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1.
YANG Sheng-Dong 《理论物理通讯》2001,(10)
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[5]M.Gell-Mann,R.Oakes and B.Renner,Phys.Rev.175(1968) 2195. 相似文献
2.
HOU Feng-Yao 《理论物理通讯》2004,42(12)
[1]C.D. Roberts and A.G. Williams, Prog. Part. Nucl. Phys.33 (1994) 477, and references therein.
[2]P.C. Tandy, Prog. Part. Nucl. Phys. 39 (1997) 117; R.T.Cahill and S.M. Gunner, Fiz. B7 (1998) 17, and references therein.
[3]R. Alkofer and L. von Smekal, Phys. Rep. 353 (2001)281; C.S. Fischer and R. Alkofer, Phys. Rev. D67 (2003)094020, and references therein.
[4]C.D. Roberts and S.M. Schmidt, Prog. Part. Nucl. Phys.45S1 (2000) 1, and references therein.
[5]P. Maris and C.D. Roberts, Int. J. Mod Phys. E12 (2003)297.
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[7]M.R. Frank and T. Meissner, Phys. Rev C57 (1998) 345.
[8]P. Maris, C.D. Roberts, and P.C. Tandy, Phys. Lett.B420 (1998) 267.
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[14]A. Bender, D. Blaschke, Y. Kalinovskii, and C.D.Roberts, Phys. Rev. Lett. 77 (1996) 3724.
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[16]Xiao-Fu L, Yu-Xin Liu, Hong-Shi Zong, and En-Guang Zhao, Phys. Rev. C58 (1998) 1195; Yu-Xin Liu, DongFeng Gao, and Hua Guo, Nucl. Phys. A695 (2001) 353;Yu-Xin Liu, Dong-Feng Gao, and Hua Guo, Phys. Rev.C68 (2003) 035204.
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[20]Hong-Shi Zong, Xiao-Fu Lu, Jian-Zhong Gu, Chao-Hsi Chang, and En-Guang Zhao, Phys. Rev. C60 (1999)055208; Hong-Shi Zong, Xiao-Fu Lui, Fan Wang, Chao-Hsi Chang, and En-Guang Zhao, Commun. Theor. Phys. (Beijing, China) 34 (2000) 563; Hong-Shi Zong, Yu-Xin Liu,Xiao-Fu Lu, Fan Wang, and En-Guang Zhao, Commun.Theor. Phys. (Beijing, China) 36 (2001) 187; Hong-Shi Zong, Xiang-Song Chen, Fan Wang, Chao-Hsi Chang, and En-Guang Zhao, Phys. Rev. C66 (2002) 015201; HongTing Yang, Hong-Shi Zong, Jia-Lun Ping, and Fan Wang,Phys. Lett. B557 (2003) 33; Hong-Shi Zong, Jia-Lun Ping, Hong-Ting Yang, Xiao-Fu Lu, and Fan Wang, Phys.Rev. D67 (2003) 074004; Hong-Shi Zong, Shi Qi, Wei Chen, Wei-Min Sun, and En-Guang, Zhao, Phys. Lett.B576 (2003) 289; Wei-Min Sun, Hong-Shi Zong, XiangSong Chen, and Fan Wang, Phys. Lett. B569 (2003) 211;Hong-Shi Zong, Xiao-Hua Wu, Feng-Yao Hou, and EnGuang Zhao, Chin. Phys. Lett. 21 (2004) 43; Wei-Min Sun, Hong-Shi Zong, Xiang-Song Chen, and Fan Wang,Int. J. Mod. Phys. A19 (2004 261; Hong-Shi Zong, FengYao Hou, Wei-Min Sun, and Xiao-Hua WU, Commun.Theor. Physics. (Beijng, China) 42 (2004) 581.
[21]P. Maris and P.C. Tandy, Phys. Rev. C60 (1999) 055214. 相似文献
3.
HOUFeng-Yao GUJian-Zhong ZONGHong-Shi LUXiao-Fu 《理论物理通讯》2004,42(6):867-870
Based on the Dyson-Schwinger approach, a method for obtaining the small current quark mass effect on the dressed gluon and quark propagator is developed. A comparison with the results of the previous approach is given. 相似文献
4.
We discuss some problems concerned with the normalization of the BS wave function in connection with Ward-Thkahashi identities in the Lorentz covariant Bethe-Salpeter formalism proposed in the previous work. Physical quantities of the pion as a Goldstone boson, including the π0 → 2γ amplitude are calculated in the QCD motivated models and results are in agreement with the experimental data. 相似文献
5.
ZONGHong-Shi FENGHong-Tao SUNWei-Min DINGXiao-Ping PINGJia-Lun 《理论物理通讯》2004,42(2):261-266
A method for obtaining the small current quark mass effect on the dressed quark propagator within the Dyson Schwinger approach is developed. From this the small current quark mass dependence of the bag constant is evaluated. It is found that the bag constant decreases with the increasing current quark mass and the contribution of the current quark mass cannot be dropped. 相似文献
6.
