying-Cai . MULTIPLICITY DISTRIBUTIONS OF PRODUCED PARTICLES AND ENERGY LOSS IN PROTON-NUCLEUS COLLISIONS AT 200GeV/c. Chinese Physics C, 1987, 11(2): 231-237.

Access

Get Citation

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

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(2451)
PDF Downloads(456)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, [email protected]

1.
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 4.5 A GeV c

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 4.5 A GeV /c are reported. These flows are directed and elliptic transverse flows (v₁ and v₂) related by the azimuthal angle (φ), directed and elliptic reaction plane flows (v_R1 and v_R2) related by the projected angle (ψ) on the reaction plane, and directed and elliptic polar direction flows (v_P1 and 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.

HTML

Reference (1)

Various flows of black and grey particles produced in Mg-emulsion collisions at 4.5 A GeV c

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, [email protected]

Email This Article

Various flows of black and grey particles produced in Mg-emulsion collisions at 4.5 A GeV c

HTML

目录