Effective Masses of Pentaquark Θ<SUP>+</SUP> in Nuclear Matter

GUO Yan-Rui; LI Xi-Guo; ZHONG Xian-Hui; LIU Zi-Yu; JIN Gen-Ming

Chinese Physics C> 2007, Vol. 31> Issue(8) : 724-730

Effective Masses of Pentaquark Θ⁺ in Nuclear Matter

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China3 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou,Lanzhou 730000, China4 Department of Physics, Nankai University, Tianjin 300071, China

Abstract
HTML
Reference
Related

PDF

Abstract：
The properties of baryons in nuclear matter are analysed in the relativistic mean-field theory(RMF). It is found that the scalar field σ meson affects the properties of baryon at high density. A density dependent scalar coupling gσN is determined according to the idea of quark-meson coupling model and extended to RMF. It is shown that gσN affects the property of nuclear matter weakly at low density, but strongly at high density. The relation between the scalar density ρ_S and the nuclear density ρ and the effective mass of the pentaquark Θ⁺ are studied with the density dependent coupling constant. The density dependent scalar coupling obviously affects the effective masses of baryons in nuclear matter, especially at high density.

References

[1]

. Serot B D, Walecka J D. Adv. Nucl. Phys., 1986, 16: 12. Rufa M et al. Phys. Rev., 1988, C38: 390; Lalazissis G A, #214;nig J K, Ring P. Phys. Rev., 1997, C55: 540; Sharma MM, Nagarajan M A, Ring P. Phys. Lett., 1993, B312: 3773. Diakonov D, Petrov V, Polyakov M V. Z. Phys., 1997,A359: 3054. Nakano T et al(LEPS Collaboration). Phys. Rev. Lett.,2003, 91: 0120025. Barmin V V et al(DIANA Collaboration). Phys. At. Nucl.,2003, 66: 17156. Stepanyan S et al(CLAS Collaboration). Phys. Rev. Lett.,2003, 91: 2520017. Barth J et al(SAPHIR Collaboration). Phys. Lett., 2003,B572: 1278. Kubarovsky V et al. Phys. Rev. Lett., 2004, 92: 0320019. Aleev A et al(SVD Collaboration). Phys. Atom. Nucl.,2005, 68: 97410. Aratayn A E, Dololenko A G, Kubantsev MA. Phys. Atom.Nucl., 2004, 67: 68211. Airapetian A et al(HERMES Collaboration). Phys. Lett.,2004, B585: 213; ZEUS Collaboration. Phy. Lett., 2004,B591: 712. Buescher M. Nucl. Phys., 2005, A754: 23113. BAI J Z et al(BES Collaboration). Phys. Rev., 2004, D70:01200414. Battaglieri M et al(CLAS Collaboration). Phys. Rev. Lett.,2006, 96: 04200115. McKinnon B et al(CLAS Collaboration). Phys. Rev. Lett.,2006, 96: 21200116. Niccolai S et al(CLAS Collaboration). Phys. Rev. Lett.,2006, 97: 03200117. Guzey V. arXiv:hep-ph/060812918. Kubarovsky V et al(CLAS Collaboration). Phys. Rev.Lett., 2006, 97: 10200119. HUANG H Z(STAR Collaboration). Int. J. Mod. Phys.,2006, A21: 82520. ZHU S L. Phys. Rev. Lett., 2003, 91: 23200221. Csikor F. Journal of High Energy Physics, 2003, 0311: 070.arXiv:hep-lat/030909022. Kim H C, Lee C H, Lee H J et al. Phys. Soc., 2005, 46:39323. HUANG X G, HAO X W, ZHUANG P F. Phys. Lett.,2005, B607: 7824. Vicente Viacas M J, Cabrera D, LI Q B et al. Talk Presentedat the International Workshop PENTAQUARK04July 20-23, 2004, SPring-8, Japan. arXiv:nucl-th/041005625. SHEN H, Toki H. Phys. Rev., 2005, C71: 06520826. GUO Yan-Rui, LI Xi-Guo, GAO Yuan et al. HEP NP,2005, 29(6): 533(in Chinese)(郭艳蕊，李希国，高远等.高能物理与核物理，2005, 29(6):533)27. GAO Yuan, LI Xi-Guo, LI Yong-Qing et al. HEP NP,2005, 29(11): 1067(in Chinese)(高远，李希国，李永青等.高能物理与核物理，2005, 29(11):1067)28. GAO Yuan, LI Xi-Guo, LI Yong-Qing et al. HEP NP,2007, 31(1): 48-51(in Chinese)(高远，李希国，李永青等.高能物理与核物理，2007, 31(1):48-51)29. Lee X G, GAO Y et al. arxiV:nucl-th/050201030. ZHONG X H, TAN Y H, PENG G X et al. Phys. Rev.,2005, C71: 015206; ZHONG X H, NING P Z. Phys. Rev.,2005, C72: 06521231. Blunden P G, Miller G A. Phys. Rev., 1996, C54: 35932. Guichon Pierre A M et al. Nucl. Phys., 1996, A601: 34933. Tsushima K, Saito K, Haidenbauer J. Nucl. Phys., 1998,A630: 691