A method for obtaining the small current quark mass effect on the dressed quark propagator within the Dyson-Schwinger approach is developed. From this the small current quark mass dependence of the bag constant is evaluated. It is found that the bag constant decreases with the increasing current quark mass and the contribution of the current quark mass cannot be dropped. 相似文献
7.
LIU LiangGang 《理论物理通讯》2000,34(4):655-662
The MIT bag model, chiral bag model and cloudy bag model are revisited. A typical work on the hadron mass calculation by chiral bag model and cloudy bag model is shown in more details with the quark-quark-pi vertex correction and quark self-energy being emphasized. More details are given to review the quark-meson coupling model and its application in nuclear matter. We put forth the Lagrangian of the quark-meson coupling model and studied the possibility of using the model to calculate the hadron mass. 相似文献
8.
Wojciech Broniowski Alexander E. Dorokhov Enrique Ruiz Arriola 《Few-Body Systems》2012,52(3-4):295-300
The transversity Generalized Parton Distributions (tGPDs) and related transversity form factors of the pion are evaluated in chiral quark models, both local (Nambu–Jona–Lasinio) and nonlocal, involving a momentum-dependent quark mass. The obtained tGPDs satisfy all a priori formal requirements, such as the proper support, normalization, and polynomiality. We evaluate generalized transversity form factors accessible from the recent lattice QCD calculations. These form factors, after the necessary QCD evolution, agree very well with the lattice data, confirming the fact that the spontaneously broken chiral symmetry governs the structure of the pion also in the case of the transversity observables. 相似文献
9.
The decay processes from heavy to light pseudoscalar mesons such as π, K, η,η' are studied in a relativistic constituent quark model based on the BS formalism. It is emphasized that the negative energy projector operators's contributions in the BS wavefunctions for light pseudoscalar mesons have to be considered. By taking into account these contributions, the previously encountered difficulties in calculating the decay constants and form factors are found to be removed. A11 the form factors for transitions such as D→π, D→K, Ds→K, Ds→η, Ds→η', B→π, Bs→K are estimated and the branching ratios for these semileptonic decays are calculated. The results of our calculations are consistent with experimental values. 相似文献
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Using the experimental values of mb/mr ratio to estimate the possible mass of top quark. 相似文献
13.
Based on the Dyson-Schwinger equations of QCD in the "rainbow" approximation, the fully dressed quarkpropagator Sf(p) is investigated, and then an algebraic parametrization form of the propagator is obtained as a solutionof the equations. The dressed quark amplitudes Af and Bf built up the fully dressed quark propagator and the dynamicalrunning masses Mf defined by Af and Bf for light quarks u, d and s are calculated, respectively. Using the predictedrunning masses Mf, quark condensates <0|q(0)q(0)|0> = -(0.255 GeV)a for u, d quarks, and <0|s s|0> = 0.8<0|q(0)q(0)]0)for s quark, and experimental pion decay constant fπ = 0.093 GeV, the masses of Goldstone bosons K, π, and η are alsoevaluated. The numerical results show that the masses of quarks are dependent on their momentum p2. The fully dressedquark amplitudes Af and Bf have correct behaviors which can be used for many purposes in our future researches onnonperturbative QCD. 相似文献
14.
We discuss the relation between the pole mass and MS mass of top quark in the framework of the supersymmetric QCD.We find that the supersymmetric contributions are comparable to those of the standard model. 相似文献
15.
The influence of density-dependent quark masses, based on the Nambu-Jona-Lasinio model, on K+-nucleus scattering is investigated. Introduction of this density dependence is found to be a possible explanation for the missing theoretical K+-nucleus cross section 相似文献
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We develop a new framework for the study of the nuclear matter based on the linear sigma model.We introduce a completely new viewpoint on the treatment of the nuclear matter with the inclusion of the pion.We extend the relativistic chiral mean field model by using the similar method in the tensor optimized shell model.We also regulate the pion-nucleon interaction by considering the form-factor and short range repulsion effects.We obtain the equation of state of nuclear matter and study the importance of the pion effect. 相似文献
18.
Based on a relativistic quark model approach, the transition properties of the first nucleon resonance △(1232), and the coupling constants gπNN, g△πN are investigated. Tvo different vays to remove the center of mass motion are considered. The results of the relativistic approaches with and without center ofmass correction are compared with those of nonrelativistic constituent quark model. Moreover, pion meson cloud effect on these calculated observables is explicitly addressed. Better results are obtained by taking the pion meson cloud into account. 相似文献
19.
The Influence on the Baryon and Its Resonances From a New Additional Mass Term in the Skyrme Model
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This paper studied the influence on the baryon and its resonances from a new additional mass term which is derived by the Skyrme Lagr ngian after quantum mechanical treatment. 相似文献
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