Hypertriton and light nuclei production at Λ-production subthreshold energy in heavy-ion collisions

ZHANG Song; CHEN Jin-Hui; MA Yu-Gang; XU Zhang-Bu; CAI Xiang-Zhou; MA Guo-Liang; ZHONG Chen

doi:10.1088/1674-1137/35/8/008

Chinese Physics C> 2011, Vol. 35> Issue(8) : 741-746 DOI: 10.1088/1674-1137/35/8/008

Hypertriton and light nuclei production at Λ-production subthreshold energy in heavy-ion collisions

Abstract
HTML
Reference
Related

PDF

Abstract：
High-energy heavy-ion collisions produce abundant hyperons and nucleons. A dynamical coalescence model coupled with the ART model is employed to study the production probabilities of light clusters, deuteron (d), triton (t), helion (³He), and hypertriton (_Λ³H) at subthreshold energy of Λ production (≈ 1 GeV per nucleon). We study the dependence on the reaction system size of the coalescence penalty factor per additional nucleon and entropy per nucleon. The Strangeness Population Factor (S₃ / (³He × (Λ/p))) shows an extra suppression of hypertriton comparing to light clusters of the same mass number. This model predicts a hypertriton production cross-section of a few μb in ³⁶Ar+³⁶Ar, ⁴⁰Ca+⁴⁰Ca and ⁵⁶Ni+⁵⁶Ni in 1 A GeV reactions. The production rate is as high as a few hypertritons per million collisions, which shows that the fixed-target heavy-ion collisions at CSR (Lanzhou/China) at Λ subthreshold energy are suitable for breaking new ground in hypernuclear physics.

References

[1]

Arsene I et al. Nucl. Phys. A, 2005, 757: 1; Back B B et al. Nucl. Phys. A, 2005, 757: 28; Adams J et al. Nucl. Phys. A, 2005, 757: 102; Adler S S et al. Nucl. Phys. A, 2005,757: 1842 Barrette J et al. Phys. Lett. B, 1990, 252: 5503 Wroblewski A D. Acta Phys. Pol. B, 2004, 35: 9014 Scha ner J, Mishustin I. Phys. Rev. C, 1996, 53: 14165 Hofmann F, Keil C M, Lenske H. Phys. Rev. C, 2001, 64: 0258046 Danysz M, Pniewski J. Phil. Mag., 1953, 44: 3487 Kerman A K, Weiss M S. Phys. Rev. C, 1973, 8: 408; Gutbrod H H et al. Phys. Rev. Lett., 1976, 37: 6678 Steinheimer J et al. Phys. Lett. B, 2009, 676: 1269 Sato H, Yazaki K. Phys. Lett. B, 1981, 98: 15310 Zhang S et al. Phys. Lett. B, 2010, 684: 22411 Armstrong T A et al. Phys. Rev. C, 2004, 70: 02490212 Abelev B I et al. Science, 2010, 328: 5813 Albergo S et al. Phys. Rev. C, 2002, 65: 03490714 Siemens P J and Kapusta J I. Phys. Rev. Lett., 1979, 43: 148615 Andronic A, Braun-Munzinger P, Stachel J. Phys. Lett. B, 2009, 673: 14216 Beane S R, Bedaque P F, Parreno A, Savage M J. Nucl. Phys. A, 2005, 747: 55; Beane S R et al. Nucl. Phys. A, 2007, 794: 6217 Dalitz R H, Rajasekharan G. Phys. Lett., 1962, 1: 58; Kamada H, Golak J, Miyagawa K, Witala H, Glockle W. Phys. Rev. C, 1998, 57: 159518 Davis D H. Nucl. Phys. A, 1992, 547: 36919 Csernai L P, Kapusta J I. Phys. Rep., 1986, 131: 22320 Gaitanos T, Lenske H, Mosel U. Phys. Lett. B, 2009, 675: 29721 Gupta S Das. Nucl. Phys. A, 2009, 822: 41; Pop V Topor, Gupta S Das. Phys. Rev. C, 2010, 81: 05491122 Jing H T, Shen P N, Jiang H Q. HEP NP, 2007, 31: 10 (in Chinese); YANG X D et al. Chin. Phys. C (HEP NP), 2009, 33: 1823 Gyulassy M, Frankel K, Relmer E A. Nucl. Phys. A, 1983, 402: 59624 Mattiello R et al. Phys. Rev. C, 1997, 55: 1443; Oh Y, Ko C M. Phys. Rev. C, 2007, 76: 05491025 Polleri A et al. Nucl. Phys. A, 1999, 661: 45226 Aerts A T M, Dover C B. Phys. Rev. D, 1983, 28: 450; Chen L W, Ko C M. Phys. Rev. C, 2006, 73: 04490327 Li B A, Ko C M. Phys. Rev. C, 1995, 52: 203728 Bertsch G F, Gupta S Das. Phys. Rep., 1988, 160: 189; Li B A, Bauer W. Phys. Lett. B, 1991, 254: 33529 Baldini A, Flaminio V, Moorhead W G, Morrison D R O. Total Cross-sections for the Reactions of high Energy particles. Berlin: Springer-Verlag, 1988. 10230 Merschmeyer M et al. Phys. Rev. C, 2007, 76: 02490631 Justice M et al. Phys. Lett. B, 1998, 440: 1232 Shen W Q et al. Nucl. Phys. A, 1989, 491: 13033 Xu Z B. J. Phys. G: Nucl. Part. Phys., 1999, 25: 40334 Barrette J et al. Phys. Rev. C, 1994, 50: 1077