[1]	ZHOU Xia , TIAN Hai-Jun , ZHENG Xiao-Ping . Bulk Viscosity of Quark Matter in Magnetic Field. Chinese Physics C, 2007, 31(1): 38-42.
[2]	LI Xi-Guo , LIU Xin-Yu , GAO Yuan . Effective Mass of Kaons in Hyperon-Rich Matter. Chinese Physics C, 2007, 31(10): 922-928.
[3]	LI Gui-Jun , CHEN Hong , ZOU Bing-Song , JIANG Huan-Qing , HUANG Shu-Yi . The N^*(1710) contribution to the Θ⁺ production cross sections in p-p collisions. Chinese Physics C, 2006, 30(6): 542-547.
[4]	ZHANG Ao , LIU Yan-Rui , HUANG Peng-Zhi , DENG Wei-Zhen , CHEN Xiao-Lin , ZHU Shi-Lin . JP=21－Pentaquarks in Jaffe and Wilczek's Diquark Model. Chinese Physics C, 2005, 29(3): 250-257.
[5]	LU Xiao-Rui , MAO Ya-Jun , MA Bo-Qiang . Pentaquark Update. Chinese Physics C, 2005, 29(2): 210-218.
[6]	GUO Yan-Rui , LI Xi-Guo , GAO Yuan , LIU Jian-Ye . Effective Mass of Pentaquark Θ+ in Dense Matter. Chinese Physics C, 2005, 29(6): 533-536.
[7]	CHEN Yan-Jun , GUO Hua . Effects of Nuclear Matter on Messon Masses. Chinese Physics C, 2004, 28(4): 392-397.
[8]	LI Wen-Wu , LIU Yan-Rui , HUANG Peng-Zhi , DENG Wei-Zhen , CHEN Xiao-Lin , ZHU Shi-Lin . Magnetic Moments of JP=3/2+ Pentaquarks. Chinese Physics C, 2004, 28(9): 918-926.
[9]	MAO Ya-Jun . Search for the Pentaquark at the HERMES. Chinese Physics C, 2004, 28(12): 1332-1335.
[10]	DONG Dong-Qiao , CHEN Wei , WEN De-Hua , LIU Liang-Gang . Study of the Relation Between a Mass and Nuclear Binding Energy in Chiral σ Model. Chinese Physics C, 2003, 27(10): 892-896.
[11]	ZUO Wei , Lombardo U , LIU Jian-Ye , LI Jun-Qing . Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach (Ⅳ) Single-Particle Potential and Effective Mass. Chinese Physics C, 2003, 27(5): 416-420.
[12]	SUN Bao-Xi , LV Xiao-Fu , SHEN Peng-Nian , ZHAO En-Guang . Effective Photon Mass in Finite Nuclei. Chinese Physics C, 2003, 27(4): 337-340.
[13]	GAO Yuan , LI Xi-Guo , JIA Duoje . Kaon Effective Mass in Nuclear Matter. Chinese Physics C, 2003, 27(11): 995-998.
[14]	TANG Shu-Pian , XU Yuan . IN-Medium Effective Chiral Lagrangian and the Pion Mass in Nuclear Matter. Chinese Physics C, 2001, 25(12): 1197-1205.
[15]	PENG GuangXiong , JIANG HuanQing , LIU ZhiJun , ZHOU LeMing , LIU Bo , CHENG XingGuo , LI JingHua . Charge Dependence of the Critical Density of Strange Quark Matter in a New Mass Scaling. Chinese Physics C, 2000, 24(8): 732-738.
[16]	Guo Hua . In-medium QMC Model Parameters and Quark Condensation in Nuclear Matter. Chinese Physics C, 1999, 23(5): 459-468.
[17]	CHENG Qing-Hua , ZHUANG Peng-Fei , LIU Lian-Shou . Final State Distribution and Signal of Quark-Gluon Plasma in High Energy Heavy-Ion Collisions. Chinese Physics C, 1992, 16(5): 439-445.
[18]	CUI Yun-Long , QIU Xi-Jun . THE PROPERTIES OF NUCLEAR MATTER AT LOW TEMPERATURE IN A POSSIBLE QUARK MECHANISM. Chinese Physics C, 1990, 14(6): 525-531.
[19]	SUN Yao-De , BI Pin-Zhen . THE INFLUENCE OF THE EFFECTIVE MASS OF GLUON ON HEAVY QUARK POTENTIAL. Chinese Physics C, 1989, 13(5): 429-432.
[20]	SHEN Qing-Biao , LI Zhu-Xia , SHI Xiang-Jun , TIAN Ye , ZHUO Yi-Zhong . off-shell SINGLE-PARTICLE POTENTIAL AND EFFECTIVE MASS CALCULATION WITH SKYRME INTERACTIONS IN NUCLEAR MATTER. Chinese Physics C, 1985, 9(2): 220-228.

