IN-MEDIUM PROPERTIES OF KAONS IN A CHIRAL APPROACH

被引：0
|
作者：
Cui, Yue-Lei [1 ]
Sun, Bao-Xi [1 ]
机构：
[1] Beijing Univ Technol, Coll Appl Sci, Inst Theoret Phys, Beijing 100022, Peoples R China
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS | 2008年 / 17卷 / 09期
关键词：
Chiral Lagrangian; Kaon-baryon interactions; Nuclear matter;
D O I：
10.1142/S0218301308010878
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The first order self-energy corrections of the kaon in the symmetric nuclear matter are calculated from kaon-nucleon scattering matrix elements using a chiral Lagrangian within the framework of relativistic mean field approximation. It shows that the effective mass and the potential of K+ meson are identical with those of K- meson in the nuclear matter, respectively. The effective mass of the kaon in the nuclear matter decreases with the nuclear density increasing, and is not relevant to the kaon-nucleon Sigma term. The kaon-nucleus potential is positive and increases with the nuclear density. Moreover, the influence of the resonance Lambda(1405) on the K--nucleus potential due to the re-scattering term is discussed. Our results indicate the K- meson could not be bound in the nuclei even if the contribution of Lambda(1405) resonance is considered.
引用
收藏
页码：1895 / 1905
页数：11
相关论文
共 50 条
  • [1] Another approach to the in-medium chiral condensates
    Peng, GX
    Lombardo, U
    Loewe, M
    Chiang, HC
    [J]. PHYSICS LETTERS B, 2002, 548 (3-4) : 189 - 195
  • [2] In-Medium Properties of Kaons and Antikaons as Studied by Threshold Production in Nuclear Collisions
    Grosse, E.
    [J]. NUCLEAR PHYSICS A, 1999, 654 (01) : 501C - 504C
  • [3] In-Medium Modification of Meson Properties in a Chiral Quark Model
    Radzhabov, A. E.
    Volkov, M. K.
    Yudichev, V. L.
    [J]. PHYSICS OF PARTICLES AND NUCLEI, 2008, 39 (07) : 1050 - 1051
  • [4] In-medium modification of meson properties in a chiral quark model
    A. E. Radzhabov
    M. K. Volkov
    V. L. Yudichev
    [J]. Physics of Particles and Nuclei, 2008, 39 : 1050 - 1051
  • [5] In-medium chiral perturbation theory
    Wirzba, A
    Meissner, UG
    Oller, JA
    [J]. EUROPEAN PHYSICAL JOURNAL A, 2003, 18 (2-3): : 507 - 510
  • [6] In-medium chiral perturbation theory
    A. Wirzba
    Ulf-G Meißner
    J. A. Oller
    [J]. The European Physical Journal A - Hadrons and Nuclei, 2003, 18 : 507 - 510
  • [7] Hypernuclei and in-medium chiral dynamics
    Finelli, P.
    [J]. EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS, 2008, 156 (1): : 183 - 190
  • [8] Hypernuclei and in-medium chiral dynamics
    P. Finelli
    [J]. The European Physical Journal Special Topics, 2008, 156 : 183 - 190
  • [9] In-medium chiral perturbation theory
    Wirzba, A
    [J]. PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, VOL 50, NO 2: QUARKS IN HADRONS AND NUCLEI, 2003, 50 (02): : 217 - 225
  • [10] In-medium chiral perturbation theory
    Meissner, UG
    Oller, JA
    Wirzba, A
    [J]. PARTICLES AND FIELDS, PROCEEDINGS, 2002, 623 : 216 - 222
12345