[1]	Rui-Qin Wang , Jun Song , Gang Li , Feng-Lan Shao . Different production sources of light nuclei inultra-relativistic heavy-ion collisions. Chinese Physics C, 2019, 43(2): 024101. doi: 10.1088/1674-1137/43/2/024101
[2]	Li Yan . A flow paradigm in heavy-ion collisions. Chinese Physics C, 2018, 42(4): 042001. doi: 10.1088/1674-1137/42/4/042001
[3]	Su-Ya-La-Tu Zhang , Mei-Rong Huang , R. Wada , Xing-Quan Liu , Wei-Ping Lin , Jian-Song Wang . Symmetry energy and experimentally observed cold fragments in intermediate heavy-ion collisions. Chinese Physics C, 2017, 41(4): 044001. doi: 10.1088/1674-1137/41/4/044001
[4]	Feng-Lan Shao , Jun Song , Rui-Qin Wang , Mao-Sheng Zhang . Energy dependence of resonance production in relativistic heavy ion collisions. Chinese Physics C, 2017, 41(1): 014101. doi: 10.1088/1674-1137/41/1/014101
[5]	ZHANG Dong-Hong , XIE Wen-Jie , SU Jun , ZHANG Feng-Shou . Production cross section of neutron-rich calcium isotopes in heavy ion collisions. Chinese Physics C, 2015, 39(4): 044103. doi: 10.1088/1674-1137/39/4/044103
[6]	YAN Ting-Zhi , LI Shan . Impact parameter dependence of the scaling of anisotropic flowsin intermediate energy heavy-ion collisions. Chinese Physics C, 2014, 38(8): 084104. doi: 10.1088/1674-1137/38/8/084104
[7]	MA Chun-Wang , SONG Heng-Li , PU Jie , ZHANG Tong-Lin , ZHANG Sha , WANG Shan-Shan , ZHAO Xin-Li , CHEN Li . Symmetry energy from neutron-rich fragments in heavy-ion collisions, and its dependence on incident energy, and impact parameters. Chinese Physics C, 2013, 37(2): 024102. doi: 10.1088/1674-1137/37/2/024102
[8]	FU Yong-Ping , LI Yun-De . Large transverse momentum dilepton production in heavy ion collisions with two-photon processes. Chinese Physics C, 2011, 35(2): 109-112. doi: 10.1088/1674-1137/35/2/001
[9]	FENG Xiu-Mei , ZHANG Ben-Wei . Drell-Yan dilepton production in relativistic heavy-ion collisions at RHIC. Chinese Physics C, 2011, 35(9): 829-832. doi: 10.1088/1674-1137/35/9/008
[10]	FU Yong-Ping , LI Yun-De . Photon production in relativistic heavy ion collisions with equilibrium and non-equilibrium QGP. Chinese Physics C, 2010, 34(2): 186-191. doi: 10.1088/1674-1137/34/2/006
[11]	LIU Gui-Hua , MA Yu-Gang , CAI Xiang-Zhou , FANG De-Qing , SHEN Wen-Qing , TIAN Wen-Dong , WANG Kun . Impact parameter and beam energy dependence for azimuthal asymmetry of direct photons and free protons in intermediate energy heavy-ion collisions. Chinese Physics C, 2009, 33(S1): 89-91. doi: 10.1088/1674-1137/33/S1/029
[12]	SU You-Wu , WANG Gui-Ling , LI Wu-Yuan , LI Zong-Qiang , LI Gui-Sheng , ZHENG Hua-Zhi . Neutron production at the heavy ion research facility in Lanzhou. Chinese Physics C, 2008, 32(5): 348-351. doi: 10.1088/1674-1137/32/5/004
[13]	WANG Ya-Ping , ZHOU Dai-Mei , HUANG Rui-Dian , CAI Xu . Collision geometry and particle production in high energy heavy ion collision experiments. Chinese Physics C, 2008, 32(4): 308-328. doi: 10.1088/1674-1137/32/4/014
[14]	Chen Liewen , Ge Lingxiao , Zhang Fengshou . “Neck” Formation and Fragmentation in Intermediate Energy Heavy-ion Collisions. Chinese Physics C, 1997, 21(S4): 73-78.
[15]	Chu Zhili , Zheng Yuming , Wang Fei , Sa Benhao , Lu Zhongdao . Unified Dynamical Simulation of Kaon and Pion Production in Heavy Ion Collisions. Chinese Physics C, 1996, 20(S2): 155-164.
[16]	Peng Hongan , Qin Kecheng , He Zhenmin . Hard Diffractive Production of Heavy Flavors in High Energy p+p(p) Collisions. Chinese Physics C, 1995, 19(S1): 31-38.
[17]	Zhao Weiqin , Liu Bo . Transverse Energy Dependence of Yield of Charmonium Production in Relativistic Heavy Ion Collisions. Chinese Physics C, 1995, 19(S1): 97-101.
[18]	Yu Lianzhi , Liu Lianshou , Cai Xu . Monte Carlo Investigation of the Fractal Structure of Multiparticle Production in High Energy Collisions. Chinese Physics C, 1992, 16(S2): 219-226.
[19]	Liu Yiming , Huo Lei , Jiang Yuzhen , Wang Shan , D. Keane , S. Y. Fung , S. Y. Chu . Source Density Distribution and Intensity Interferometry in High-energy Heavy-ion Collisions. Chinese Physics C, 1991, 15(S1): 33-41.
[20]	Wang Bing , Zeng Yaowu , Shen Wenqing , Zhan Wenlong , Zhou Jianqun , Feng Enpu , Zhu Yongtai , Feng Jun . Light-Particle Multidetector for the Intermediate Energy Heavy-Ion Reaction. Chinese Physics C, 1991, 15(S1): 79-84.