Access

Get Citation

GUO Yan-Rui, LI Xi-Guo, ZHONG Xian-Hui, LIU Zi-Yu and JIN Gen-Ming. Effective Masses of Pentaquark Θ⁺ in Nuclear Matter[J]. Chinese Physics C, 2007, 31(8): 724-730.

GUO Yan-Rui, LI Xi-Guo, ZHONG Xian-Hui, LIU Zi-Yu and JIN Gen-Ming. Effective Masses of Pentaquark Θ⁺ in Nuclear Matter[J]. Chinese Physics C, 2007, 31(8): 724-730. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2006-11-07
Revised: 2007-03-12

Article Metric

Article Views(3113)
PDF Downloads(701)
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

Effective Masses of Pentaquark Θ⁺ in Nuclear Matter

Corresponding author: GUO Yan-Rui,

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China3 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou,Lanzhou 730000, China4 Department of Physics, Nankai University, Tianjin 300071, China

Received Date: 2006-11-07

Accepted Date: 2007-03-12

Available Online: 2007-08-05

Abstract: The properties of baryons in nuclear matter are analysed in the relativistic mean-field theory(RMF). It is found that the scalar field σ meson affects the properties of baryon at high density. A density dependent scalar coupling gσN is determined according to the idea of quark-meson coupling model and extended to RMF. It is shown that gσN affects the property of nuclear matter weakly at low density, but strongly at high density. The relation between the scalar density ρ_S and the nuclear density ρ and the effective mass of the pentaquark Θ⁺ are studied with the density dependent coupling constant. The density dependent scalar coupling obviously affects the effective masses of baryons in nuclear matter, especially at high density.

HTML

Reference (1)

Effective Masses of Pentaquark Θ⁺ in Nuclear Matter

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Effective Masses of Pentaquark Θ⁺ in Nuclear Matter

Corresponding author: GUO Yan-Rui,

HTML

目录

Effective Masses of Pentaquark Θ+ in Nuclear Matter

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Effective Masses of Pentaquark Θ+ in Nuclear Matter

Corresponding author: GUO Yan-Rui,

HTML

目录

Effective Masses of Pentaquark Θ⁺ in Nuclear Matter

Effective Masses of Pentaquark Θ⁺ in Nuclear Matter