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

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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.

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[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

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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

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Received: 2010-11-15
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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

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.

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

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

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