Access

Get Citation

ZHANG Song, CHEN Jin-Hui, MA Yu-Gang, XU Zhang-Bu, CAI Xiang-Zhou, MA Guo-Liang and ZHONG Chen. Hypertriton and light nuclei production at Λ-production subthreshold energy in heavy-ion collisions[J]. Chinese Physics C, 2011, 35(8): 741-746. doi: 10.1088/1674-1137/35/8/008

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2010-11-15
Revised: 1900-01-01

Article Metric

Article Views(2607)
PDF Downloads(443)
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, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Hypertriton and light nuclei production at Λ-production subthreshold energy in heavy-ion collisions

Received Date: 2010-11-15

Accepted Date: 1900-01-01

Available Online: 2011-08-05

Abstract: High-energy heavy-ion collisions produce abundant hyperons and nucleons. A dynamical coalescence model coupled with the ART model is employed to study the production probabilities of light clusters, deuteron (d), triton (t), helion (³He), and hypertriton (_Λ³H) at subthreshold energy of Λ production (≈ 1 GeV per nucleon). We study the dependence on the reaction system size of the coalescence penalty factor per additional nucleon and entropy per nucleon. The Strangeness Population Factor (S₃ / (³He × (Λ/p))) shows an extra suppression of hypertriton comparing to light clusters of the same mass number. This model predicts a hypertriton production cross-section of a few μb in ³⁶Ar+³⁶Ar, ⁴⁰Ca+⁴⁰Ca and ⁵⁶Ni+⁵⁶Ni in 1 A GeV reactions. The production rate is as high as a few hypertritons per million collisions, which shows that the fixed-target heavy-ion collisions at CSR (Lanzhou/China) at Λ subthreshold energy are suitable for breaking new ground in hypernuclear physics.

HTML

Reference (1)

Hypertriton and light nuclei production at Λ-production subthreshold energy in heavy-ion collisions

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Hypertriton and light nuclei production at Λ-production subthreshold energy in heavy-ion collisions

HTML

目录