Chiral condensates in quark and nuclear matter
Peng GX(彭光雄); Jiang HQ(姜焕清); Peng, GX; Chiang, HC; Ning, PZ; Lombardo, U; Loewe, M
刊名INTERNATIONAL JOURNAL OF MODERN PHYSICS A
2003
卷号18期号:18页码:3151-3174
关键词chiral condensates quark matter nuclear matter in-medium
学科分类Physics
DOI10.1142/S0217751X03014046
通讯作者China Ctr Adv Sci & Technol, World Lab, Beijing 100080, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China ; Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China ; Dipartimento Fis, I-95123 Catania, Italy ; Ist Nazl Fis Nucl, LNS, I-95123 Catania, Italy ; Pontificia Univ Catolica Chile, Fac Fis, Santiago 22, Chile
文章类型Article
英文摘要We present a novel treatment of calculating the in-medium quark condensates. The advantage of this approach is that one does not need to make further assumptions on the derivatives of model parameters with respect to the quark current mass. The normally accepted model-independent result in nuclear matter is naturally reproduced. The change of the quark-condensate induced by interactions depends on the incompressibility of nuclear matter. When it is greater than 265 MeV, the density at which the condensate vanishes is higher than that from the linear extrapolation. For the chiral condensate in quark matter, a similar model-independent linear behavior is found at lower densities, which means that the decreasing speed of the condensate in quark matter is merely half of that in nuclear matter if the pion-nucleon sigma commutator is six times the average current mass of a and d quarks. The modification due to QCD-like interactions is found to slow the decreasing speed of the condensate, compared with the linear extrapolation.
类目[WOS]Physics, Nuclear ; Physics, Particles & Fields
研究领域[WOS]Physics
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语种英语
WOS记录号WOS:000184973800004
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被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239875
专题中国科学院高能物理研究所_理论物理室_期刊论文
作者单位中国科学院高能物理研究所
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GB/T 7714
Peng GX,Jiang HQ,Peng, GX,et al. Chiral condensates in quark and nuclear matter[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2003,18(18):3151-3174.
APA 彭光雄.,姜焕清.,Peng, GX.,Chiang, HC.,Ning, PZ.,...&Loewe, M.(2003).Chiral condensates in quark and nuclear matter.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,18(18),3151-3174.
MLA 彭光雄,et al."Chiral condensates in quark and nuclear matter".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 18.18(2003):3151-3174.
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